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Jesse Hallam 2018-07-26 16:25:25 -04:00
parent f387133c21
commit 8788b41ab2
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321 changed files with 55322 additions and 145 deletions
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15
build/manifest/vendor/go.uber.org/atomic/.codecov.yml generated vendored Normal file
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coverage:
range: 80..100
round: down
precision: 2
status:
project: # measuring the overall project coverage
default: # context, you can create multiple ones with custom titles
enabled: yes # must be yes|true to enable this status
target: 100 # specify the target coverage for each commit status
# option: "auto" (must increase from parent commit or pull request base)
# option: "X%" a static target percentage to hit
if_not_found: success # if parent is not found report status as success, error, or failure
if_ci_failed: error # if ci fails report status as success, error, or failure

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build/manifest/vendor/go.uber.org/atomic/.gitignore generated vendored Normal file
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.DS_Store
/vendor
/cover
cover.out
lint.log
# Binaries
*.test
# Profiling output
*.prof

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build/manifest/vendor/go.uber.org/atomic/.travis.yml generated vendored Normal file
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sudo: false
language: go
go_import_path: go.uber.org/atomic
go:
- 1.7
- 1.8
- 1.9
cache:
directories:
- vendor
install:
- make install_ci
script:
- make test_ci
- scripts/test-ubergo.sh
- make lint
after_success:
- bash <(curl -s https://codecov.io/bash)

19
build/manifest/vendor/go.uber.org/atomic/LICENSE.txt generated vendored Normal file
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Copyright (c) 2016 Uber Technologies, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

64
build/manifest/vendor/go.uber.org/atomic/Makefile generated vendored Normal file
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PACKAGES := $(shell glide nv)
# Many Go tools take file globs or directories as arguments instead of packages.
PACKAGE_FILES ?= *.go
# The linting tools evolve with each Go version, so run them only on the latest
# stable release.
GO_VERSION := $(shell go version | cut -d " " -f 3)
GO_MINOR_VERSION := $(word 2,$(subst ., ,$(GO_VERSION)))
LINTABLE_MINOR_VERSIONS := 7 8
ifneq ($(filter $(LINTABLE_MINOR_VERSIONS),$(GO_MINOR_VERSION)),)
SHOULD_LINT := true
endif
export GO15VENDOREXPERIMENT=1
.PHONY: build
build:
go build -i $(PACKAGES)
.PHONY: install
install:
glide --version || go get github.com/Masterminds/glide
glide install
.PHONY: test
test:
go test -cover -race $(PACKAGES)
.PHONY: install_ci
install_ci: install
go get github.com/wadey/gocovmerge
go get github.com/mattn/goveralls
go get golang.org/x/tools/cmd/cover
ifdef SHOULD_LINT
go get github.com/golang/lint/golint
endif
.PHONY: lint
lint:
ifdef SHOULD_LINT
@rm -rf lint.log
@echo "Checking formatting..."
@gofmt -d -s $(PACKAGE_FILES) 2>&1 | tee lint.log
@echo "Checking vet..."
@$(foreach dir,$(PACKAGE_FILES),go tool vet $(dir) 2>&1 | tee -a lint.log;)
@echo "Checking lint..."
@$(foreach dir,$(PKGS),golint $(dir) 2>&1 | tee -a lint.log;)
@echo "Checking for unresolved FIXMEs..."
@git grep -i fixme | grep -v -e vendor -e Makefile | tee -a lint.log
@[ ! -s lint.log ]
else
@echo "Skipping linters on" $(GO_VERSION)
endif
.PHONY: test_ci
test_ci: install_ci build
./scripts/cover.sh $(shell go list $(PACKAGES))

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build/manifest/vendor/go.uber.org/atomic/README.md generated vendored Normal file
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# atomic [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov] [![Go Report Card][reportcard-img]][reportcard]
Simple wrappers for primitive types to enforce atomic access.
## Installation
`go get -u go.uber.org/atomic`
## Usage
The standard library's `sync/atomic` is powerful, but it's easy to forget which
variables must be accessed atomically. `go.uber.org/atomic` preserves all the
functionality of the standard library, but wraps the primitive types to
provide a safer, more convenient API.
```go
var atom atomic.Uint32
atom.Store(42)
atom.Sub(2)
atom.CAS(40, 11)
```
See the [documentation][doc] for a complete API specification.
## Development Status
Stable.
<hr>
Released under the [MIT License](LICENSE.txt).
[doc-img]: https://godoc.org/github.com/uber-go/atomic?status.svg
[doc]: https://godoc.org/go.uber.org/atomic
[ci-img]: https://travis-ci.org/uber-go/atomic.svg?branch=master
[ci]: https://travis-ci.org/uber-go/atomic
[cov-img]: https://codecov.io/gh/uber-go/atomic/branch/master/graph/badge.svg
[cov]: https://codecov.io/gh/uber-go/atomic
[reportcard-img]: https://goreportcard.com/badge/go.uber.org/atomic
[reportcard]: https://goreportcard.com/report/go.uber.org/atomic

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build/manifest/vendor/go.uber.org/atomic/atomic.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package atomic provides simple wrappers around numerics to enforce atomic
// access.
package atomic
import (
"math"
"sync/atomic"
"time"
)
// Int32 is an atomic wrapper around an int32.
type Int32 struct{ v int32 }
// NewInt32 creates an Int32.
func NewInt32(i int32) *Int32 {
return &Int32{i}
}
// Load atomically loads the wrapped value.
func (i *Int32) Load() int32 {
return atomic.LoadInt32(&i.v)
}
// Add atomically adds to the wrapped int32 and returns the new value.
func (i *Int32) Add(n int32) int32 {
return atomic.AddInt32(&i.v, n)
}
// Sub atomically subtracts from the wrapped int32 and returns the new value.
func (i *Int32) Sub(n int32) int32 {
return atomic.AddInt32(&i.v, -n)
}
// Inc atomically increments the wrapped int32 and returns the new value.
func (i *Int32) Inc() int32 {
return i.Add(1)
}
// Dec atomically decrements the wrapped int32 and returns the new value.
func (i *Int32) Dec() int32 {
return i.Sub(1)
}
// CAS is an atomic compare-and-swap.
func (i *Int32) CAS(old, new int32) bool {
return atomic.CompareAndSwapInt32(&i.v, old, new)
}
// Store atomically stores the passed value.
func (i *Int32) Store(n int32) {
atomic.StoreInt32(&i.v, n)
}
// Swap atomically swaps the wrapped int32 and returns the old value.
func (i *Int32) Swap(n int32) int32 {
return atomic.SwapInt32(&i.v, n)
}
// Int64 is an atomic wrapper around an int64.
type Int64 struct{ v int64 }
// NewInt64 creates an Int64.
func NewInt64(i int64) *Int64 {
return &Int64{i}
}
// Load atomically loads the wrapped value.
func (i *Int64) Load() int64 {
return atomic.LoadInt64(&i.v)
}
// Add atomically adds to the wrapped int64 and returns the new value.
func (i *Int64) Add(n int64) int64 {
return atomic.AddInt64(&i.v, n)
}
// Sub atomically subtracts from the wrapped int64 and returns the new value.
func (i *Int64) Sub(n int64) int64 {
return atomic.AddInt64(&i.v, -n)
}
// Inc atomically increments the wrapped int64 and returns the new value.
func (i *Int64) Inc() int64 {
return i.Add(1)
}
// Dec atomically decrements the wrapped int64 and returns the new value.
func (i *Int64) Dec() int64 {
return i.Sub(1)
}
// CAS is an atomic compare-and-swap.
func (i *Int64) CAS(old, new int64) bool {
return atomic.CompareAndSwapInt64(&i.v, old, new)
}
// Store atomically stores the passed value.
func (i *Int64) Store(n int64) {
atomic.StoreInt64(&i.v, n)
}
// Swap atomically swaps the wrapped int64 and returns the old value.
func (i *Int64) Swap(n int64) int64 {
return atomic.SwapInt64(&i.v, n)
}
// Uint32 is an atomic wrapper around an uint32.
type Uint32 struct{ v uint32 }
// NewUint32 creates a Uint32.
func NewUint32(i uint32) *Uint32 {
return &Uint32{i}
}
// Load atomically loads the wrapped value.
func (i *Uint32) Load() uint32 {
return atomic.LoadUint32(&i.v)
}
// Add atomically adds to the wrapped uint32 and returns the new value.
func (i *Uint32) Add(n uint32) uint32 {
return atomic.AddUint32(&i.v, n)
}
// Sub atomically subtracts from the wrapped uint32 and returns the new value.
func (i *Uint32) Sub(n uint32) uint32 {
return atomic.AddUint32(&i.v, ^(n - 1))
}
// Inc atomically increments the wrapped uint32 and returns the new value.
func (i *Uint32) Inc() uint32 {
return i.Add(1)
}
// Dec atomically decrements the wrapped int32 and returns the new value.
func (i *Uint32) Dec() uint32 {
return i.Sub(1)
}
// CAS is an atomic compare-and-swap.
func (i *Uint32) CAS(old, new uint32) bool {
return atomic.CompareAndSwapUint32(&i.v, old, new)
}
// Store atomically stores the passed value.
func (i *Uint32) Store(n uint32) {
atomic.StoreUint32(&i.v, n)
}
// Swap atomically swaps the wrapped uint32 and returns the old value.
func (i *Uint32) Swap(n uint32) uint32 {
return atomic.SwapUint32(&i.v, n)
}
// Uint64 is an atomic wrapper around a uint64.
type Uint64 struct{ v uint64 }
// NewUint64 creates a Uint64.
func NewUint64(i uint64) *Uint64 {
return &Uint64{i}
}
// Load atomically loads the wrapped value.
func (i *Uint64) Load() uint64 {
return atomic.LoadUint64(&i.v)
}
// Add atomically adds to the wrapped uint64 and returns the new value.
func (i *Uint64) Add(n uint64) uint64 {
return atomic.AddUint64(&i.v, n)
}
// Sub atomically subtracts from the wrapped uint64 and returns the new value.
func (i *Uint64) Sub(n uint64) uint64 {
return atomic.AddUint64(&i.v, ^(n - 1))
}
// Inc atomically increments the wrapped uint64 and returns the new value.
func (i *Uint64) Inc() uint64 {
return i.Add(1)
}
// Dec atomically decrements the wrapped uint64 and returns the new value.
func (i *Uint64) Dec() uint64 {
return i.Sub(1)
}
// CAS is an atomic compare-and-swap.
func (i *Uint64) CAS(old, new uint64) bool {
return atomic.CompareAndSwapUint64(&i.v, old, new)
}
// Store atomically stores the passed value.
func (i *Uint64) Store(n uint64) {
atomic.StoreUint64(&i.v, n)
}
// Swap atomically swaps the wrapped uint64 and returns the old value.
func (i *Uint64) Swap(n uint64) uint64 {
return atomic.SwapUint64(&i.v, n)
}
// Bool is an atomic Boolean.
type Bool struct{ v uint32 }
// NewBool creates a Bool.
func NewBool(initial bool) *Bool {
return &Bool{boolToInt(initial)}
}
// Load atomically loads the Boolean.
func (b *Bool) Load() bool {
return truthy(atomic.LoadUint32(&b.v))
}
// CAS is an atomic compare-and-swap.
func (b *Bool) CAS(old, new bool) bool {
return atomic.CompareAndSwapUint32(&b.v, boolToInt(old), boolToInt(new))
}
// Store atomically stores the passed value.
func (b *Bool) Store(new bool) {
atomic.StoreUint32(&b.v, boolToInt(new))
}
// Swap sets the given value and returns the previous value.
func (b *Bool) Swap(new bool) bool {
return truthy(atomic.SwapUint32(&b.v, boolToInt(new)))
}
// Toggle atomically negates the Boolean and returns the previous value.
func (b *Bool) Toggle() bool {
return truthy(atomic.AddUint32(&b.v, 1) - 1)
}
func truthy(n uint32) bool {
return n&1 == 1
}
func boolToInt(b bool) uint32 {
if b {
return 1
}
return 0
}
// Float64 is an atomic wrapper around float64.
type Float64 struct {
v uint64
}
// NewFloat64 creates a Float64.
func NewFloat64(f float64) *Float64 {
return &Float64{math.Float64bits(f)}
}
// Load atomically loads the wrapped value.
func (f *Float64) Load() float64 {
return math.Float64frombits(atomic.LoadUint64(&f.v))
}
// Store atomically stores the passed value.
func (f *Float64) Store(s float64) {
atomic.StoreUint64(&f.v, math.Float64bits(s))
}
// Add atomically adds to the wrapped float64 and returns the new value.
func (f *Float64) Add(s float64) float64 {
for {
old := f.Load()
new := old + s
if f.CAS(old, new) {
return new
}
}
}
// Sub atomically subtracts from the wrapped float64 and returns the new value.
func (f *Float64) Sub(s float64) float64 {
return f.Add(-s)
}
// CAS is an atomic compare-and-swap.
func (f *Float64) CAS(old, new float64) bool {
return atomic.CompareAndSwapUint64(&f.v, math.Float64bits(old), math.Float64bits(new))
}
// Duration is an atomic wrapper around time.Duration
// https://godoc.org/time#Duration
type Duration struct {
v Int64
}
// NewDuration creates a Duration.
func NewDuration(d time.Duration) *Duration {
return &Duration{v: *NewInt64(int64(d))}
}
// Load atomically loads the wrapped value.
func (d *Duration) Load() time.Duration {
return time.Duration(d.v.Load())
}
// Store atomically stores the passed value.
func (d *Duration) Store(n time.Duration) {
d.v.Store(int64(n))
}
// Add atomically adds to the wrapped time.Duration and returns the new value.
func (d *Duration) Add(n time.Duration) time.Duration {
return time.Duration(d.v.Add(int64(n)))
}
// Sub atomically subtracts from the wrapped time.Duration and returns the new value.
func (d *Duration) Sub(n time.Duration) time.Duration {
return time.Duration(d.v.Sub(int64(n)))
}
// Swap atomically swaps the wrapped time.Duration and returns the old value.
func (d *Duration) Swap(n time.Duration) time.Duration {
return time.Duration(d.v.Swap(int64(n)))
}
// CAS is an atomic compare-and-swap.
func (d *Duration) CAS(old, new time.Duration) bool {
return d.v.CAS(int64(old), int64(new))
}
// Value shadows the type of the same name from sync/atomic
// https://godoc.org/sync/atomic#Value
type Value struct{ atomic.Value }

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build/manifest/vendor/go.uber.org/atomic/glide.lock generated vendored Normal file
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hash: f14d51408e3e0e4f73b34e4039484c78059cd7fc5f4996fdd73db20dc8d24f53
updated: 2016-10-27T00:10:51.16960137-07:00
imports: []
testImports:
- name: github.com/davecgh/go-spew
version: 5215b55f46b2b919f50a1df0eaa5886afe4e3b3d
subpackages:
- spew
- name: github.com/pmezard/go-difflib
version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
subpackages:
- difflib
- name: github.com/stretchr/testify
version: d77da356e56a7428ad25149ca77381849a6a5232
subpackages:
- assert
- require

6
build/manifest/vendor/go.uber.org/atomic/glide.yaml generated vendored Normal file
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package: go.uber.org/atomic
testImport:
- package: github.com/stretchr/testify
subpackages:
- assert
- require

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build/manifest/vendor/go.uber.org/atomic/string.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package atomic
// String is an atomic type-safe wrapper around Value for strings.
type String struct{ v Value }
// NewString creates a String.
func NewString(str string) *String {
s := &String{}
if str != "" {
s.Store(str)
}
return s
}
// Load atomically loads the wrapped string.
func (s *String) Load() string {
v := s.v.Load()
if v == nil {
return ""
}
return v.(string)
}
// Store atomically stores the passed string.
// Note: Converting the string to an interface{} to store in the Value
// requires an allocation.
func (s *String) Store(str string) {
s.v.Store(str)
}

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build/manifest/vendor/go.uber.org/multierr/.codecov.yml generated vendored Normal file
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coverage:
range: 80..100
round: down
precision: 2
status:
project: # measuring the overall project coverage
default: # context, you can create multiple ones with custom titles
enabled: yes # must be yes|true to enable this status
target: 100 # specify the target coverage for each commit status
# option: "auto" (must increase from parent commit or pull request base)
# option: "X%" a static target percentage to hit
if_not_found: success # if parent is not found report status as success, error, or failure
if_ci_failed: error # if ci fails report status as success, error, or failure

1
build/manifest/vendor/go.uber.org/multierr/.gitignore generated vendored Normal file
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/vendor

33
build/manifest/vendor/go.uber.org/multierr/.travis.yml generated vendored Normal file
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sudo: false
language: go
go_import_path: go.uber.org/multierr
env:
global:
- GO15VENDOREXPERIMENT=1
go:
- 1.7
- 1.8
- tip
cache:
directories:
- vendor
before_install:
- go version
install:
- |
set -e
make install_ci
script:
- |
set -e
make lint
make test_ci
after_success:
- bash <(curl -s https://codecov.io/bash)

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build/manifest/vendor/go.uber.org/multierr/CHANGELOG.md generated vendored Normal file
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Releases
========
v1.1.0 (2017-06-30)
===================
- Added an `Errors(error) []error` function to extract the underlying list of
errors for a multierr error.
v1.0.0 (2017-05-31)
===================
No changes since v0.2.0. This release is committing to making no breaking
changes to the current API in the 1.X series.
v0.2.0 (2017-04-11)
===================
- Repeatedly appending to the same error is now faster due to fewer
allocations.
v0.1.0 (2017-31-03)
===================
- Initial release

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build/manifest/vendor/go.uber.org/multierr/LICENSE.txt generated vendored Normal file
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Copyright (c) 2017 Uber Technologies, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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build/manifest/vendor/go.uber.org/multierr/Makefile generated vendored Normal file
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export GO15VENDOREXPERIMENT=1
PACKAGES := $(shell glide nv)
GO_FILES := $(shell \
find . '(' -path '*/.*' -o -path './vendor' ')' -prune \
-o -name '*.go' -print | cut -b3-)
.PHONY: install
install:
glide --version || go get github.com/Masterminds/glide
glide install
.PHONY: build
build:
go build -i $(PACKAGES)
.PHONY: test
test:
go test -cover -race $(PACKAGES)
.PHONY: gofmt
gofmt:
$(eval FMT_LOG := $(shell mktemp -t gofmt.XXXXX))
@gofmt -e -s -l $(GO_FILES) > $(FMT_LOG) || true
@[ ! -s "$(FMT_LOG)" ] || (echo "gofmt failed:" | cat - $(FMT_LOG) && false)
.PHONY: govet
govet:
$(eval VET_LOG := $(shell mktemp -t govet.XXXXX))
@go vet $(PACKAGES) 2>&1 \
| grep -v '^exit status' > $(VET_LOG) || true
@[ ! -s "$(VET_LOG)" ] || (echo "govet failed:" | cat - $(VET_LOG) && false)
.PHONY: golint
golint:
@go get github.com/golang/lint/golint
$(eval LINT_LOG := $(shell mktemp -t golint.XXXXX))
@cat /dev/null > $(LINT_LOG)
@$(foreach pkg, $(PACKAGES), golint $(pkg) >> $(LINT_LOG) || true;)
@[ ! -s "$(LINT_LOG)" ] || (echo "golint failed:" | cat - $(LINT_LOG) && false)
.PHONY: staticcheck
staticcheck:
@go get honnef.co/go/tools/cmd/staticcheck
$(eval STATICCHECK_LOG := $(shell mktemp -t staticcheck.XXXXX))
@staticcheck $(PACKAGES) 2>&1 > $(STATICCHECK_LOG) || true
@[ ! -s "$(STATICCHECK_LOG)" ] || (echo "staticcheck failed:" | cat - $(STATICCHECK_LOG) && false)
.PHONY: lint
lint: gofmt govet golint staticcheck
.PHONY: cover
cover:
./scripts/cover.sh $(shell go list $(PACKAGES))
go tool cover -html=cover.out -o cover.html
update-license:
@go get go.uber.org/tools/update-license
@update-license \
$(shell go list -json $(PACKAGES) | \
jq -r '.Dir + "/" + (.GoFiles | .[])')
##############################################################################
.PHONY: install_ci
install_ci: install
go get github.com/wadey/gocovmerge
go get github.com/mattn/goveralls
go get golang.org/x/tools/cmd/cover
.PHONY: test_ci
test_ci: install_ci
./scripts/cover.sh $(shell go list $(PACKAGES))

23
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# multierr [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
`multierr` allows combining one or more Go `error`s together.
## Installation
go get -u go.uber.org/multierr
## Status
Stable: No breaking changes will be made before 2.0.
-------------------------------------------------------------------------------
Released under the [MIT License].
[MIT License]: LICENSE.txt
[doc-img]: https://godoc.org/go.uber.org/multierr?status.svg
[doc]: https://godoc.org/go.uber.org/multierr
[ci-img]: https://travis-ci.org/uber-go/multierr.svg?branch=master
[cov-img]: https://codecov.io/gh/uber-go/multierr/branch/master/graph/badge.svg
[ci]: https://travis-ci.org/uber-go/multierr
[cov]: https://codecov.io/gh/uber-go/multierr

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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package multierr allows combining one or more errors together.
//
// Overview
//
// Errors can be combined with the use of the Combine function.
//
// multierr.Combine(
// reader.Close(),
// writer.Close(),
// conn.Close(),
// )
//
// If only two errors are being combined, the Append function may be used
// instead.
//
// err = multierr.Combine(reader.Close(), writer.Close())
//
// This makes it possible to record resource cleanup failures from deferred
// blocks with the help of named return values.
//
// func sendRequest(req Request) (err error) {
// conn, err := openConnection()
// if err != nil {
// return err
// }
// defer func() {
// err = multierr.Append(err, conn.Close())
// }()
// // ...
// }
//
// The underlying list of errors for a returned error object may be retrieved
// with the Errors function.
//
// errors := multierr.Errors(err)
// if len(errors) > 0 {
// fmt.Println("The following errors occurred:")
// }
//
// Advanced Usage
//
// Errors returned by Combine and Append MAY implement the following
// interface.
//
// type errorGroup interface {
// // Returns a slice containing the underlying list of errors.
// //
// // This slice MUST NOT be modified by the caller.
// Errors() []error
// }
//
// Note that if you need access to list of errors behind a multierr error, you
// should prefer using the Errors function. That said, if you need cheap
// read-only access to the underlying errors slice, you can attempt to cast
// the error to this interface. You MUST handle the failure case gracefully
// because errors returned by Combine and Append are not guaranteed to
// implement this interface.
//
// var errors []error
// group, ok := err.(errorGroup)
// if ok {
// errors = group.Errors()
// } else {
// errors = []error{err}
// }
package multierr // import "go.uber.org/multierr"
import (
"bytes"
"fmt"
"io"
"strings"
"sync"
"go.uber.org/atomic"
)
var (
// Separator for single-line error messages.
_singlelineSeparator = []byte("; ")
_newline = []byte("\n")
// Prefix for multi-line messages
_multilinePrefix = []byte("the following errors occurred:")
// Prefix for the first and following lines of an item in a list of
// multi-line error messages.
//
// For example, if a single item is:
//
// foo
// bar
//
// It will become,
//
// - foo
// bar
_multilineSeparator = []byte("\n - ")
_multilineIndent = []byte(" ")
)
// _bufferPool is a pool of bytes.Buffers.
var _bufferPool = sync.Pool{
New: func() interface{} {
return &bytes.Buffer{}
},
}
type errorGroup interface {
Errors() []error
}
// Errors returns a slice containing zero or more errors that the supplied
// error is composed of. If the error is nil, the returned slice is empty.
//
// err := multierr.Append(r.Close(), w.Close())
// errors := multierr.Errors(err)
//
// If the error is not composed of other errors, the returned slice contains
// just the error that was passed in.
//
// Callers of this function are free to modify the returned slice.
func Errors(err error) []error {
if err == nil {
return nil
}
// Note that we're casting to multiError, not errorGroup. Our contract is
// that returned errors MAY implement errorGroup. Errors, however, only
// has special behavior for multierr-specific error objects.
//
// This behavior can be expanded in the future but I think it's prudent to
// start with as little as possible in terms of contract and possibility
// of misuse.
eg, ok := err.(*multiError)
if !ok {
return []error{err}
}
errors := eg.Errors()
result := make([]error, len(errors))
copy(result, errors)
return result
}
// multiError is an error that holds one or more errors.
//
// An instance of this is guaranteed to be non-empty and flattened. That is,
// none of the errors inside multiError are other multiErrors.
//
// multiError formats to a semi-colon delimited list of error messages with
// %v and with a more readable multi-line format with %+v.
type multiError struct {
copyNeeded atomic.Bool
errors []error
}
var _ errorGroup = (*multiError)(nil)
// Errors returns the list of underlying errors.
//
// This slice MUST NOT be modified.
func (merr *multiError) Errors() []error {
if merr == nil {
return nil
}
return merr.errors
}
func (merr *multiError) Error() string {
if merr == nil {
return ""
}
buff := _bufferPool.Get().(*bytes.Buffer)
buff.Reset()
merr.writeSingleline(buff)
result := buff.String()
_bufferPool.Put(buff)
return result
}
func (merr *multiError) Format(f fmt.State, c rune) {
if c == 'v' && f.Flag('+') {
merr.writeMultiline(f)
} else {
merr.writeSingleline(f)
}
}
func (merr *multiError) writeSingleline(w io.Writer) {
first := true
for _, item := range merr.errors {
if first {
first = false
} else {
w.Write(_singlelineSeparator)
}
io.WriteString(w, item.Error())
}
}
func (merr *multiError) writeMultiline(w io.Writer) {
w.Write(_multilinePrefix)
for _, item := range merr.errors {
w.Write(_multilineSeparator)
writePrefixLine(w, _multilineIndent, fmt.Sprintf("%+v", item))
}
}
// Writes s to the writer with the given prefix added before each line after
// the first.
func writePrefixLine(w io.Writer, prefix []byte, s string) {
first := true
for len(s) > 0 {
if first {
first = false
} else {
w.Write(prefix)
}
idx := strings.IndexByte(s, '\n')
if idx < 0 {
idx = len(s) - 1
}
io.WriteString(w, s[:idx+1])
s = s[idx+1:]
}
}
type inspectResult struct {
// Number of top-level non-nil errors
Count int
// Total number of errors including multiErrors
Capacity int
// Index of the first non-nil error in the list. Value is meaningless if
// Count is zero.
FirstErrorIdx int
// Whether the list contains at least one multiError
ContainsMultiError bool
}
// Inspects the given slice of errors so that we can efficiently allocate
// space for it.
func inspect(errors []error) (res inspectResult) {
first := true
for i, err := range errors {
if err == nil {
continue
}
res.Count++
if first {
first = false
res.FirstErrorIdx = i
}
if merr, ok := err.(*multiError); ok {
res.Capacity += len(merr.errors)
res.ContainsMultiError = true
} else {
res.Capacity++
}
}
return
}
// fromSlice converts the given list of errors into a single error.
func fromSlice(errors []error) error {
res := inspect(errors)
switch res.Count {
case 0:
return nil
case 1:
// only one non-nil entry
return errors[res.FirstErrorIdx]
case len(errors):
if !res.ContainsMultiError {
// already flat
return &multiError{errors: errors}
}
}
nonNilErrs := make([]error, 0, res.Capacity)
for _, err := range errors[res.FirstErrorIdx:] {
if err == nil {
continue
}
if nested, ok := err.(*multiError); ok {
nonNilErrs = append(nonNilErrs, nested.errors...)
} else {
nonNilErrs = append(nonNilErrs, err)
}
}
return &multiError{errors: nonNilErrs}
}
// Combine combines the passed errors into a single error.
//
// If zero arguments were passed or if all items are nil, a nil error is
// returned.
//
// Combine(nil, nil) // == nil
//
// If only a single error was passed, it is returned as-is.
//
// Combine(err) // == err
//
// Combine skips over nil arguments so this function may be used to combine
// together errors from operations that fail independently of each other.
//
// multierr.Combine(
// reader.Close(),
// writer.Close(),
// pipe.Close(),
// )
//
// If any of the passed errors is a multierr error, it will be flattened along
// with the other errors.
//
// multierr.Combine(multierr.Combine(err1, err2), err3)
// // is the same as
// multierr.Combine(err1, err2, err3)
//
// The returned error formats into a readable multi-line error message if
// formatted with %+v.
//
// fmt.Sprintf("%+v", multierr.Combine(err1, err2))
func Combine(errors ...error) error {
return fromSlice(errors)
}
// Append appends the given errors together. Either value may be nil.
//
// This function is a specialization of Combine for the common case where
// there are only two errors.
//
// err = multierr.Append(reader.Close(), writer.Close())
//
// The following pattern may also be used to record failure of deferred
// operations without losing information about the original error.
//
// func doSomething(..) (err error) {
// f := acquireResource()
// defer func() {
// err = multierr.Append(err, f.Close())
// }()
func Append(left error, right error) error {
switch {
case left == nil:
return right
case right == nil:
return left
}
if _, ok := right.(*multiError); !ok {
if l, ok := left.(*multiError); ok && !l.copyNeeded.Swap(true) {
// Common case where the error on the left is constantly being
// appended to.
errs := append(l.errors, right)
return &multiError{errors: errs}
} else if !ok {
// Both errors are single errors.
return &multiError{errors: []error{left, right}}
}
}
// Either right or both, left and right, are multiErrors. Rely on usual
// expensive logic.
errors := [2]error{left, right}
return fromSlice(errors[0:])
}

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hash: b53b5e9a84b9cb3cc4b2d0499e23da2feca1eec318ce9bb717ecf35bf24bf221
updated: 2017-04-10T13:34:45.671678062-07:00
imports:
- name: go.uber.org/atomic
version: 3b8db5e93c4c02efbc313e17b2e796b0914a01fb
testImports:
- name: github.com/davecgh/go-spew
version: 6d212800a42e8ab5c146b8ace3490ee17e5225f9
subpackages:
- spew
- name: github.com/pmezard/go-difflib
version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
subpackages:
- difflib
- name: github.com/stretchr/testify
version: 69483b4bd14f5845b5a1e55bca19e954e827f1d0
subpackages:
- assert
- require

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package: go.uber.org/multierr
import:
- package: go.uber.org/atomic
version: ^1
testImport:
- package: github.com/stretchr/testify
subpackages:
- assert

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coverage:
range: 80..100
round: down
precision: 2
status:
project: # measuring the overall project coverage
default: # context, you can create multiple ones with custom titles
enabled: yes # must be yes|true to enable this status
target: 95% # specify the target coverage for each commit status
# option: "auto" (must increase from parent commit or pull request base)
# option: "X%" a static target percentage to hit
if_not_found: success # if parent is not found report status as success, error, or failure
if_ci_failed: error # if ci fails report status as success, error, or failure
ignore:
- internal/readme/readme.go

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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
vendor
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test
*.prof
*.pprof
*.out
*.log

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# :zap: zap [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
Blazing fast, structured, leveled logging in Go.
## Installation
`go get -u go.uber.org/zap`
Note that zap only supports the two most recent minor versions of Go.
## Quick Start
In contexts where performance is nice, but not critical, use the
`SugaredLogger`. It's 4-10x faster than other structured logging
packages and includes both structured and `printf`-style APIs.
```go
logger, _ := zap.NewProduction()
defer logger.Sync() // flushes buffer, if any
sugar := logger.Sugar()
sugar.Infow("failed to fetch URL",
// Structured context as loosely typed key-value pairs.
"url", url,
"attempt", 3,
"backoff", time.Second,
)
sugar.Infof("Failed to fetch URL: %s", url)
```
When performance and type safety are critical, use the `Logger`. It's even
faster than the `SugaredLogger` and allocates far less, but it only supports
structured logging.
```go
logger, _ := zap.NewProduction()
defer logger.Sync()
logger.Info("failed to fetch URL",
// Structured context as strongly typed Field values.
zap.String("url", url),
zap.Int("attempt", 3),
zap.Duration("backoff", time.Second),
)
```
See the [documentation][doc] and [FAQ](FAQ.md) for more details.
## Performance
For applications that log in the hot path, reflection-based serialization and
string formatting are prohibitively expensive &mdash; they're CPU-intensive
and make many small allocations. Put differently, using `encoding/json` and
`fmt.Fprintf` to log tons of `interface{}`s makes your application slow.
Zap takes a different approach. It includes a reflection-free, zero-allocation
JSON encoder, and the base `Logger` strives to avoid serialization overhead
and allocations wherever possible. By building the high-level `SugaredLogger`
on that foundation, zap lets users *choose* when they need to count every
allocation and when they'd prefer a more familiar, loosely typed API.
As measured by its own [benchmarking suite][], not only is zap more performant
than comparable structured logging packages &mdash; it's also faster than the
standard library. Like all benchmarks, take these with a grain of salt.<sup
id="anchor-versions">[1](#footnote-versions)</sup>
Log a message and 10 fields:
{{.BenchmarkAddingFields}}
Log a message with a logger that already has 10 fields of context:
{{.BenchmarkAccumulatedContext}}
Log a static string, without any context or `printf`-style templating:
{{.BenchmarkWithoutFields}}
## Development Status: Stable
All APIs are finalized, and no breaking changes will be made in the 1.x series
of releases. Users of semver-aware dependency management systems should pin
zap to `^1`.
## Contributing
We encourage and support an active, healthy community of contributors &mdash;
including you! Details are in the [contribution guide](CONTRIBUTING.md) and
the [code of conduct](CODE_OF_CONDUCT.md). The zap maintainers keep an eye on
issues and pull requests, but you can also report any negative conduct to
oss-conduct@uber.com. That email list is a private, safe space; even the zap
maintainers don't have access, so don't hesitate to hold us to a high
standard.
<hr>
Released under the [MIT License](LICENSE.txt).
<sup id="footnote-versions">1</sup> In particular, keep in mind that we may be
benchmarking against slightly older versions of other packages. Versions are
pinned in zap's [glide.lock][] file. [↩](#anchor-versions)
[doc-img]: https://godoc.org/go.uber.org/zap?status.svg
[doc]: https://godoc.org/go.uber.org/zap
[ci-img]: https://travis-ci.org/uber-go/zap.svg?branch=master
[ci]: https://travis-ci.org/uber-go/zap
[cov-img]: https://codecov.io/gh/uber-go/zap/branch/master/graph/badge.svg
[cov]: https://codecov.io/gh/uber-go/zap
[benchmarking suite]: https://github.com/uber-go/zap/tree/master/benchmarks
[glide.lock]: https://github.com/uber-go/zap/blob/master/glide.lock

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language: go
sudo: false
go:
- 1.9.x
- 1.10.x
go_import_path: go.uber.org/zap
env:
global:
- TEST_TIMEOUT_SCALE=10
cache:
directories:
- vendor
install:
- make dependencies
script:
- make lint
- make test
- make bench
after_success:
- make cover
- bash <(curl -s https://codecov.io/bash)

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# Changelog
## v1.9.0 (19 Jul 2018)
Enhancements:
* [#602][]: Reduce number of allocations when logging with reflection.
* [#572][], [#606][]: Expose a registry for third-party logging sinks.
Thanks to @nfarah86, @AlekSi, @JeanMertz, @phillippgille, @etsangsplk, and
@dimroc for their contributions to this release.
## v1.8.0 (13 Apr 2018)
Enhancements:
* [#508][]: Make log level configurable when redirecting the standard
library's logger.
* [#518][]: Add a logger that writes to a `*testing.TB`.
* [#577][]: Add a top-level alias for `zapcore.Field` to clean up GoDoc.
Bugfixes:
* [#574][]: Add a missing import comment to `go.uber.org/zap/buffer`.
Thanks to @DiSiqueira and @djui for their contributions to this release.
## v1.7.1 (25 Sep 2017)
Bugfixes:
* [#504][]: Store strings when using AddByteString with the map encoder.
## v1.7.0 (21 Sep 2017)
Enhancements:
* [#487][]: Add `NewStdLogAt`, which extends `NewStdLog` by allowing the user
to specify the level of the logged messages.
## v1.6.0 (30 Aug 2017)
Enhancements:
* [#491][]: Omit zap stack frames from stacktraces.
* [#490][]: Add a `ContextMap` method to observer logs for simpler
field validation in tests.
## v1.5.0 (22 Jul 2017)
Enhancements:
* [#460][] and [#470][]: Support errors produced by `go.uber.org/multierr`.
* [#465][]: Support user-supplied encoders for logger names.
Bugfixes:
* [#477][]: Fix a bug that incorrectly truncated deep stacktraces.
Thanks to @richard-tunein and @pavius for their contributions to this release.
## v1.4.1 (08 Jun 2017)
This release fixes two bugs.
Bugfixes:
* [#435][]: Support a variety of case conventions when unmarshaling levels.
* [#444][]: Fix a panic in the observer.
## v1.4.0 (12 May 2017)
This release adds a few small features and is fully backward-compatible.
Enhancements:
* [#424][]: Add a `LineEnding` field to `EncoderConfig`, allowing users to
override the Unix-style default.
* [#425][]: Preserve time zones when logging times.
* [#431][]: Make `zap.AtomicLevel` implement `fmt.Stringer`, which makes a
variety of operations a bit simpler.
## v1.3.0 (25 Apr 2017)
This release adds an enhancement to zap's testing helpers as well as the
ability to marshal an AtomicLevel. It is fully backward-compatible.
Enhancements:
* [#415][]: Add a substring-filtering helper to zap's observer. This is
particularly useful when testing the `SugaredLogger`.
* [#416][]: Make `AtomicLevel` implement `encoding.TextMarshaler`.
## v1.2.0 (13 Apr 2017)
This release adds a gRPC compatibility wrapper. It is fully backward-compatible.
Enhancements:
* [#402][]: Add a `zapgrpc` package that wraps zap's Logger and implements
`grpclog.Logger`.
## v1.1.0 (31 Mar 2017)
This release fixes two bugs and adds some enhancements to zap's testing helpers.
It is fully backward-compatible.
Bugfixes:
* [#385][]: Fix caller path trimming on Windows.
* [#396][]: Fix a panic when attempting to use non-existent directories with
zap's configuration struct.
Enhancements:
* [#386][]: Add filtering helpers to zaptest's observing logger.
Thanks to @moitias for contributing to this release.
## v1.0.0 (14 Mar 2017)
This is zap's first stable release. All exported APIs are now final, and no
further breaking changes will be made in the 1.x release series. Anyone using a
semver-aware dependency manager should now pin to `^1`.
Breaking changes:
* [#366][]: Add byte-oriented APIs to encoders to log UTF-8 encoded text without
casting from `[]byte` to `string`.
* [#364][]: To support buffering outputs, add `Sync` methods to `zapcore.Core`,
`zap.Logger`, and `zap.SugaredLogger`.
* [#371][]: Rename the `testutils` package to `zaptest`, which is less likely to
clash with other testing helpers.
Bugfixes:
* [#362][]: Make the ISO8601 time formatters fixed-width, which is friendlier
for tab-separated console output.
* [#369][]: Remove the automatic locks in `zapcore.NewCore`, which allows zap to
work with concurrency-safe `WriteSyncer` implementations.
* [#347][]: Stop reporting errors when trying to `fsync` standard out on Linux
systems.
* [#373][]: Report the correct caller from zap's standard library
interoperability wrappers.
Enhancements:
* [#348][]: Add a registry allowing third-party encodings to work with zap's
built-in `Config`.
* [#327][]: Make the representation of logger callers configurable (like times,
levels, and durations).
* [#376][]: Allow third-party encoders to use their own buffer pools, which
removes the last performance advantage that zap's encoders have over plugins.
* [#346][]: Add `CombineWriteSyncers`, a convenience function to tee multiple
`WriteSyncer`s and lock the result.
* [#365][]: Make zap's stacktraces compatible with mid-stack inlining (coming in
Go 1.9).
* [#372][]: Export zap's observing logger as `zaptest/observer`. This makes it
easier for particularly punctilious users to unit test their application's
logging.
Thanks to @suyash, @htrendev, @flisky, @Ulexus, and @skipor for their
contributions to this release.
## v1.0.0-rc.3 (7 Mar 2017)
This is the third release candidate for zap's stable release. There are no
breaking changes.
Bugfixes:
* [#339][]: Byte slices passed to `zap.Any` are now correctly treated as binary blobs
rather than `[]uint8`.
Enhancements:
* [#307][]: Users can opt into colored output for log levels.
* [#353][]: In addition to hijacking the output of the standard library's
package-global logging functions, users can now construct a zap-backed
`log.Logger` instance.
* [#311][]: Frames from common runtime functions and some of zap's internal
machinery are now omitted from stacktraces.
Thanks to @ansel1 and @suyash for their contributions to this release.
## v1.0.0-rc.2 (21 Feb 2017)
This is the second release candidate for zap's stable release. It includes two
breaking changes.
Breaking changes:
* [#316][]: Zap's global loggers are now fully concurrency-safe
(previously, users had to ensure that `ReplaceGlobals` was called before the
loggers were in use). However, they must now be accessed via the `L()` and
`S()` functions. Users can update their projects with
```
gofmt -r "zap.L -> zap.L()" -w .
gofmt -r "zap.S -> zap.S()" -w .
```
* [#309][] and [#317][]: RC1 was mistakenly shipped with invalid
JSON and YAML struct tags on all config structs. This release fixes the tags
and adds static analysis to prevent similar bugs in the future.
Bugfixes:
* [#321][]: Redirecting the standard library's `log` output now
correctly reports the logger's caller.
Enhancements:
* [#325][] and [#333][]: Zap now transparently supports non-standard, rich
errors like those produced by `github.com/pkg/errors`.
* [#326][]: Though `New(nil)` continues to return a no-op logger, `NewNop()` is
now preferred. Users can update their projects with `gofmt -r 'zap.New(nil) ->
zap.NewNop()' -w .`.
* [#300][]: Incorrectly importing zap as `github.com/uber-go/zap` now returns a
more informative error.
Thanks to @skipor and @chapsuk for their contributions to this release.
## v1.0.0-rc.1 (14 Feb 2017)
This is the first release candidate for zap's stable release. There are multiple
breaking changes and improvements from the pre-release version. Most notably:
* **Zap's import path is now "go.uber.org/zap"** &mdash; all users will
need to update their code.
* User-facing types and functions remain in the `zap` package. Code relevant
largely to extension authors is now in the `zapcore` package.
* The `zapcore.Core` type makes it easy for third-party packages to use zap's
internals but provide a different user-facing API.
* `Logger` is now a concrete type instead of an interface.
* A less verbose (though slower) logging API is included by default.
* Package-global loggers `L` and `S` are included.
* A human-friendly console encoder is included.
* A declarative config struct allows common logger configurations to be managed
as configuration instead of code.
* Sampling is more accurate, and doesn't depend on the standard library's shared
timer heap.
## v0.1.0-beta.1 (6 Feb 2017)
This is a minor version, tagged to allow users to pin to the pre-1.0 APIs and
upgrade at their leisure. Since this is the first tagged release, there are no
backward compatibility concerns and all functionality is new.
Early zap adopters should pin to the 0.1.x minor version until they're ready to
upgrade to the upcoming stable release.
[#316]: https://github.com/uber-go/zap/pull/316
[#309]: https://github.com/uber-go/zap/pull/309
[#317]: https://github.com/uber-go/zap/pull/317
[#321]: https://github.com/uber-go/zap/pull/321
[#325]: https://github.com/uber-go/zap/pull/325
[#333]: https://github.com/uber-go/zap/pull/333
[#326]: https://github.com/uber-go/zap/pull/326
[#300]: https://github.com/uber-go/zap/pull/300
[#339]: https://github.com/uber-go/zap/pull/339
[#307]: https://github.com/uber-go/zap/pull/307
[#353]: https://github.com/uber-go/zap/pull/353
[#311]: https://github.com/uber-go/zap/pull/311
[#366]: https://github.com/uber-go/zap/pull/366
[#364]: https://github.com/uber-go/zap/pull/364
[#371]: https://github.com/uber-go/zap/pull/371
[#362]: https://github.com/uber-go/zap/pull/362
[#369]: https://github.com/uber-go/zap/pull/369
[#347]: https://github.com/uber-go/zap/pull/347
[#373]: https://github.com/uber-go/zap/pull/373
[#348]: https://github.com/uber-go/zap/pull/348
[#327]: https://github.com/uber-go/zap/pull/327
[#376]: https://github.com/uber-go/zap/pull/376
[#346]: https://github.com/uber-go/zap/pull/346
[#365]: https://github.com/uber-go/zap/pull/365
[#372]: https://github.com/uber-go/zap/pull/372
[#385]: https://github.com/uber-go/zap/pull/385
[#396]: https://github.com/uber-go/zap/pull/396
[#386]: https://github.com/uber-go/zap/pull/386
[#402]: https://github.com/uber-go/zap/pull/402
[#415]: https://github.com/uber-go/zap/pull/415
[#416]: https://github.com/uber-go/zap/pull/416
[#424]: https://github.com/uber-go/zap/pull/424
[#425]: https://github.com/uber-go/zap/pull/425
[#431]: https://github.com/uber-go/zap/pull/431
[#435]: https://github.com/uber-go/zap/pull/435
[#444]: https://github.com/uber-go/zap/pull/444
[#477]: https://github.com/uber-go/zap/pull/477
[#465]: https://github.com/uber-go/zap/pull/465
[#460]: https://github.com/uber-go/zap/pull/460
[#470]: https://github.com/uber-go/zap/pull/470
[#487]: https://github.com/uber-go/zap/pull/487
[#490]: https://github.com/uber-go/zap/pull/490
[#491]: https://github.com/uber-go/zap/pull/491
[#504]: https://github.com/uber-go/zap/pull/504
[#508]: https://github.com/uber-go/zap/pull/508
[#518]: https://github.com/uber-go/zap/pull/518
[#577]: https://github.com/uber-go/zap/pull/577
[#574]: https://github.com/uber-go/zap/pull/574
[#602]: https://github.com/uber-go/zap/pull/602
[#572]: https://github.com/uber-go/zap/pull/572
[#606]: https://github.com/uber-go/zap/pull/606

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# Contributor Covenant Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age,
body size, disability, ethnicity, gender identity and expression, level of
experience, nationality, personal appearance, race, religion, or sexual
identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment
include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or
reject comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct, or to ban temporarily or
permanently any contributor for other behaviors that they deem inappropriate,
threatening, offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community. Examples of
representing a project or community include using an official project e-mail
address, posting via an official social media account, or acting as an
appointed representative at an online or offline event. Representation of a
project may be further defined and clarified by project maintainers.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported by contacting the project team at oss-conduct@uber.com. The project
team will review and investigate all complaints, and will respond in a way
that it deems appropriate to the circumstances. The project team is obligated
to maintain confidentiality with regard to the reporter of an incident.
Further details of specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good
faith may face temporary or permanent repercussions as determined by other
members of the project's leadership.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 1.4, available at
[http://contributor-covenant.org/version/1/4][version].
[homepage]: http://contributor-covenant.org
[version]: http://contributor-covenant.org/version/1/4/

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# Contributing
We'd love your help making zap the very best structured logging library in Go!
If you'd like to add new exported APIs, please [open an issue][open-issue]
describing your proposal &mdash; discussing API changes ahead of time makes
pull request review much smoother. In your issue, pull request, and any other
communications, please remember to treat your fellow contributors with
respect! We take our [code of conduct](CODE_OF_CONDUCT.md) seriously.
Note that you'll need to sign [Uber's Contributor License Agreement][cla]
before we can accept any of your contributions. If necessary, a bot will remind
you to accept the CLA when you open your pull request.
## Setup
[Fork][fork], then clone the repository:
```
mkdir -p $GOPATH/src/go.uber.org
cd $GOPATH/src/go.uber.org
git clone git@github.com:your_github_username/zap.git
cd zap
git remote add upstream https://github.com/uber-go/zap.git
git fetch upstream
```
Install zap's dependencies:
```
make dependencies
```
Make sure that the tests and the linters pass:
```
make test
make lint
```
If you're not using the minor version of Go specified in the Makefile's
`LINTABLE_MINOR_VERSIONS` variable, `make lint` doesn't do anything. This is
fine, but it means that you'll only discover lint failures after you open your
pull request.
## Making Changes
Start by creating a new branch for your changes:
```
cd $GOPATH/src/go.uber.org/zap
git checkout master
git fetch upstream
git rebase upstream/master
git checkout -b cool_new_feature
```
Make your changes, then ensure that `make lint` and `make test` still pass. If
you're satisfied with your changes, push them to your fork.
```
git push origin cool_new_feature
```
Then use the GitHub UI to open a pull request.
At this point, you're waiting on us to review your changes. We *try* to respond
to issues and pull requests within a few business days, and we may suggest some
improvements or alternatives. Once your changes are approved, one of the
project maintainers will merge them.
We're much more likely to approve your changes if you:
* Add tests for new functionality.
* Write a [good commit message][commit-message].
* Maintain backward compatibility.
[fork]: https://github.com/uber-go/zap/fork
[open-issue]: https://github.com/uber-go/zap/issues/new
[cla]: https://cla-assistant.io/uber-go/zap
[commit-message]: http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html

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# Frequently Asked Questions
## Design
### Why spend so much effort on logger performance?
Of course, most applications won't notice the impact of a slow logger: they
already take tens or hundreds of milliseconds for each operation, so an extra
millisecond doesn't matter.
On the other hand, why *not* make structured logging fast? The `SugaredLogger`
isn't any harder to use than other logging packages, and the `Logger` makes
structured logging possible in performance-sensitive contexts. Across a fleet
of Go microservices, making each application even slightly more efficient adds
up quickly.
### Why aren't `Logger` and `SugaredLogger` interfaces?
Unlike the familiar `io.Writer` and `http.Handler`, `Logger` and
`SugaredLogger` interfaces would include *many* methods. As [Rob Pike points
out][go-proverbs], "The bigger the interface, the weaker the abstraction."
Interfaces are also rigid &mdash; *any* change requires releasing a new major
version, since it breaks all third-party implementations.
Making the `Logger` and `SugaredLogger` concrete types doesn't sacrifice much
abstraction, and it lets us add methods without introducing breaking changes.
Your applications should define and depend upon an interface that includes
just the methods you use.
### Why sample application logs?
Applications often experience runs of errors, either because of a bug or
because of a misbehaving user. Logging errors is usually a good idea, but it
can easily make this bad situation worse: not only is your application coping
with a flood of errors, it's also spending extra CPU cycles and I/O logging
those errors. Since writes are typically serialized, logging limits throughput
when you need it most.
Sampling fixes this problem by dropping repetitive log entries. Under normal
conditions, your application writes out every entry. When similar entries are
logged hundreds or thousands of times each second, though, zap begins dropping
duplicates to preserve throughput.
### Why do the structured logging APIs take a message in addition to fields?
Subjectively, we find it helpful to accompany structured context with a brief
description. This isn't critical during development, but it makes debugging
and operating unfamiliar systems much easier.
More concretely, zap's sampling algorithm uses the message to identify
duplicate entries. In our experience, this is a practical middle ground
between random sampling (which often drops the exact entry that you need while
debugging) and hashing the complete entry (which is prohibitively expensive).
### Why include package-global loggers?
Since so many other logging packages include a global logger, many
applications aren't designed to accept loggers as explicit parameters.
Changing function signatures is often a breaking change, so zap includes
global loggers to simplify migration.
Avoid them where possible.
### Why include dedicated Panic and Fatal log levels?
In general, application code should handle errors gracefully instead of using
`panic` or `os.Exit`. However, every rule has exceptions, and it's common to
crash when an error is truly unrecoverable. To avoid losing any information
&mdash; especially the reason for the crash &mdash; the logger must flush any
buffered entries before the process exits.
Zap makes this easy by offering `Panic` and `Fatal` logging methods that
automatically flush before exiting. Of course, this doesn't guarantee that
logs will never be lost, but it eliminates a common error.
See the discussion in uber-go/zap#207 for more details.
### What's `DPanic`?
`DPanic` stands for "panic in development." In development, it logs at
`PanicLevel`; otherwise, it logs at `ErrorLevel`. `DPanic` makes it easier to
catch errors that are theoretically possible, but shouldn't actually happen,
*without* crashing in production.
If you've ever written code like this, you need `DPanic`:
```go
if err != nil {
panic(fmt.Sprintf("shouldn't ever get here: %v", err))
}
```
## Installation
### What does the error `expects import "go.uber.org/zap"` mean?
Either zap was installed incorrectly or you're referencing the wrong package
name in your code.
Zap's source code happens to be hosted on GitHub, but the [import
path][import-path] is `go.uber.org/zap`. This gives us, the project
maintainers, the freedom to move the source code if necessary. However, it
means that you need to take a little care when installing and using the
package.
If you follow two simple rules, everything should work: install zap with `go
get -u go.uber.org/zap`, and always import it in your code with `import
"go.uber.org/zap"`. Your code shouldn't contain *any* references to
`github.com/uber-go/zap`.
## Usage
### Does zap support log rotation?
Zap doesn't natively support rotating log files, since we prefer to leave this
to an external program like `logrotate`.
However, it's easy to integrate a log rotation package like
[`gopkg.in/natefinch/lumberjack.v2`][lumberjack] as a `zapcore.WriteSyncer`.
```go
// lumberjack.Logger is already safe for concurrent use, so we don't need to
// lock it.
w := zapcore.AddSync(&lumberjack.Logger{
Filename: "/var/log/myapp/foo.log",
MaxSize: 500, // megabytes
MaxBackups: 3,
MaxAge: 28, // days
})
core := zapcore.NewCore(
zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()),
w,
zap.InfoLevel,
)
logger := zap.New(core)
```
## Extensions
We'd love to support every logging need within zap itself, but we're only
familiar with a handful of log ingestion systems, flag-parsing packages, and
the like. Rather than merging code that we can't effectively debug and
support, we'd rather grow an ecosystem of zap extensions.
We're aware of the following extensions, but haven't used them ourselves:
| Package | Integration |
| --- | --- |
| `github.com/tchap/zapext` | Sentry, syslog |
| `github.com/fgrosse/zaptest` | Ginkgo |
| `github.com/blendle/zapdriver` | Stackdriver |
[go-proverbs]: https://go-proverbs.github.io/
[import-path]: https://golang.org/cmd/go/#hdr-Remote_import_paths
[lumberjack]: https://godoc.org/gopkg.in/natefinch/lumberjack.v2

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Copyright (c) 2016-2017 Uber Technologies, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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export GO15VENDOREXPERIMENT=1
BENCH_FLAGS ?= -cpuprofile=cpu.pprof -memprofile=mem.pprof -benchmem
PKGS ?= $(shell glide novendor)
# Many Go tools take file globs or directories as arguments instead of packages.
PKG_FILES ?= *.go zapcore benchmarks buffer zapgrpc zaptest zaptest/observer internal/bufferpool internal/exit internal/color internal/ztest
# The linting tools evolve with each Go version, so run them only on the latest
# stable release.
GO_VERSION := $(shell go version | cut -d " " -f 3)
GO_MINOR_VERSION := $(word 2,$(subst ., ,$(GO_VERSION)))
LINTABLE_MINOR_VERSIONS := 10
ifneq ($(filter $(LINTABLE_MINOR_VERSIONS),$(GO_MINOR_VERSION)),)
SHOULD_LINT := true
endif
.PHONY: all
all: lint test
.PHONY: dependencies
dependencies:
@echo "Installing Glide and locked dependencies..."
glide --version || go get -u -f github.com/Masterminds/glide
glide install
@echo "Installing test dependencies..."
go install ./vendor/github.com/axw/gocov/gocov
go install ./vendor/github.com/mattn/goveralls
ifdef SHOULD_LINT
@echo "Installing golint..."
go install ./vendor/github.com/golang/lint/golint
else
@echo "Not installing golint, since we don't expect to lint on" $(GO_VERSION)
endif
# Disable printf-like invocation checking due to testify.assert.Error()
VET_RULES := -printf=false
.PHONY: lint
lint:
ifdef SHOULD_LINT
@rm -rf lint.log
@echo "Checking formatting..."
@gofmt -d -s $(PKG_FILES) 2>&1 | tee lint.log
@echo "Installing test dependencies for vet..."
@go test -i $(PKGS)
@echo "Checking vet..."
@$(foreach dir,$(PKG_FILES),go tool vet $(VET_RULES) $(dir) 2>&1 | tee -a lint.log;)
@echo "Checking lint..."
@$(foreach dir,$(PKGS),golint $(dir) 2>&1 | tee -a lint.log;)
@echo "Checking for unresolved FIXMEs..."
@git grep -i fixme | grep -v -e vendor -e Makefile | tee -a lint.log
@echo "Checking for license headers..."
@./check_license.sh | tee -a lint.log
@[ ! -s lint.log ]
else
@echo "Skipping linters on" $(GO_VERSION)
endif
.PHONY: test
test:
go test -race $(PKGS)
.PHONY: cover
cover:
./scripts/cover.sh $(PKGS)
.PHONY: bench
BENCH ?= .
bench:
@$(foreach pkg,$(PKGS),go test -bench=$(BENCH) -run="^$$" $(BENCH_FLAGS) $(pkg);)
.PHONY: updatereadme
updatereadme:
rm -f README.md
cat .readme.tmpl | go run internal/readme/readme.go > README.md

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# :zap: zap [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
Blazing fast, structured, leveled logging in Go.
## Installation
`go get -u go.uber.org/zap`
Note that zap only supports the two most recent minor versions of Go.
## Quick Start
In contexts where performance is nice, but not critical, use the
`SugaredLogger`. It's 4-10x faster than other structured logging
packages and includes both structured and `printf`-style APIs.
```go
logger, _ := zap.NewProduction()
defer logger.Sync() // flushes buffer, if any
sugar := logger.Sugar()
sugar.Infow("failed to fetch URL",
// Structured context as loosely typed key-value pairs.
"url", url,
"attempt", 3,
"backoff", time.Second,
)
sugar.Infof("Failed to fetch URL: %s", url)
```
When performance and type safety are critical, use the `Logger`. It's even
faster than the `SugaredLogger` and allocates far less, but it only supports
structured logging.
```go
logger, _ := zap.NewProduction()
defer logger.Sync()
logger.Info("failed to fetch URL",
// Structured context as strongly typed Field values.
zap.String("url", url),
zap.Int("attempt", 3),
zap.Duration("backoff", time.Second),
)
```
See the [documentation][doc] and [FAQ](FAQ.md) for more details.
## Performance
For applications that log in the hot path, reflection-based serialization and
string formatting are prohibitively expensive &mdash; they're CPU-intensive
and make many small allocations. Put differently, using `encoding/json` and
`fmt.Fprintf` to log tons of `interface{}`s makes your application slow.
Zap takes a different approach. It includes a reflection-free, zero-allocation
JSON encoder, and the base `Logger` strives to avoid serialization overhead
and allocations wherever possible. By building the high-level `SugaredLogger`
on that foundation, zap lets users *choose* when they need to count every
allocation and when they'd prefer a more familiar, loosely typed API.
As measured by its own [benchmarking suite][], not only is zap more performant
than comparable structured logging packages &mdash; it's also faster than the
standard library. Like all benchmarks, take these with a grain of salt.<sup
id="anchor-versions">[1](#footnote-versions)</sup>
Log a message and 10 fields:
| Package | Time | Objects Allocated |
| :--- | :---: | :---: |
| :zap: zap | 3131 ns/op | 5 allocs/op |
| :zap: zap (sugared) | 4173 ns/op | 21 allocs/op |
| zerolog | 16154 ns/op | 90 allocs/op |
| lion | 16341 ns/op | 111 allocs/op |
| go-kit | 17049 ns/op | 126 allocs/op |
| logrus | 23662 ns/op | 142 allocs/op |
| log15 | 36351 ns/op | 149 allocs/op |
| apex/log | 42530 ns/op | 126 allocs/op |
Log a message with a logger that already has 10 fields of context:
| Package | Time | Objects Allocated |
| :--- | :---: | :---: |
| :zap: zap | 380 ns/op | 0 allocs/op |
| :zap: zap (sugared) | 564 ns/op | 2 allocs/op |
| zerolog | 321 ns/op | 0 allocs/op |
| lion | 7092 ns/op | 39 allocs/op |
| go-kit | 20226 ns/op | 115 allocs/op |
| logrus | 22312 ns/op | 130 allocs/op |
| log15 | 28788 ns/op | 79 allocs/op |
| apex/log | 42063 ns/op | 115 allocs/op |
Log a static string, without any context or `printf`-style templating:
| Package | Time | Objects Allocated |
| :--- | :---: | :---: |
| :zap: zap | 361 ns/op | 0 allocs/op |
| :zap: zap (sugared) | 534 ns/op | 2 allocs/op |
| zerolog | 323 ns/op | 0 allocs/op |
| standard library | 575 ns/op | 2 allocs/op |
| go-kit | 922 ns/op | 13 allocs/op |
| lion | 1413 ns/op | 10 allocs/op |
| logrus | 2291 ns/op | 27 allocs/op |
| apex/log | 3690 ns/op | 11 allocs/op |
| log15 | 5954 ns/op | 26 allocs/op |
## Development Status: Stable
All APIs are finalized, and no breaking changes will be made in the 1.x series
of releases. Users of semver-aware dependency management systems should pin
zap to `^1`.
## Contributing
We encourage and support an active, healthy community of contributors &mdash;
including you! Details are in the [contribution guide](CONTRIBUTING.md) and
the [code of conduct](CODE_OF_CONDUCT.md). The zap maintainers keep an eye on
issues and pull requests, but you can also report any negative conduct to
oss-conduct@uber.com. That email list is a private, safe space; even the zap
maintainers don't have access, so don't hesitate to hold us to a high
standard.
<hr>
Released under the [MIT License](LICENSE.txt).
<sup id="footnote-versions">1</sup> In particular, keep in mind that we may be
benchmarking against slightly older versions of other packages. Versions are
pinned in zap's [glide.lock][] file. [↩](#anchor-versions)
[doc-img]: https://godoc.org/go.uber.org/zap?status.svg
[doc]: https://godoc.org/go.uber.org/zap
[ci-img]: https://travis-ci.org/uber-go/zap.svg?branch=master
[ci]: https://travis-ci.org/uber-go/zap
[cov-img]: https://codecov.io/gh/uber-go/zap/branch/master/graph/badge.svg
[cov]: https://codecov.io/gh/uber-go/zap
[benchmarking suite]: https://github.com/uber-go/zap/tree/master/benchmarks
[glide.lock]: https://github.com/uber-go/zap/blob/master/glide.lock

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"time"
"go.uber.org/zap/zapcore"
)
// Array constructs a field with the given key and ArrayMarshaler. It provides
// a flexible, but still type-safe and efficient, way to add array-like types
// to the logging context. The struct's MarshalLogArray method is called lazily.
func Array(key string, val zapcore.ArrayMarshaler) Field {
return Field{Key: key, Type: zapcore.ArrayMarshalerType, Interface: val}
}
// Bools constructs a field that carries a slice of bools.
func Bools(key string, bs []bool) Field {
return Array(key, bools(bs))
}
// ByteStrings constructs a field that carries a slice of []byte, each of which
// must be UTF-8 encoded text.
func ByteStrings(key string, bss [][]byte) Field {
return Array(key, byteStringsArray(bss))
}
// Complex128s constructs a field that carries a slice of complex numbers.
func Complex128s(key string, nums []complex128) Field {
return Array(key, complex128s(nums))
}
// Complex64s constructs a field that carries a slice of complex numbers.
func Complex64s(key string, nums []complex64) Field {
return Array(key, complex64s(nums))
}
// Durations constructs a field that carries a slice of time.Durations.
func Durations(key string, ds []time.Duration) Field {
return Array(key, durations(ds))
}
// Float64s constructs a field that carries a slice of floats.
func Float64s(key string, nums []float64) Field {
return Array(key, float64s(nums))
}
// Float32s constructs a field that carries a slice of floats.
func Float32s(key string, nums []float32) Field {
return Array(key, float32s(nums))
}
// Ints constructs a field that carries a slice of integers.
func Ints(key string, nums []int) Field {
return Array(key, ints(nums))
}
// Int64s constructs a field that carries a slice of integers.
func Int64s(key string, nums []int64) Field {
return Array(key, int64s(nums))
}
// Int32s constructs a field that carries a slice of integers.
func Int32s(key string, nums []int32) Field {
return Array(key, int32s(nums))
}
// Int16s constructs a field that carries a slice of integers.
func Int16s(key string, nums []int16) Field {
return Array(key, int16s(nums))
}
// Int8s constructs a field that carries a slice of integers.
func Int8s(key string, nums []int8) Field {
return Array(key, int8s(nums))
}
// Strings constructs a field that carries a slice of strings.
func Strings(key string, ss []string) Field {
return Array(key, stringArray(ss))
}
// Times constructs a field that carries a slice of time.Times.
func Times(key string, ts []time.Time) Field {
return Array(key, times(ts))
}
// Uints constructs a field that carries a slice of unsigned integers.
func Uints(key string, nums []uint) Field {
return Array(key, uints(nums))
}
// Uint64s constructs a field that carries a slice of unsigned integers.
func Uint64s(key string, nums []uint64) Field {
return Array(key, uint64s(nums))
}
// Uint32s constructs a field that carries a slice of unsigned integers.
func Uint32s(key string, nums []uint32) Field {
return Array(key, uint32s(nums))
}
// Uint16s constructs a field that carries a slice of unsigned integers.
func Uint16s(key string, nums []uint16) Field {
return Array(key, uint16s(nums))
}
// Uint8s constructs a field that carries a slice of unsigned integers.
func Uint8s(key string, nums []uint8) Field {
return Array(key, uint8s(nums))
}
// Uintptrs constructs a field that carries a slice of pointer addresses.
func Uintptrs(key string, us []uintptr) Field {
return Array(key, uintptrs(us))
}
// Errors constructs a field that carries a slice of errors.
func Errors(key string, errs []error) Field {
return Array(key, errArray(errs))
}
type bools []bool
func (bs bools) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range bs {
arr.AppendBool(bs[i])
}
return nil
}
type byteStringsArray [][]byte
func (bss byteStringsArray) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range bss {
arr.AppendByteString(bss[i])
}
return nil
}
type complex128s []complex128
func (nums complex128s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendComplex128(nums[i])
}
return nil
}
type complex64s []complex64
func (nums complex64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendComplex64(nums[i])
}
return nil
}
type durations []time.Duration
func (ds durations) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range ds {
arr.AppendDuration(ds[i])
}
return nil
}
type float64s []float64
func (nums float64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendFloat64(nums[i])
}
return nil
}
type float32s []float32
func (nums float32s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendFloat32(nums[i])
}
return nil
}
type ints []int
func (nums ints) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendInt(nums[i])
}
return nil
}
type int64s []int64
func (nums int64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendInt64(nums[i])
}
return nil
}
type int32s []int32
func (nums int32s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendInt32(nums[i])
}
return nil
}
type int16s []int16
func (nums int16s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendInt16(nums[i])
}
return nil
}
type int8s []int8
func (nums int8s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendInt8(nums[i])
}
return nil
}
type stringArray []string
func (ss stringArray) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range ss {
arr.AppendString(ss[i])
}
return nil
}
type times []time.Time
func (ts times) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range ts {
arr.AppendTime(ts[i])
}
return nil
}
type uints []uint
func (nums uints) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendUint(nums[i])
}
return nil
}
type uint64s []uint64
func (nums uint64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendUint64(nums[i])
}
return nil
}
type uint32s []uint32
func (nums uint32s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendUint32(nums[i])
}
return nil
}
type uint16s []uint16
func (nums uint16s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendUint16(nums[i])
}
return nil
}
type uint8s []uint8
func (nums uint8s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendUint8(nums[i])
}
return nil
}
type uintptrs []uintptr
func (nums uintptrs) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range nums {
arr.AppendUintptr(nums[i])
}
return nil
}

115
build/manifest/vendor/go.uber.org/zap/buffer/buffer.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package buffer provides a thin wrapper around a byte slice. Unlike the
// standard library's bytes.Buffer, it supports a portion of the strconv
// package's zero-allocation formatters.
package buffer // import "go.uber.org/zap/buffer"
import "strconv"
const _size = 1024 // by default, create 1 KiB buffers
// Buffer is a thin wrapper around a byte slice. It's intended to be pooled, so
// the only way to construct one is via a Pool.
type Buffer struct {
bs []byte
pool Pool
}
// AppendByte writes a single byte to the Buffer.
func (b *Buffer) AppendByte(v byte) {
b.bs = append(b.bs, v)
}
// AppendString writes a string to the Buffer.
func (b *Buffer) AppendString(s string) {
b.bs = append(b.bs, s...)
}
// AppendInt appends an integer to the underlying buffer (assuming base 10).
func (b *Buffer) AppendInt(i int64) {
b.bs = strconv.AppendInt(b.bs, i, 10)
}
// AppendUint appends an unsigned integer to the underlying buffer (assuming
// base 10).
func (b *Buffer) AppendUint(i uint64) {
b.bs = strconv.AppendUint(b.bs, i, 10)
}
// AppendBool appends a bool to the underlying buffer.
func (b *Buffer) AppendBool(v bool) {
b.bs = strconv.AppendBool(b.bs, v)
}
// AppendFloat appends a float to the underlying buffer. It doesn't quote NaN
// or +/- Inf.
func (b *Buffer) AppendFloat(f float64, bitSize int) {
b.bs = strconv.AppendFloat(b.bs, f, 'f', -1, bitSize)
}
// Len returns the length of the underlying byte slice.
func (b *Buffer) Len() int {
return len(b.bs)
}
// Cap returns the capacity of the underlying byte slice.
func (b *Buffer) Cap() int {
return cap(b.bs)
}
// Bytes returns a mutable reference to the underlying byte slice.
func (b *Buffer) Bytes() []byte {
return b.bs
}
// String returns a string copy of the underlying byte slice.
func (b *Buffer) String() string {
return string(b.bs)
}
// Reset resets the underlying byte slice. Subsequent writes re-use the slice's
// backing array.
func (b *Buffer) Reset() {
b.bs = b.bs[:0]
}
// Write implements io.Writer.
func (b *Buffer) Write(bs []byte) (int, error) {
b.bs = append(b.bs, bs...)
return len(bs), nil
}
// TrimNewline trims any final "\n" byte from the end of the buffer.
func (b *Buffer) TrimNewline() {
if i := len(b.bs) - 1; i >= 0 {
if b.bs[i] == '\n' {
b.bs = b.bs[:i]
}
}
}
// Free returns the Buffer to its Pool.
//
// Callers must not retain references to the Buffer after calling Free.
func (b *Buffer) Free() {
b.pool.put(b)
}

49
build/manifest/vendor/go.uber.org/zap/buffer/pool.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package buffer
import "sync"
// A Pool is a type-safe wrapper around a sync.Pool.
type Pool struct {
p *sync.Pool
}
// NewPool constructs a new Pool.
func NewPool() Pool {
return Pool{p: &sync.Pool{
New: func() interface{} {
return &Buffer{bs: make([]byte, 0, _size)}
},
}}
}
// Get retrieves a Buffer from the pool, creating one if necessary.
func (p Pool) Get() *Buffer {
buf := p.p.Get().(*Buffer)
buf.Reset()
buf.pool = p
return buf
}
func (p Pool) put(buf *Buffer) {
p.p.Put(buf)
}

17
build/manifest/vendor/go.uber.org/zap/check_license.sh generated vendored Executable file
View file

@ -0,0 +1,17 @@
#!/bin/bash -e
ERROR_COUNT=0
while read -r file
do
case "$(head -1 "${file}")" in
*"Copyright (c) "*" Uber Technologies, Inc.")
# everything's cool
;;
*)
echo "$file is missing license header."
(( ERROR_COUNT++ ))
;;
esac
done < <(git ls-files "*\.go")
exit $ERROR_COUNT

243
build/manifest/vendor/go.uber.org/zap/config.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"sort"
"time"
"go.uber.org/zap/zapcore"
)
// SamplingConfig sets a sampling strategy for the logger. Sampling caps the
// global CPU and I/O load that logging puts on your process while attempting
// to preserve a representative subset of your logs.
//
// Values configured here are per-second. See zapcore.NewSampler for details.
type SamplingConfig struct {
Initial int `json:"initial" yaml:"initial"`
Thereafter int `json:"thereafter" yaml:"thereafter"`
}
// Config offers a declarative way to construct a logger. It doesn't do
// anything that can't be done with New, Options, and the various
// zapcore.WriteSyncer and zapcore.Core wrappers, but it's a simpler way to
// toggle common options.
//
// Note that Config intentionally supports only the most common options. More
// unusual logging setups (logging to network connections or message queues,
// splitting output between multiple files, etc.) are possible, but require
// direct use of the zapcore package. For sample code, see the package-level
// BasicConfiguration and AdvancedConfiguration examples.
//
// For an example showing runtime log level changes, see the documentation for
// AtomicLevel.
type Config struct {
// Level is the minimum enabled logging level. Note that this is a dynamic
// level, so calling Config.Level.SetLevel will atomically change the log
// level of all loggers descended from this config.
Level AtomicLevel `json:"level" yaml:"level"`
// Development puts the logger in development mode, which changes the
// behavior of DPanicLevel and takes stacktraces more liberally.
Development bool `json:"development" yaml:"development"`
// DisableCaller stops annotating logs with the calling function's file
// name and line number. By default, all logs are annotated.
DisableCaller bool `json:"disableCaller" yaml:"disableCaller"`
// DisableStacktrace completely disables automatic stacktrace capturing. By
// default, stacktraces are captured for WarnLevel and above logs in
// development and ErrorLevel and above in production.
DisableStacktrace bool `json:"disableStacktrace" yaml:"disableStacktrace"`
// Sampling sets a sampling policy. A nil SamplingConfig disables sampling.
Sampling *SamplingConfig `json:"sampling" yaml:"sampling"`
// Encoding sets the logger's encoding. Valid values are "json" and
// "console", as well as any third-party encodings registered via
// RegisterEncoder.
Encoding string `json:"encoding" yaml:"encoding"`
// EncoderConfig sets options for the chosen encoder. See
// zapcore.EncoderConfig for details.
EncoderConfig zapcore.EncoderConfig `json:"encoderConfig" yaml:"encoderConfig"`
// OutputPaths is a list of URLs or file paths to write logging output to.
// See Open for details.
OutputPaths []string `json:"outputPaths" yaml:"outputPaths"`
// ErrorOutputPaths is a list of URLs to write internal logger errors to.
// The default is standard error.
//
// Note that this setting only affects internal errors; for sample code that
// sends error-level logs to a different location from info- and debug-level
// logs, see the package-level AdvancedConfiguration example.
ErrorOutputPaths []string `json:"errorOutputPaths" yaml:"errorOutputPaths"`
// InitialFields is a collection of fields to add to the root logger.
InitialFields map[string]interface{} `json:"initialFields" yaml:"initialFields"`
}
// NewProductionEncoderConfig returns an opinionated EncoderConfig for
// production environments.
func NewProductionEncoderConfig() zapcore.EncoderConfig {
return zapcore.EncoderConfig{
TimeKey: "ts",
LevelKey: "level",
NameKey: "logger",
CallerKey: "caller",
MessageKey: "msg",
StacktraceKey: "stacktrace",
LineEnding: zapcore.DefaultLineEnding,
EncodeLevel: zapcore.LowercaseLevelEncoder,
EncodeTime: zapcore.EpochTimeEncoder,
EncodeDuration: zapcore.SecondsDurationEncoder,
EncodeCaller: zapcore.ShortCallerEncoder,
}
}
// NewProductionConfig is a reasonable production logging configuration.
// Logging is enabled at InfoLevel and above.
//
// It uses a JSON encoder, writes to standard error, and enables sampling.
// Stacktraces are automatically included on logs of ErrorLevel and above.
func NewProductionConfig() Config {
return Config{
Level: NewAtomicLevelAt(InfoLevel),
Development: false,
Sampling: &SamplingConfig{
Initial: 100,
Thereafter: 100,
},
Encoding: "json",
EncoderConfig: NewProductionEncoderConfig(),
OutputPaths: []string{"stderr"},
ErrorOutputPaths: []string{"stderr"},
}
}
// NewDevelopmentEncoderConfig returns an opinionated EncoderConfig for
// development environments.
func NewDevelopmentEncoderConfig() zapcore.EncoderConfig {
return zapcore.EncoderConfig{
// Keys can be anything except the empty string.
TimeKey: "T",
LevelKey: "L",
NameKey: "N",
CallerKey: "C",
MessageKey: "M",
StacktraceKey: "S",
LineEnding: zapcore.DefaultLineEnding,
EncodeLevel: zapcore.CapitalLevelEncoder,
EncodeTime: zapcore.ISO8601TimeEncoder,
EncodeDuration: zapcore.StringDurationEncoder,
EncodeCaller: zapcore.ShortCallerEncoder,
}
}
// NewDevelopmentConfig is a reasonable development logging configuration.
// Logging is enabled at DebugLevel and above.
//
// It enables development mode (which makes DPanicLevel logs panic), uses a
// console encoder, writes to standard error, and disables sampling.
// Stacktraces are automatically included on logs of WarnLevel and above.
func NewDevelopmentConfig() Config {
return Config{
Level: NewAtomicLevelAt(DebugLevel),
Development: true,
Encoding: "console",
EncoderConfig: NewDevelopmentEncoderConfig(),
OutputPaths: []string{"stderr"},
ErrorOutputPaths: []string{"stderr"},
}
}
// Build constructs a logger from the Config and Options.
func (cfg Config) Build(opts ...Option) (*Logger, error) {
enc, err := cfg.buildEncoder()
if err != nil {
return nil, err
}
sink, errSink, err := cfg.openSinks()
if err != nil {
return nil, err
}
log := New(
zapcore.NewCore(enc, sink, cfg.Level),
cfg.buildOptions(errSink)...,
)
if len(opts) > 0 {
log = log.WithOptions(opts...)
}
return log, nil
}
func (cfg Config) buildOptions(errSink zapcore.WriteSyncer) []Option {
opts := []Option{ErrorOutput(errSink)}
if cfg.Development {
opts = append(opts, Development())
}
if !cfg.DisableCaller {
opts = append(opts, AddCaller())
}
stackLevel := ErrorLevel
if cfg.Development {
stackLevel = WarnLevel
}
if !cfg.DisableStacktrace {
opts = append(opts, AddStacktrace(stackLevel))
}
if cfg.Sampling != nil {
opts = append(opts, WrapCore(func(core zapcore.Core) zapcore.Core {
return zapcore.NewSampler(core, time.Second, int(cfg.Sampling.Initial), int(cfg.Sampling.Thereafter))
}))
}
if len(cfg.InitialFields) > 0 {
fs := make([]Field, 0, len(cfg.InitialFields))
keys := make([]string, 0, len(cfg.InitialFields))
for k := range cfg.InitialFields {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
fs = append(fs, Any(k, cfg.InitialFields[k]))
}
opts = append(opts, Fields(fs...))
}
return opts
}
func (cfg Config) openSinks() (zapcore.WriteSyncer, zapcore.WriteSyncer, error) {
sink, closeOut, err := Open(cfg.OutputPaths...)
if err != nil {
return nil, nil, err
}
errSink, _, err := Open(cfg.ErrorOutputPaths...)
if err != nil {
closeOut()
return nil, nil, err
}
return sink, errSink, nil
}
func (cfg Config) buildEncoder() (zapcore.Encoder, error) {
return newEncoder(cfg.Encoding, cfg.EncoderConfig)
}

113
build/manifest/vendor/go.uber.org/zap/doc.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package zap provides fast, structured, leveled logging.
//
// For applications that log in the hot path, reflection-based serialization
// and string formatting are prohibitively expensive - they're CPU-intensive
// and make many small allocations. Put differently, using json.Marshal and
// fmt.Fprintf to log tons of interface{} makes your application slow.
//
// Zap takes a different approach. It includes a reflection-free,
// zero-allocation JSON encoder, and the base Logger strives to avoid
// serialization overhead and allocations wherever possible. By building the
// high-level SugaredLogger on that foundation, zap lets users choose when
// they need to count every allocation and when they'd prefer a more familiar,
// loosely typed API.
//
// Choosing a Logger
//
// In contexts where performance is nice, but not critical, use the
// SugaredLogger. It's 4-10x faster than other structured logging packages and
// supports both structured and printf-style logging. Like log15 and go-kit,
// the SugaredLogger's structured logging APIs are loosely typed and accept a
// variadic number of key-value pairs. (For more advanced use cases, they also
// accept strongly typed fields - see the SugaredLogger.With documentation for
// details.)
// sugar := zap.NewExample().Sugar()
// defer sugar.Sync()
// sugar.Infow("failed to fetch URL",
// "url", "http://example.com",
// "attempt", 3,
// "backoff", time.Second,
// )
// sugar.Infof("failed to fetch URL: %s", "http://example.com")
//
// By default, loggers are unbuffered. However, since zap's low-level APIs
// allow buffering, calling Sync before letting your process exit is a good
// habit.
//
// In the rare contexts where every microsecond and every allocation matter,
// use the Logger. It's even faster than the SugaredLogger and allocates far
// less, but it only supports strongly-typed, structured logging.
// logger := zap.NewExample()
// defer logger.Sync()
// logger.Info("failed to fetch URL",
// zap.String("url", "http://example.com"),
// zap.Int("attempt", 3),
// zap.Duration("backoff", time.Second),
// )
//
// Choosing between the Logger and SugaredLogger doesn't need to be an
// application-wide decision: converting between the two is simple and
// inexpensive.
// logger := zap.NewExample()
// defer logger.Sync()
// sugar := logger.Sugar()
// plain := sugar.Desugar()
//
// Configuring Zap
//
// The simplest way to build a Logger is to use zap's opinionated presets:
// NewExample, NewProduction, and NewDevelopment. These presets build a logger
// with a single function call:
// logger, err := zap.NewProduction()
// if err != nil {
// log.Fatalf("can't initialize zap logger: %v", err)
// }
// defer logger.Sync()
//
// Presets are fine for small projects, but larger projects and organizations
// naturally require a bit more customization. For most users, zap's Config
// struct strikes the right balance between flexibility and convenience. See
// the package-level BasicConfiguration example for sample code.
//
// More unusual configurations (splitting output between files, sending logs
// to a message queue, etc.) are possible, but require direct use of
// go.uber.org/zap/zapcore. See the package-level AdvancedConfiguration
// example for sample code.
//
// Extending Zap
//
// The zap package itself is a relatively thin wrapper around the interfaces
// in go.uber.org/zap/zapcore. Extending zap to support a new encoding (e.g.,
// BSON), a new log sink (e.g., Kafka), or something more exotic (perhaps an
// exception aggregation service, like Sentry or Rollbar) typically requires
// implementing the zapcore.Encoder, zapcore.WriteSyncer, or zapcore.Core
// interfaces. See the zapcore documentation for details.
//
// Similarly, package authors can use the high-performance Encoder and Core
// implementations in the zapcore package to build their own loggers.
//
// Frequently Asked Questions
//
// An FAQ covering everything from installation errors to design decisions is
// available at https://github.com/uber-go/zap/blob/master/FAQ.md.
package zap // import "go.uber.org/zap"

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"errors"
"fmt"
"sync"
"go.uber.org/zap/zapcore"
)
var (
errNoEncoderNameSpecified = errors.New("no encoder name specified")
_encoderNameToConstructor = map[string]func(zapcore.EncoderConfig) (zapcore.Encoder, error){
"console": func(encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
return zapcore.NewConsoleEncoder(encoderConfig), nil
},
"json": func(encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
return zapcore.NewJSONEncoder(encoderConfig), nil
},
}
_encoderMutex sync.RWMutex
)
// RegisterEncoder registers an encoder constructor, which the Config struct
// can then reference. By default, the "json" and "console" encoders are
// registered.
//
// Attempting to register an encoder whose name is already taken returns an
// error.
func RegisterEncoder(name string, constructor func(zapcore.EncoderConfig) (zapcore.Encoder, error)) error {
_encoderMutex.Lock()
defer _encoderMutex.Unlock()
if name == "" {
return errNoEncoderNameSpecified
}
if _, ok := _encoderNameToConstructor[name]; ok {
return fmt.Errorf("encoder already registered for name %q", name)
}
_encoderNameToConstructor[name] = constructor
return nil
}
func newEncoder(name string, encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
_encoderMutex.RLock()
defer _encoderMutex.RUnlock()
if name == "" {
return nil, errNoEncoderNameSpecified
}
constructor, ok := _encoderNameToConstructor[name]
if !ok {
return nil, fmt.Errorf("no encoder registered for name %q", name)
}
return constructor(encoderConfig)
}

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build/manifest/vendor/go.uber.org/zap/error.go generated vendored Normal file
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"sync"
"go.uber.org/zap/zapcore"
)
var _errArrayElemPool = sync.Pool{New: func() interface{} {
return &errArrayElem{}
}}
// Error is shorthand for the common idiom NamedError("error", err).
func Error(err error) Field {
return NamedError("error", err)
}
// NamedError constructs a field that lazily stores err.Error() under the
// provided key. Errors which also implement fmt.Formatter (like those produced
// by github.com/pkg/errors) will also have their verbose representation stored
// under key+"Verbose". If passed a nil error, the field is a no-op.
//
// For the common case in which the key is simply "error", the Error function
// is shorter and less repetitive.
func NamedError(key string, err error) Field {
if err == nil {
return Skip()
}
return Field{Key: key, Type: zapcore.ErrorType, Interface: err}
}
type errArray []error
func (errs errArray) MarshalLogArray(arr zapcore.ArrayEncoder) error {
for i := range errs {
if errs[i] == nil {
continue
}
// To represent each error as an object with an "error" attribute and
// potentially an "errorVerbose" attribute, we need to wrap it in a
// type that implements LogObjectMarshaler. To prevent this from
// allocating, pool the wrapper type.
elem := _errArrayElemPool.Get().(*errArrayElem)
elem.error = errs[i]
arr.AppendObject(elem)
elem.error = nil
_errArrayElemPool.Put(elem)
}
return nil
}
type errArrayElem struct {
error
}
func (e *errArrayElem) MarshalLogObject(enc zapcore.ObjectEncoder) error {
// Re-use the error field's logic, which supports non-standard error types.
Error(e.error).AddTo(enc)
return nil
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"fmt"
"math"
"time"
"go.uber.org/zap/zapcore"
)
// Field is an alias for Field. Aliasing this type dramatically
// improves the navigability of this package's API documentation.
type Field = zapcore.Field
// Skip constructs a no-op field, which is often useful when handling invalid
// inputs in other Field constructors.
func Skip() Field {
return Field{Type: zapcore.SkipType}
}
// Binary constructs a field that carries an opaque binary blob.
//
// Binary data is serialized in an encoding-appropriate format. For example,
// zap's JSON encoder base64-encodes binary blobs. To log UTF-8 encoded text,
// use ByteString.
func Binary(key string, val []byte) Field {
return Field{Key: key, Type: zapcore.BinaryType, Interface: val}
}
// Bool constructs a field that carries a bool.
func Bool(key string, val bool) Field {
var ival int64
if val {
ival = 1
}
return Field{Key: key, Type: zapcore.BoolType, Integer: ival}
}
// ByteString constructs a field that carries UTF-8 encoded text as a []byte.
// To log opaque binary blobs (which aren't necessarily valid UTF-8), use
// Binary.
func ByteString(key string, val []byte) Field {
return Field{Key: key, Type: zapcore.ByteStringType, Interface: val}
}
// Complex128 constructs a field that carries a complex number. Unlike most
// numeric fields, this costs an allocation (to convert the complex128 to
// interface{}).
func Complex128(key string, val complex128) Field {
return Field{Key: key, Type: zapcore.Complex128Type, Interface: val}
}
// Complex64 constructs a field that carries a complex number. Unlike most
// numeric fields, this costs an allocation (to convert the complex64 to
// interface{}).
func Complex64(key string, val complex64) Field {
return Field{Key: key, Type: zapcore.Complex64Type, Interface: val}
}
// Float64 constructs a field that carries a float64. The way the
// floating-point value is represented is encoder-dependent, so marshaling is
// necessarily lazy.
func Float64(key string, val float64) Field {
return Field{Key: key, Type: zapcore.Float64Type, Integer: int64(math.Float64bits(val))}
}
// Float32 constructs a field that carries a float32. The way the
// floating-point value is represented is encoder-dependent, so marshaling is
// necessarily lazy.
func Float32(key string, val float32) Field {
return Field{Key: key, Type: zapcore.Float32Type, Integer: int64(math.Float32bits(val))}
}
// Int constructs a field with the given key and value.
func Int(key string, val int) Field {
return Int64(key, int64(val))
}
// Int64 constructs a field with the given key and value.
func Int64(key string, val int64) Field {
return Field{Key: key, Type: zapcore.Int64Type, Integer: val}
}
// Int32 constructs a field with the given key and value.
func Int32(key string, val int32) Field {
return Field{Key: key, Type: zapcore.Int32Type, Integer: int64(val)}
}
// Int16 constructs a field with the given key and value.
func Int16(key string, val int16) Field {
return Field{Key: key, Type: zapcore.Int16Type, Integer: int64(val)}
}
// Int8 constructs a field with the given key and value.
func Int8(key string, val int8) Field {
return Field{Key: key, Type: zapcore.Int8Type, Integer: int64(val)}
}
// String constructs a field with the given key and value.
func String(key string, val string) Field {
return Field{Key: key, Type: zapcore.StringType, String: val}
}
// Uint constructs a field with the given key and value.
func Uint(key string, val uint) Field {
return Uint64(key, uint64(val))
}
// Uint64 constructs a field with the given key and value.
func Uint64(key string, val uint64) Field {
return Field{Key: key, Type: zapcore.Uint64Type, Integer: int64(val)}
}
// Uint32 constructs a field with the given key and value.
func Uint32(key string, val uint32) Field {
return Field{Key: key, Type: zapcore.Uint32Type, Integer: int64(val)}
}
// Uint16 constructs a field with the given key and value.
func Uint16(key string, val uint16) Field {
return Field{Key: key, Type: zapcore.Uint16Type, Integer: int64(val)}
}
// Uint8 constructs a field with the given key and value.
func Uint8(key string, val uint8) Field {
return Field{Key: key, Type: zapcore.Uint8Type, Integer: int64(val)}
}
// Uintptr constructs a field with the given key and value.
func Uintptr(key string, val uintptr) Field {
return Field{Key: key, Type: zapcore.UintptrType, Integer: int64(val)}
}
// Reflect constructs a field with the given key and an arbitrary object. It uses
// an encoding-appropriate, reflection-based function to lazily serialize nearly
// any object into the logging context, but it's relatively slow and
// allocation-heavy. Outside tests, Any is always a better choice.
//
// If encoding fails (e.g., trying to serialize a map[int]string to JSON), Reflect
// includes the error message in the final log output.
func Reflect(key string, val interface{}) Field {
return Field{Key: key, Type: zapcore.ReflectType, Interface: val}
}
// Namespace creates a named, isolated scope within the logger's context. All
// subsequent fields will be added to the new namespace.
//
// This helps prevent key collisions when injecting loggers into sub-components
// or third-party libraries.
func Namespace(key string) Field {
return Field{Key: key, Type: zapcore.NamespaceType}
}
// Stringer constructs a field with the given key and the output of the value's
// String method. The Stringer's String method is called lazily.
func Stringer(key string, val fmt.Stringer) Field {
return Field{Key: key, Type: zapcore.StringerType, Interface: val}
}
// Time constructs a Field with the given key and value. The encoder
// controls how the time is serialized.
func Time(key string, val time.Time) Field {
return Field{Key: key, Type: zapcore.TimeType, Integer: val.UnixNano(), Interface: val.Location()}
}
// Stack constructs a field that stores a stacktrace of the current goroutine
// under provided key. Keep in mind that taking a stacktrace is eager and
// expensive (relatively speaking); this function both makes an allocation and
// takes about two microseconds.
func Stack(key string) Field {
// Returning the stacktrace as a string costs an allocation, but saves us
// from expanding the zapcore.Field union struct to include a byte slice. Since
// taking a stacktrace is already so expensive (~10us), the extra allocation
// is okay.
return String(key, takeStacktrace())
}
// Duration constructs a field with the given key and value. The encoder
// controls how the duration is serialized.
func Duration(key string, val time.Duration) Field {
return Field{Key: key, Type: zapcore.DurationType, Integer: int64(val)}
}
// Object constructs a field with the given key and ObjectMarshaler. It
// provides a flexible, but still type-safe and efficient, way to add map- or
// struct-like user-defined types to the logging context. The struct's
// MarshalLogObject method is called lazily.
func Object(key string, val zapcore.ObjectMarshaler) Field {
return Field{Key: key, Type: zapcore.ObjectMarshalerType, Interface: val}
}
// Any takes a key and an arbitrary value and chooses the best way to represent
// them as a field, falling back to a reflection-based approach only if
// necessary.
//
// Since byte/uint8 and rune/int32 are aliases, Any can't differentiate between
// them. To minimize surprises, []byte values are treated as binary blobs, byte
// values are treated as uint8, and runes are always treated as integers.
func Any(key string, value interface{}) Field {
switch val := value.(type) {
case zapcore.ObjectMarshaler:
return Object(key, val)
case zapcore.ArrayMarshaler:
return Array(key, val)
case bool:
return Bool(key, val)
case []bool:
return Bools(key, val)
case complex128:
return Complex128(key, val)
case []complex128:
return Complex128s(key, val)
case complex64:
return Complex64(key, val)
case []complex64:
return Complex64s(key, val)
case float64:
return Float64(key, val)
case []float64:
return Float64s(key, val)
case float32:
return Float32(key, val)
case []float32:
return Float32s(key, val)
case int:
return Int(key, val)
case []int:
return Ints(key, val)
case int64:
return Int64(key, val)
case []int64:
return Int64s(key, val)
case int32:
return Int32(key, val)
case []int32:
return Int32s(key, val)
case int16:
return Int16(key, val)
case []int16:
return Int16s(key, val)
case int8:
return Int8(key, val)
case []int8:
return Int8s(key, val)
case string:
return String(key, val)
case []string:
return Strings(key, val)
case uint:
return Uint(key, val)
case []uint:
return Uints(key, val)
case uint64:
return Uint64(key, val)
case []uint64:
return Uint64s(key, val)
case uint32:
return Uint32(key, val)
case []uint32:
return Uint32s(key, val)
case uint16:
return Uint16(key, val)
case []uint16:
return Uint16s(key, val)
case uint8:
return Uint8(key, val)
case []byte:
return Binary(key, val)
case uintptr:
return Uintptr(key, val)
case []uintptr:
return Uintptrs(key, val)
case time.Time:
return Time(key, val)
case []time.Time:
return Times(key, val)
case time.Duration:
return Duration(key, val)
case []time.Duration:
return Durations(key, val)
case error:
return NamedError(key, val)
case []error:
return Errors(key, val)
case fmt.Stringer:
return Stringer(key, val)
default:
return Reflect(key, val)
}
}

39
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"flag"
"go.uber.org/zap/zapcore"
)
// LevelFlag uses the standard library's flag.Var to declare a global flag
// with the specified name, default, and usage guidance. The returned value is
// a pointer to the value of the flag.
//
// If you don't want to use the flag package's global state, you can use any
// non-nil *Level as a flag.Value with your own *flag.FlagSet.
func LevelFlag(name string, defaultLevel zapcore.Level, usage string) *zapcore.Level {
lvl := defaultLevel
flag.Var(&lvl, name, usage)
return &lvl
}

76
build/manifest/vendor/go.uber.org/zap/glide.lock generated vendored Normal file
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hash: f073ba522c06c88ea3075bde32a8aaf0969a840a66cab6318a0897d141ffee92
updated: 2017-07-22T18:06:49.598185334-07:00
imports:
- name: go.uber.org/atomic
version: 4e336646b2ef9fc6e47be8e21594178f98e5ebcf
- name: go.uber.org/multierr
version: 3c4937480c32f4c13a875a1829af76c98ca3d40a
testImports:
- name: github.com/apex/log
version: d9b960447bfa720077b2da653cc79e533455b499
subpackages:
- handlers/json
- name: github.com/axw/gocov
version: 3a69a0d2a4ef1f263e2d92b041a69593d6964fe8
subpackages:
- gocov
- name: github.com/davecgh/go-spew
version: 04cdfd42973bb9c8589fd6a731800cf222fde1a9
subpackages:
- spew
- name: github.com/fatih/color
version: 62e9147c64a1ed519147b62a56a14e83e2be02c1
- name: github.com/go-kit/kit
version: e10f5bf035be9af21fd5b2fb4469d5716c6ab07d
subpackages:
- log
- name: github.com/go-logfmt/logfmt
version: 390ab7935ee28ec6b286364bba9b4dd6410cb3d5
- name: github.com/go-stack/stack
version: 54be5f394ed2c3e19dac9134a40a95ba5a017f7b
- name: github.com/golang/lint
version: c5fb716d6688a859aae56d26d3e6070808df29f7
subpackages:
- golint
- name: github.com/kr/logfmt
version: b84e30acd515aadc4b783ad4ff83aff3299bdfe0
- name: github.com/mattn/go-colorable
version: 3fa8c76f9daed4067e4a806fb7e4dc86455c6d6a
- name: github.com/mattn/go-isatty
version: fc9e8d8ef48496124e79ae0df75490096eccf6fe
- name: github.com/mattn/goveralls
version: 6efce81852ad1b7567c17ad71b03aeccc9dd9ae0
- name: github.com/pborman/uuid
version: e790cca94e6cc75c7064b1332e63811d4aae1a53
- name: github.com/pkg/errors
version: 645ef00459ed84a119197bfb8d8205042c6df63d
- name: github.com/pmezard/go-difflib
version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
subpackages:
- difflib
- name: github.com/rs/zerolog
version: eed4c2b94d945e0b2456ad6aa518a443986b5f22
- name: github.com/satori/go.uuid
version: 5bf94b69c6b68ee1b541973bb8e1144db23a194b
- name: github.com/sirupsen/logrus
version: 7dd06bf38e1e13df288d471a57d5adbac106be9e
- name: github.com/stretchr/testify
version: f6abca593680b2315d2075e0f5e2a9751e3f431a
subpackages:
- assert
- require
- name: go.pedge.io/lion
version: 87958e8713f1fa138d993087133b97e976642159
- name: golang.org/x/sys
version: c4489faa6e5ab84c0ef40d6ee878f7a030281f0f
subpackages:
- unix
- name: golang.org/x/tools
version: 496819729719f9d07692195e0a94d6edd2251389
subpackages:
- cover
- name: gopkg.in/inconshreveable/log15.v2
version: b105bd37f74e5d9dc7b6ad7806715c7a2b83fd3f
subpackages:
- stack
- term

35
build/manifest/vendor/go.uber.org/zap/glide.yaml generated vendored Normal file
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package: go.uber.org/zap
license: MIT
import:
- package: go.uber.org/atomic
version: ^1
- package: go.uber.org/multierr
version: ^1
testImport:
- package: github.com/satori/go.uuid
- package: github.com/sirupsen/logrus
- package: github.com/apex/log
subpackages:
- handlers/json
- package: github.com/go-kit/kit
subpackages:
- log
- package: github.com/stretchr/testify
subpackages:
- assert
- require
- package: gopkg.in/inconshreveable/log15.v2
- package: github.com/mattn/goveralls
- package: github.com/pborman/uuid
- package: github.com/pkg/errors
- package: go.pedge.io/lion
- package: github.com/rs/zerolog
- package: golang.org/x/tools
subpackages:
- cover
- package: github.com/golang/lint
subpackages:
- golint
- package: github.com/axw/gocov
subpackages:
- gocov

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"bytes"
"fmt"
"log"
"os"
"sync"
"go.uber.org/zap/zapcore"
)
const (
_stdLogDefaultDepth = 2
_loggerWriterDepth = 2
_programmerErrorTemplate = "You've found a bug in zap! Please file a bug at " +
"https://github.com/uber-go/zap/issues/new and reference this error: %v"
)
var (
_globalMu sync.RWMutex
_globalL = NewNop()
_globalS = _globalL.Sugar()
)
// L returns the global Logger, which can be reconfigured with ReplaceGlobals.
// It's safe for concurrent use.
func L() *Logger {
_globalMu.RLock()
l := _globalL
_globalMu.RUnlock()
return l
}
// S returns the global SugaredLogger, which can be reconfigured with
// ReplaceGlobals. It's safe for concurrent use.
func S() *SugaredLogger {
_globalMu.RLock()
s := _globalS
_globalMu.RUnlock()
return s
}
// ReplaceGlobals replaces the global Logger and SugaredLogger, and returns a
// function to restore the original values. It's safe for concurrent use.
func ReplaceGlobals(logger *Logger) func() {
_globalMu.Lock()
prev := _globalL
_globalL = logger
_globalS = logger.Sugar()
_globalMu.Unlock()
return func() { ReplaceGlobals(prev) }
}
// NewStdLog returns a *log.Logger which writes to the supplied zap Logger at
// InfoLevel. To redirect the standard library's package-global logging
// functions, use RedirectStdLog instead.
func NewStdLog(l *Logger) *log.Logger {
logger := l.WithOptions(AddCallerSkip(_stdLogDefaultDepth + _loggerWriterDepth))
f := logger.Info
return log.New(&loggerWriter{f}, "" /* prefix */, 0 /* flags */)
}
// NewStdLogAt returns *log.Logger which writes to supplied zap logger at
// required level.
func NewStdLogAt(l *Logger, level zapcore.Level) (*log.Logger, error) {
logger := l.WithOptions(AddCallerSkip(_stdLogDefaultDepth + _loggerWriterDepth))
logFunc, err := levelToFunc(logger, level)
if err != nil {
return nil, err
}
return log.New(&loggerWriter{logFunc}, "" /* prefix */, 0 /* flags */), nil
}
// RedirectStdLog redirects output from the standard library's package-global
// logger to the supplied logger at InfoLevel. Since zap already handles caller
// annotations, timestamps, etc., it automatically disables the standard
// library's annotations and prefixing.
//
// It returns a function to restore the original prefix and flags and reset the
// standard library's output to os.Stderr.
func RedirectStdLog(l *Logger) func() {
f, err := redirectStdLogAt(l, InfoLevel)
if err != nil {
// Can't get here, since passing InfoLevel to redirectStdLogAt always
// works.
panic(fmt.Sprintf(_programmerErrorTemplate, err))
}
return f
}
// RedirectStdLogAt redirects output from the standard library's package-global
// logger to the supplied logger at the specified level. Since zap already
// handles caller annotations, timestamps, etc., it automatically disables the
// standard library's annotations and prefixing.
//
// It returns a function to restore the original prefix and flags and reset the
// standard library's output to os.Stderr.
func RedirectStdLogAt(l *Logger, level zapcore.Level) (func(), error) {
return redirectStdLogAt(l, level)
}
func redirectStdLogAt(l *Logger, level zapcore.Level) (func(), error) {
flags := log.Flags()
prefix := log.Prefix()
log.SetFlags(0)
log.SetPrefix("")
logger := l.WithOptions(AddCallerSkip(_stdLogDefaultDepth + _loggerWriterDepth))
logFunc, err := levelToFunc(logger, level)
if err != nil {
return nil, err
}
log.SetOutput(&loggerWriter{logFunc})
return func() {
log.SetFlags(flags)
log.SetPrefix(prefix)
log.SetOutput(os.Stderr)
}, nil
}
func levelToFunc(logger *Logger, lvl zapcore.Level) (func(string, ...Field), error) {
switch lvl {
case DebugLevel:
return logger.Debug, nil
case InfoLevel:
return logger.Info, nil
case WarnLevel:
return logger.Warn, nil
case ErrorLevel:
return logger.Error, nil
case DPanicLevel:
return logger.DPanic, nil
case PanicLevel:
return logger.Panic, nil
case FatalLevel:
return logger.Fatal, nil
}
return nil, fmt.Errorf("unrecognized level: %q", lvl)
}
type loggerWriter struct {
logFunc func(msg string, fields ...Field)
}
func (l *loggerWriter) Write(p []byte) (int, error) {
p = bytes.TrimSpace(p)
l.logFunc(string(p))
return len(p), nil
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"encoding/json"
"fmt"
"net/http"
"go.uber.org/zap/zapcore"
)
// ServeHTTP is a simple JSON endpoint that can report on or change the current
// logging level.
//
// GET requests return a JSON description of the current logging level. PUT
// requests change the logging level and expect a payload like:
// {"level":"info"}
//
// It's perfectly safe to change the logging level while a program is running.
func (lvl AtomicLevel) ServeHTTP(w http.ResponseWriter, r *http.Request) {
type errorResponse struct {
Error string `json:"error"`
}
type payload struct {
Level *zapcore.Level `json:"level"`
}
enc := json.NewEncoder(w)
switch r.Method {
case http.MethodGet:
current := lvl.Level()
enc.Encode(payload{Level: &current})
case http.MethodPut:
var req payload
if errmess := func() string {
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
return fmt.Sprintf("Request body must be well-formed JSON: %v", err)
}
if req.Level == nil {
return "Must specify a logging level."
}
return ""
}(); errmess != "" {
w.WriteHeader(http.StatusBadRequest)
enc.Encode(errorResponse{Error: errmess})
return
}
lvl.SetLevel(*req.Level)
enc.Encode(req)
default:
w.WriteHeader(http.StatusMethodNotAllowed)
enc.Encode(errorResponse{
Error: "Only GET and PUT are supported.",
})
}
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package bufferpool houses zap's shared internal buffer pool. Third-party
// packages can recreate the same functionality with buffers.NewPool.
package bufferpool
import "go.uber.org/zap/buffer"
var (
_pool = buffer.NewPool()
// Get retrieves a buffer from the pool, creating one if necessary.
Get = _pool.Get
)

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package color adds coloring functionality for TTY output.
package color
import "fmt"
// Foreground colors.
const (
Black Color = iota + 30
Red
Green
Yellow
Blue
Magenta
Cyan
White
)
// Color represents a text color.
type Color uint8
// Add adds the coloring to the given string.
func (c Color) Add(s string) string {
return fmt.Sprintf("\x1b[%dm%s\x1b[0m", uint8(c), s)
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package exit provides stubs so that unit tests can exercise code that calls
// os.Exit(1).
package exit
import "os"
var real = func() { os.Exit(1) }
// Exit normally terminates the process by calling os.Exit(1). If the package
// is stubbed, it instead records a call in the testing spy.
func Exit() {
real()
}
// A StubbedExit is a testing fake for os.Exit.
type StubbedExit struct {
Exited bool
prev func()
}
// Stub substitutes a fake for the call to os.Exit(1).
func Stub() *StubbedExit {
s := &StubbedExit{prev: real}
real = s.exit
return s
}
// WithStub runs the supplied function with Exit stubbed. It returns the stub
// used, so that users can test whether the process would have crashed.
func WithStub(f func()) *StubbedExit {
s := Stub()
defer s.Unstub()
f()
return s
}
// Unstub restores the previous exit function.
func (se *StubbedExit) Unstub() {
real = se.prev
}
func (se *StubbedExit) exit() {
se.Exited = true
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"go.uber.org/atomic"
"go.uber.org/zap/zapcore"
)
const (
// DebugLevel logs are typically voluminous, and are usually disabled in
// production.
DebugLevel = zapcore.DebugLevel
// InfoLevel is the default logging priority.
InfoLevel = zapcore.InfoLevel
// WarnLevel logs are more important than Info, but don't need individual
// human review.
WarnLevel = zapcore.WarnLevel
// ErrorLevel logs are high-priority. If an application is running smoothly,
// it shouldn't generate any error-level logs.
ErrorLevel = zapcore.ErrorLevel
// DPanicLevel logs are particularly important errors. In development the
// logger panics after writing the message.
DPanicLevel = zapcore.DPanicLevel
// PanicLevel logs a message, then panics.
PanicLevel = zapcore.PanicLevel
// FatalLevel logs a message, then calls os.Exit(1).
FatalLevel = zapcore.FatalLevel
)
// LevelEnablerFunc is a convenient way to implement zapcore.LevelEnabler with
// an anonymous function.
//
// It's particularly useful when splitting log output between different
// outputs (e.g., standard error and standard out). For sample code, see the
// package-level AdvancedConfiguration example.
type LevelEnablerFunc func(zapcore.Level) bool
// Enabled calls the wrapped function.
func (f LevelEnablerFunc) Enabled(lvl zapcore.Level) bool { return f(lvl) }
// An AtomicLevel is an atomically changeable, dynamic logging level. It lets
// you safely change the log level of a tree of loggers (the root logger and
// any children created by adding context) at runtime.
//
// The AtomicLevel itself is an http.Handler that serves a JSON endpoint to
// alter its level.
//
// AtomicLevels must be created with the NewAtomicLevel constructor to allocate
// their internal atomic pointer.
type AtomicLevel struct {
l *atomic.Int32
}
// NewAtomicLevel creates an AtomicLevel with InfoLevel and above logging
// enabled.
func NewAtomicLevel() AtomicLevel {
return AtomicLevel{
l: atomic.NewInt32(int32(InfoLevel)),
}
}
// NewAtomicLevelAt is a convenience function that creates an AtomicLevel
// and then calls SetLevel with the given level.
func NewAtomicLevelAt(l zapcore.Level) AtomicLevel {
a := NewAtomicLevel()
a.SetLevel(l)
return a
}
// Enabled implements the zapcore.LevelEnabler interface, which allows the
// AtomicLevel to be used in place of traditional static levels.
func (lvl AtomicLevel) Enabled(l zapcore.Level) bool {
return lvl.Level().Enabled(l)
}
// Level returns the minimum enabled log level.
func (lvl AtomicLevel) Level() zapcore.Level {
return zapcore.Level(int8(lvl.l.Load()))
}
// SetLevel alters the logging level.
func (lvl AtomicLevel) SetLevel(l zapcore.Level) {
lvl.l.Store(int32(l))
}
// String returns the string representation of the underlying Level.
func (lvl AtomicLevel) String() string {
return lvl.Level().String()
}
// UnmarshalText unmarshals the text to an AtomicLevel. It uses the same text
// representations as the static zapcore.Levels ("debug", "info", "warn",
// "error", "dpanic", "panic", and "fatal").
func (lvl *AtomicLevel) UnmarshalText(text []byte) error {
if lvl.l == nil {
lvl.l = &atomic.Int32{}
}
var l zapcore.Level
if err := l.UnmarshalText(text); err != nil {
return err
}
lvl.SetLevel(l)
return nil
}
// MarshalText marshals the AtomicLevel to a byte slice. It uses the same
// text representation as the static zapcore.Levels ("debug", "info", "warn",
// "error", "dpanic", "panic", and "fatal").
func (lvl AtomicLevel) MarshalText() (text []byte, err error) {
return lvl.Level().MarshalText()
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"fmt"
"io/ioutil"
"os"
"runtime"
"strings"
"time"
"go.uber.org/zap/zapcore"
)
// A Logger provides fast, leveled, structured logging. All methods are safe
// for concurrent use.
//
// The Logger is designed for contexts in which every microsecond and every
// allocation matters, so its API intentionally favors performance and type
// safety over brevity. For most applications, the SugaredLogger strikes a
// better balance between performance and ergonomics.
type Logger struct {
core zapcore.Core
development bool
name string
errorOutput zapcore.WriteSyncer
addCaller bool
addStack zapcore.LevelEnabler
callerSkip int
}
// New constructs a new Logger from the provided zapcore.Core and Options. If
// the passed zapcore.Core is nil, it falls back to using a no-op
// implementation.
//
// This is the most flexible way to construct a Logger, but also the most
// verbose. For typical use cases, the highly-opinionated presets
// (NewProduction, NewDevelopment, and NewExample) or the Config struct are
// more convenient.
//
// For sample code, see the package-level AdvancedConfiguration example.
func New(core zapcore.Core, options ...Option) *Logger {
if core == nil {
return NewNop()
}
log := &Logger{
core: core,
errorOutput: zapcore.Lock(os.Stderr),
addStack: zapcore.FatalLevel + 1,
}
return log.WithOptions(options...)
}
// NewNop returns a no-op Logger. It never writes out logs or internal errors,
// and it never runs user-defined hooks.
//
// Using WithOptions to replace the Core or error output of a no-op Logger can
// re-enable logging.
func NewNop() *Logger {
return &Logger{
core: zapcore.NewNopCore(),
errorOutput: zapcore.AddSync(ioutil.Discard),
addStack: zapcore.FatalLevel + 1,
}
}
// NewProduction builds a sensible production Logger that writes InfoLevel and
// above logs to standard error as JSON.
//
// It's a shortcut for NewProductionConfig().Build(...Option).
func NewProduction(options ...Option) (*Logger, error) {
return NewProductionConfig().Build(options...)
}
// NewDevelopment builds a development Logger that writes DebugLevel and above
// logs to standard error in a human-friendly format.
//
// It's a shortcut for NewDevelopmentConfig().Build(...Option).
func NewDevelopment(options ...Option) (*Logger, error) {
return NewDevelopmentConfig().Build(options...)
}
// NewExample builds a Logger that's designed for use in zap's testable
// examples. It writes DebugLevel and above logs to standard out as JSON, but
// omits the timestamp and calling function to keep example output
// short and deterministic.
func NewExample(options ...Option) *Logger {
encoderCfg := zapcore.EncoderConfig{
MessageKey: "msg",
LevelKey: "level",
NameKey: "logger",
EncodeLevel: zapcore.LowercaseLevelEncoder,
EncodeTime: zapcore.ISO8601TimeEncoder,
EncodeDuration: zapcore.StringDurationEncoder,
}
core := zapcore.NewCore(zapcore.NewJSONEncoder(encoderCfg), os.Stdout, DebugLevel)
return New(core).WithOptions(options...)
}
// Sugar wraps the Logger to provide a more ergonomic, but slightly slower,
// API. Sugaring a Logger is quite inexpensive, so it's reasonable for a
// single application to use both Loggers and SugaredLoggers, converting
// between them on the boundaries of performance-sensitive code.
func (log *Logger) Sugar() *SugaredLogger {
core := log.clone()
core.callerSkip += 2
return &SugaredLogger{core}
}
// Named adds a new path segment to the logger's name. Segments are joined by
// periods. By default, Loggers are unnamed.
func (log *Logger) Named(s string) *Logger {
if s == "" {
return log
}
l := log.clone()
if log.name == "" {
l.name = s
} else {
l.name = strings.Join([]string{l.name, s}, ".")
}
return l
}
// WithOptions clones the current Logger, applies the supplied Options, and
// returns the resulting Logger. It's safe to use concurrently.
func (log *Logger) WithOptions(opts ...Option) *Logger {
c := log.clone()
for _, opt := range opts {
opt.apply(c)
}
return c
}
// With creates a child logger and adds structured context to it. Fields added
// to the child don't affect the parent, and vice versa.
func (log *Logger) With(fields ...Field) *Logger {
if len(fields) == 0 {
return log
}
l := log.clone()
l.core = l.core.With(fields)
return l
}
// Check returns a CheckedEntry if logging a message at the specified level
// is enabled. It's a completely optional optimization; in high-performance
// applications, Check can help avoid allocating a slice to hold fields.
func (log *Logger) Check(lvl zapcore.Level, msg string) *zapcore.CheckedEntry {
return log.check(lvl, msg)
}
// Debug logs a message at DebugLevel. The message includes any fields passed
// at the log site, as well as any fields accumulated on the logger.
func (log *Logger) Debug(msg string, fields ...Field) {
if ce := log.check(DebugLevel, msg); ce != nil {
ce.Write(fields...)
}
}
// Info logs a message at InfoLevel. The message includes any fields passed
// at the log site, as well as any fields accumulated on the logger.
func (log *Logger) Info(msg string, fields ...Field) {
if ce := log.check(InfoLevel, msg); ce != nil {
ce.Write(fields...)
}
}
// Warn logs a message at WarnLevel. The message includes any fields passed
// at the log site, as well as any fields accumulated on the logger.
func (log *Logger) Warn(msg string, fields ...Field) {
if ce := log.check(WarnLevel, msg); ce != nil {
ce.Write(fields...)
}
}
// Error logs a message at ErrorLevel. The message includes any fields passed
// at the log site, as well as any fields accumulated on the logger.
func (log *Logger) Error(msg string, fields ...Field) {
if ce := log.check(ErrorLevel, msg); ce != nil {
ce.Write(fields...)
}
}
// DPanic logs a message at DPanicLevel. The message includes any fields
// passed at the log site, as well as any fields accumulated on the logger.
//
// If the logger is in development mode, it then panics (DPanic means
// "development panic"). This is useful for catching errors that are
// recoverable, but shouldn't ever happen.
func (log *Logger) DPanic(msg string, fields ...Field) {
if ce := log.check(DPanicLevel, msg); ce != nil {
ce.Write(fields...)
}
}
// Panic logs a message at PanicLevel. The message includes any fields passed
// at the log site, as well as any fields accumulated on the logger.
//
// The logger then panics, even if logging at PanicLevel is disabled.
func (log *Logger) Panic(msg string, fields ...Field) {
if ce := log.check(PanicLevel, msg); ce != nil {
ce.Write(fields...)
}
}
// Fatal logs a message at FatalLevel. The message includes any fields passed
// at the log site, as well as any fields accumulated on the logger.
//
// The logger then calls os.Exit(1), even if logging at FatalLevel is
// disabled.
func (log *Logger) Fatal(msg string, fields ...Field) {
if ce := log.check(FatalLevel, msg); ce != nil {
ce.Write(fields...)
}
}
// Sync calls the underlying Core's Sync method, flushing any buffered log
// entries. Applications should take care to call Sync before exiting.
func (log *Logger) Sync() error {
return log.core.Sync()
}
// Core returns the Logger's underlying zapcore.Core.
func (log *Logger) Core() zapcore.Core {
return log.core
}
func (log *Logger) clone() *Logger {
copy := *log
return &copy
}
func (log *Logger) check(lvl zapcore.Level, msg string) *zapcore.CheckedEntry {
// check must always be called directly by a method in the Logger interface
// (e.g., Check, Info, Fatal).
const callerSkipOffset = 2
// Create basic checked entry thru the core; this will be non-nil if the
// log message will actually be written somewhere.
ent := zapcore.Entry{
LoggerName: log.name,
Time: time.Now(),
Level: lvl,
Message: msg,
}
ce := log.core.Check(ent, nil)
willWrite := ce != nil
// Set up any required terminal behavior.
switch ent.Level {
case zapcore.PanicLevel:
ce = ce.Should(ent, zapcore.WriteThenPanic)
case zapcore.FatalLevel:
ce = ce.Should(ent, zapcore.WriteThenFatal)
case zapcore.DPanicLevel:
if log.development {
ce = ce.Should(ent, zapcore.WriteThenPanic)
}
}
// Only do further annotation if we're going to write this message; checked
// entries that exist only for terminal behavior don't benefit from
// annotation.
if !willWrite {
return ce
}
// Thread the error output through to the CheckedEntry.
ce.ErrorOutput = log.errorOutput
if log.addCaller {
ce.Entry.Caller = zapcore.NewEntryCaller(runtime.Caller(log.callerSkip + callerSkipOffset))
if !ce.Entry.Caller.Defined {
fmt.Fprintf(log.errorOutput, "%v Logger.check error: failed to get caller\n", time.Now().UTC())
log.errorOutput.Sync()
}
}
if log.addStack.Enabled(ce.Entry.Level) {
ce.Entry.Stack = Stack("").String
}
return ce
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import "go.uber.org/zap/zapcore"
// An Option configures a Logger.
type Option interface {
apply(*Logger)
}
// optionFunc wraps a func so it satisfies the Option interface.
type optionFunc func(*Logger)
func (f optionFunc) apply(log *Logger) {
f(log)
}
// WrapCore wraps or replaces the Logger's underlying zapcore.Core.
func WrapCore(f func(zapcore.Core) zapcore.Core) Option {
return optionFunc(func(log *Logger) {
log.core = f(log.core)
})
}
// Hooks registers functions which will be called each time the Logger writes
// out an Entry. Repeated use of Hooks is additive.
//
// Hooks are useful for simple side effects, like capturing metrics for the
// number of emitted logs. More complex side effects, including anything that
// requires access to the Entry's structured fields, should be implemented as
// a zapcore.Core instead. See zapcore.RegisterHooks for details.
func Hooks(hooks ...func(zapcore.Entry) error) Option {
return optionFunc(func(log *Logger) {
log.core = zapcore.RegisterHooks(log.core, hooks...)
})
}
// Fields adds fields to the Logger.
func Fields(fs ...Field) Option {
return optionFunc(func(log *Logger) {
log.core = log.core.With(fs)
})
}
// ErrorOutput sets the destination for errors generated by the Logger. Note
// that this option only affects internal errors; for sample code that sends
// error-level logs to a different location from info- and debug-level logs,
// see the package-level AdvancedConfiguration example.
//
// The supplied WriteSyncer must be safe for concurrent use. The Open and
// zapcore.Lock functions are the simplest ways to protect files with a mutex.
func ErrorOutput(w zapcore.WriteSyncer) Option {
return optionFunc(func(log *Logger) {
log.errorOutput = w
})
}
// Development puts the logger in development mode, which makes DPanic-level
// logs panic instead of simply logging an error.
func Development() Option {
return optionFunc(func(log *Logger) {
log.development = true
})
}
// AddCaller configures the Logger to annotate each message with the filename
// and line number of zap's caller.
func AddCaller() Option {
return optionFunc(func(log *Logger) {
log.addCaller = true
})
}
// AddCallerSkip increases the number of callers skipped by caller annotation
// (as enabled by the AddCaller option). When building wrappers around the
// Logger and SugaredLogger, supplying this Option prevents zap from always
// reporting the wrapper code as the caller.
func AddCallerSkip(skip int) Option {
return optionFunc(func(log *Logger) {
log.callerSkip += skip
})
}
// AddStacktrace configures the Logger to record a stack trace for all messages at
// or above a given level.
func AddStacktrace(lvl zapcore.LevelEnabler) Option {
return optionFunc(func(log *Logger) {
log.addStack = lvl
})
}

161
build/manifest/vendor/go.uber.org/zap/sink.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"errors"
"fmt"
"io"
"net/url"
"os"
"strings"
"sync"
"go.uber.org/zap/zapcore"
)
const schemeFile = "file"
var (
_sinkMutex sync.RWMutex
_sinkFactories map[string]func(*url.URL) (Sink, error) // keyed by scheme
)
func init() {
resetSinkRegistry()
}
func resetSinkRegistry() {
_sinkMutex.Lock()
defer _sinkMutex.Unlock()
_sinkFactories = map[string]func(*url.URL) (Sink, error){
schemeFile: newFileSink,
}
}
// Sink defines the interface to write to and close logger destinations.
type Sink interface {
zapcore.WriteSyncer
io.Closer
}
type nopCloserSink struct{ zapcore.WriteSyncer }
func (nopCloserSink) Close() error { return nil }
type errSinkNotFound struct {
scheme string
}
func (e *errSinkNotFound) Error() string {
return fmt.Sprintf("no sink found for scheme %q", e.scheme)
}
// RegisterSink registers a user-supplied factory for all sinks with a
// particular scheme.
//
// All schemes must be ASCII, valid under section 3.1 of RFC 3986
// (https://tools.ietf.org/html/rfc3986#section-3.1), and must not already
// have a factory registered. Zap automatically registers a factory for the
// "file" scheme.
func RegisterSink(scheme string, factory func(*url.URL) (Sink, error)) error {
_sinkMutex.Lock()
defer _sinkMutex.Unlock()
if scheme == "" {
return errors.New("can't register a sink factory for empty string")
}
normalized, err := normalizeScheme(scheme)
if err != nil {
return fmt.Errorf("%q is not a valid scheme: %v", scheme, err)
}
if _, ok := _sinkFactories[normalized]; ok {
return fmt.Errorf("sink factory already registered for scheme %q", normalized)
}
_sinkFactories[normalized] = factory
return nil
}
func newSink(rawURL string) (Sink, error) {
u, err := url.Parse(rawURL)
if err != nil {
return nil, fmt.Errorf("can't parse %q as a URL: %v", rawURL, err)
}
if u.Scheme == "" {
u.Scheme = schemeFile
}
_sinkMutex.RLock()
factory, ok := _sinkFactories[u.Scheme]
_sinkMutex.RUnlock()
if !ok {
return nil, &errSinkNotFound{u.Scheme}
}
return factory(u)
}
func newFileSink(u *url.URL) (Sink, error) {
if u.User != nil {
return nil, fmt.Errorf("user and password not allowed with file URLs: got %v", u)
}
if u.Fragment != "" {
return nil, fmt.Errorf("fragments not allowed with file URLs: got %v", u)
}
if u.RawQuery != "" {
return nil, fmt.Errorf("query parameters not allowed with file URLs: got %v", u)
}
// Error messages are better if we check hostname and port separately.
if u.Port() != "" {
return nil, fmt.Errorf("ports not allowed with file URLs: got %v", u)
}
if hn := u.Hostname(); hn != "" && hn != "localhost" {
return nil, fmt.Errorf("file URLs must leave host empty or use localhost: got %v", u)
}
switch u.Path {
case "stdout":
return nopCloserSink{os.Stdout}, nil
case "stderr":
return nopCloserSink{os.Stderr}, nil
}
return os.OpenFile(u.Path, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644)
}
func normalizeScheme(s string) (string, error) {
// https://tools.ietf.org/html/rfc3986#section-3.1
s = strings.ToLower(s)
if first := s[0]; 'a' > first || 'z' < first {
return "", errors.New("must start with a letter")
}
for i := 1; i < len(s); i++ { // iterate over bytes, not runes
c := s[i]
switch {
case 'a' <= c && c <= 'z':
continue
case '0' <= c && c <= '9':
continue
case c == '.' || c == '+' || c == '-':
continue
}
return "", fmt.Errorf("may not contain %q", c)
}
return s, nil
}

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build/manifest/vendor/go.uber.org/zap/stacktrace.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"runtime"
"strings"
"sync"
"go.uber.org/zap/internal/bufferpool"
)
const _zapPackage = "go.uber.org/zap"
var (
_stacktracePool = sync.Pool{
New: func() interface{} {
return newProgramCounters(64)
},
}
// We add "." and "/" suffixes to the package name to ensure we only match
// the exact package and not any package with the same prefix.
_zapStacktracePrefixes = addPrefix(_zapPackage, ".", "/")
_zapStacktraceVendorContains = addPrefix("/vendor/", _zapStacktracePrefixes...)
)
func takeStacktrace() string {
buffer := bufferpool.Get()
defer buffer.Free()
programCounters := _stacktracePool.Get().(*programCounters)
defer _stacktracePool.Put(programCounters)
var numFrames int
for {
// Skip the call to runtime.Counters and takeStacktrace so that the
// program counters start at the caller of takeStacktrace.
numFrames = runtime.Callers(2, programCounters.pcs)
if numFrames < len(programCounters.pcs) {
break
}
// Don't put the too-short counter slice back into the pool; this lets
// the pool adjust if we consistently take deep stacktraces.
programCounters = newProgramCounters(len(programCounters.pcs) * 2)
}
i := 0
skipZapFrames := true // skip all consecutive zap frames at the beginning.
frames := runtime.CallersFrames(programCounters.pcs[:numFrames])
// Note: On the last iteration, frames.Next() returns false, with a valid
// frame, but we ignore this frame. The last frame is a a runtime frame which
// adds noise, since it's only either runtime.main or runtime.goexit.
for frame, more := frames.Next(); more; frame, more = frames.Next() {
if skipZapFrames && isZapFrame(frame.Function) {
continue
} else {
skipZapFrames = false
}
if i != 0 {
buffer.AppendByte('\n')
}
i++
buffer.AppendString(frame.Function)
buffer.AppendByte('\n')
buffer.AppendByte('\t')
buffer.AppendString(frame.File)
buffer.AppendByte(':')
buffer.AppendInt(int64(frame.Line))
}
return buffer.String()
}
func isZapFrame(function string) bool {
for _, prefix := range _zapStacktracePrefixes {
if strings.HasPrefix(function, prefix) {
return true
}
}
// We can't use a prefix match here since the location of the vendor
// directory affects the prefix. Instead we do a contains match.
for _, contains := range _zapStacktraceVendorContains {
if strings.Contains(function, contains) {
return true
}
}
return false
}
type programCounters struct {
pcs []uintptr
}
func newProgramCounters(size int) *programCounters {
return &programCounters{make([]uintptr, size)}
}
func addPrefix(prefix string, ss ...string) []string {
withPrefix := make([]string, len(ss))
for i, s := range ss {
withPrefix[i] = prefix + s
}
return withPrefix
}

304
build/manifest/vendor/go.uber.org/zap/sugar.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"fmt"
"go.uber.org/zap/zapcore"
"go.uber.org/multierr"
)
const (
_oddNumberErrMsg = "Ignored key without a value."
_nonStringKeyErrMsg = "Ignored key-value pairs with non-string keys."
)
// A SugaredLogger wraps the base Logger functionality in a slower, but less
// verbose, API. Any Logger can be converted to a SugaredLogger with its Sugar
// method.
//
// Unlike the Logger, the SugaredLogger doesn't insist on structured logging.
// For each log level, it exposes three methods: one for loosely-typed
// structured logging, one for println-style formatting, and one for
// printf-style formatting. For example, SugaredLoggers can produce InfoLevel
// output with Infow ("info with" structured context), Info, or Infof.
type SugaredLogger struct {
base *Logger
}
// Desugar unwraps a SugaredLogger, exposing the original Logger. Desugaring
// is quite inexpensive, so it's reasonable for a single application to use
// both Loggers and SugaredLoggers, converting between them on the boundaries
// of performance-sensitive code.
func (s *SugaredLogger) Desugar() *Logger {
base := s.base.clone()
base.callerSkip -= 2
return base
}
// Named adds a sub-scope to the logger's name. See Logger.Named for details.
func (s *SugaredLogger) Named(name string) *SugaredLogger {
return &SugaredLogger{base: s.base.Named(name)}
}
// With adds a variadic number of fields to the logging context. It accepts a
// mix of strongly-typed Field objects and loosely-typed key-value pairs. When
// processing pairs, the first element of the pair is used as the field key
// and the second as the field value.
//
// For example,
// sugaredLogger.With(
// "hello", "world",
// "failure", errors.New("oh no"),
// Stack(),
// "count", 42,
// "user", User{Name: "alice"},
// )
// is the equivalent of
// unsugared.With(
// String("hello", "world"),
// String("failure", "oh no"),
// Stack(),
// Int("count", 42),
// Object("user", User{Name: "alice"}),
// )
//
// Note that the keys in key-value pairs should be strings. In development,
// passing a non-string key panics. In production, the logger is more
// forgiving: a separate error is logged, but the key-value pair is skipped
// and execution continues. Passing an orphaned key triggers similar behavior:
// panics in development and errors in production.
func (s *SugaredLogger) With(args ...interface{}) *SugaredLogger {
return &SugaredLogger{base: s.base.With(s.sweetenFields(args)...)}
}
// Debug uses fmt.Sprint to construct and log a message.
func (s *SugaredLogger) Debug(args ...interface{}) {
s.log(DebugLevel, "", args, nil)
}
// Info uses fmt.Sprint to construct and log a message.
func (s *SugaredLogger) Info(args ...interface{}) {
s.log(InfoLevel, "", args, nil)
}
// Warn uses fmt.Sprint to construct and log a message.
func (s *SugaredLogger) Warn(args ...interface{}) {
s.log(WarnLevel, "", args, nil)
}
// Error uses fmt.Sprint to construct and log a message.
func (s *SugaredLogger) Error(args ...interface{}) {
s.log(ErrorLevel, "", args, nil)
}
// DPanic uses fmt.Sprint to construct and log a message. In development, the
// logger then panics. (See DPanicLevel for details.)
func (s *SugaredLogger) DPanic(args ...interface{}) {
s.log(DPanicLevel, "", args, nil)
}
// Panic uses fmt.Sprint to construct and log a message, then panics.
func (s *SugaredLogger) Panic(args ...interface{}) {
s.log(PanicLevel, "", args, nil)
}
// Fatal uses fmt.Sprint to construct and log a message, then calls os.Exit.
func (s *SugaredLogger) Fatal(args ...interface{}) {
s.log(FatalLevel, "", args, nil)
}
// Debugf uses fmt.Sprintf to log a templated message.
func (s *SugaredLogger) Debugf(template string, args ...interface{}) {
s.log(DebugLevel, template, args, nil)
}
// Infof uses fmt.Sprintf to log a templated message.
func (s *SugaredLogger) Infof(template string, args ...interface{}) {
s.log(InfoLevel, template, args, nil)
}
// Warnf uses fmt.Sprintf to log a templated message.
func (s *SugaredLogger) Warnf(template string, args ...interface{}) {
s.log(WarnLevel, template, args, nil)
}
// Errorf uses fmt.Sprintf to log a templated message.
func (s *SugaredLogger) Errorf(template string, args ...interface{}) {
s.log(ErrorLevel, template, args, nil)
}
// DPanicf uses fmt.Sprintf to log a templated message. In development, the
// logger then panics. (See DPanicLevel for details.)
func (s *SugaredLogger) DPanicf(template string, args ...interface{}) {
s.log(DPanicLevel, template, args, nil)
}
// Panicf uses fmt.Sprintf to log a templated message, then panics.
func (s *SugaredLogger) Panicf(template string, args ...interface{}) {
s.log(PanicLevel, template, args, nil)
}
// Fatalf uses fmt.Sprintf to log a templated message, then calls os.Exit.
func (s *SugaredLogger) Fatalf(template string, args ...interface{}) {
s.log(FatalLevel, template, args, nil)
}
// Debugw logs a message with some additional context. The variadic key-value
// pairs are treated as they are in With.
//
// When debug-level logging is disabled, this is much faster than
// s.With(keysAndValues).Debug(msg)
func (s *SugaredLogger) Debugw(msg string, keysAndValues ...interface{}) {
s.log(DebugLevel, msg, nil, keysAndValues)
}
// Infow logs a message with some additional context. The variadic key-value
// pairs are treated as they are in With.
func (s *SugaredLogger) Infow(msg string, keysAndValues ...interface{}) {
s.log(InfoLevel, msg, nil, keysAndValues)
}
// Warnw logs a message with some additional context. The variadic key-value
// pairs are treated as they are in With.
func (s *SugaredLogger) Warnw(msg string, keysAndValues ...interface{}) {
s.log(WarnLevel, msg, nil, keysAndValues)
}
// Errorw logs a message with some additional context. The variadic key-value
// pairs are treated as they are in With.
func (s *SugaredLogger) Errorw(msg string, keysAndValues ...interface{}) {
s.log(ErrorLevel, msg, nil, keysAndValues)
}
// DPanicw logs a message with some additional context. In development, the
// logger then panics. (See DPanicLevel for details.) The variadic key-value
// pairs are treated as they are in With.
func (s *SugaredLogger) DPanicw(msg string, keysAndValues ...interface{}) {
s.log(DPanicLevel, msg, nil, keysAndValues)
}
// Panicw logs a message with some additional context, then panics. The
// variadic key-value pairs are treated as they are in With.
func (s *SugaredLogger) Panicw(msg string, keysAndValues ...interface{}) {
s.log(PanicLevel, msg, nil, keysAndValues)
}
// Fatalw logs a message with some additional context, then calls os.Exit. The
// variadic key-value pairs are treated as they are in With.
func (s *SugaredLogger) Fatalw(msg string, keysAndValues ...interface{}) {
s.log(FatalLevel, msg, nil, keysAndValues)
}
// Sync flushes any buffered log entries.
func (s *SugaredLogger) Sync() error {
return s.base.Sync()
}
func (s *SugaredLogger) log(lvl zapcore.Level, template string, fmtArgs []interface{}, context []interface{}) {
// If logging at this level is completely disabled, skip the overhead of
// string formatting.
if lvl < DPanicLevel && !s.base.Core().Enabled(lvl) {
return
}
// Format with Sprint, Sprintf, or neither.
msg := template
if msg == "" && len(fmtArgs) > 0 {
msg = fmt.Sprint(fmtArgs...)
} else if msg != "" && len(fmtArgs) > 0 {
msg = fmt.Sprintf(template, fmtArgs...)
}
if ce := s.base.Check(lvl, msg); ce != nil {
ce.Write(s.sweetenFields(context)...)
}
}
func (s *SugaredLogger) sweetenFields(args []interface{}) []Field {
if len(args) == 0 {
return nil
}
// Allocate enough space for the worst case; if users pass only structured
// fields, we shouldn't penalize them with extra allocations.
fields := make([]Field, 0, len(args))
var invalid invalidPairs
for i := 0; i < len(args); {
// This is a strongly-typed field. Consume it and move on.
if f, ok := args[i].(Field); ok {
fields = append(fields, f)
i++
continue
}
// Make sure this element isn't a dangling key.
if i == len(args)-1 {
s.base.DPanic(_oddNumberErrMsg, Any("ignored", args[i]))
break
}
// Consume this value and the next, treating them as a key-value pair. If the
// key isn't a string, add this pair to the slice of invalid pairs.
key, val := args[i], args[i+1]
if keyStr, ok := key.(string); !ok {
// Subsequent errors are likely, so allocate once up front.
if cap(invalid) == 0 {
invalid = make(invalidPairs, 0, len(args)/2)
}
invalid = append(invalid, invalidPair{i, key, val})
} else {
fields = append(fields, Any(keyStr, val))
}
i += 2
}
// If we encountered any invalid key-value pairs, log an error.
if len(invalid) > 0 {
s.base.DPanic(_nonStringKeyErrMsg, Array("invalid", invalid))
}
return fields
}
type invalidPair struct {
position int
key, value interface{}
}
func (p invalidPair) MarshalLogObject(enc zapcore.ObjectEncoder) error {
enc.AddInt64("position", int64(p.position))
Any("key", p.key).AddTo(enc)
Any("value", p.value).AddTo(enc)
return nil
}
type invalidPairs []invalidPair
func (ps invalidPairs) MarshalLogArray(enc zapcore.ArrayEncoder) error {
var err error
for i := range ps {
err = multierr.Append(err, enc.AppendObject(ps[i]))
}
return err
}

27
build/manifest/vendor/go.uber.org/zap/time.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import "time"
func timeToMillis(t time.Time) int64 {
return t.UnixNano() / int64(time.Millisecond)
}

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build/manifest/vendor/go.uber.org/zap/writer.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zap
import (
"fmt"
"io"
"io/ioutil"
"go.uber.org/zap/zapcore"
"go.uber.org/multierr"
)
// Open is a high-level wrapper that takes a variadic number of URLs, opens or
// creates each of the specified resources, and combines them into a locked
// WriteSyncer. It also returns any error encountered and a function to close
// any opened files.
//
// Passing no URLs returns a no-op WriteSyncer. Zap handles URLs without a
// scheme and URLs with the "file" scheme. Third-party code may register
// factories for other schemes using RegisterSink.
//
// URLs with the "file" scheme must use absolute paths on the local
// filesystem. No user, password, port, fragments, or query parameters are
// allowed, and the hostname must be empty or "localhost".
//
// Since it's common to write logs to the local filesystem, URLs without a
// scheme (e.g., "/var/log/foo.log") are treated as local file paths. Without
// a scheme, the special paths "stdout" and "stderr" are interpreted as
// os.Stdout and os.Stderr. When specified without a scheme, relative file
// paths also work.
func Open(paths ...string) (zapcore.WriteSyncer, func(), error) {
writers, close, err := open(paths)
if err != nil {
return nil, nil, err
}
writer := CombineWriteSyncers(writers...)
return writer, close, nil
}
func open(paths []string) ([]zapcore.WriteSyncer, func(), error) {
writers := make([]zapcore.WriteSyncer, 0, len(paths))
closers := make([]io.Closer, 0, len(paths))
close := func() {
for _, c := range closers {
c.Close()
}
}
var openErr error
for _, path := range paths {
sink, err := newSink(path)
if err != nil {
openErr = multierr.Append(openErr, fmt.Errorf("couldn't open sink %q: %v", path, err))
continue
}
writers = append(writers, sink)
closers = append(closers, sink)
}
if openErr != nil {
close()
return writers, nil, openErr
}
return writers, close, nil
}
// CombineWriteSyncers is a utility that combines multiple WriteSyncers into a
// single, locked WriteSyncer. If no inputs are supplied, it returns a no-op
// WriteSyncer.
//
// It's provided purely as a convenience; the result is no different from
// using zapcore.NewMultiWriteSyncer and zapcore.Lock individually.
func CombineWriteSyncers(writers ...zapcore.WriteSyncer) zapcore.WriteSyncer {
if len(writers) == 0 {
return zapcore.AddSync(ioutil.Discard)
}
return zapcore.Lock(zapcore.NewMultiWriteSyncer(writers...))
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"fmt"
"sync"
"go.uber.org/zap/buffer"
"go.uber.org/zap/internal/bufferpool"
)
var _sliceEncoderPool = sync.Pool{
New: func() interface{} {
return &sliceArrayEncoder{elems: make([]interface{}, 0, 2)}
},
}
func getSliceEncoder() *sliceArrayEncoder {
return _sliceEncoderPool.Get().(*sliceArrayEncoder)
}
func putSliceEncoder(e *sliceArrayEncoder) {
e.elems = e.elems[:0]
_sliceEncoderPool.Put(e)
}
type consoleEncoder struct {
*jsonEncoder
}
// NewConsoleEncoder creates an encoder whose output is designed for human -
// rather than machine - consumption. It serializes the core log entry data
// (message, level, timestamp, etc.) in a plain-text format and leaves the
// structured context as JSON.
//
// Note that although the console encoder doesn't use the keys specified in the
// encoder configuration, it will omit any element whose key is set to the empty
// string.
func NewConsoleEncoder(cfg EncoderConfig) Encoder {
return consoleEncoder{newJSONEncoder(cfg, true)}
}
func (c consoleEncoder) Clone() Encoder {
return consoleEncoder{c.jsonEncoder.Clone().(*jsonEncoder)}
}
func (c consoleEncoder) EncodeEntry(ent Entry, fields []Field) (*buffer.Buffer, error) {
line := bufferpool.Get()
// We don't want the entry's metadata to be quoted and escaped (if it's
// encoded as strings), which means that we can't use the JSON encoder. The
// simplest option is to use the memory encoder and fmt.Fprint.
//
// If this ever becomes a performance bottleneck, we can implement
// ArrayEncoder for our plain-text format.
arr := getSliceEncoder()
if c.TimeKey != "" && c.EncodeTime != nil {
c.EncodeTime(ent.Time, arr)
}
if c.LevelKey != "" && c.EncodeLevel != nil {
c.EncodeLevel(ent.Level, arr)
}
if ent.LoggerName != "" && c.NameKey != "" {
nameEncoder := c.EncodeName
if nameEncoder == nil {
// Fall back to FullNameEncoder for backward compatibility.
nameEncoder = FullNameEncoder
}
nameEncoder(ent.LoggerName, arr)
}
if ent.Caller.Defined && c.CallerKey != "" && c.EncodeCaller != nil {
c.EncodeCaller(ent.Caller, arr)
}
for i := range arr.elems {
if i > 0 {
line.AppendByte('\t')
}
fmt.Fprint(line, arr.elems[i])
}
putSliceEncoder(arr)
// Add the message itself.
if c.MessageKey != "" {
c.addTabIfNecessary(line)
line.AppendString(ent.Message)
}
// Add any structured context.
c.writeContext(line, fields)
// If there's no stacktrace key, honor that; this allows users to force
// single-line output.
if ent.Stack != "" && c.StacktraceKey != "" {
line.AppendByte('\n')
line.AppendString(ent.Stack)
}
if c.LineEnding != "" {
line.AppendString(c.LineEnding)
} else {
line.AppendString(DefaultLineEnding)
}
return line, nil
}
func (c consoleEncoder) writeContext(line *buffer.Buffer, extra []Field) {
context := c.jsonEncoder.Clone().(*jsonEncoder)
defer context.buf.Free()
addFields(context, extra)
context.closeOpenNamespaces()
if context.buf.Len() == 0 {
return
}
c.addTabIfNecessary(line)
line.AppendByte('{')
line.Write(context.buf.Bytes())
line.AppendByte('}')
}
func (c consoleEncoder) addTabIfNecessary(line *buffer.Buffer) {
if line.Len() > 0 {
line.AppendByte('\t')
}
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
// Core is a minimal, fast logger interface. It's designed for library authors
// to wrap in a more user-friendly API.
type Core interface {
LevelEnabler
// With adds structured context to the Core.
With([]Field) Core
// Check determines whether the supplied Entry should be logged (using the
// embedded LevelEnabler and possibly some extra logic). If the entry
// should be logged, the Core adds itself to the CheckedEntry and returns
// the result.
//
// Callers must use Check before calling Write.
Check(Entry, *CheckedEntry) *CheckedEntry
// Write serializes the Entry and any Fields supplied at the log site and
// writes them to their destination.
//
// If called, Write should always log the Entry and Fields; it should not
// replicate the logic of Check.
Write(Entry, []Field) error
// Sync flushes buffered logs (if any).
Sync() error
}
type nopCore struct{}
// NewNopCore returns a no-op Core.
func NewNopCore() Core { return nopCore{} }
func (nopCore) Enabled(Level) bool { return false }
func (n nopCore) With([]Field) Core { return n }
func (nopCore) Check(_ Entry, ce *CheckedEntry) *CheckedEntry { return ce }
func (nopCore) Write(Entry, []Field) error { return nil }
func (nopCore) Sync() error { return nil }
// NewCore creates a Core that writes logs to a WriteSyncer.
func NewCore(enc Encoder, ws WriteSyncer, enab LevelEnabler) Core {
return &ioCore{
LevelEnabler: enab,
enc: enc,
out: ws,
}
}
type ioCore struct {
LevelEnabler
enc Encoder
out WriteSyncer
}
func (c *ioCore) With(fields []Field) Core {
clone := c.clone()
addFields(clone.enc, fields)
return clone
}
func (c *ioCore) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
if c.Enabled(ent.Level) {
return ce.AddCore(ent, c)
}
return ce
}
func (c *ioCore) Write(ent Entry, fields []Field) error {
buf, err := c.enc.EncodeEntry(ent, fields)
if err != nil {
return err
}
_, err = c.out.Write(buf.Bytes())
buf.Free()
if err != nil {
return err
}
if ent.Level > ErrorLevel {
// Since we may be crashing the program, sync the output. Ignore Sync
// errors, pending a clean solution to issue #370.
c.Sync()
}
return nil
}
func (c *ioCore) Sync() error {
return c.out.Sync()
}
func (c *ioCore) clone() *ioCore {
return &ioCore{
LevelEnabler: c.LevelEnabler,
enc: c.enc.Clone(),
out: c.out,
}
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package zapcore defines and implements the low-level interfaces upon which
// zap is built. By providing alternate implementations of these interfaces,
// external packages can extend zap's capabilities.
package zapcore // import "go.uber.org/zap/zapcore"

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"time"
"go.uber.org/zap/buffer"
)
// DefaultLineEnding defines the default line ending when writing logs.
// Alternate line endings specified in EncoderConfig can override this
// behavior.
const DefaultLineEnding = "\n"
// A LevelEncoder serializes a Level to a primitive type.
type LevelEncoder func(Level, PrimitiveArrayEncoder)
// LowercaseLevelEncoder serializes a Level to a lowercase string. For example,
// InfoLevel is serialized to "info".
func LowercaseLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
enc.AppendString(l.String())
}
// LowercaseColorLevelEncoder serializes a Level to a lowercase string and adds coloring.
// For example, InfoLevel is serialized to "info" and colored blue.
func LowercaseColorLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
s, ok := _levelToLowercaseColorString[l]
if !ok {
s = _unknownLevelColor.Add(l.String())
}
enc.AppendString(s)
}
// CapitalLevelEncoder serializes a Level to an all-caps string. For example,
// InfoLevel is serialized to "INFO".
func CapitalLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
enc.AppendString(l.CapitalString())
}
// CapitalColorLevelEncoder serializes a Level to an all-caps string and adds color.
// For example, InfoLevel is serialized to "INFO" and colored blue.
func CapitalColorLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
s, ok := _levelToCapitalColorString[l]
if !ok {
s = _unknownLevelColor.Add(l.CapitalString())
}
enc.AppendString(s)
}
// UnmarshalText unmarshals text to a LevelEncoder. "capital" is unmarshaled to
// CapitalLevelEncoder, "coloredCapital" is unmarshaled to CapitalColorLevelEncoder,
// "colored" is unmarshaled to LowercaseColorLevelEncoder, and anything else
// is unmarshaled to LowercaseLevelEncoder.
func (e *LevelEncoder) UnmarshalText(text []byte) error {
switch string(text) {
case "capital":
*e = CapitalLevelEncoder
case "capitalColor":
*e = CapitalColorLevelEncoder
case "color":
*e = LowercaseColorLevelEncoder
default:
*e = LowercaseLevelEncoder
}
return nil
}
// A TimeEncoder serializes a time.Time to a primitive type.
type TimeEncoder func(time.Time, PrimitiveArrayEncoder)
// EpochTimeEncoder serializes a time.Time to a floating-point number of seconds
// since the Unix epoch.
func EpochTimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
nanos := t.UnixNano()
sec := float64(nanos) / float64(time.Second)
enc.AppendFloat64(sec)
}
// EpochMillisTimeEncoder serializes a time.Time to a floating-point number of
// milliseconds since the Unix epoch.
func EpochMillisTimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
nanos := t.UnixNano()
millis := float64(nanos) / float64(time.Millisecond)
enc.AppendFloat64(millis)
}
// EpochNanosTimeEncoder serializes a time.Time to an integer number of
// nanoseconds since the Unix epoch.
func EpochNanosTimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
enc.AppendInt64(t.UnixNano())
}
// ISO8601TimeEncoder serializes a time.Time to an ISO8601-formatted string
// with millisecond precision.
func ISO8601TimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
enc.AppendString(t.Format("2006-01-02T15:04:05.000Z0700"))
}
// UnmarshalText unmarshals text to a TimeEncoder. "iso8601" and "ISO8601" are
// unmarshaled to ISO8601TimeEncoder, "millis" is unmarshaled to
// EpochMillisTimeEncoder, and anything else is unmarshaled to EpochTimeEncoder.
func (e *TimeEncoder) UnmarshalText(text []byte) error {
switch string(text) {
case "iso8601", "ISO8601":
*e = ISO8601TimeEncoder
case "millis":
*e = EpochMillisTimeEncoder
case "nanos":
*e = EpochNanosTimeEncoder
default:
*e = EpochTimeEncoder
}
return nil
}
// A DurationEncoder serializes a time.Duration to a primitive type.
type DurationEncoder func(time.Duration, PrimitiveArrayEncoder)
// SecondsDurationEncoder serializes a time.Duration to a floating-point number of seconds elapsed.
func SecondsDurationEncoder(d time.Duration, enc PrimitiveArrayEncoder) {
enc.AppendFloat64(float64(d) / float64(time.Second))
}
// NanosDurationEncoder serializes a time.Duration to an integer number of
// nanoseconds elapsed.
func NanosDurationEncoder(d time.Duration, enc PrimitiveArrayEncoder) {
enc.AppendInt64(int64(d))
}
// StringDurationEncoder serializes a time.Duration using its built-in String
// method.
func StringDurationEncoder(d time.Duration, enc PrimitiveArrayEncoder) {
enc.AppendString(d.String())
}
// UnmarshalText unmarshals text to a DurationEncoder. "string" is unmarshaled
// to StringDurationEncoder, and anything else is unmarshaled to
// NanosDurationEncoder.
func (e *DurationEncoder) UnmarshalText(text []byte) error {
switch string(text) {
case "string":
*e = StringDurationEncoder
case "nanos":
*e = NanosDurationEncoder
default:
*e = SecondsDurationEncoder
}
return nil
}
// A CallerEncoder serializes an EntryCaller to a primitive type.
type CallerEncoder func(EntryCaller, PrimitiveArrayEncoder)
// FullCallerEncoder serializes a caller in /full/path/to/package/file:line
// format.
func FullCallerEncoder(caller EntryCaller, enc PrimitiveArrayEncoder) {
// TODO: consider using a byte-oriented API to save an allocation.
enc.AppendString(caller.String())
}
// ShortCallerEncoder serializes a caller in package/file:line format, trimming
// all but the final directory from the full path.
func ShortCallerEncoder(caller EntryCaller, enc PrimitiveArrayEncoder) {
// TODO: consider using a byte-oriented API to save an allocation.
enc.AppendString(caller.TrimmedPath())
}
// UnmarshalText unmarshals text to a CallerEncoder. "full" is unmarshaled to
// FullCallerEncoder and anything else is unmarshaled to ShortCallerEncoder.
func (e *CallerEncoder) UnmarshalText(text []byte) error {
switch string(text) {
case "full":
*e = FullCallerEncoder
default:
*e = ShortCallerEncoder
}
return nil
}
// A NameEncoder serializes a period-separated logger name to a primitive
// type.
type NameEncoder func(string, PrimitiveArrayEncoder)
// FullNameEncoder serializes the logger name as-is.
func FullNameEncoder(loggerName string, enc PrimitiveArrayEncoder) {
enc.AppendString(loggerName)
}
// UnmarshalText unmarshals text to a NameEncoder. Currently, everything is
// unmarshaled to FullNameEncoder.
func (e *NameEncoder) UnmarshalText(text []byte) error {
switch string(text) {
case "full":
*e = FullNameEncoder
default:
*e = FullNameEncoder
}
return nil
}
// An EncoderConfig allows users to configure the concrete encoders supplied by
// zapcore.
type EncoderConfig struct {
// Set the keys used for each log entry. If any key is empty, that portion
// of the entry is omitted.
MessageKey string `json:"messageKey" yaml:"messageKey"`
LevelKey string `json:"levelKey" yaml:"levelKey"`
TimeKey string `json:"timeKey" yaml:"timeKey"`
NameKey string `json:"nameKey" yaml:"nameKey"`
CallerKey string `json:"callerKey" yaml:"callerKey"`
StacktraceKey string `json:"stacktraceKey" yaml:"stacktraceKey"`
LineEnding string `json:"lineEnding" yaml:"lineEnding"`
// Configure the primitive representations of common complex types. For
// example, some users may want all time.Times serialized as floating-point
// seconds since epoch, while others may prefer ISO8601 strings.
EncodeLevel LevelEncoder `json:"levelEncoder" yaml:"levelEncoder"`
EncodeTime TimeEncoder `json:"timeEncoder" yaml:"timeEncoder"`
EncodeDuration DurationEncoder `json:"durationEncoder" yaml:"durationEncoder"`
EncodeCaller CallerEncoder `json:"callerEncoder" yaml:"callerEncoder"`
// Unlike the other primitive type encoders, EncodeName is optional. The
// zero value falls back to FullNameEncoder.
EncodeName NameEncoder `json:"nameEncoder" yaml:"nameEncoder"`
}
// ObjectEncoder is a strongly-typed, encoding-agnostic interface for adding a
// map- or struct-like object to the logging context. Like maps, ObjectEncoders
// aren't safe for concurrent use (though typical use shouldn't require locks).
type ObjectEncoder interface {
// Logging-specific marshalers.
AddArray(key string, marshaler ArrayMarshaler) error
AddObject(key string, marshaler ObjectMarshaler) error
// Built-in types.
AddBinary(key string, value []byte) // for arbitrary bytes
AddByteString(key string, value []byte) // for UTF-8 encoded bytes
AddBool(key string, value bool)
AddComplex128(key string, value complex128)
AddComplex64(key string, value complex64)
AddDuration(key string, value time.Duration)
AddFloat64(key string, value float64)
AddFloat32(key string, value float32)
AddInt(key string, value int)
AddInt64(key string, value int64)
AddInt32(key string, value int32)
AddInt16(key string, value int16)
AddInt8(key string, value int8)
AddString(key, value string)
AddTime(key string, value time.Time)
AddUint(key string, value uint)
AddUint64(key string, value uint64)
AddUint32(key string, value uint32)
AddUint16(key string, value uint16)
AddUint8(key string, value uint8)
AddUintptr(key string, value uintptr)
// AddReflected uses reflection to serialize arbitrary objects, so it's slow
// and allocation-heavy.
AddReflected(key string, value interface{}) error
// OpenNamespace opens an isolated namespace where all subsequent fields will
// be added. Applications can use namespaces to prevent key collisions when
// injecting loggers into sub-components or third-party libraries.
OpenNamespace(key string)
}
// ArrayEncoder is a strongly-typed, encoding-agnostic interface for adding
// array-like objects to the logging context. Of note, it supports mixed-type
// arrays even though they aren't typical in Go. Like slices, ArrayEncoders
// aren't safe for concurrent use (though typical use shouldn't require locks).
type ArrayEncoder interface {
// Built-in types.
PrimitiveArrayEncoder
// Time-related types.
AppendDuration(time.Duration)
AppendTime(time.Time)
// Logging-specific marshalers.
AppendArray(ArrayMarshaler) error
AppendObject(ObjectMarshaler) error
// AppendReflected uses reflection to serialize arbitrary objects, so it's
// slow and allocation-heavy.
AppendReflected(value interface{}) error
}
// PrimitiveArrayEncoder is the subset of the ArrayEncoder interface that deals
// only in Go's built-in types. It's included only so that Duration- and
// TimeEncoders cannot trigger infinite recursion.
type PrimitiveArrayEncoder interface {
// Built-in types.
AppendBool(bool)
AppendByteString([]byte) // for UTF-8 encoded bytes
AppendComplex128(complex128)
AppendComplex64(complex64)
AppendFloat64(float64)
AppendFloat32(float32)
AppendInt(int)
AppendInt64(int64)
AppendInt32(int32)
AppendInt16(int16)
AppendInt8(int8)
AppendString(string)
AppendUint(uint)
AppendUint64(uint64)
AppendUint32(uint32)
AppendUint16(uint16)
AppendUint8(uint8)
AppendUintptr(uintptr)
}
// Encoder is a format-agnostic interface for all log entry marshalers. Since
// log encoders don't need to support the same wide range of use cases as
// general-purpose marshalers, it's possible to make them faster and
// lower-allocation.
//
// Implementations of the ObjectEncoder interface's methods can, of course,
// freely modify the receiver. However, the Clone and EncodeEntry methods will
// be called concurrently and shouldn't modify the receiver.
type Encoder interface {
ObjectEncoder
// Clone copies the encoder, ensuring that adding fields to the copy doesn't
// affect the original.
Clone() Encoder
// EncodeEntry encodes an entry and fields, along with any accumulated
// context, into a byte buffer and returns it.
EncodeEntry(Entry, []Field) (*buffer.Buffer, error)
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"fmt"
"strings"
"sync"
"time"
"go.uber.org/zap/internal/bufferpool"
"go.uber.org/zap/internal/exit"
"go.uber.org/multierr"
)
var (
_cePool = sync.Pool{New: func() interface{} {
// Pre-allocate some space for cores.
return &CheckedEntry{
cores: make([]Core, 4),
}
}}
)
func getCheckedEntry() *CheckedEntry {
ce := _cePool.Get().(*CheckedEntry)
ce.reset()
return ce
}
func putCheckedEntry(ce *CheckedEntry) {
if ce == nil {
return
}
_cePool.Put(ce)
}
// NewEntryCaller makes an EntryCaller from the return signature of
// runtime.Caller.
func NewEntryCaller(pc uintptr, file string, line int, ok bool) EntryCaller {
if !ok {
return EntryCaller{}
}
return EntryCaller{
PC: pc,
File: file,
Line: line,
Defined: true,
}
}
// EntryCaller represents the caller of a logging function.
type EntryCaller struct {
Defined bool
PC uintptr
File string
Line int
}
// String returns the full path and line number of the caller.
func (ec EntryCaller) String() string {
return ec.FullPath()
}
// FullPath returns a /full/path/to/package/file:line description of the
// caller.
func (ec EntryCaller) FullPath() string {
if !ec.Defined {
return "undefined"
}
buf := bufferpool.Get()
buf.AppendString(ec.File)
buf.AppendByte(':')
buf.AppendInt(int64(ec.Line))
caller := buf.String()
buf.Free()
return caller
}
// TrimmedPath returns a package/file:line description of the caller,
// preserving only the leaf directory name and file name.
func (ec EntryCaller) TrimmedPath() string {
if !ec.Defined {
return "undefined"
}
// nb. To make sure we trim the path correctly on Windows too, we
// counter-intuitively need to use '/' and *not* os.PathSeparator here,
// because the path given originates from Go stdlib, specifically
// runtime.Caller() which (as of Mar/17) returns forward slashes even on
// Windows.
//
// See https://github.com/golang/go/issues/3335
// and https://github.com/golang/go/issues/18151
//
// for discussion on the issue on Go side.
//
// Find the last separator.
//
idx := strings.LastIndexByte(ec.File, '/')
if idx == -1 {
return ec.FullPath()
}
// Find the penultimate separator.
idx = strings.LastIndexByte(ec.File[:idx], '/')
if idx == -1 {
return ec.FullPath()
}
buf := bufferpool.Get()
// Keep everything after the penultimate separator.
buf.AppendString(ec.File[idx+1:])
buf.AppendByte(':')
buf.AppendInt(int64(ec.Line))
caller := buf.String()
buf.Free()
return caller
}
// An Entry represents a complete log message. The entry's structured context
// is already serialized, but the log level, time, message, and call site
// information are available for inspection and modification.
//
// Entries are pooled, so any functions that accept them MUST be careful not to
// retain references to them.
type Entry struct {
Level Level
Time time.Time
LoggerName string
Message string
Caller EntryCaller
Stack string
}
// CheckWriteAction indicates what action to take after a log entry is
// processed. Actions are ordered in increasing severity.
type CheckWriteAction uint8
const (
// WriteThenNoop indicates that nothing special needs to be done. It's the
// default behavior.
WriteThenNoop CheckWriteAction = iota
// WriteThenPanic causes a panic after Write.
WriteThenPanic
// WriteThenFatal causes a fatal os.Exit after Write.
WriteThenFatal
)
// CheckedEntry is an Entry together with a collection of Cores that have
// already agreed to log it.
//
// CheckedEntry references should be created by calling AddCore or Should on a
// nil *CheckedEntry. References are returned to a pool after Write, and MUST
// NOT be retained after calling their Write method.
type CheckedEntry struct {
Entry
ErrorOutput WriteSyncer
dirty bool // best-effort detection of pool misuse
should CheckWriteAction
cores []Core
}
func (ce *CheckedEntry) reset() {
ce.Entry = Entry{}
ce.ErrorOutput = nil
ce.dirty = false
ce.should = WriteThenNoop
for i := range ce.cores {
// don't keep references to cores
ce.cores[i] = nil
}
ce.cores = ce.cores[:0]
}
// Write writes the entry to the stored Cores, returns any errors, and returns
// the CheckedEntry reference to a pool for immediate re-use. Finally, it
// executes any required CheckWriteAction.
func (ce *CheckedEntry) Write(fields ...Field) {
if ce == nil {
return
}
if ce.dirty {
if ce.ErrorOutput != nil {
// Make a best effort to detect unsafe re-use of this CheckedEntry.
// If the entry is dirty, log an internal error; because the
// CheckedEntry is being used after it was returned to the pool,
// the message may be an amalgamation from multiple call sites.
fmt.Fprintf(ce.ErrorOutput, "%v Unsafe CheckedEntry re-use near Entry %+v.\n", time.Now(), ce.Entry)
ce.ErrorOutput.Sync()
}
return
}
ce.dirty = true
var err error
for i := range ce.cores {
err = multierr.Append(err, ce.cores[i].Write(ce.Entry, fields))
}
if ce.ErrorOutput != nil {
if err != nil {
fmt.Fprintf(ce.ErrorOutput, "%v write error: %v\n", time.Now(), err)
ce.ErrorOutput.Sync()
}
}
should, msg := ce.should, ce.Message
putCheckedEntry(ce)
switch should {
case WriteThenPanic:
panic(msg)
case WriteThenFatal:
exit.Exit()
}
}
// AddCore adds a Core that has agreed to log this CheckedEntry. It's intended to be
// used by Core.Check implementations, and is safe to call on nil CheckedEntry
// references.
func (ce *CheckedEntry) AddCore(ent Entry, core Core) *CheckedEntry {
if ce == nil {
ce = getCheckedEntry()
ce.Entry = ent
}
ce.cores = append(ce.cores, core)
return ce
}
// Should sets this CheckedEntry's CheckWriteAction, which controls whether a
// Core will panic or fatal after writing this log entry. Like AddCore, it's
// safe to call on nil CheckedEntry references.
func (ce *CheckedEntry) Should(ent Entry, should CheckWriteAction) *CheckedEntry {
if ce == nil {
ce = getCheckedEntry()
ce.Entry = ent
}
ce.should = should
return ce
}

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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"fmt"
"sync"
)
// Encodes the given error into fields of an object. A field with the given
// name is added for the error message.
//
// If the error implements fmt.Formatter, a field with the name ${key}Verbose
// is also added with the full verbose error message.
//
// Finally, if the error implements errorGroup (from go.uber.org/multierr) or
// causer (from github.com/pkg/errors), a ${key}Causes field is added with an
// array of objects containing the errors this error was comprised of.
//
// {
// "error": err.Error(),
// "errorVerbose": fmt.Sprintf("%+v", err),
// "errorCauses": [
// ...
// ],
// }
func encodeError(key string, err error, enc ObjectEncoder) error {
basic := err.Error()
enc.AddString(key, basic)
switch e := err.(type) {
case errorGroup:
return enc.AddArray(key+"Causes", errArray(e.Errors()))
case fmt.Formatter:
verbose := fmt.Sprintf("%+v", e)
if verbose != basic {
// This is a rich error type, like those produced by
// github.com/pkg/errors.
enc.AddString(key+"Verbose", verbose)
}
}
return nil
}
type errorGroup interface {
// Provides read-only access to the underlying list of errors, preferably
// without causing any allocs.
Errors() []error
}
type causer interface {
// Provides access to the error that caused this error.
Cause() error
}
// Note that errArry and errArrayElem are very similar to the version
// implemented in the top-level error.go file. We can't re-use this because
// that would require exporting errArray as part of the zapcore API.
// Encodes a list of errors using the standard error encoding logic.
type errArray []error
func (errs errArray) MarshalLogArray(arr ArrayEncoder) error {
for i := range errs {
if errs[i] == nil {
continue
}
el := newErrArrayElem(errs[i])
arr.AppendObject(el)
el.Free()
}
return nil
}
var _errArrayElemPool = sync.Pool{New: func() interface{} {
return &errArrayElem{}
}}
// Encodes any error into a {"error": ...} re-using the same errors logic.
//
// May be passed in place of an array to build a single-element array.
type errArrayElem struct{ err error }
func newErrArrayElem(err error) *errArrayElem {
e := _errArrayElemPool.Get().(*errArrayElem)
e.err = err
return e
}
func (e *errArrayElem) MarshalLogArray(arr ArrayEncoder) error {
return arr.AppendObject(e)
}
func (e *errArrayElem) MarshalLogObject(enc ObjectEncoder) error {
return encodeError("error", e.err, enc)
}
func (e *errArrayElem) Free() {
e.err = nil
_errArrayElemPool.Put(e)
}

201
build/manifest/vendor/go.uber.org/zap/zapcore/field.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"bytes"
"fmt"
"math"
"reflect"
"time"
)
// A FieldType indicates which member of the Field union struct should be used
// and how it should be serialized.
type FieldType uint8
const (
// UnknownType is the default field type. Attempting to add it to an encoder will panic.
UnknownType FieldType = iota
// ArrayMarshalerType indicates that the field carries an ArrayMarshaler.
ArrayMarshalerType
// ObjectMarshalerType indicates that the field carries an ObjectMarshaler.
ObjectMarshalerType
// BinaryType indicates that the field carries an opaque binary blob.
BinaryType
// BoolType indicates that the field carries a bool.
BoolType
// ByteStringType indicates that the field carries UTF-8 encoded bytes.
ByteStringType
// Complex128Type indicates that the field carries a complex128.
Complex128Type
// Complex64Type indicates that the field carries a complex128.
Complex64Type
// DurationType indicates that the field carries a time.Duration.
DurationType
// Float64Type indicates that the field carries a float64.
Float64Type
// Float32Type indicates that the field carries a float32.
Float32Type
// Int64Type indicates that the field carries an int64.
Int64Type
// Int32Type indicates that the field carries an int32.
Int32Type
// Int16Type indicates that the field carries an int16.
Int16Type
// Int8Type indicates that the field carries an int8.
Int8Type
// StringType indicates that the field carries a string.
StringType
// TimeType indicates that the field carries a time.Time.
TimeType
// Uint64Type indicates that the field carries a uint64.
Uint64Type
// Uint32Type indicates that the field carries a uint32.
Uint32Type
// Uint16Type indicates that the field carries a uint16.
Uint16Type
// Uint8Type indicates that the field carries a uint8.
Uint8Type
// UintptrType indicates that the field carries a uintptr.
UintptrType
// ReflectType indicates that the field carries an interface{}, which should
// be serialized using reflection.
ReflectType
// NamespaceType signals the beginning of an isolated namespace. All
// subsequent fields should be added to the new namespace.
NamespaceType
// StringerType indicates that the field carries a fmt.Stringer.
StringerType
// ErrorType indicates that the field carries an error.
ErrorType
// SkipType indicates that the field is a no-op.
SkipType
)
// A Field is a marshaling operation used to add a key-value pair to a logger's
// context. Most fields are lazily marshaled, so it's inexpensive to add fields
// to disabled debug-level log statements.
type Field struct {
Key string
Type FieldType
Integer int64
String string
Interface interface{}
}
// AddTo exports a field through the ObjectEncoder interface. It's primarily
// useful to library authors, and shouldn't be necessary in most applications.
func (f Field) AddTo(enc ObjectEncoder) {
var err error
switch f.Type {
case ArrayMarshalerType:
err = enc.AddArray(f.Key, f.Interface.(ArrayMarshaler))
case ObjectMarshalerType:
err = enc.AddObject(f.Key, f.Interface.(ObjectMarshaler))
case BinaryType:
enc.AddBinary(f.Key, f.Interface.([]byte))
case BoolType:
enc.AddBool(f.Key, f.Integer == 1)
case ByteStringType:
enc.AddByteString(f.Key, f.Interface.([]byte))
case Complex128Type:
enc.AddComplex128(f.Key, f.Interface.(complex128))
case Complex64Type:
enc.AddComplex64(f.Key, f.Interface.(complex64))
case DurationType:
enc.AddDuration(f.Key, time.Duration(f.Integer))
case Float64Type:
enc.AddFloat64(f.Key, math.Float64frombits(uint64(f.Integer)))
case Float32Type:
enc.AddFloat32(f.Key, math.Float32frombits(uint32(f.Integer)))
case Int64Type:
enc.AddInt64(f.Key, f.Integer)
case Int32Type:
enc.AddInt32(f.Key, int32(f.Integer))
case Int16Type:
enc.AddInt16(f.Key, int16(f.Integer))
case Int8Type:
enc.AddInt8(f.Key, int8(f.Integer))
case StringType:
enc.AddString(f.Key, f.String)
case TimeType:
if f.Interface != nil {
enc.AddTime(f.Key, time.Unix(0, f.Integer).In(f.Interface.(*time.Location)))
} else {
// Fall back to UTC if location is nil.
enc.AddTime(f.Key, time.Unix(0, f.Integer))
}
case Uint64Type:
enc.AddUint64(f.Key, uint64(f.Integer))
case Uint32Type:
enc.AddUint32(f.Key, uint32(f.Integer))
case Uint16Type:
enc.AddUint16(f.Key, uint16(f.Integer))
case Uint8Type:
enc.AddUint8(f.Key, uint8(f.Integer))
case UintptrType:
enc.AddUintptr(f.Key, uintptr(f.Integer))
case ReflectType:
err = enc.AddReflected(f.Key, f.Interface)
case NamespaceType:
enc.OpenNamespace(f.Key)
case StringerType:
enc.AddString(f.Key, f.Interface.(fmt.Stringer).String())
case ErrorType:
encodeError(f.Key, f.Interface.(error), enc)
case SkipType:
break
default:
panic(fmt.Sprintf("unknown field type: %v", f))
}
if err != nil {
enc.AddString(fmt.Sprintf("%sError", f.Key), err.Error())
}
}
// Equals returns whether two fields are equal. For non-primitive types such as
// errors, marshalers, or reflect types, it uses reflect.DeepEqual.
func (f Field) Equals(other Field) bool {
if f.Type != other.Type {
return false
}
if f.Key != other.Key {
return false
}
switch f.Type {
case BinaryType, ByteStringType:
return bytes.Equal(f.Interface.([]byte), other.Interface.([]byte))
case ArrayMarshalerType, ObjectMarshalerType, ErrorType, ReflectType:
return reflect.DeepEqual(f.Interface, other.Interface)
default:
return f == other
}
}
func addFields(enc ObjectEncoder, fields []Field) {
for i := range fields {
fields[i].AddTo(enc)
}
}

68
build/manifest/vendor/go.uber.org/zap/zapcore/hook.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import "go.uber.org/multierr"
type hooked struct {
Core
funcs []func(Entry) error
}
// RegisterHooks wraps a Core and runs a collection of user-defined callback
// hooks each time a message is logged. Execution of the callbacks is blocking.
//
// This offers users an easy way to register simple callbacks (e.g., metrics
// collection) without implementing the full Core interface.
func RegisterHooks(core Core, hooks ...func(Entry) error) Core {
funcs := append([]func(Entry) error{}, hooks...)
return &hooked{
Core: core,
funcs: funcs,
}
}
func (h *hooked) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
// Let the wrapped Core decide whether to log this message or not. This
// also gives the downstream a chance to register itself directly with the
// CheckedEntry.
if downstream := h.Core.Check(ent, ce); downstream != nil {
return downstream.AddCore(ent, h)
}
return ce
}
func (h *hooked) With(fields []Field) Core {
return &hooked{
Core: h.Core.With(fields),
funcs: h.funcs,
}
}
func (h *hooked) Write(ent Entry, _ []Field) error {
// Since our downstream had a chance to register itself directly with the
// CheckedMessage, we don't need to call it here.
var err error
for i := range h.funcs {
err = multierr.Append(err, h.funcs[i](ent))
}
return err
}

502
build/manifest/vendor/go.uber.org/zap/zapcore/json_encoder.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"encoding/base64"
"encoding/json"
"math"
"sync"
"time"
"unicode/utf8"
"go.uber.org/zap/buffer"
"go.uber.org/zap/internal/bufferpool"
)
// For JSON-escaping; see jsonEncoder.safeAddString below.
const _hex = "0123456789abcdef"
var _jsonPool = sync.Pool{New: func() interface{} {
return &jsonEncoder{}
}}
func getJSONEncoder() *jsonEncoder {
return _jsonPool.Get().(*jsonEncoder)
}
func putJSONEncoder(enc *jsonEncoder) {
if enc.reflectBuf != nil {
enc.reflectBuf.Free()
}
enc.EncoderConfig = nil
enc.buf = nil
enc.spaced = false
enc.openNamespaces = 0
enc.reflectBuf = nil
enc.reflectEnc = nil
_jsonPool.Put(enc)
}
type jsonEncoder struct {
*EncoderConfig
buf *buffer.Buffer
spaced bool // include spaces after colons and commas
openNamespaces int
// for encoding generic values by reflection
reflectBuf *buffer.Buffer
reflectEnc *json.Encoder
}
// NewJSONEncoder creates a fast, low-allocation JSON encoder. The encoder
// appropriately escapes all field keys and values.
//
// Note that the encoder doesn't deduplicate keys, so it's possible to produce
// a message like
// {"foo":"bar","foo":"baz"}
// This is permitted by the JSON specification, but not encouraged. Many
// libraries will ignore duplicate key-value pairs (typically keeping the last
// pair) when unmarshaling, but users should attempt to avoid adding duplicate
// keys.
func NewJSONEncoder(cfg EncoderConfig) Encoder {
return newJSONEncoder(cfg, false)
}
func newJSONEncoder(cfg EncoderConfig, spaced bool) *jsonEncoder {
return &jsonEncoder{
EncoderConfig: &cfg,
buf: bufferpool.Get(),
spaced: spaced,
}
}
func (enc *jsonEncoder) AddArray(key string, arr ArrayMarshaler) error {
enc.addKey(key)
return enc.AppendArray(arr)
}
func (enc *jsonEncoder) AddObject(key string, obj ObjectMarshaler) error {
enc.addKey(key)
return enc.AppendObject(obj)
}
func (enc *jsonEncoder) AddBinary(key string, val []byte) {
enc.AddString(key, base64.StdEncoding.EncodeToString(val))
}
func (enc *jsonEncoder) AddByteString(key string, val []byte) {
enc.addKey(key)
enc.AppendByteString(val)
}
func (enc *jsonEncoder) AddBool(key string, val bool) {
enc.addKey(key)
enc.AppendBool(val)
}
func (enc *jsonEncoder) AddComplex128(key string, val complex128) {
enc.addKey(key)
enc.AppendComplex128(val)
}
func (enc *jsonEncoder) AddDuration(key string, val time.Duration) {
enc.addKey(key)
enc.AppendDuration(val)
}
func (enc *jsonEncoder) AddFloat64(key string, val float64) {
enc.addKey(key)
enc.AppendFloat64(val)
}
func (enc *jsonEncoder) AddInt64(key string, val int64) {
enc.addKey(key)
enc.AppendInt64(val)
}
func (enc *jsonEncoder) resetReflectBuf() {
if enc.reflectBuf == nil {
enc.reflectBuf = bufferpool.Get()
enc.reflectEnc = json.NewEncoder(enc.reflectBuf)
} else {
enc.reflectBuf.Reset()
}
}
func (enc *jsonEncoder) AddReflected(key string, obj interface{}) error {
enc.resetReflectBuf()
err := enc.reflectEnc.Encode(obj)
if err != nil {
return err
}
enc.reflectBuf.TrimNewline()
enc.addKey(key)
_, err = enc.buf.Write(enc.reflectBuf.Bytes())
return err
}
func (enc *jsonEncoder) OpenNamespace(key string) {
enc.addKey(key)
enc.buf.AppendByte('{')
enc.openNamespaces++
}
func (enc *jsonEncoder) AddString(key, val string) {
enc.addKey(key)
enc.AppendString(val)
}
func (enc *jsonEncoder) AddTime(key string, val time.Time) {
enc.addKey(key)
enc.AppendTime(val)
}
func (enc *jsonEncoder) AddUint64(key string, val uint64) {
enc.addKey(key)
enc.AppendUint64(val)
}
func (enc *jsonEncoder) AppendArray(arr ArrayMarshaler) error {
enc.addElementSeparator()
enc.buf.AppendByte('[')
err := arr.MarshalLogArray(enc)
enc.buf.AppendByte(']')
return err
}
func (enc *jsonEncoder) AppendObject(obj ObjectMarshaler) error {
enc.addElementSeparator()
enc.buf.AppendByte('{')
err := obj.MarshalLogObject(enc)
enc.buf.AppendByte('}')
return err
}
func (enc *jsonEncoder) AppendBool(val bool) {
enc.addElementSeparator()
enc.buf.AppendBool(val)
}
func (enc *jsonEncoder) AppendByteString(val []byte) {
enc.addElementSeparator()
enc.buf.AppendByte('"')
enc.safeAddByteString(val)
enc.buf.AppendByte('"')
}
func (enc *jsonEncoder) AppendComplex128(val complex128) {
enc.addElementSeparator()
// Cast to a platform-independent, fixed-size type.
r, i := float64(real(val)), float64(imag(val))
enc.buf.AppendByte('"')
// Because we're always in a quoted string, we can use strconv without
// special-casing NaN and +/-Inf.
enc.buf.AppendFloat(r, 64)
enc.buf.AppendByte('+')
enc.buf.AppendFloat(i, 64)
enc.buf.AppendByte('i')
enc.buf.AppendByte('"')
}
func (enc *jsonEncoder) AppendDuration(val time.Duration) {
cur := enc.buf.Len()
enc.EncodeDuration(val, enc)
if cur == enc.buf.Len() {
// User-supplied EncodeDuration is a no-op. Fall back to nanoseconds to keep
// JSON valid.
enc.AppendInt64(int64(val))
}
}
func (enc *jsonEncoder) AppendInt64(val int64) {
enc.addElementSeparator()
enc.buf.AppendInt(val)
}
func (enc *jsonEncoder) AppendReflected(val interface{}) error {
enc.resetReflectBuf()
err := enc.reflectEnc.Encode(val)
if err != nil {
return err
}
enc.reflectBuf.TrimNewline()
enc.addElementSeparator()
_, err = enc.buf.Write(enc.reflectBuf.Bytes())
return err
}
func (enc *jsonEncoder) AppendString(val string) {
enc.addElementSeparator()
enc.buf.AppendByte('"')
enc.safeAddString(val)
enc.buf.AppendByte('"')
}
func (enc *jsonEncoder) AppendTime(val time.Time) {
cur := enc.buf.Len()
enc.EncodeTime(val, enc)
if cur == enc.buf.Len() {
// User-supplied EncodeTime is a no-op. Fall back to nanos since epoch to keep
// output JSON valid.
enc.AppendInt64(val.UnixNano())
}
}
func (enc *jsonEncoder) AppendUint64(val uint64) {
enc.addElementSeparator()
enc.buf.AppendUint(val)
}
func (enc *jsonEncoder) AddComplex64(k string, v complex64) { enc.AddComplex128(k, complex128(v)) }
func (enc *jsonEncoder) AddFloat32(k string, v float32) { enc.AddFloat64(k, float64(v)) }
func (enc *jsonEncoder) AddInt(k string, v int) { enc.AddInt64(k, int64(v)) }
func (enc *jsonEncoder) AddInt32(k string, v int32) { enc.AddInt64(k, int64(v)) }
func (enc *jsonEncoder) AddInt16(k string, v int16) { enc.AddInt64(k, int64(v)) }
func (enc *jsonEncoder) AddInt8(k string, v int8) { enc.AddInt64(k, int64(v)) }
func (enc *jsonEncoder) AddUint(k string, v uint) { enc.AddUint64(k, uint64(v)) }
func (enc *jsonEncoder) AddUint32(k string, v uint32) { enc.AddUint64(k, uint64(v)) }
func (enc *jsonEncoder) AddUint16(k string, v uint16) { enc.AddUint64(k, uint64(v)) }
func (enc *jsonEncoder) AddUint8(k string, v uint8) { enc.AddUint64(k, uint64(v)) }
func (enc *jsonEncoder) AddUintptr(k string, v uintptr) { enc.AddUint64(k, uint64(v)) }
func (enc *jsonEncoder) AppendComplex64(v complex64) { enc.AppendComplex128(complex128(v)) }
func (enc *jsonEncoder) AppendFloat64(v float64) { enc.appendFloat(v, 64) }
func (enc *jsonEncoder) AppendFloat32(v float32) { enc.appendFloat(float64(v), 32) }
func (enc *jsonEncoder) AppendInt(v int) { enc.AppendInt64(int64(v)) }
func (enc *jsonEncoder) AppendInt32(v int32) { enc.AppendInt64(int64(v)) }
func (enc *jsonEncoder) AppendInt16(v int16) { enc.AppendInt64(int64(v)) }
func (enc *jsonEncoder) AppendInt8(v int8) { enc.AppendInt64(int64(v)) }
func (enc *jsonEncoder) AppendUint(v uint) { enc.AppendUint64(uint64(v)) }
func (enc *jsonEncoder) AppendUint32(v uint32) { enc.AppendUint64(uint64(v)) }
func (enc *jsonEncoder) AppendUint16(v uint16) { enc.AppendUint64(uint64(v)) }
func (enc *jsonEncoder) AppendUint8(v uint8) { enc.AppendUint64(uint64(v)) }
func (enc *jsonEncoder) AppendUintptr(v uintptr) { enc.AppendUint64(uint64(v)) }
func (enc *jsonEncoder) Clone() Encoder {
clone := enc.clone()
clone.buf.Write(enc.buf.Bytes())
return clone
}
func (enc *jsonEncoder) clone() *jsonEncoder {
clone := getJSONEncoder()
clone.EncoderConfig = enc.EncoderConfig
clone.spaced = enc.spaced
clone.openNamespaces = enc.openNamespaces
clone.buf = bufferpool.Get()
return clone
}
func (enc *jsonEncoder) EncodeEntry(ent Entry, fields []Field) (*buffer.Buffer, error) {
final := enc.clone()
final.buf.AppendByte('{')
if final.LevelKey != "" {
final.addKey(final.LevelKey)
cur := final.buf.Len()
final.EncodeLevel(ent.Level, final)
if cur == final.buf.Len() {
// User-supplied EncodeLevel was a no-op. Fall back to strings to keep
// output JSON valid.
final.AppendString(ent.Level.String())
}
}
if final.TimeKey != "" {
final.AddTime(final.TimeKey, ent.Time)
}
if ent.LoggerName != "" && final.NameKey != "" {
final.addKey(final.NameKey)
cur := final.buf.Len()
nameEncoder := final.EncodeName
// if no name encoder provided, fall back to FullNameEncoder for backwards
// compatibility
if nameEncoder == nil {
nameEncoder = FullNameEncoder
}
nameEncoder(ent.LoggerName, final)
if cur == final.buf.Len() {
// User-supplied EncodeName was a no-op. Fall back to strings to
// keep output JSON valid.
final.AppendString(ent.LoggerName)
}
}
if ent.Caller.Defined && final.CallerKey != "" {
final.addKey(final.CallerKey)
cur := final.buf.Len()
final.EncodeCaller(ent.Caller, final)
if cur == final.buf.Len() {
// User-supplied EncodeCaller was a no-op. Fall back to strings to
// keep output JSON valid.
final.AppendString(ent.Caller.String())
}
}
if final.MessageKey != "" {
final.addKey(enc.MessageKey)
final.AppendString(ent.Message)
}
if enc.buf.Len() > 0 {
final.addElementSeparator()
final.buf.Write(enc.buf.Bytes())
}
addFields(final, fields)
final.closeOpenNamespaces()
if ent.Stack != "" && final.StacktraceKey != "" {
final.AddString(final.StacktraceKey, ent.Stack)
}
final.buf.AppendByte('}')
if final.LineEnding != "" {
final.buf.AppendString(final.LineEnding)
} else {
final.buf.AppendString(DefaultLineEnding)
}
ret := final.buf
putJSONEncoder(final)
return ret, nil
}
func (enc *jsonEncoder) truncate() {
enc.buf.Reset()
}
func (enc *jsonEncoder) closeOpenNamespaces() {
for i := 0; i < enc.openNamespaces; i++ {
enc.buf.AppendByte('}')
}
}
func (enc *jsonEncoder) addKey(key string) {
enc.addElementSeparator()
enc.buf.AppendByte('"')
enc.safeAddString(key)
enc.buf.AppendByte('"')
enc.buf.AppendByte(':')
if enc.spaced {
enc.buf.AppendByte(' ')
}
}
func (enc *jsonEncoder) addElementSeparator() {
last := enc.buf.Len() - 1
if last < 0 {
return
}
switch enc.buf.Bytes()[last] {
case '{', '[', ':', ',', ' ':
return
default:
enc.buf.AppendByte(',')
if enc.spaced {
enc.buf.AppendByte(' ')
}
}
}
func (enc *jsonEncoder) appendFloat(val float64, bitSize int) {
enc.addElementSeparator()
switch {
case math.IsNaN(val):
enc.buf.AppendString(`"NaN"`)
case math.IsInf(val, 1):
enc.buf.AppendString(`"+Inf"`)
case math.IsInf(val, -1):
enc.buf.AppendString(`"-Inf"`)
default:
enc.buf.AppendFloat(val, bitSize)
}
}
// safeAddString JSON-escapes a string and appends it to the internal buffer.
// Unlike the standard library's encoder, it doesn't attempt to protect the
// user from browser vulnerabilities or JSONP-related problems.
func (enc *jsonEncoder) safeAddString(s string) {
for i := 0; i < len(s); {
if enc.tryAddRuneSelf(s[i]) {
i++
continue
}
r, size := utf8.DecodeRuneInString(s[i:])
if enc.tryAddRuneError(r, size) {
i++
continue
}
enc.buf.AppendString(s[i : i+size])
i += size
}
}
// safeAddByteString is no-alloc equivalent of safeAddString(string(s)) for s []byte.
func (enc *jsonEncoder) safeAddByteString(s []byte) {
for i := 0; i < len(s); {
if enc.tryAddRuneSelf(s[i]) {
i++
continue
}
r, size := utf8.DecodeRune(s[i:])
if enc.tryAddRuneError(r, size) {
i++
continue
}
enc.buf.Write(s[i : i+size])
i += size
}
}
// tryAddRuneSelf appends b if it is valid UTF-8 character represented in a single byte.
func (enc *jsonEncoder) tryAddRuneSelf(b byte) bool {
if b >= utf8.RuneSelf {
return false
}
if 0x20 <= b && b != '\\' && b != '"' {
enc.buf.AppendByte(b)
return true
}
switch b {
case '\\', '"':
enc.buf.AppendByte('\\')
enc.buf.AppendByte(b)
case '\n':
enc.buf.AppendByte('\\')
enc.buf.AppendByte('n')
case '\r':
enc.buf.AppendByte('\\')
enc.buf.AppendByte('r')
case '\t':
enc.buf.AppendByte('\\')
enc.buf.AppendByte('t')
default:
// Encode bytes < 0x20, except for the escape sequences above.
enc.buf.AppendString(`\u00`)
enc.buf.AppendByte(_hex[b>>4])
enc.buf.AppendByte(_hex[b&0xF])
}
return true
}
func (enc *jsonEncoder) tryAddRuneError(r rune, size int) bool {
if r == utf8.RuneError && size == 1 {
enc.buf.AppendString(`\ufffd`)
return true
}
return false
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"bytes"
"errors"
"fmt"
)
var errUnmarshalNilLevel = errors.New("can't unmarshal a nil *Level")
// A Level is a logging priority. Higher levels are more important.
type Level int8
const (
// DebugLevel logs are typically voluminous, and are usually disabled in
// production.
DebugLevel Level = iota - 1
// InfoLevel is the default logging priority.
InfoLevel
// WarnLevel logs are more important than Info, but don't need individual
// human review.
WarnLevel
// ErrorLevel logs are high-priority. If an application is running smoothly,
// it shouldn't generate any error-level logs.
ErrorLevel
// DPanicLevel logs are particularly important errors. In development the
// logger panics after writing the message.
DPanicLevel
// PanicLevel logs a message, then panics.
PanicLevel
// FatalLevel logs a message, then calls os.Exit(1).
FatalLevel
_minLevel = DebugLevel
_maxLevel = FatalLevel
)
// String returns a lower-case ASCII representation of the log level.
func (l Level) String() string {
switch l {
case DebugLevel:
return "debug"
case InfoLevel:
return "info"
case WarnLevel:
return "warn"
case ErrorLevel:
return "error"
case DPanicLevel:
return "dpanic"
case PanicLevel:
return "panic"
case FatalLevel:
return "fatal"
default:
return fmt.Sprintf("Level(%d)", l)
}
}
// CapitalString returns an all-caps ASCII representation of the log level.
func (l Level) CapitalString() string {
// Printing levels in all-caps is common enough that we should export this
// functionality.
switch l {
case DebugLevel:
return "DEBUG"
case InfoLevel:
return "INFO"
case WarnLevel:
return "WARN"
case ErrorLevel:
return "ERROR"
case DPanicLevel:
return "DPANIC"
case PanicLevel:
return "PANIC"
case FatalLevel:
return "FATAL"
default:
return fmt.Sprintf("LEVEL(%d)", l)
}
}
// MarshalText marshals the Level to text. Note that the text representation
// drops the -Level suffix (see example).
func (l Level) MarshalText() ([]byte, error) {
return []byte(l.String()), nil
}
// UnmarshalText unmarshals text to a level. Like MarshalText, UnmarshalText
// expects the text representation of a Level to drop the -Level suffix (see
// example).
//
// In particular, this makes it easy to configure logging levels using YAML,
// TOML, or JSON files.
func (l *Level) UnmarshalText(text []byte) error {
if l == nil {
return errUnmarshalNilLevel
}
if !l.unmarshalText(text) && !l.unmarshalText(bytes.ToLower(text)) {
return fmt.Errorf("unrecognized level: %q", text)
}
return nil
}
func (l *Level) unmarshalText(text []byte) bool {
switch string(text) {
case "debug", "DEBUG":
*l = DebugLevel
case "info", "INFO", "": // make the zero value useful
*l = InfoLevel
case "warn", "WARN":
*l = WarnLevel
case "error", "ERROR":
*l = ErrorLevel
case "dpanic", "DPANIC":
*l = DPanicLevel
case "panic", "PANIC":
*l = PanicLevel
case "fatal", "FATAL":
*l = FatalLevel
default:
return false
}
return true
}
// Set sets the level for the flag.Value interface.
func (l *Level) Set(s string) error {
return l.UnmarshalText([]byte(s))
}
// Get gets the level for the flag.Getter interface.
func (l *Level) Get() interface{} {
return *l
}
// Enabled returns true if the given level is at or above this level.
func (l Level) Enabled(lvl Level) bool {
return lvl >= l
}
// LevelEnabler decides whether a given logging level is enabled when logging a
// message.
//
// Enablers are intended to be used to implement deterministic filters;
// concerns like sampling are better implemented as a Core.
//
// Each concrete Level value implements a static LevelEnabler which returns
// true for itself and all higher logging levels. For example WarnLevel.Enabled()
// will return true for WarnLevel, ErrorLevel, DPanicLevel, PanicLevel, and
// FatalLevel, but return false for InfoLevel and DebugLevel.
type LevelEnabler interface {
Enabled(Level) bool
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import "go.uber.org/zap/internal/color"
var (
_levelToColor = map[Level]color.Color{
DebugLevel: color.Magenta,
InfoLevel: color.Blue,
WarnLevel: color.Yellow,
ErrorLevel: color.Red,
DPanicLevel: color.Red,
PanicLevel: color.Red,
FatalLevel: color.Red,
}
_unknownLevelColor = color.Red
_levelToLowercaseColorString = make(map[Level]string, len(_levelToColor))
_levelToCapitalColorString = make(map[Level]string, len(_levelToColor))
)
func init() {
for level, color := range _levelToColor {
_levelToLowercaseColorString[level] = color.Add(level.String())
_levelToCapitalColorString[level] = color.Add(level.CapitalString())
}
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
// ObjectMarshaler allows user-defined types to efficiently add themselves to the
// logging context, and to selectively omit information which shouldn't be
// included in logs (e.g., passwords).
type ObjectMarshaler interface {
MarshalLogObject(ObjectEncoder) error
}
// ObjectMarshalerFunc is a type adapter that turns a function into an
// ObjectMarshaler.
type ObjectMarshalerFunc func(ObjectEncoder) error
// MarshalLogObject calls the underlying function.
func (f ObjectMarshalerFunc) MarshalLogObject(enc ObjectEncoder) error {
return f(enc)
}
// ArrayMarshaler allows user-defined types to efficiently add themselves to the
// logging context, and to selectively omit information which shouldn't be
// included in logs (e.g., passwords).
type ArrayMarshaler interface {
MarshalLogArray(ArrayEncoder) error
}
// ArrayMarshalerFunc is a type adapter that turns a function into an
// ArrayMarshaler.
type ArrayMarshalerFunc func(ArrayEncoder) error
// MarshalLogArray calls the underlying function.
func (f ArrayMarshalerFunc) MarshalLogArray(enc ArrayEncoder) error {
return f(enc)
}

179
build/manifest/vendor/go.uber.org/zap/zapcore/memory_encoder.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import "time"
// MapObjectEncoder is an ObjectEncoder backed by a simple
// map[string]interface{}. It's not fast enough for production use, but it's
// helpful in tests.
type MapObjectEncoder struct {
// Fields contains the entire encoded log context.
Fields map[string]interface{}
// cur is a pointer to the namespace we're currently writing to.
cur map[string]interface{}
}
// NewMapObjectEncoder creates a new map-backed ObjectEncoder.
func NewMapObjectEncoder() *MapObjectEncoder {
m := make(map[string]interface{})
return &MapObjectEncoder{
Fields: m,
cur: m,
}
}
// AddArray implements ObjectEncoder.
func (m *MapObjectEncoder) AddArray(key string, v ArrayMarshaler) error {
arr := &sliceArrayEncoder{}
err := v.MarshalLogArray(arr)
m.cur[key] = arr.elems
return err
}
// AddObject implements ObjectEncoder.
func (m *MapObjectEncoder) AddObject(k string, v ObjectMarshaler) error {
newMap := NewMapObjectEncoder()
m.cur[k] = newMap.Fields
return v.MarshalLogObject(newMap)
}
// AddBinary implements ObjectEncoder.
func (m *MapObjectEncoder) AddBinary(k string, v []byte) { m.cur[k] = v }
// AddByteString implements ObjectEncoder.
func (m *MapObjectEncoder) AddByteString(k string, v []byte) { m.cur[k] = string(v) }
// AddBool implements ObjectEncoder.
func (m *MapObjectEncoder) AddBool(k string, v bool) { m.cur[k] = v }
// AddDuration implements ObjectEncoder.
func (m MapObjectEncoder) AddDuration(k string, v time.Duration) { m.cur[k] = v }
// AddComplex128 implements ObjectEncoder.
func (m *MapObjectEncoder) AddComplex128(k string, v complex128) { m.cur[k] = v }
// AddComplex64 implements ObjectEncoder.
func (m *MapObjectEncoder) AddComplex64(k string, v complex64) { m.cur[k] = v }
// AddFloat64 implements ObjectEncoder.
func (m *MapObjectEncoder) AddFloat64(k string, v float64) { m.cur[k] = v }
// AddFloat32 implements ObjectEncoder.
func (m *MapObjectEncoder) AddFloat32(k string, v float32) { m.cur[k] = v }
// AddInt implements ObjectEncoder.
func (m *MapObjectEncoder) AddInt(k string, v int) { m.cur[k] = v }
// AddInt64 implements ObjectEncoder.
func (m *MapObjectEncoder) AddInt64(k string, v int64) { m.cur[k] = v }
// AddInt32 implements ObjectEncoder.
func (m *MapObjectEncoder) AddInt32(k string, v int32) { m.cur[k] = v }
// AddInt16 implements ObjectEncoder.
func (m *MapObjectEncoder) AddInt16(k string, v int16) { m.cur[k] = v }
// AddInt8 implements ObjectEncoder.
func (m *MapObjectEncoder) AddInt8(k string, v int8) { m.cur[k] = v }
// AddString implements ObjectEncoder.
func (m *MapObjectEncoder) AddString(k string, v string) { m.cur[k] = v }
// AddTime implements ObjectEncoder.
func (m MapObjectEncoder) AddTime(k string, v time.Time) { m.cur[k] = v }
// AddUint implements ObjectEncoder.
func (m *MapObjectEncoder) AddUint(k string, v uint) { m.cur[k] = v }
// AddUint64 implements ObjectEncoder.
func (m *MapObjectEncoder) AddUint64(k string, v uint64) { m.cur[k] = v }
// AddUint32 implements ObjectEncoder.
func (m *MapObjectEncoder) AddUint32(k string, v uint32) { m.cur[k] = v }
// AddUint16 implements ObjectEncoder.
func (m *MapObjectEncoder) AddUint16(k string, v uint16) { m.cur[k] = v }
// AddUint8 implements ObjectEncoder.
func (m *MapObjectEncoder) AddUint8(k string, v uint8) { m.cur[k] = v }
// AddUintptr implements ObjectEncoder.
func (m *MapObjectEncoder) AddUintptr(k string, v uintptr) { m.cur[k] = v }
// AddReflected implements ObjectEncoder.
func (m *MapObjectEncoder) AddReflected(k string, v interface{}) error {
m.cur[k] = v
return nil
}
// OpenNamespace implements ObjectEncoder.
func (m *MapObjectEncoder) OpenNamespace(k string) {
ns := make(map[string]interface{})
m.cur[k] = ns
m.cur = ns
}
// sliceArrayEncoder is an ArrayEncoder backed by a simple []interface{}. Like
// the MapObjectEncoder, it's not designed for production use.
type sliceArrayEncoder struct {
elems []interface{}
}
func (s *sliceArrayEncoder) AppendArray(v ArrayMarshaler) error {
enc := &sliceArrayEncoder{}
err := v.MarshalLogArray(enc)
s.elems = append(s.elems, enc.elems)
return err
}
func (s *sliceArrayEncoder) AppendObject(v ObjectMarshaler) error {
m := NewMapObjectEncoder()
err := v.MarshalLogObject(m)
s.elems = append(s.elems, m.Fields)
return err
}
func (s *sliceArrayEncoder) AppendReflected(v interface{}) error {
s.elems = append(s.elems, v)
return nil
}
func (s *sliceArrayEncoder) AppendBool(v bool) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendByteString(v []byte) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendComplex128(v complex128) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendComplex64(v complex64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendDuration(v time.Duration) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendFloat64(v float64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendFloat32(v float32) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt(v int) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt64(v int64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt32(v int32) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt16(v int16) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt8(v int8) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendString(v string) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendTime(v time.Time) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint(v uint) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint64(v uint64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint32(v uint32) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint16(v uint16) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint8(v uint8) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUintptr(v uintptr) { s.elems = append(s.elems, v) }

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"time"
"go.uber.org/atomic"
)
const (
_numLevels = _maxLevel - _minLevel + 1
_countersPerLevel = 4096
)
type counter struct {
resetAt atomic.Int64
counter atomic.Uint64
}
type counters [_numLevels][_countersPerLevel]counter
func newCounters() *counters {
return &counters{}
}
func (cs *counters) get(lvl Level, key string) *counter {
i := lvl - _minLevel
j := fnv32a(key) % _countersPerLevel
return &cs[i][j]
}
// fnv32a, adapted from "hash/fnv", but without a []byte(string) alloc
func fnv32a(s string) uint32 {
const (
offset32 = 2166136261
prime32 = 16777619
)
hash := uint32(offset32)
for i := 0; i < len(s); i++ {
hash ^= uint32(s[i])
hash *= prime32
}
return hash
}
func (c *counter) IncCheckReset(t time.Time, tick time.Duration) uint64 {
tn := t.UnixNano()
resetAfter := c.resetAt.Load()
if resetAfter > tn {
return c.counter.Inc()
}
c.counter.Store(1)
newResetAfter := tn + tick.Nanoseconds()
if !c.resetAt.CAS(resetAfter, newResetAfter) {
// We raced with another goroutine trying to reset, and it also reset
// the counter to 1, so we need to reincrement the counter.
return c.counter.Inc()
}
return 1
}
type sampler struct {
Core
counts *counters
tick time.Duration
first, thereafter uint64
}
// NewSampler creates a Core that samples incoming entries, which caps the CPU
// and I/O load of logging while attempting to preserve a representative subset
// of your logs.
//
// Zap samples by logging the first N entries with a given level and message
// each tick. If more Entries with the same level and message are seen during
// the same interval, every Mth message is logged and the rest are dropped.
//
// Keep in mind that zap's sampling implementation is optimized for speed over
// absolute precision; under load, each tick may be slightly over- or
// under-sampled.
func NewSampler(core Core, tick time.Duration, first, thereafter int) Core {
return &sampler{
Core: core,
tick: tick,
counts: newCounters(),
first: uint64(first),
thereafter: uint64(thereafter),
}
}
func (s *sampler) With(fields []Field) Core {
return &sampler{
Core: s.Core.With(fields),
tick: s.tick,
counts: s.counts,
first: s.first,
thereafter: s.thereafter,
}
}
func (s *sampler) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
if !s.Enabled(ent.Level) {
return ce
}
counter := s.counts.get(ent.Level, ent.Message)
n := counter.IncCheckReset(ent.Time, s.tick)
if n > s.first && (n-s.first)%s.thereafter != 0 {
return ce
}
return s.Core.Check(ent, ce)
}

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build/manifest/vendor/go.uber.org/zap/zapcore/tee.go generated vendored Normal file
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import "go.uber.org/multierr"
type multiCore []Core
// NewTee creates a Core that duplicates log entries into two or more
// underlying Cores.
//
// Calling it with a single Core returns the input unchanged, and calling
// it with no input returns a no-op Core.
func NewTee(cores ...Core) Core {
switch len(cores) {
case 0:
return NewNopCore()
case 1:
return cores[0]
default:
return multiCore(cores)
}
}
func (mc multiCore) With(fields []Field) Core {
clone := make(multiCore, len(mc))
for i := range mc {
clone[i] = mc[i].With(fields)
}
return clone
}
func (mc multiCore) Enabled(lvl Level) bool {
for i := range mc {
if mc[i].Enabled(lvl) {
return true
}
}
return false
}
func (mc multiCore) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
for i := range mc {
ce = mc[i].Check(ent, ce)
}
return ce
}
func (mc multiCore) Write(ent Entry, fields []Field) error {
var err error
for i := range mc {
err = multierr.Append(err, mc[i].Write(ent, fields))
}
return err
}
func (mc multiCore) Sync() error {
var err error
for i := range mc {
err = multierr.Append(err, mc[i].Sync())
}
return err
}

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package zapcore
import (
"io"
"sync"
"go.uber.org/multierr"
)
// A WriteSyncer is an io.Writer that can also flush any buffered data. Note
// that *os.File (and thus, os.Stderr and os.Stdout) implement WriteSyncer.
type WriteSyncer interface {
io.Writer
Sync() error
}
// AddSync converts an io.Writer to a WriteSyncer. It attempts to be
// intelligent: if the concrete type of the io.Writer implements WriteSyncer,
// we'll use the existing Sync method. If it doesn't, we'll add a no-op Sync.
func AddSync(w io.Writer) WriteSyncer {
switch w := w.(type) {
case WriteSyncer:
return w
default:
return writerWrapper{w}
}
}
type lockedWriteSyncer struct {
sync.Mutex
ws WriteSyncer
}
// Lock wraps a WriteSyncer in a mutex to make it safe for concurrent use. In
// particular, *os.Files must be locked before use.
func Lock(ws WriteSyncer) WriteSyncer {
if _, ok := ws.(*lockedWriteSyncer); ok {
// no need to layer on another lock
return ws
}
return &lockedWriteSyncer{ws: ws}
}
func (s *lockedWriteSyncer) Write(bs []byte) (int, error) {
s.Lock()
n, err := s.ws.Write(bs)
s.Unlock()
return n, err
}
func (s *lockedWriteSyncer) Sync() error {
s.Lock()
err := s.ws.Sync()
s.Unlock()
return err
}
type writerWrapper struct {
io.Writer
}
func (w writerWrapper) Sync() error {
return nil
}
type multiWriteSyncer []WriteSyncer
// NewMultiWriteSyncer creates a WriteSyncer that duplicates its writes
// and sync calls, much like io.MultiWriter.
func NewMultiWriteSyncer(ws ...WriteSyncer) WriteSyncer {
if len(ws) == 1 {
return ws[0]
}
// Copy to protect against https://github.com/golang/go/issues/7809
return multiWriteSyncer(append([]WriteSyncer(nil), ws...))
}
// See https://golang.org/src/io/multi.go
// When not all underlying syncers write the same number of bytes,
// the smallest number is returned even though Write() is called on
// all of them.
func (ws multiWriteSyncer) Write(p []byte) (int, error) {
var writeErr error
nWritten := 0
for _, w := range ws {
n, err := w.Write(p)
writeErr = multierr.Append(writeErr, err)
if nWritten == 0 && n != 0 {
nWritten = n
} else if n < nWritten {
nWritten = n
}
}
return nWritten, writeErr
}
func (ws multiWriteSyncer) Sync() error {
var err error
for _, w := range ws {
err = multierr.Append(err, w.Sync())
}
return err
}