MM-21722 - Repository synchronization tool (#86)

build/sync/main.go

@@ -0,0 +1,85 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"sigs.k8s.io/yaml"
+
+	"github.com/mattermost/mattermost-plugin-starter-template/build/sync/plan"
+)
+
+func main() {
+	verbose := flag.Bool("verbose", false, "enable verbose output")
+	flag.Usage = func() {
+		fmt.Fprintf(flag.CommandLine.Output(), "Update a pluging directory with /mattermost-plugin-starter-template/.\n")
+		fmt.Fprintf(flag.CommandLine.Output(), "Usage of %s:\n", os.Args[0])
+		fmt.Fprintf(flag.CommandLine.Output(), "%s <plan.yml> <plugin_directory>\n", os.Args[0])
+		flag.PrintDefaults()
+	}
+
+	flag.Parse()
+	// TODO: implement proper command line parameter parsing.
+	if len(os.Args) != 3 {
+		fmt.Fprintf(os.Stderr, "running: \n $ sync [plan.yaml] [plugin path]\n")
+		os.Exit(1)
+	}
+
+	syncPlan, err := readPlan(os.Args[1])
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "coud not load plan: %s\n", err)
+		os.Exit(1)
+	}
+
+	srcDir, err := os.Getwd()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to get current directory: %s\n", err)
+		os.Exit(1)
+	}
+
+	trgDir, err := filepath.Abs(os.Args[2])
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "could not determine target directory: %s\n", err)
+		os.Exit(1)
+	}
+
+	srcRepo, err := plan.GetRepoSetup(srcDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%s\n", err)
+		os.Exit(1)
+	}
+	trgRepo, err := plan.GetRepoSetup(trgDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%s\n", err)
+		os.Exit(1)
+	}
+
+	planSetup := plan.Setup{
+		Source:         srcRepo,
+		Target:         trgRepo,
+		VerboseLogging: *verbose,
+	}
+	err = syncPlan.Execute(planSetup)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%s\n", err)
+		os.Exit(1)
+	}
+}
+
+func readPlan(path string) (*plan.Plan, error) {
+	raw, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read plan file %q: %v", path, err)
+	}
+
+	var p plan.Plan
+	err = yaml.Unmarshal(raw, &p)
+	if err != nil {
+		return nil, fmt.Errorf("failed to unmarshal plan yaml: %v", err)
+	}
+
+	return &p, err
+}