restructure to build individual binaries

plugins/repo/src/commands/commands.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	columnize "github.com/ryanuber/columnize"
+)
+
+const (
+	helpHeader = `Usage: dokku repo[:COMMAND]
+
+Runs commands that interact with the app's repo
+
+Additional commands:`
+
+	helpContent = `
+    repo:gc <app>, Runs 'git gc --aggressive' against the application's repo
+    repo:purge-cache <app>, Deletes the contents of the build cache stored in the repository
+`
+)
+
+func main() {
+	flag.Usage = usage
+	flag.Parse()
+
+	cmd := flag.Arg(0)
+	switch cmd {
+	case "repo:help":
+		usage()
+	case "help":
+		fmt.Print(helpContent)
+	default:
+		dokkuNotImplementExitCode, err := strconv.Atoi(os.Getenv("DOKKU_NOT_IMPLEMENTED_EXIT"))
+		if err != nil {
+			fmt.Println("failed to retrieve DOKKU_NOT_IMPLEMENTED_EXIT environment variable")
+			dokkuNotImplementExitCode = 10
+		}
+		os.Exit(dokkuNotImplementExitCode)
+	}
+}
+
+func usage() {
+	config := columnize.DefaultConfig()
+	config.Delim = ","
+	config.Prefix = "\t"
+	config.Empty = ""
+	content := strings.Split(helpContent, "\n")[1:]
+	fmt.Println(helpHeader)
+	fmt.Println(columnize.Format(content, config))
+}