add(cmd): replaced go integrated cli flags with cobra pkg flags

cmd/root.go

@@ -0,0 +1,116 @@
+package cmd
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+
+	"github.com/go-flucky/flucky/pkg/logger"
+	"github.com/spf13/cobra"
+	"github.com/volker-raschek/docker-hub-description-updater/pkg/hub"
+	"github.com/volker-raschek/docker-hub-description-updater/pkg/types"
+)
+
+var (
+	dockerHubNamespace  string
+	dockerHubUser       string
+	dockerHubPassword   string
+	dockerHubRepository string
+	file                string
+
+	loglevel string
+	flogger  logger.Logger = logger.NewDefaultLogger(logger.LogLevelDebug)
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "dhdu",
+	Short: "docker hub description updater (dhdu)",
+	Run: func(cmd *cobra.Command, args []string) {
+
+		switch loglevel {
+		case "debug":
+			flogger = logger.NewDefaultLogger(logger.LogLevelDebug)
+			break
+		case "info":
+			flogger = logger.NewDefaultLogger(logger.LogLevelDebug)
+			break
+		case "warn":
+			flogger = logger.NewDefaultLogger(logger.LogLevelDebug)
+			break
+		case "error":
+			flogger = logger.NewDefaultLogger(logger.LogLevelDebug)
+			break
+		case "fatal":
+			flogger = logger.NewDefaultLogger(logger.LogLevelDebug)
+			break
+		}
+
+		if len(dockerHubUser) <= 0 {
+			flogger.Fatal("No user defined over flags")
+		}
+
+		if len(dockerHubPassword) <= 0 {
+			flogger.Fatal("No password defined over flags")
+		}
+
+		if len(dockerHubNamespace) <= 0 {
+			flogger.Debug("No namespace defined over flags: Use docker username instead")
+			dockerHubNamespace = dockerHubUser
+		}
+
+		if len(dockerHubRepository) <= 0 {
+			flogger.Fatal("No repository defined over flags")
+		}
+
+		if _, err := os.Stat(file); os.IsNotExist(err) && len(file) <= 0 {
+			flogger.Fatal("Can not find file: %v", file)
+		}
+
+		flogger.Debug("Read file %v", file)
+		f, err := ioutil.ReadFile(file)
+		if err != nil {
+			flogger.Fatal("Can not read file %v: %v", file, err)
+		}
+		fullDescription := string(f)
+
+		loginCredentials := &types.LoginCredentials{
+			User:     dockerHubUser,
+			Password: dockerHubPassword,
+		}
+
+		flogger.Debug("Get Token")
+		token, err := hub.GetToken(loginCredentials)
+		if err != nil {
+			log.Fatalf("%v", err)
+		}
+
+		repository := &types.Repository{
+			Name:            dockerHubRepository,
+			Namespcace:      dockerHubNamespace,
+			FullDescription: fullDescription,
+		}
+
+		flogger.Debug("Send Repository Patch")
+		_, err = hub.PatchRepository(repository, token)
+		if err != nil {
+			log.Fatalf("%v", err)
+		}
+
+	},
+}
+
+// Execute a
+func Execute(version string) {
+	rootCmd.Version = version
+
+	rootCmd.Flags().StringVarP(&loglevel, "loglevel", "l", "info", "Loglevel, possible values: debug, info, warn, error, fatal")
+
+	rootCmd.Flags().StringVarP(&dockerHubNamespace, "namespace", "n", "", "Docker Hub Namespace (default \"username\")")
+	rootCmd.Flags().StringVarP(&dockerHubPassword, "password", "p", "", "Docker Hub Password")
+	rootCmd.Flags().StringVarP(&dockerHubRepository, "repository", "r", "", "Docker Hub Repository")
+	rootCmd.Flags().StringVarP(&dockerHubUser, "username", "u", "", "Docker Hub Username")
+
+	rootCmd.Flags().StringVarP(&file, "file", "f", "./README.md", "File which should be uploaded as docker hub description")
+
+	rootCmd.Execute()
+}