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

Makefile

@@ -2,8 +2,7 @@
 # If no version is specified as a parameter of make, the last git hash
 # value is taken.
 # VERSION?=$(shell git describe --abbrev=0)+hash.$(shell git rev-parse --short HEAD)
-VERSION?=$(shell git rev-parse --short HEAD)
+VERSION?=$(shell git describe --abbrev=0)+hash.$(shell git rev-parse --short HEAD)
-RELEASE?=1
 
 # EXECUTABLE
 # Executable binary which should be compiled for different architecures
@@ -62,19 +61,22 @@ README_FILE:=README.md
 # BINARIES
 # ==============================================================================
 PHONY:=all
+
+${EXECUTABLE}: bin/tmp/${EXECUTABLE}
+
 all: ${EXECUTABLE_TARGETS}
 
 bin/linux/amd64/$(EXECUTABLE): bindata
-	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -ldflags "-X main.version=${VERSION}" -o "$@"
+	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -ldflags "-X main.version=${VERSION}" -o "${@}"
 
 bin/linux/arm/5/$(EXECUTABLE): bindata
-	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -ldflags "-X main.version=${VERSION}" -o "$@"
+	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -ldflags "-X main.version=${VERSION}" -o "${@}"
 
 bin/linux/arm/7/$(EXECUTABLE): bindata
-	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -ldflags "-X main.version=${VERSION}" -o "$@"
+	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -ldflags "-X main.version=${VERSION}" -o "${@}"
 
 bin/tmp/${EXECUTABLE}: bindata
-	go build -ldflags "-X main.version=${VERSION}" -o "$@"
+	go build -ldflags "-X main.version=${VERSION}" -o "${@}"
 
 # BINDATA
 # ==============================================================================

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()
+}

go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/Masterminds/semver v1.5.0
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/go-flucky/flucky v0.0.0-20190714170626-0dd156f480be
+	github.com/spf13/cobra v0.0.3
 	github.com/stretchr/testify v1.4.0
 	github.com/volker-raschek/go-logger v0.0.0-20190924133618-4a42099e655f
 )

go.sum

@@ -18,7 +18,9 @@ github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
+github.com/spf13/cobra v0.0.3 h1:ZlrZ4XsMRm04Fr5pSFxBgfND2EBVa1nLpiy1stUsX/8=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
+github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/stianeikeland/go-rpio v4.2.0+incompatible/go.mod h1:Sh81rdJwD96E2wja2Gd7rrKM+XZ9LrwvN2w4IXrqLR8=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

main.go

@@ -1,122 +1,13 @@
 package main
 
 import (
-	"flag"
+	"github.com/volker-raschek/docker-hub-description-updater/cmd"
-	"io/ioutil"
-	"log"
-
-	"github.com/Masterminds/semver"
-	"github.com/go-flucky/flucky/pkg/logger"
-	"github.com/volker-raschek/docker-hub-description-updater/pkg/hub"
-	"github.com/volker-raschek/docker-hub-description-updater/pkg/types"
 )
 
 var (
-	dockerHubAPI        string = "https://hub.docker.com/v2"
-	dockerHubUser       string
-	dockerHubPassword   string
-	dockerHubNamespace  string
-	dockerHubRepository string
-
-	shortDescription     string
-	shortDescriptionFile string
-	fullDescription      string
-	fullDescriptionFile  string
-
-	semVersion *semver.Version
 	version string
-
-	flogger logger.Logger
 )
 
-func init() {
-	// sVersion, err := semver.NewVersion(version)
-	// if err != nil {
-	// 	log.Fatalf("Can not create new semantic version from %v: %v", version, err)
-	// }
-	// semVersion = sVersion
-
-	flogger = logger.NewDefaultLogger(logger.LogLevelDebug)
-}
-
 func main() {
-
+	cmd.Execute(version)
-	flogger.Debug("Parse flags")
-	flag.StringVar(&dockerHubUser, "user", "", "Docker Hub Username")
-	flag.StringVar(&dockerHubPassword, "password", "", "Docker Hub Password")
-	flag.StringVar(&dockerHubNamespace, "namespace", "", "Docker Hub Namespace")
-	flag.StringVar(&dockerHubRepository, "repository", "", "Docker Hub Repository")
-	flag.StringVar(&shortDescription, "short-description", "", "Short description of the repository ")
-	flag.StringVar(&shortDescriptionFile, "short-description-file", "", "Short description of the repository. Override short-description if defined.")
-	flag.StringVar(&fullDescription, "full-description", "", "Full description of the repository")
-	flag.StringVar(&fullDescriptionFile, "full-description-file", "./README.md", "Full description of the repository. Override full-description if defined.")
-	flag.Parse()
-
-	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.Fatal("No namespace defined over flags")
-	}
-
-	if len(dockerHubRepository) <= 0 {
-		flogger.Fatal("No repository defined over flags")
-	}
-
-	hub.SetLogger(flogger)
-
-	loginCredentials := &types.LoginCredentials{
-		User:     dockerHubUser,
-		Password: dockerHubPassword,
-	}
-
-	actualShortDescription := ""
-	if len(shortDescription) > 0 {
-		actualShortDescription = shortDescription
-		flogger.Debug("Select short description from flag")
-	} else if len(shortDescriptionFile) > 0 {
-		f, err := ioutil.ReadFile(shortDescriptionFile)
-		if err != nil {
-			log.Fatalf("Can not read file %v", shortDescriptionFile)
-		}
-		actualShortDescription = string(f)
-		flogger.Debug("Select short description from file")
-	}
-
-	actualFullDescription := ""
-	if len(fullDescription) > 0 {
-		actualFullDescription = fullDescription
-		flogger.Debug("Select full description from flag")
-	} else if len(fullDescriptionFile) > 0 {
-		f, err := ioutil.ReadFile(fullDescriptionFile)
-		if err != nil {
-			log.Fatalf("Can not read file %v", fullDescriptionFile)
-		}
-		actualFullDescription = string(f)
-		flogger.Debug("Select full description from file")
-	}
-
-	flogger.Debug("Get Token")
-	token, err := hub.GetToken(loginCredentials)
-	if err != nil {
-		log.Fatalf("%v", err)
-	}
-
-	repository := &types.Repository{
-		Name:            dockerHubRepository,
-		Namespcace:      dockerHubNamespace,
-		Description:     actualShortDescription,
-		FullDescription: actualFullDescription,
-	}
-
-	flogger.Debug("Send Repository Patch")
-	_, err = hub.PatchRepository(repository, token)
-	if err != nil {
-		log.Fatalf("%v", err)
-	}
 }