Remove the description and maintainer flag on init

As per the UX study we remove these two flags to make init simpler.
The maintainer is populated with the name of the current user.

Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>

Author: rumpl

e2e/commands_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
+	"os/user"
 	"path/filepath"
 	"regexp"
 	"strings"
@@ -76,25 +77,30 @@ func TestInit(t *testing.T) {
 	cmd, cleanup := dockerCli.createTestCmd()
 	defer cleanup()
 
+	userData, _ := user.Current()
+	currentUser := ""
+	if userData != nil {
+		currentUser = userData.Username
+	}
+
 	composeData := `version: "3.2"
 services:
   nginx:
     image: nginx:latest
     command: nginx $NGINX_ARGS ${NGINX_DRY_RUN}
 `
-	meta := `# Version of the application
+	meta := fmt.Sprintf(`# Version of the application
 version: 0.1.0
 # Name of the application
 name: app-test
 # A short description of the application
-description: my cool app
+description: 
 # List of application maintainers with name and email for each
 maintainers:
-  - name: dev1
+  - name: %s
     email: 
-  - name: dev2
-    email: dev2@example.com
-`
+`, currentUser)
+
 	envData := "# some comment\nNGINX_DRY_RUN=-t"
 	tmpDir := fs.NewDir(t, "app_input",
 		fs.WithFile(internal.ComposeFileName, composeData),
@@ -108,10 +114,7 @@ maintainers:
 	cmd.Dir = tmpDir.Path()
 	cmd.Command = dockerCli.Command("app",
 		"init", testAppName,
-		"--compose-file", tmpDir.Join(internal.ComposeFileName),
-		"--description", "my cool app",
-		"--maintainer", "dev1",
-		"--maintainer", "dev2:dev2@example.com")
+		"--compose-file", tmpDir.Join(internal.ComposeFileName))
 	stdOut := icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined()
 	golden.Assert(t, stdOut, "init-output.golden")
 

internal/commands/init.go

@@ -11,19 +11,17 @@ import (
 
 var (
 	initComposeFile string
-	initDescription string
-	initMaintainers []string
 )
 
 func initCmd(dockerCli command.Cli) *cobra.Command {
 	cmd := &cobra.Command{
-		Use:     "init APP_NAME [--compose-file COMPOSE_FILE] [--description DESCRIPTION] [--maintainer NAME:EMAIL ...] [OPTIONS]",
+		Use:     "init APP_NAME [--compose-file COMPOSE_FILE] [OPTIONS]",
 		Short:   "Initialize Docker Application definition",
 		Long:    `Start building a Docker Application package. If there is a docker-compose.yml file in the current directory it will be copied and used.`,
-		Example: `$ docker app init myapp --description "a useful description"`,
+		Example: `$ docker app init myapp`,
 		Args:    cli.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
-			created, err := packager.Init(args[0], initComposeFile, initDescription, initMaintainers)
+			created, err := packager.Init(args[0], initComposeFile)
 			if err != nil {
 				return err
 			}
@@ -32,7 +30,5 @@ func initCmd(dockerCli command.Cli) *cobra.Command {
 		},
 	}
 	cmd.Flags().StringVar(&initComposeFile, "compose-file", "", "Compose file to use as application base (optional)")
-	cmd.Flags().StringVar(&initDescription, "description", "", "Human readable description of your application (optional)")
-	cmd.Flags().StringArrayVar(&initMaintainers, "maintainer", []string{}, "Name and email address of person responsible for the application (name:email) (optional)")
 	return cmd
 }

internal/packager/init.go

@@ -27,7 +27,7 @@ import (
 // Init is the entrypoint initialization function.
 // It generates a new application definition based on the provided parameters
 // and returns the path to the created application definition.
-func Init(name string, composeFile string, description string, maintainers []string) (string, error) {
+func Init(name string, composeFile string) (string, error) {
 	if err := internal.ValidateAppName(name); err != nil {
 		return "", err
 	}
@@ -41,7 +41,7 @@ func Init(name string, composeFile string, description string, maintainers []str
 			os.RemoveAll(dirName)
 		}
 	}()
-	if err = writeMetadataFile(name, dirName, description, maintainers); err != nil {
+	if err = writeMetadataFile(name, dirName); err != nil {
 		return "", err
 	}
 
@@ -183,8 +183,8 @@ description: {{ .Description }}
 #    email: john@doe.com
 {{ end }}`
 
-func writeMetadataFile(name, dirName string, description string, maintainers []string) error {
-	meta := newMetadata(name, description, maintainers)
+func writeMetadataFile(name, dirName string) error {
+	meta := newMetadata(name)
 	tmpl, err := template.New("metadata").Parse(metaTemplate)
 	if err != nil {
 		return errors.Wrap(err, "internal error parsing metadata template")
@@ -196,34 +196,14 @@ func writeMetadataFile(name, dirName string, description string, maintainers []s
 	return ioutil.WriteFile(filepath.Join(dirName, internal.MetadataFileName), resBuf.Bytes(), 0644)
 }
 
-// parseMaintainersData parses user-provided data through the maintainers flag and returns
-// a slice of Maintainer instances
-func parseMaintainersData(maintainers []string) []metadata.Maintainer {
-	var res []metadata.Maintainer
-	for _, m := range maintainers {
-		ne := strings.SplitN(m, ":", 2)
-		var email string
-		if len(ne) > 1 {
-			email = ne[1]
-		}
-		res = append(res, metadata.Maintainer{Name: ne[0], Email: email})
-	}
-	return res
-}
-
-func newMetadata(name string, description string, maintainers []string) metadata.AppMetadata {
+func newMetadata(name string) metadata.AppMetadata {
 	res := metadata.AppMetadata{
-		Version:     "0.1.0",
-		Name:        name,
-		Description: description,
-	}
-	if len(maintainers) == 0 {
-		userData, _ := user.Current()
-		if userData != nil && userData.Username != "" {
-			res.Maintainers = []metadata.Maintainer{{Name: userData.Username}}
-		}
-	} else {
-		res.Maintainers = parseMaintainersData(maintainers)
+		Version: "0.1.0",
+		Name:    name,
+	}
+	userData, _ := user.Current()
+	if userData != nil && userData.Username != "" {
+		res.Maintainers = []metadata.Maintainer{{Name: userData.Username}}
 	}
 	return res
 }

internal/packager/init_test.go

@@ -1,10 +1,11 @@
 package packager
 
 import (
+	"fmt"
+	"os/user"
 	"testing"
 
 	"github.com/docker/app/internal"
-	"github.com/docker/app/types/metadata"
 	"gotest.tools/assert"
 	"gotest.tools/fs"
 )
@@ -159,46 +160,29 @@ func TestWriteMetadataFile(t *testing.T) {
 	tmpdir := fs.NewDir(t, appName)
 	defer tmpdir.Remove()
 
-	err := writeMetadataFile(appName, tmpdir.Path(), "", []string{"dev:dev@example.com"})
+	err := writeMetadataFile(appName, tmpdir.Path())
 	assert.NilError(t, err)
 
-	data := `# Version of the application
+	userData, _ := user.Current()
+	currentUser := ""
+	if userData != nil {
+		currentUser = userData.Username
+	}
+
+	data := fmt.Sprintf(`# Version of the application
 version: 0.1.0
 # Name of the application
 name: writemetadata_test
 # A short description of the application
 description: 
 # List of application maintainers with name and email for each
 maintainers:
-  - name: dev
-    email: dev@example.com
-`
+  - name: %s
+    email: 
+`, currentUser)
 
 	manifest := fs.Expected(t,
 		fs.WithFile(internal.MetadataFileName, data, fs.WithMode(0644)),
 	)
 	assert.Assert(t, fs.Equal(tmpdir.Path(), manifest))
 }
-
-func TestParseMaintainersData(t *testing.T) {
-	input := []string{
-		"sakuya:sakuya.izayoi@touhou.jp",
-		"marisa.kirisame",
-		"Reimu Hakurei",
-		"Hong Meiling:kurenai.misuzu@touhou.jp",
-		"    :    ",
-		"perfect:cherry:blossom",
-	}
-
-	expectedOutput := []metadata.Maintainer{
-		{Name: "sakuya", Email: "sakuya.izayoi@touhou.jp"},
-		{Name: "marisa.kirisame", Email: ""},
-		{Name: "Reimu Hakurei", Email: ""},
-		{Name: "Hong Meiling", Email: "kurenai.misuzu@touhou.jp"},
-		{Name: "    ", Email: "    "},
-		{Name: "perfect", Email: "cherry:blossom"},
-	}
-	output := parseMaintainersData(input)
-
-	assert.DeepEqual(t, output, expectedOutput)
-}