commands: add a --field flag to "git bug user" to display users details individually

commands/user.go

@@ -9,6 +9,10 @@ import (
 	"github.com/spf13/cobra"
 )
 
+var (
+	userFieldsQuery string
+)
+
 func runUser(cmd *cobra.Command, args []string) error {
 	backend, err := cache.NewRepoCache(repo)
 	if err != nil {
@@ -32,6 +36,35 @@ func runUser(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
+	if userFieldsQuery != "" {
+		switch userFieldsQuery {
+		case "email":
+			fmt.Printf("%s\n", id.Email())
+		case "humanId":
+			fmt.Printf("%s\n", id.HumanId())
+		case "id":
+			fmt.Printf("%s\n", id.Id())
+		case "lastModification":
+			fmt.Printf("%s\n", id.LastModification().
+				Time().Format("Mon Jan 2 15:04:05 2006 +0200"))
+		case "lastModificationLamport":
+			fmt.Printf("%d\n", id.LastModificationLamport())
+		case "login":
+			fmt.Printf("%s\n", id.Login())
+		case "metadata":
+			for key, value := range id.ImmutableMetadata() {
+				fmt.Printf("%s\n%s\n", key, value)
+			}
+		case "name":
+			fmt.Printf("%s\n", id.Name())
+
+		default:
+			return fmt.Errorf("\nUnsupported field: %s\n", userFieldsQuery)
+		}
+
+		return nil
+	}
+
 	fmt.Printf("Id: %s\n", id.Id())
 	fmt.Printf("Name: %s\n", id.Name())
 	fmt.Printf("Login: %s\n", id.Login())
@@ -58,4 +91,7 @@ var userCmd = &cobra.Command{
 func init() {
 	RootCmd.AddCommand(userCmd)
 	userCmd.Flags().SortFlags = false
+
+	userCmd.Flags().StringVarP(&userFieldsQuery, "field", "f", "",
+		"Select field to display. Valid values are [email,humanId,id,lastModification,lastModificationLamport,login,metadata,name]")
 }

doc/man/git-bug-user.1

@@ -19,6 +19,10 @@ Display or change the user identity.
 
 
 .SH OPTIONS
+.PP
+\fB\-f\fP, \fB\-\-field\fP=""
+    Select field to display. Valid values are [email,humanId,id,lastModification,lastModificationLamport,login,metadata,name]
+
 .PP
 \fB\-h\fP, \fB\-\-help\fP[=false]
     help for user

doc/md/git-bug_user.md

@@ -13,7 +13,8 @@ git-bug user [<user-id>] [flags]
 ### Options
 
 ```
-  -h, --help   help for user
+  -f, --field string   Select field to display. Valid values are [email,humanId,id,lastModification,lastModificationLamport,login,metadata,name]
+  -h, --help           help for user
 ```
 
 ### SEE ALSO

misc/bash_completion/git-bug

@@ -879,6 +879,9 @@ _git-bug_user()
     flags_with_completion=()
     flags_completion=()
 
+    flags+=("--field=")
+    two_word_flags+=("-f")
+    local_nonpersistent_flags+=("--field=")
 
     must_have_one_flag=()
     must_have_one_noun=()