1 files changed, 89 insertions, 0 deletions
diff --git a/commands/user/user.go b/commands/user/user.go
new file mode 100644
index 00000000..191fb828
--- /dev/null
+++ b/commands/user/user.go
@@ -0,0 +1,89 @@
+package usercmd
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/spf13/cobra"
+
+	json2 "github.com/MichaelMure/git-bug/commands/cmdjson"
+
+	"github.com/MichaelMure/git-bug/cache"
+	"github.com/MichaelMure/git-bug/commands/completion"
+	"github.com/MichaelMure/git-bug/commands/execenv"
+	"github.com/MichaelMure/git-bug/util/colors"
+)
+
+type userOptions struct {
+	format string
+}
+
+func NewUserCommand() *cobra.Command {
+	env := execenv.NewEnv()
+	options := userOptions{}
+
+	cmd := &cobra.Command{
+		Use:     "user",
+		Short:   "List identities",
+		PreRunE: execenv.LoadBackend(env),
+		RunE: execenv.CloseBackend(env, func(cmd *cobra.Command, args []string) error {
+			return runUser(env, options)
+		}),
+	}
+
+	cmd.AddCommand(newUserNewCommand())
+	cmd.AddCommand(newUserShowCommand())
+	cmd.AddCommand(newUserAdoptCommand())
+
+	flags := cmd.Flags()
+	flags.SortFlags = false
+
+	flags.StringVarP(&options.format, "format", "f", "default",
+		"Select the output formatting style. Valid values are [default,json]")
+	cmd.RegisterFlagCompletionFunc("format", completion.From([]string{"default", "json"}))
+
+	return cmd
+}
+
+func runUser(env *execenv.Env, opts userOptions) error {
+	ids := env.Backend.AllIdentityIds()
+	var users []*cache.IdentityExcerpt
+	for _, id := range ids {
+		user, err := env.Backend.ResolveIdentityExcerpt(id)
+		if err != nil {
+			return err
+		}
+		users = append(users, user)
+	}
+
+	switch opts.format {
+	case "json":
+		return userJsonFormatter(env, users)
+	case "default":
+		return userDefaultFormatter(env, users)
+	default:
+		return fmt.Errorf("unknown format %s", opts.format)
+	}
+}
+
+func userDefaultFormatter(env *execenv.Env, users []*cache.IdentityExcerpt) error {
+	for _, user := range users {
+		env.Out.Printf("%s %s\n",
+			colors.Cyan(user.Id.Human()),
+			user.DisplayName(),
+		)
+	}
+
+	return nil
+}
+
+func userJsonFormatter(env *execenv.Env, users []*cache.IdentityExcerpt) error {
+	jsonUsers := make([]json2.Identity, len(users))
+	for i, user := range users {
+		jsonUsers[i] = json2.NewIdentityFromExcerpt(user)
+	}
+
+	jsonObject, _ := json.MarshalIndent(jsonUsers, "", "    ")
+	env.Out.Printf("%s\n", jsonObject)
+	return nil
+}