cmd/streamdata: show sub-command

This displays metadata by ident.

Signed-off-by: Yonah <contrib@gensokyo.uk>

cmd/streamdata/main.go

@@ -174,6 +174,37 @@ func main() {
 		},
 	)
 
+	c.NewCommand(
+		"show",
+		"Display metadata of a VOD by identifier",
+		func(args []string) error {
+			if channel == nil {
+				return errors.New("show requires a channel selected")
+			}
+
+			if len(args) != 1 {
+				return errors.New("show requires 1 argument")
+			}
+
+			var ident streamdata.Ident
+			if err := ident.UnmarshalText(
+				unsafe.Slice(unsafe.StringData(args[0]), len(args[0])),
+			); err != nil {
+				return err
+			}
+
+			if v, err := channel.Load(&ident); err != nil {
+				if !errors.Is(err, os.ErrNotExist) {
+					return err
+				}
+				return syscall.ENOENT
+			} else {
+				printVOD(v)
+				return nil
+			}
+		},
+	)
+
 	c.MustParse(os.Args[1:], func(err error) {
 		if channel != nil {
 			if closeErr := channel.Close(); closeErr != nil {