chore(cli): use option source name for deprecation warnings (#15581)

Closes #15568.

cli/root.go

@@ -325,6 +325,15 @@ func (r *RootCmd) Command(subcommands []*serpent.Command) (*serpent.Command, err
 		}
 	})
 
+	// Add the PrintDeprecatedOptions middleware to all commands.
+	cmd.Walk(func(cmd *serpent.Command) {
+		if cmd.Middleware == nil {
+			cmd.Middleware = PrintDeprecatedOptions()
+		} else {
+			cmd.Middleware = serpent.Chain(cmd.Middleware, PrintDeprecatedOptions())
+		}
+	})
+
 	if r.agentURL == nil {
 		r.agentURL = new(url.URL)
 	}
@@ -1307,3 +1316,65 @@ func headerTransport(ctx context.Context, serverURL *url.URL, header []string, h
 	}
 	return transport, nil
 }
+
+// printDeprecatedOptions loops through all command options, and prints
+// a warning for usage of deprecated options.
+func PrintDeprecatedOptions() serpent.MiddlewareFunc {
+	return func(next serpent.HandlerFunc) serpent.HandlerFunc {
+		return func(inv *serpent.Invocation) error {
+			opts := inv.Command.Options
+			// Print deprecation warnings.
+			for _, opt := range opts {
+				if opt.UseInstead == nil {
+					continue
+				}
+
+				if opt.ValueSource == serpent.ValueSourceNone || opt.ValueSource == serpent.ValueSourceDefault {
+					continue
+				}
+
+				var warnStr strings.Builder
+				_, _ = warnStr.WriteString(translateSource(opt.ValueSource, opt))
+				_, _ = warnStr.WriteString(" is deprecated, please use ")
+				for i, use := range opt.UseInstead {
+					_, _ = warnStr.WriteString(translateSource(opt.ValueSource, use))
+					if i != len(opt.UseInstead)-1 {
+						_, _ = warnStr.WriteString(" and ")
+					}
+				}
+				_, _ = warnStr.WriteString(" instead.\n")
+
+				cliui.Warn(inv.Stderr,
+					warnStr.String(),
+				)
+			}
+
+			return next(inv)
+		}
+	}
+}
+
+// translateSource provides the name of the source of the option, depending on the
+// supplied target ValueSource.
+func translateSource(target serpent.ValueSource, opt serpent.Option) string {
+	switch target {
+	case serpent.ValueSourceFlag:
+		return fmt.Sprintf("`--%s`", opt.Flag)
+	case serpent.ValueSourceEnv:
+		return fmt.Sprintf("`%s`", opt.Env)
+	case serpent.ValueSourceYAML:
+		return fmt.Sprintf("`%s`", fullYamlName(opt))
+	default:
+		return opt.Name
+	}
+}
+
+func fullYamlName(opt serpent.Option) string {
+	var full strings.Builder
+	for _, name := range opt.Group.Ancestry() {
+		_, _ = full.WriteString(name.YAML)
+		_, _ = full.WriteString(".")
+	}
+	_, _ = full.WriteString(opt.YAML)
+	return full.String()
+}

cli/server.go

@@ -294,7 +294,6 @@ func (r *RootCmd) Server(newAPI func(context.Context, *coderd.Options) (*coderd.
 		Options: opts,
 		Middleware: serpent.Chain(
 			WriteConfigMW(vals),
-			PrintDeprecatedOptions(),
 			serpent.RequireNArgs(0),
 		),
 		Handler: func(inv *serpent.Invocation) error {
@@ -1240,41 +1239,6 @@ func templateHelpers(options *coderd.Options) map[string]any {
 	}
 }
 
-// printDeprecatedOptions loops through all command options, and prints
-// a warning for usage of deprecated options.
-func PrintDeprecatedOptions() serpent.MiddlewareFunc {
-	return func(next serpent.HandlerFunc) serpent.HandlerFunc {
-		return func(inv *serpent.Invocation) error {
-			opts := inv.Command.Options
-			// Print deprecation warnings.
-			for _, opt := range opts {
-				if opt.UseInstead == nil {
-					continue
-				}
-
-				if opt.ValueSource == serpent.ValueSourceNone || opt.ValueSource == serpent.ValueSourceDefault {
-					continue
-				}
-
-				warnStr := opt.Name + " is deprecated, please use "
-				for i, use := range opt.UseInstead {
-					warnStr += use.Name + " "
-					if i != len(opt.UseInstead)-1 {
-						warnStr += "and "
-					}
-				}
-				warnStr += "instead.\n"
-
-				cliui.Warn(inv.Stderr,
-					warnStr,
-				)
-			}
-
-			return next(inv)
-		}
-	}
-}
-
 // writeConfigMW will prevent the main command from running if the write-config
 // flag is set. Instead, it will marshal the command options to YAML and write
 // them to stdout.

enterprise/cli/proxyserver.go

@@ -110,7 +110,6 @@ func (r *RootCmd) proxyServer() *serpent.Command {
 		Options: opts,
 		Middleware: serpent.Chain(
 			cli.WriteConfigMW(cfg),
-			cli.PrintDeprecatedOptions(),
 			serpent.RequireNArgs(0),
 		),
 		Handler: func(inv *serpent.Invocation) error {