fix: Correct displaying deprecated flag warnings

cli/app.go

@@ -8,60 +8,35 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/gruntwork-io/terragrunt/cli/commands/info"
-	"github.com/gruntwork-io/terragrunt/cli/commands/stack"
-	"github.com/gruntwork-io/terragrunt/cli/flags"
+	"slices"
 
 	"github.com/gruntwork-io/terragrunt/engine"
 	"github.com/gruntwork-io/terragrunt/internal/os/exec"
 	"github.com/gruntwork-io/terragrunt/internal/os/signal"
 	"github.com/gruntwork-io/terragrunt/telemetry"
 	"github.com/gruntwork-io/terragrunt/tf"
-	"golang.org/x/exp/slices"
 	"golang.org/x/sync/errgroup"
 	"golang.org/x/text/cases"
 	"golang.org/x/text/language"
 
 	"github.com/gruntwork-io/terragrunt/cli/commands"
 	"github.com/gruntwork-io/terragrunt/cli/commands/graph"
-	"github.com/gruntwork-io/terragrunt/cli/commands/hclvalidate"
-	helpCmd "github.com/gruntwork-io/terragrunt/cli/commands/help"
-	versionCmd "github.com/gruntwork-io/terragrunt/cli/commands/version"
 	"github.com/gruntwork-io/terragrunt/cli/flags/global"
 
-	"github.com/gruntwork-io/terragrunt/cli/commands/scaffold"
-
 	"github.com/gruntwork-io/go-commons/version"
 	"github.com/gruntwork-io/terragrunt/config"
 	"github.com/gruntwork-io/terragrunt/internal/errors"
 	"github.com/gruntwork-io/terragrunt/util"
 	hashicorpversion "github.com/hashicorp/go-version"
 
 	"github.com/gruntwork-io/go-commons/env"
-	awsproviderpatch "github.com/gruntwork-io/terragrunt/cli/commands/aws-provider-patch"
-	"github.com/gruntwork-io/terragrunt/cli/commands/catalog"
-	execCmd "github.com/gruntwork-io/terragrunt/cli/commands/exec"
-	graphdependencies "github.com/gruntwork-io/terragrunt/cli/commands/graph-dependencies"
-	"github.com/gruntwork-io/terragrunt/cli/commands/hclfmt"
-	outputmodulegroups "github.com/gruntwork-io/terragrunt/cli/commands/output-module-groups"
-	renderjson "github.com/gruntwork-io/terragrunt/cli/commands/render-json"
 	runCmd "github.com/gruntwork-io/terragrunt/cli/commands/run"
 	runall "github.com/gruntwork-io/terragrunt/cli/commands/run-all"
-	terragruntinfo "github.com/gruntwork-io/terragrunt/cli/commands/terragrunt-info"
-	validateinputs "github.com/gruntwork-io/terragrunt/cli/commands/validate-inputs"
 	"github.com/gruntwork-io/terragrunt/internal/cli"
 	"github.com/gruntwork-io/terragrunt/options"
 	"github.com/gruntwork-io/terragrunt/pkg/log/format/placeholders"
 )
 
-// Command category names.
-const (
-	MainCommandsCategoryName          = "Main commands"
-	CatalogCommandsCategoryName       = "Catalog commands"
-	ConfigurationCommandsCategoryName = "Configuration commands"
-	ShortcutsCommandsCategoryName     = "OpenTofu shortcuts"
-)
-
 func init() {
 	cli.AppVersionTemplate = AppVersionTemplate
 	cli.AppHelpTemplate = AppHelpTemplate
@@ -82,8 +57,8 @@ func NewApp(opts *options.TerragruntOptions) *App {
 	app.Version = version.GetVersion()
 	app.Writer = opts.Writer
 	app.ErrWriter = opts.ErrWriter
-	app.Flags = GlobalFlags(opts)
-	app.Commands = TerragruntCommands(opts).WrapAction(WrapWithTelemetry(opts))
+	app.Flags = global.NewFlagsWithDeprecatedMovedFlags(opts)
+	app.Commands = commands.New(opts).WrapAction(WrapWithTelemetry(opts))
 	app.Before = beforeAction(opts)
 	app.OsExiter = OSExiter
 	app.ExitErrHandler = ExitErrHandler
@@ -150,40 +125,6 @@ func (app *App) RunContext(ctx context.Context, args []string) error {
 	return nil
 }
 
-// GlobalFlags returns global flags. For backward compatibility, the slice contains flags that have been moved to other commands and are hidden from the CLI help.
-func GlobalFlags(opts *options.TerragruntOptions) cli.Flags {
-	globalFlags := global.NewFlags(opts, nil)
-
-	commands := cli.Commands{
-		runCmd.NewCommand(opts),             // run
-		runall.NewCommand(opts),             // runAction-all
-		terragruntinfo.NewCommand(opts),     // terragrunt-info
-		validateinputs.NewCommand(opts),     // validate-inputs
-		graphdependencies.NewCommand(opts),  // graph-dependencies
-		renderjson.NewCommand(opts),         // render-json
-		awsproviderpatch.NewCommand(opts),   // aws-provider-patch
-		outputmodulegroups.NewCommand(opts), // output-module-groups
-		graph.NewCommand(opts),              // graph
-	}
-
-	var seen []string
-
-	for _, cmd := range commands {
-		for _, flag := range cmd.Flags {
-			flagName := util.FirstElement(util.RemoveEmptyElements(flag.Names()))
-
-			if slices.Contains(seen, flagName) {
-				continue
-			}
-
-			seen = append(seen, flagName)
-			globalFlags = append(globalFlags, flags.NewMovedFlag(flag, cmd.Name, flags.StrictControlsByMovedGlobalFlags(opts.StrictControls, cmd.Name)))
-		}
-	}
-
-	return globalFlags
-}
-
 // removeNoColorFlagDuplicates removes one of the `--no-color` or `--terragrunt-no-color` arguments if both are present.
 // We have to do this because `--terragrunt-no-color` is a deprecated alias for `--no-color`,
 // therefore we end up specifying the same flag twice, which causes the `setting the flag multiple times` error.
@@ -208,66 +149,6 @@ func removeNoColorFlagDuplicates(args []string) []string {
 	return filteredArgs
 }
 
-// TerragruntCommands returns the set of Terragrunt commands.
-func TerragruntCommands(opts *options.TerragruntOptions) cli.Commands {
-	mainCommands := cli.Commands{
-		runall.NewCommand(opts),  // run-all
-		runCmd.NewCommand(opts),  // run
-		stack.NewCommand(opts),   // stack
-		graph.NewCommand(opts),   // graph
-		execCmd.NewCommand(opts), // exec
-	}.SetCategory(
-		&cli.Category{
-			Name:  MainCommandsCategoryName,
-			Order: 10, //nolint: mnd
-		},
-	)
-
-	catalogCommands := cli.Commands{
-		catalog.NewCommand(opts),  // catalog
-		scaffold.NewCommand(opts), // scaffold
-	}.SetCategory(
-		&cli.Category{
-			Name:  CatalogCommandsCategoryName,
-			Order: 20, //nolint: mnd
-		},
-	)
-
-	configurationCommands := cli.Commands{
-		graphdependencies.NewCommand(opts),  // graph-dependencies
-		outputmodulegroups.NewCommand(opts), // output-module-groups
-		validateinputs.NewCommand(opts),     // validate-inputs
-		hclvalidate.NewCommand(opts),        // hclvalidate
-		hclfmt.NewCommand(opts),             // hclfmt
-		info.NewCommand(opts),               // info
-		terragruntinfo.NewCommand(opts),     // terragrunt-info
-		renderjson.NewCommand(opts),         // render-json
-		helpCmd.NewCommand(opts),            // help (hidden)
-		versionCmd.NewCommand(opts),         // version (hidden)
-		awsproviderpatch.NewCommand(opts),   // aws-provider-patch (hidden)
-	}.SetCategory(
-		&cli.Category{
-			Name:  ConfigurationCommandsCategoryName,
-			Order: 30, //nolint: mnd
-		},
-	)
-
-	shortcutsCommands := commands.NewShortcutsCommands(opts).SetCategory(
-		&cli.Category{
-			Name:  ShortcutsCommandsCategoryName,
-			Order: 40, //nolint: mnd
-		},
-	)
-
-	allCommands := mainCommands.
-		Merge(catalogCommands...).
-		Merge(configurationCommands...).
-		Merge(shortcutsCommands...).
-		Merge(commands.NewDeprecatedCommands(opts)...)
-
-	return allCommands
-}
-
 // WrapWithTelemetry wraps CLI command execution with setting of telemetry context and labels, if telemetry is disabled, just runAction the command.
 func WrapWithTelemetry(opts *options.TerragruntOptions) func(ctx *cli.Context, action cli.ActionFunc) error {
 	return func(ctx *cli.Context, action cli.ActionFunc) error {

cli/app_test.go

@@ -503,7 +503,7 @@ func setCommandAction(action clipkg.ActionFunc, cmds ...*clipkg.Command) {
 func runAppTest(args []string, opts *options.TerragruntOptions) (*options.TerragruntOptions, error) {
 	emptyAction := func(ctx *clipkg.Context) error { return nil }
 
-	terragruntCommands := cli.TerragruntCommands(opts)
+	terragruntCommands := commands.New(opts)
 	setCommandAction(emptyAction, terragruntCommands...)
 
 	app := clipkg.NewApp()

cli/commands/commands.go

@@ -1,2 +1,101 @@
 // Package commands represents CLI commands.
 package commands
+
+import (
+	"github.com/gruntwork-io/terragrunt/cli/commands/info"
+	"github.com/gruntwork-io/terragrunt/cli/commands/stack"
+	"github.com/gruntwork-io/terragrunt/options"
+
+	"github.com/gruntwork-io/terragrunt/cli/commands/graph"
+	"github.com/gruntwork-io/terragrunt/cli/commands/hclvalidate"
+	helpCmd "github.com/gruntwork-io/terragrunt/cli/commands/help"
+	versionCmd "github.com/gruntwork-io/terragrunt/cli/commands/version"
+
+	"github.com/gruntwork-io/terragrunt/cli/commands/scaffold"
+
+	awsproviderpatch "github.com/gruntwork-io/terragrunt/cli/commands/aws-provider-patch"
+	"github.com/gruntwork-io/terragrunt/cli/commands/catalog"
+	execCmd "github.com/gruntwork-io/terragrunt/cli/commands/exec"
+	graphdependencies "github.com/gruntwork-io/terragrunt/cli/commands/graph-dependencies"
+	"github.com/gruntwork-io/terragrunt/cli/commands/hclfmt"
+	outputmodulegroups "github.com/gruntwork-io/terragrunt/cli/commands/output-module-groups"
+	renderjson "github.com/gruntwork-io/terragrunt/cli/commands/render-json"
+	runCmd "github.com/gruntwork-io/terragrunt/cli/commands/run"
+	runall "github.com/gruntwork-io/terragrunt/cli/commands/run-all"
+	terragruntinfo "github.com/gruntwork-io/terragrunt/cli/commands/terragrunt-info"
+	validateinputs "github.com/gruntwork-io/terragrunt/cli/commands/validate-inputs"
+	"github.com/gruntwork-io/terragrunt/internal/cli"
+)
+
+// Command category names.
+const (
+	// MainCommandsCategoryName represents primary Terragrunt operations like run, run-all.
+	MainCommandsCategoryName = "Main commands"
+	// CatalogCommandsCategoryName represents commands for managing Terragrunt catalogs.
+	CatalogCommandsCategoryName = "Catalog commands"
+	// ConfigurationCommandsCategoryName represents commands for managing Terragrunt configurations.
+	ConfigurationCommandsCategoryName = "Configuration commands"
+	// ShortcutsCommandsCategoryName represents OpenTofu-specific shortcut commands.
+	ShortcutsCommandsCategoryName = "OpenTofu shortcuts"
+)
+
+// New returns the set of Terragrunt commands, grouped into categories.
+// Categories are ordered in increments of 10 for easy insertion of new categories.
+func New(opts *options.TerragruntOptions) cli.Commands {
+	mainCommands := cli.Commands{
+		runCmd.NewCommand(opts),  // run
+		runall.NewCommand(opts),  // run-all
+		stack.NewCommand(opts),   // stack
+		graph.NewCommand(opts),   // graph
+		execCmd.NewCommand(opts), // exec
+	}.SetCategory(
+		&cli.Category{
+			Name:  MainCommandsCategoryName,
+			Order: 10, //nolint: mnd
+		},
+	)
+
+	catalogCommands := cli.Commands{
+		catalog.NewCommand(opts),  // catalog
+		scaffold.NewCommand(opts), // scaffold
+	}.SetCategory(
+		&cli.Category{
+			Name:  CatalogCommandsCategoryName,
+			Order: 20, //nolint: mnd
+		},
+	)
+
+	configurationCommands := cli.Commands{
+		graphdependencies.NewCommand(opts),  // graph-dependencies
+		outputmodulegroups.NewCommand(opts), // output-module-groups
+		validateinputs.NewCommand(opts),     // validate-inputs
+		hclvalidate.NewCommand(opts),        // hclvalidate
+		hclfmt.NewCommand(opts),             // hclfmt
+		info.NewCommand(opts),               // info
+		terragruntinfo.NewCommand(opts),     // terragrunt-info
+		renderjson.NewCommand(opts),         // render-json
+		helpCmd.NewCommand(opts),            // help (hidden)
+		versionCmd.NewCommand(opts),         // version (hidden)
+		awsproviderpatch.NewCommand(opts),   // aws-provider-patch (hidden)
+	}.SetCategory(
+		&cli.Category{
+			Name:  ConfigurationCommandsCategoryName,
+			Order: 30, //nolint: mnd
+		},
+	)
+
+	shortcutsCommands := NewShortcutsCommands(opts).SetCategory(
+		&cli.Category{
+			Name:  ShortcutsCommandsCategoryName,
+			Order: 40, //nolint: mnd
+		},
+	)
+
+	allCommands := mainCommands.
+		Merge(catalogCommands...).
+		Merge(configurationCommands...).
+		Merge(shortcutsCommands...).
+		Merge(NewDeprecatedCommands(opts)...)
+
+	return allCommands
+}

cli/commands/help/command.go

@@ -2,9 +2,12 @@
 package help
 
 import (
-	"github.com/gruntwork-io/terragrunt/cli/flags/global"
+	"os"
+
 	"github.com/gruntwork-io/terragrunt/internal/cli"
+	"github.com/gruntwork-io/terragrunt/internal/errors"
 	"github.com/gruntwork-io/terragrunt/options"
+	"github.com/gruntwork-io/terragrunt/pkg/log"
 )
 
 const (
@@ -17,7 +20,46 @@ func NewCommand(opts *options.TerragruntOptions) *cli.Command {
 		Usage:  "Show help.",
 		Hidden: true,
 		Action: func(ctx *cli.Context) error {
-			return global.HelpAction(ctx, opts)
+			return Action(ctx, opts)
 		},
 	}
 }
+
+func Action(ctx *cli.Context, opts *options.TerragruntOptions) error {
+	var (
+		args = ctx.Args()
+		cmds = ctx.App.Commands
+	)
+
+	if opts.Logger.Level() >= log.DebugLevel {
+		// https: //github.com/urfave/cli/blob/f035ffaa3749afda2cd26fb824aa940747297ef1/help.go#L401
+		if err := os.Setenv("CLI_TEMPLATE_ERROR_DEBUG", "1"); err != nil {
+			return errors.Errorf("failed to set CLI_TEMPLATE_ERROR_DEBUG environment variable: %w", err)
+		}
+	}
+
+	if args.CommandName() == "" {
+		return cli.ShowAppHelp(ctx)
+	}
+
+	const maxCommandDepth = 1000 // Maximum depth of nested subcommands
+
+	for i := 0; i < maxCommandDepth && args.Len() > 0; i++ {
+		cmdName := args.CommandName()
+
+		cmd := cmds.Get(cmdName)
+		if cmd == nil {
+			break
+		}
+
+		args = args.Remove(cmdName)
+		cmds = cmd.Subcommands
+		ctx = ctx.NewCommandContext(cmd, args)
+	}
+
+	if ctx.Command != nil {
+		return cli.NewExitError(cli.ShowCommandHelp(ctx), cli.ExitCodeGeneralError)
+	}
+
+	return cli.NewExitError(errors.New(cli.InvalidCommandNameError(args.First())), cli.ExitCodeGeneralError)
+}

cli/commands/run/flags.go

@@ -371,7 +371,6 @@ func NewFlags(opts *options.TerragruntOptions, prefix flags.Prefix) cli.Flags {
 				Name:    terragruntPrefix.FlagName(DeprecatedIncludeModulePrefixFlagName),
 				EnvVars: terragruntPrefix.EnvVars(DeprecatedIncludeModulePrefixFlagName),
 				Usage:   "When this flag is set output from Terraform sub-commands is prefixed with module path.",
-				Hidden:  true,
 				Action: func(_ *cli.Context, _ bool) error {
 					opts.Logger.Warnf("The %q flag is deprecated. Use the functionality-inverted %q flag instead. By default, Terraform/OpenTofu output is integrated into the Terragrunt log, which prepends additional data, such as timestamps and prefixes, to log entries.", DeprecatedIncludeModulePrefixFlagName, TFForwardStdoutFlagName)
 

cli/commands/version/command.go

@@ -2,7 +2,6 @@
 package version
 
 import (
-	"github.com/gruntwork-io/terragrunt/cli/flags/global"
 	"github.com/gruntwork-io/terragrunt/internal/cli"
 	"github.com/gruntwork-io/terragrunt/options"
 )
@@ -17,7 +16,11 @@ func NewCommand(opts *options.TerragruntOptions) *cli.Command {
 		Usage:  "Show terragrunt version.",
 		Hidden: true,
 		Action: func(ctx *cli.Context) error {
-			return cli.NewExitError(global.VersionAction(ctx, opts), 0)
+			return cli.NewExitError(Action(ctx), 0)
 		},
 	}
 }
+
+func Action(ctx *cli.Context) error {
+	return cli.ShowVersion(ctx)
+}