feat: cli option to enable the new action cache (#1954)

* Enable the new action cache

* fix

* fix: CopyTarStream (Docker)

* suppress panic in test

* add a cli option for opt in

* fixups

* add package

* fix

* rc.Config nil in test???

* add feature flag

* patch

* Fix respect --action-cache-path

Co-authored-by: Björn Brauer <zaubernerd@zaubernerd.de>

* add remote reusable workflow to ActionCache

* fixup

---------

Co-authored-by: Björn Brauer <zaubernerd@zaubernerd.de>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

cmd/input.go

@@ -57,6 +57,7 @@ type Input struct {
 	actionCachePath                    string
 	logPrefixJobID                     bool
 	networkName                        string
+	useNewActionCache                  bool
 }
 
 func (i *Input) resolve(path string) string {

cmd/root.go

@@ -98,6 +98,7 @@ func Execute(ctx context.Context, version string) {
 	rootCmd.PersistentFlags().Uint16VarP(&input.cacheServerPort, "cache-server-port", "", 0, "Defines the port where the artifact server listens. 0 means a randomly available port.")
 	rootCmd.PersistentFlags().StringVarP(&input.actionCachePath, "action-cache-path", "", filepath.Join(CacheHomeDir, "act"), "Defines the path where the actions get cached and host workspaces created.")
 	rootCmd.PersistentFlags().StringVarP(&input.networkName, "network", "", "host", "Sets a docker network name. Defaults to host.")
+	rootCmd.PersistentFlags().BoolVarP(&input.useNewActionCache, "use-new-action-cache", "", false, "Enable using the new Action Cache for storing Actions locally")
 	rootCmd.SetArgs(args())
 
 	if err := rootCmd.Execute(); err != nil {
@@ -617,6 +618,11 @@ func newRunCommand(ctx context.Context, input *Input) func(*cobra.Command, []str
 			Matrix:                             matrixes,
 			ContainerNetworkMode:               docker_container.NetworkMode(input.networkName),
 		}
+		if input.useNewActionCache {
+			config.ActionCache = &runner.GoGitActionCache{
+				Path: config.ActionCacheDir,
+			}
+		}
 		r, err := runner.New(config)
 		if err != nil {
 			return err