feat: support offline mode (#2128)

* Add: Actions Offline Mode

* Add: Actions Offline Mode

---------

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

pkg/runner/reusable_workflow.go

@@ -102,10 +102,11 @@ func cloneIfRequired(rc *RunContext, remoteReusableWorkflow remoteReusableWorkfl
 		func(ctx context.Context) error {
 			remoteReusableWorkflow.URL = rc.getGithubContext(ctx).ServerURL
 			return git.NewGitCloneExecutor(git.NewGitCloneExecutorInput{
-				URL:   remoteReusableWorkflow.CloneURL(),
-				Ref:   remoteReusableWorkflow.Ref,
-				Dir:   targetDirectory,
-				Token: rc.Config.Token,
+				URL:         remoteReusableWorkflow.CloneURL(),
+				Ref:         remoteReusableWorkflow.Ref,
+				Dir:         targetDirectory,
+				Token:       rc.Config.Token,
+				OfflineMode: rc.Config.ActionOfflineMode,
 			})(ctx)
 		},
 		nil,

pkg/runner/runner.go

@@ -23,6 +23,7 @@ type Config struct {
 	Actor                              string                       // the user that triggered the event
 	Workdir                            string                       // path to working directory
 	ActionCacheDir                     string                       // path used for caching action contents
+	ActionOfflineMode                  bool                         // when offline, use caching action contents
 	BindWorkdir                        bool                         // bind the workdir to the job container
 	EventName                          string                       // name of event to run
 	EventPath                          string                       // path to JSON file to use for event.json in containers

pkg/runner/step_action_remote.go

@@ -106,10 +106,11 @@ func (sar *stepActionRemote) prepareActionExecutor() common.Executor {
 
 		actionDir := fmt.Sprintf("%s/%s", sar.RunContext.ActionCacheDir(), safeFilename(sar.Step.Uses))
 		gitClone := stepActionRemoteNewCloneExecutor(git.NewGitCloneExecutorInput{
-			URL:   sar.remoteAction.CloneURL(),
-			Ref:   sar.remoteAction.Ref,
-			Dir:   actionDir,
-			Token: github.Token,
+			URL:         sar.remoteAction.CloneURL(),
+			Ref:         sar.remoteAction.Ref,
+			Dir:         actionDir,
+			Token:       github.Token,
+			OfflineMode: sar.RunContext.Config.ActionOfflineMode,
 		})
 		var ntErr common.Executor
 		if err := gitClone(ctx); err != nil {