fix local workflow for `act_runner exec` (#63)

by the way, export `ACT_SKIP_CHECKOUT` as a env verb for user to do some special config of local test.

example usage:

7a3ab0fdbc

Reviewed-on: https://gitea.com/gitea/act/pulls/63
Reviewed-by: Jason Song <i@wolfogre.com>
Co-authored-by: a1012112796 <1012112796@qq.com>
Co-committed-by: a1012112796 <1012112796@qq.com>

pkg/runner/reusable_workflow.go

@@ -17,6 +17,18 @@ import (
 )
 
 func newLocalReusableWorkflowExecutor(rc *RunContext) common.Executor {
+	if !rc.Config.NoSkipCheckout {
+		fullPath := rc.Run.Job().Uses
+
+		fileName := path.Base(fullPath)
+		workflowDir := strings.TrimSuffix(fullPath, path.Join("/", fileName))
+		workflowDir = strings.TrimPrefix(workflowDir, "./")
+
+		return common.NewPipelineExecutor(
+			newReusableWorkflowExecutor(rc, workflowDir, fileName),
+		)
+	}
+
 	// ./.gitea/workflows/wf.yml -> .gitea/workflows/wf.yml
 	trimmedUses := strings.TrimPrefix(rc.Run.Job().Uses, "./")
 	// uses string format is {owner}/{repo}/.{git_platform}/workflows/{filename}@{ref}

pkg/runner/run_context.go

@@ -82,6 +82,11 @@ func (rc *RunContext) GetEnv() map[string]string {
 		}
 	}
 	rc.Env["ACT"] = "true"
+
+	if !rc.Config.NoSkipCheckout {
+		rc.Env["ACT_SKIP_CHECKOUT"] = "true"
+	}
+
 	return rc.Env
 }