feat: export workflow to a file in run directory

ghx/context/execution.go

@@ -45,6 +45,18 @@ func (c *Context) UnsetWorkflow(result RunResult) {
  if err := fs.WriteJSONFile(filepath.Join(dir, "workflow_run.json"), report); err != nil {
  log.Errorf("failed to write workflow run", "error", err, "workflow", c.Execution.WorkflowRun.Workflow.Name)
  }
+
+ // copy file to the workflow run directory
+ var (
+ src = c.Execution.WorkflowRun.Workflow.Path
+ dst = filepath.Join(dir, "workflow.yaml")
+ )
+
+ // copy the workflow file to the workflow run directory to keep the workflow file as it is to prevent potential
+ // changes when marshaling the workflow file again from context
+ if err := fs.CopyFile(src, dst); err != nil {
+ log.Errorf("failed to write workflow", "error", err, "workflow", c.Execution.WorkflowRun.Workflow.Name)
+ }
 }
 
 // SetJob sets the given job to the execution context.

internal/fs/fs.go

@@ -2,6 +2,7 @@ package fs
 
 import (
  "encoding/json"
+ "io"
  "os"
  "path/filepath"
 
@@ -114,3 +115,40 @@ func ReadYAMLFile[T any](file string, val *T) error {
 
  return yaml.Unmarshal(data, val)
 }
+
+// CopyFile copies the given file from src to dst.
+func CopyFile(src, dst string) error {
+ in, err := os.Open(src)
+ if err != nil {
+ return err
+ }
+ defer in.Close()
+
+ out, err := os.Create(dst)
+ if err != nil {
+ return err
+ }
+ defer out.Close()
+
+ _, err = io.Copy(out, in)
+ if err != nil {
+ return err
+ }
+
+ err = out.Sync()
+ if err != nil {
+ return err
+ }
+
+ s, err := os.Stat(src)
+ if err != nil {
+ return err
+ }
+
+ err = os.Chmod(dst, s.Mode())
+ if err != nil {
+ return err
+ }
+
+ return nil
+}