fix: prune stale remote ref for self-hosted runners

Author: peter-evans

dist/index.js

@@ -101,6 +101,12 @@ function splitLines(multilineString) {
 }
 function createOrUpdateBranch(git, commitMessage, base, branch, branchRemoteName, signoff) {
     return __awaiter(this, void 0, void 0, function* () {
+        // For self-hosted runners the repository state persists between runs.
+        // This prunes the stale remote ref when the pull request branch was
+        // deleted after being merged or closed. Without this the push using
+        // '--force-with-lease' fails due to "stale info."
+        // https://github.com/peter-evans/create-pull-request/issues/633
+        yield git.exec(['remote', 'prune', 'origin']);
         // Get the working base.
         // When a ref, it may or may not be the actual base.
         // When a commit, we must rebase onto the actual base.

src/create-or-update-branch.ts

@@ -93,6 +93,13 @@ export async function createOrUpdateBranch(
   branchRemoteName: string,
   signoff: boolean
 ): Promise<CreateOrUpdateBranchResult> {
+  // For self-hosted runners the repository state persists between runs.
+  // This prunes the stale remote ref when the pull request branch was
+  // deleted after being merged or closed. Without this the push using
+  // '--force-with-lease' fails due to "stale info."
+  // https://github.com/peter-evans/create-pull-request/issues/633
+  await git.exec(['remote', 'prune', 'origin'])
+
   // Get the working base.
   // When a ref, it may or may not be the actual base.
   // When a commit, we must rebase onto the actual base.