Add a github actions workflow to create a release PR (#1437)

The action runs the existing create_release.py script in a new mode
created for github actions. Rather than using local git commands, it
uses a public action for creating a PR in the repository. The action can
be triggered from the website or via the CLI tool, for example

gh workflow run create-release.yml -R emscripten-core/emsdk -F
lto-sha=abc123 -F nonlto-sha=234567

.github/workflows/create-release.yml

@@ -0,0 +1,27 @@
+name: Create Release PR
+
+on:
+ workflow_dispatch:
+ inputs:
+ lto-sha:
+ required: true
+ type: string
+ nonlto-sha:
+ required: true
+ type: string
+
+jobs:
+ create-release-pr:
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout repo
+ uses: actions/checkout@v4
+ - name: Run create_release.py
+ run: python3 scripts/create_release.py ${{ inputs.lto-sha }} ${{ inputs.nonlto-sha }} --action
+ - name: Create PR
+ id: cpr
+ uses: peter-evans/create-pull-request@v6
+ with:
+ title: Release ${{ env.RELEASE_VERSION }}
+ commit-message: Release ${{ env.RELEASE_VERSION }}
+ delete-branch: true

scripts/create_release.py

@@ -31,10 +31,13 @@ def main(args):
 
  new_version = '.'.join(str(part) for part in new_version)
  asserts_hash = None
+ is_github_runner = False
  if args:
  new_hash = args[0]
  if len(args) > 1:
  asserts_hash = args[1]
+ if len(args) > 2 and args[2] == '--action':
+ is_github_runner = True
  else:
  new_hash = emsdk.get_emscripten_releases_tot()
  print('Creating new release: %s -> %s' % (new_version, new_hash))
@@ -59,16 +62,21 @@ def main(args):
 
  branch_name = 'version_' + new_version
 
- # Create a new git branch
- subprocess.check_call(['git', 'checkout', '-b', branch_name, 'origin/main'], cwd=root_dir)
+ if is_github_runner: # For GitHub Actions workflows
+ with open(os.environ['GITHUB_ENV'], 'a') as f:
+ f.write(f'RELEASE_VERSION={new_version}')
+ else: # Local use
+ # Create a new git branch
+ subprocess.check_call(['git', 'checkout', '-b', branch_name, 'origin/main'], cwd=root_dir)
 
- # Create auto-generated changes to the new git branch
- subprocess.check_call(['git', 'add', '-u', '.'], cwd=root_dir)
- subprocess.check_call(['git', 'commit', '-m', new_version], cwd=root_dir)
- print('New release created in branch: `%s`' % branch_name)
+ # Create auto-generated changes to the new git branch
+ subprocess.check_call(['git', 'add', '-u', '.'], cwd=root_dir)
+ subprocess.check_call(['git', 'commit', '-m', new_version], cwd=root_dir)
+ print('New release created in branch: `%s`' % branch_name)
+
+ # Push new branch to origin
+ subprocess.check_call(['git', 'push', 'origin', branch_name], cwd=root_dir)
 
- # Push new branch to origin
- subprocess.check_call(['git', 'push', 'origin', branch_name], cwd=root_dir)
  return 0