GitHub Bot Proxy #1725
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# This workflow must be kept in sync to some extent with bot.yml | |
name: GitHub Bot Proxy | |
on: | |
# Watch for any completed run on bot.yml workflow | |
workflow_run: | |
workflows: [GitHub Bot] | |
types: [completed] | |
jobs: | |
# This workflow monitors any run completed on the GitHub Bot workflow and | |
# checks if the event that triggered it is limited to read-only permissions | |
# (e.g 'pull_request_review' on a pull request opened from a fork). | |
# In this case, it reruns the GitHub Bot workflow using a 'workflow_dispatch' | |
# event, thereby allowing it to run with write permissions. | |
# | |
# Complete flow: | |
# 'pull_request_review' from fork on bot.yml (read-only) -> 'workflow_run' on bot-proxy.yml (write) -> 'workflow_dispatch' on bot.yml (write) | |
rerun-with-write-perm: | |
name: Rerun Bot with write permission | |
# Skip this workflow if the original event is not 'pull_request_review' | |
if: github.event.workflow_run.event == 'pull_request_review' | |
runs-on: ubuntu-latest | |
permissions: | |
actions: write | |
steps: | |
- name: Download artifact from previous run | |
uses: actions/download-artifact@v4 | |
with: | |
name: pr-number | |
run-id: ${{ github.event.workflow_run.id }} | |
github-token: ${{ secrets.GITHUB_TOKEN }} | |
# Even if the artifact doesn't exist, do not mark the workflow as failed | |
# Useful if the 'pull_request_review' event was emitted by a PR opened | |
# from a branch on the main repo, so it has already been processed by | |
# the bot workflow, and no artifact has been uploaded. | |
continue-on-error: true | |
id: download | |
- name: Send workflow_dispatch event to Github Bot | |
# Run only if an artifact was downloaded | |
if: steps.download.outcome == 'success' | |
env: | |
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
REPO: ${{ github.event.workflow_run.repository.full_name }} | |
run: | | |
gh workflow run bot.yml -R "$REPO" -f "pull-request-list=$(cat pr-number)" |