PR release #289
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# Push a release to the lean4-pr-releases repository, whenever someone pushes to a PR branch. | |
# This needs to run with the `secrets.PR_RELEASES_TOKEN` token available, | |
# but PR branches will generally come from forks, | |
# so it is not possible to run this using the `pull_request` or `pull_request_target` workflows. | |
# Instead we use `workflow_run`, which essentially allows us to escalate privileges | |
# (but only runs the CI as described in the `master` branch, not in the PR branch). | |
name: PR release | |
on: | |
workflow_run: # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#workflow_run | |
workflows: [CI] | |
types: [completed] | |
jobs: | |
on-success: | |
runs-on: ubuntu-latest | |
if: github.event.workflow_run.conclusion == 'success' && github.repository == 'leanprover/lean4' | |
steps: | |
- name: Retrieve information about the original workflow | |
uses: potiuk/get-workflow-origin@v1_1 # https://github.com/marketplace/actions/get-workflow-origin | |
id: workflow-info | |
with: | |
token: ${{ secrets.GITHUB_TOKEN }} | |
sourceRunId: ${{ github.event.workflow_run.id }} | |
- name: Checkout | |
# Only proceed if the previous workflow had a pull request number. | |
if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
uses: actions/checkout@v3 | |
with: | |
token: ${{ secrets.PR_RELEASES_TOKEN }} | |
# Since `workflow_run` runs on master, we need to specify which commit to check out, | |
# so that we tag the PR. | |
ref: ${{ steps.workflow-info.outputs.targetCommitSha }} | |
# We need a full checkout, so that we can push the PR commits to the `lean4-pr-releases` repo. | |
fetch-depth: 0 | |
- name: Download artifact from the previous workflow. | |
if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
id: download-artifact | |
uses: dawidd6/action-download-artifact@v2 # https://github.com/marketplace/actions/download-workflow-artifact | |
with: | |
run_id: ${{ github.event.workflow_run.id }} | |
path: artifacts | |
name: build-.* | |
name_is_regexp: true | |
- name: Prepare release | |
if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
run: | | |
git remote add pr-releases https://foo:'${{ secrets.PR_RELEASES_TOKEN }}'@github.com/${{ github.repository_owner }}/lean4-pr-releases.git | |
# Try to delete any existing release for the current PR. | |
gh release delete --repo ${{ github.repository_owner }}/lean4-pr-releases pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }} -y || true | |
git tag -f pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
git push -f pr-releases pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
env: | |
GH_TOKEN: ${{ secrets.PR_RELEASES_TOKEN }} | |
- name: Release | |
if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
uses: softprops/action-gh-release@v1 | |
with: | |
name: Release for PR ${{ steps.workflow-info.outputs.pullRequestNumber }} | |
# There are coredumps files here as well, but all in deeper subdirectories. | |
files: artifacts/*/* | |
fail_on_unmatched_files: true | |
draft: false | |
tag_name: pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
repository: ${{ github.repository_owner }}/lean4-pr-releases | |
env: | |
# The token used here must have `workflow` privileges. | |
GITHUB_TOKEN: ${{ secrets.PR_RELEASES_TOKEN }} | |
- name: Add label | |
if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
uses: actions-ecosystem/action-add-labels@v1 | |
with: | |
number: ${{ steps.workflow-info.outputs.pullRequestNumber }} | |
labels: toolchain-available | |
# We next automatically create a Mathlib branch using this toolchain. | |
# Mathlib CI will be responsible for reporting back success or failure | |
# to the PR comments asynchronously. | |
- name: Cleanup workspace | |
run: | | |
sudo rm -rf * | |
# Checkout the mathlib4 repository with all branches | |
- name: Checkout mathlib4 repository | |
uses: actions/checkout@v2 | |
with: | |
repository: leanprover-community/mathlib4 | |
token: ${{ secrets.MATHLIB4_BOT }} | |
ref: nightly-testing # This is more likely than `master` to work with the base of this PR. | |
fetch-depth: 0 | |
- name: Check if branch exists | |
id: check_branch | |
run: | | |
git config user.name "leanprover-community-mathlib4-bot" | |
git config user.email "leanprover-community-mathlib4-bot@users.noreply.github.com" | |
EXISTS=$(git ls-remote --heads origin lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} | wc -l) | |
echo "Branch exists: $EXISTS" | |
if [ "$EXISTS" = "0" ]; then | |
echo "Branch does not exist, creating it." | |
git checkout -b lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
echo "leanprover/lean4-pr-releases:pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }}" > lean-toolchain | |
git add lean-toolchain | |
git commit -m "Update lean-toolchain for testing https://github.com/leanprover/lean4/pull/${{ steps.workflow-info.outputs.pullRequestNumber }}" | |
else | |
echo "Branch already exists, pushing an empty commit." | |
git checkout lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
# The Mathlib `nightly-testing` branch may have moved since this branch was created, so merge their changes. | |
# If the base of this Lean4 PR becomes significantly older than the nightly being used by `nightly-testing` | |
# this will cause breakages rather than fixing them! | |
# Without cumbersome requirements that Lean4 PRs are based off nightlies, I'm not sure there is a perfect solution here. | |
git merge nightly-testing --strategy-option ours --no-commit --allow-unrelated-histories | |
git commit --allow-empty -m "Trigger CI for https://github.com/leanprover/lean4/pull/${{ steps.workflow-info.outputs.pullRequestNumber }}" | |
fi | |
- name: Push changes | |
run: | | |
git push origin lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} |