PR release #251
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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). | |
| # The main specification/documentation for this workflow is at | |
| # https://leanprover-community.github.io/contribute/tags_and_branches.html | |
| # Keep that in sync! | |
| 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.event.workflow_run.event == 'pull_request' && 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 | |
| # This action is deprecated and archived, but it seems hard to find a better solution for getting the PR number | |
| # see https://github.com/orgs/community/discussions/25220 for some discussion | |
| id: workflow-info | |
| with: | |
| token: ${{ secrets.GITHUB_TOKEN }} | |
| sourceRunId: ${{ github.event.workflow_run.id }} | |
| - 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: Push tag | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
| run: | | |
| git init --bare lean4.git | |
| git -C lean4.git remote add origin https://github.com/${{ github.repository_owner }}/lean4.git | |
| git -C lean4.git fetch -n origin master | |
| git -C lean4.git fetch -n origin "${{ steps.workflow-info.outputs.sourceHeadSha }}" | |
| git -C lean4.git tag -f pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }} "${{ steps.workflow-info.outputs.sourceHeadSha }}" | |
| git -C lean4.git remote add pr-releases https://foo:'${{ secrets.PR_RELEASES_TOKEN }}'@github.com/${{ github.repository_owner }}/lean4-pr-releases.git | |
| git -C lean4.git push -f pr-releases pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
| - name: Delete existing release if present | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
| run: | | |
| # 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 | |
| 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: Report release status | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
| uses: actions/github-script@v6 | |
| with: | |
| script: | | |
| await github.rest.repos.createCommitStatus({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| sha: "${{ steps.workflow-info.outputs.sourceHeadSha }}", | |
| state: "success", | |
| context: "PR toolchain", | |
| description: "${{ github.repository_owner }}/lean4-pr-releases:pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }}", | |
| }); | |
| - name: Add label | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| await github.rest.issues.addLabels({ | |
| issue_number: ${{ steps.workflow-info.outputs.pullRequestNumber }}, | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| labels: ['toolchain-available'] | |
| }) | |
| # Next, determine the most recent nightly release in this PR's history. | |
| - name: Find most recent nightly in feature branch | |
| id: most-recent-nightly-tag | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
| run: | | |
| git -C lean4.git remote add nightly https://github.com/leanprover/lean4-nightly.git | |
| git -C lean4.git fetch nightly '+refs/tags/nightly-*:refs/tags/nightly-*' | |
| git -C lean4.git tag --merged "${{ steps.workflow-info.outputs.sourceHeadSha }}" --list "nightly-*" \ | |
| | sort -rV | head -n 1 | sed "s/^nightly-*/MOST_RECENT_NIGHTLY=/" | tee -a "$GITHUB_ENV" | |
| - name: 'Setup jq' | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
| uses: dcarbone/[email protected] | |
| # Check that the most recently nightly coincides with 'git merge-base HEAD master' | |
| - name: Check merge-base and nightly-testing-YYYY-MM-DD | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' }} | |
| id: ready | |
| run: | | |
| echo "Most recent nightly release in your branch: $MOST_RECENT_NIGHTLY" | |
| NIGHTLY_SHA=$(git -C lean4.git rev-parse "nightly-$MOST_RECENT_NIGHTLY^{commit}") | |
| echo "SHA of most recent nightly release: $NIGHTLY_SHA" | |
| MERGE_BASE_SHA=$(git -C lean4.git merge-base origin/master "${{ steps.workflow-info.outputs.sourceHeadSha }}") | |
| echo "SHA of merge-base: $MERGE_BASE_SHA" | |
| if [ "$NIGHTLY_SHA" = "$MERGE_BASE_SHA" ]; then | |
| echo "The merge base of this PR coincides with the nightly release" | |
| BATTERIES_REMOTE_TAGS="$(git ls-remote https://github.com/leanprover-community/batteries.git nightly-testing-"$MOST_RECENT_NIGHTLY")" | |
| MATHLIB_REMOTE_TAGS="$(git ls-remote https://github.com/leanprover-community/mathlib4.git nightly-testing-"$MOST_RECENT_NIGHTLY")" | |
| if [[ -n "$BATTERIES_REMOTE_TAGS" ]]; then | |
| echo "... and Batteries has a 'nightly-testing-$MOST_RECENT_NIGHTLY' tag." | |
| MESSAGE="" | |
| if [[ -n "$MATHLIB_REMOTE_TAGS" ]]; then | |
| echo "... and Mathlib has a 'nightly-testing-$MOST_RECENT_NIGHTLY' tag." | |
| else | |
| echo "... but Mathlib does not yet have a 'nightly-testing-$MOST_RECENT_NIGHTLY' tag." | |
| MESSAGE="- ❗ Mathlib CI can not be attempted yet, as the \`nightly-testing-$MOST_RECENT_NIGHTLY\` tag does not exist there yet. We will retry when you push more commits. If you rebase your branch onto \`nightly-with-mathlib\`, Mathlib CI should run now." | |
| fi | |
| else | |
| echo "... but Batteries does not yet have a 'nightly-testing-$MOST_RECENT_NIGHTLY' tag." | |
| MESSAGE="- ❗ Batteries CI can not be attempted yet, as the \`nightly-testing-$MOST_RECENT_NIGHTLY\` tag does not exist there yet. We will retry when you push more commits. If you rebase your branch onto \`nightly-with-mathlib\`, Batteries CI should run now." | |
| fi | |
| else | |
| echo "The most recently nightly tag on this branch has SHA: $NIGHTLY_SHA" | |
| echo "but 'git merge-base origin/master HEAD' reported: $MERGE_BASE_SHA" | |
| git -C lean4.git log -10 origin/master | |
| git -C lean4.git fetch origin nightly-with-mathlib | |
| NIGHTLY_WITH_MATHLIB_SHA="$(git -C lean4.git rev-parse "origin/nightly-with-mathlib")" | |
| MESSAGE="- ❗ Batteries/Mathlib CI will not be attempted unless your PR branches off the \`nightly-with-mathlib\` branch. Try \`git rebase $MERGE_BASE_SHA --onto $NIGHTLY_WITH_MATHLIB_SHA\`." | |
| fi | |
| if [[ -n "$MESSAGE" ]]; then | |
| echo "Checking existing messages" | |
| # The code for updating comments is duplicated in mathlib's | |
| # scripts/lean-pr-testing-comments.sh | |
| # so keep in sync | |
| # Use GitHub API to check if a comment already exists | |
| existing_comment="$(curl --retry 3 --location --silent \ | |
| -H "Authorization: token ${{ secrets.MATHLIB4_BOT }}" \ | |
| -H "Accept: application/vnd.github.v3+json" \ | |
| "https://api.github.com/repos/leanprover/lean4/issues/${{ steps.workflow-info.outputs.pullRequestNumber }}/comments" \ | |
| | jq 'first(.[] | select(.body | test("^- . Mathlib") or startswith("Mathlib CI status")) | select(.user.login == "leanprover-community-mathlib4-bot"))')" | |
| existing_comment_id="$(echo "$existing_comment" | jq -r .id)" | |
| existing_comment_body="$(echo "$existing_comment" | jq -r .body)" | |
| if [[ "$existing_comment_body" != *"$MESSAGE"* ]]; then | |
| MESSAGE="$MESSAGE ($(date "+%Y-%m-%d %H:%M:%S"))" | |
| echo "Posting message to the comments: $MESSAGE" | |
| # Append new result to the existing comment or post a new comment | |
| # It's essential we use the MATHLIB4_BOT token here, so that Mathlib CI can subsequently edit the comment. | |
| if [ -z "$existing_comment_id" ]; then | |
| INTRO="Mathlib CI status ([docs](https://leanprover-community.github.io/contribute/tags_and_branches.html)):" | |
| # Post new comment with a bullet point | |
| echo "Posting as new comment at leanprover/lean4/issues/${{ steps.workflow-info.outputs.pullRequestNumber }}/comments" | |
| curl -L -s \ | |
| -X POST \ | |
| -H "Authorization: token ${{ secrets.MATHLIB4_BOT }}" \ | |
| -H "Accept: application/vnd.github.v3+json" \ | |
| -d "$(jq --null-input --arg intro "$INTRO" --arg val "$MESSAGE" '{"body":($intro + "\n" + $val)}')" \ | |
| "https://api.github.com/repos/leanprover/lean4/issues/${{ steps.workflow-info.outputs.pullRequestNumber }}/comments" | |
| else | |
| # Append new result to the existing comment | |
| echo "Appending to existing comment at leanprover/lean4/issues/${{ steps.workflow-info.outputs.pullRequestNumber }}/comments" | |
| curl -L -s \ | |
| -X PATCH \ | |
| -H "Authorization: token ${{ secrets.MATHLIB4_BOT }}" \ | |
| -H "Accept: application/vnd.github.v3+json" \ | |
| -d "$(jq --null-input --arg existing "$existing_comment_body" --arg message "$MESSAGE" '{"body":($existing + "\n" + $message)}')" \ | |
| "https://api.github.com/repos/leanprover/lean4/issues/comments/$existing_comment_id" | |
| fi | |
| else | |
| echo "The message already exists in the comment body." | |
| fi | |
| echo "mathlib_ready=false" >> "$GITHUB_OUTPUT" | |
| else | |
| echo "mathlib_ready=true" >> "$GITHUB_OUTPUT" | |
| fi | |
| - name: Report mathlib base | |
| if: ${{ steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' }} | |
| uses: actions/github-script@v6 | |
| with: | |
| script: | | |
| const description = | |
| process.env.MOST_RECENT_NIGHTLY ? | |
| "nightly-" + process.env.MOST_RECENT_NIGHTLY : | |
| "not branched off nightly"; | |
| await github.rest.repos.createCommitStatus({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| sha: "${{ steps.workflow-info.outputs.sourceHeadSha }}", | |
| state: "success", | |
| context: "PR branched off:", | |
| description: description, | |
| }); | |
| # We next automatically create a Batteries branch using this toolchain. | |
| # Batteries doesn't itself have a mechanism to report results of CI from this branch back to Lean | |
| # Instead this is taken care of by Mathlib CI, which will fail if Batteries fails. | |
| - name: Cleanup workspace | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| run: | | |
| sudo rm -rf ./* | |
| # Checkout the Batteries repository with all branches | |
| - name: Checkout Batteries repository | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| uses: actions/checkout@v4 | |
| with: | |
| repository: leanprover-community/batteries | |
| token: ${{ secrets.MATHLIB4_BOT }} | |
| ref: nightly-testing | |
| fetch-depth: 0 # This ensures we check out all tags and branches. | |
| - name: Check if tag exists | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| id: check_batteries_tag | |
| run: | | |
| git config user.name "leanprover-community-mathlib4-bot" | |
| git config user.email "[email protected]" | |
| if git ls-remote --heads --tags --exit-code origin "nightly-testing-${MOST_RECENT_NIGHTLY}" >/dev/null; then | |
| BASE="nightly-testing-${MOST_RECENT_NIGHTLY}" | |
| else | |
| echo "This shouldn't be possible: couldn't find a 'nightly-testing-${MOST_RECENT_NIGHTLY}' tag at Batteries. Falling back to 'nightly-testing'." | |
| BASE=nightly-testing | |
| fi | |
| echo "Using base branch: $BASE" | |
| EXISTS="$(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 switch -c lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} "$BASE" | |
| 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 switch lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
| # The Batteries `nightly-testing` or `nightly-testing-YYYY-MM-DD` branch may have moved since this branch was created, so merge their changes. | |
| # (This should no longer be possible once `nightly-testing-YYYY-MM-DD` is a tag, but it is still safe to merge.) | |
| git merge "$BASE" --strategy-option ours --no-commit --allow-unrelated-histories | |
| git commit --allow-empty -m "Trigger CI for https://github.com/leanprover/lean4/pull/${{ steps.workflow-info.outputs.pullRequestNumber }}" | |
| fi | |
| - name: Push changes | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| run: | | |
| git push origin lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
| # 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 | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| run: | | |
| sudo rm -rf ./* | |
| # Checkout the mathlib4 repository with all branches | |
| - name: Checkout mathlib4 repository | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| uses: actions/checkout@v4 | |
| with: | |
| repository: leanprover-community/mathlib4 | |
| token: ${{ secrets.MATHLIB4_BOT }} | |
| ref: nightly-testing | |
| fetch-depth: 0 # This ensures we check out all tags and branches. | |
| - name: install elan | |
| run: | | |
| set -o pipefail | |
| curl -sSfL https://github.com/leanprover/elan/releases/download/v3.0.0/elan-x86_64-unknown-linux-gnu.tar.gz | tar xz | |
| ./elan-init -y --default-toolchain none | |
| echo "$HOME/.elan/bin" >> "${GITHUB_PATH}" | |
| - name: Check if tag exists | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| id: check_mathlib_tag | |
| run: | | |
| git config user.name "leanprover-community-mathlib4-bot" | |
| git config user.email "[email protected]" | |
| if git ls-remote --heads --tags --exit-code origin "nightly-testing-${MOST_RECENT_NIGHTLY}" >/dev/null; then | |
| BASE="nightly-testing-${MOST_RECENT_NIGHTLY}" | |
| else | |
| echo "This shouldn't be possible: couldn't find a 'nightly-testing-${MOST_RECENT_NIGHTLY}' branch at Mathlib. Falling back to 'nightly-testing'." | |
| BASE=nightly-testing | |
| fi | |
| echo "Using base tag: $BASE" | |
| EXISTS="$(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 switch -c lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} "$BASE" | |
| echo "leanprover/lean4-pr-releases:pr-release-${{ steps.workflow-info.outputs.pullRequestNumber }}" > lean-toolchain | |
| git add lean-toolchain | |
| sed -i 's,require "leanprover-community" / "batteries" @ git ".\+",require "leanprover-community" / "batteries" @ git "nightly-testing-'"${MOST_RECENT_NIGHTLY}"'",' lakefile.lean | |
| lake update batteries | |
| git add lakefile.lean lake-manifest.json | |
| git commit -m "Update lean-toolchain for testing https://github.com/leanprover/lean4/pull/${{ steps.workflow-info.outputs.pullRequestNumber }}" | |
| else | |
| echo "Branch already exists, pushing an empty commit." | |
| git switch lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} | |
| # The Mathlib `nightly-testing` branch or `nightly-testing-YYYY-MM-DD` tag may have moved since this branch was created, so merge their changes. | |
| # (This should no longer be possible once `nightly-testing-YYYY-MM-DD` is a tag, but it is still safe to merge.) | |
| git merge "$BASE" --strategy-option ours --no-commit --allow-unrelated-histories | |
| git commit --allow-empty -m "Trigger CI for https://github.com/leanprover/lean4/pull/${{ steps.workflow-info.outputs.pullRequestNumber }}" | |
| fi | |
| - name: Push changes | |
| if: steps.workflow-info.outputs.pullRequestNumber != '' && steps.ready.outputs.mathlib_ready == 'true' | |
| run: | | |
| git push origin lean-pr-testing-${{ steps.workflow-info.outputs.pullRequestNumber }} |