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approved-for-ci-run.yml
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name: Handle `approved-for-ci-run` label
# This workflow helps to run CI pipeline for PRs made by external contributors (from forks).
on:
pull_request_target:
branches:
- main
types:
# Default types that triggers a workflow ([1]):
# - [1] https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request
- opened
- synchronize
- reopened
# Types that we wand to handle in addition to keep labels tidy:
- closed
# Actual magic happens here:
- labeled
concurrency:
group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
cancel-in-progress: false
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
PR_NUMBER: ${{ github.event.pull_request.number }}
BRANCH: "ci-run/pr-${{ github.event.pull_request.number }}"
# No permission for GITHUB_TOKEN by default; the **minimal required** set of permissions should be granted in each job.
permissions: {}
defaults:
run:
shell: bash -euo pipefail {0}
jobs:
remove-label:
# Remove `approved-for-ci-run` label if the workflow is triggered by changes in a PR.
# The PR should be reviewed and labelled manually again.
permissions:
pull-requests: write # For `gh pr edit`
if: |
contains(fromJSON('["opened", "synchronize", "reopened", "closed"]'), github.event.action) &&
contains(github.event.pull_request.labels.*.name, 'approved-for-ci-run')
runs-on: ubuntu-22.04
steps:
- run: gh pr --repo "${GITHUB_REPOSITORY}" edit "${PR_NUMBER}" --remove-label "approved-for-ci-run"
create-or-update-pr-for-ci-run:
# Create local PR for an `approved-for-ci-run` labelled PR to run CI pipeline in it.
permissions:
pull-requests: write # for `gh pr edit`
# For `git push` and `gh pr create` we use CI_ACCESS_TOKEN
if: |
github.event.action == 'labeled' &&
contains(github.event.pull_request.labels.*.name, 'approved-for-ci-run')
runs-on: ubuntu-22.04
steps:
- run: gh pr --repo "${GITHUB_REPOSITORY}" edit "${PR_NUMBER}" --remove-label "approved-for-ci-run"
- uses: actions/checkout@v4
with:
ref: main
token: ${{ secrets.CI_ACCESS_TOKEN }}
- name: Look for existing PR
id: get-pr
env:
GH_TOKEN: ${{ secrets.CI_ACCESS_TOKEN }}
run: |
ALREADY_CREATED="$(gh pr --repo ${GITHUB_REPOSITORY} list --head ${BRANCH} --base main --json number --jq '.[].number')"
echo "ALREADY_CREATED=${ALREADY_CREATED}" >> ${GITHUB_OUTPUT}
- name: Get changed labels
id: get-labels
if: steps.get-pr.outputs.ALREADY_CREATED != ''
env:
ALREADY_CREATED: ${{ steps.get-pr.outputs.ALREADY_CREATED }}
GH_TOKEN: ${{ secrets.CI_ACCESS_TOKEN }}
run: |
LABELS_TO_REMOVE=$(comm -23 <(gh pr --repo ${GITHUB_REPOSITORY} view ${ALREADY_CREATED} --json labels --jq '.labels.[].name'| ( grep -E '^run' || true ) | sort) \
<(gh pr --repo ${GITHUB_REPOSITORY} view ${PR_NUMBER} --json labels --jq '.labels.[].name' | ( grep -E '^run' || true ) | sort ) |\
( grep -v run-e2e-tests-in-draft || true ) | paste -sd , -)
LABELS_TO_ADD=$(comm -13 <(gh pr --repo ${GITHUB_REPOSITORY} view ${ALREADY_CREATED} --json labels --jq '.labels.[].name'| ( grep -E '^run' || true ) |sort) \
<(gh pr --repo ${GITHUB_REPOSITORY} view ${PR_NUMBER} --json labels --jq '.labels.[].name' | ( grep -E '^run' || true ) | sort ) |\
paste -sd , -)
echo "LABELS_TO_ADD=${LABELS_TO_ADD}" >> ${GITHUB_OUTPUT}
echo "LABELS_TO_REMOVE=${LABELS_TO_REMOVE}" >> ${GITHUB_OUTPUT}
- run: gh pr checkout "${PR_NUMBER}"
- run: git checkout -b "${BRANCH}"
- run: git push --force origin "${BRANCH}"
if: steps.get-pr.outputs.ALREADY_CREATED == ''
- name: Create a Pull Request for CI run (if required)
if: steps.get-pr.outputs.ALREADY_CREATED == ''
env:
GH_TOKEN: ${{ secrets.CI_ACCESS_TOKEN }}
run: |
cat << EOF > body.md
This Pull Request is created automatically to run the CI pipeline for #${PR_NUMBER}
Please do not alter or merge/close it.
Feel free to review/comment/discuss the original PR #${PR_NUMBER}.
EOF
LABELS=$( (gh pr --repo "${GITHUB_REPOSITORY}" view ${PR_NUMBER} --json labels --jq '.labels.[].name'; echo run-e2e-tests-in-draft )| \
grep -E '^run' | paste -sd , -)
gh pr --repo "${GITHUB_REPOSITORY}" create --title "CI run for PR #${PR_NUMBER}" \
--body-file "body.md" \
--head "${BRANCH}" \
--base "main" \
--label ${LABELS} \
--draft
- name: Modify the existing pull request (if required)
if: steps.get-pr.outputs.ALREADY_CREATED != ''
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
LABELS_TO_ADD: ${{ steps.get-labels.outputs.LABELS_TO_ADD }}
LABELS_TO_REMOVE: ${{ steps.get-labels.outputs.LABELS_TO_REMOVE }}
ALREADY_CREATED: ${{ steps.get-pr.outputs.ALREADY_CREATED }}
run: |
ADD_CMD=
REMOVE_CMD=
[ -z "${LABELS_TO_ADD}" ] || ADD_CMD="--add-label ${LABELS_TO_ADD}"
[ -z "${LABELS_TO_REMOVE}" ] || REMOVE_CMD="--remove-label ${LABELS_TO_REMOVE}"
if [ -n "${ADD_CMD}" ] || [ -n "${REMOVE_CMD}" ]; then
gh pr --repo "${GITHUB_REPOSITORY}" edit ${ALREADY_CREATED} ${ADD_CMD} ${REMOVE_CMD}
fi
- run: git push --force origin "${BRANCH}"
if: steps.get-pr.outputs.ALREADY_CREATED != ''
cleanup:
# Close PRs and delete branchs if the original PR is closed.
permissions:
contents: write # for `--delete-branch` flag in `gh pr close`
pull-requests: write # for `gh pr close`
if: |
github.event.action == 'closed' &&
github.event.pull_request.head.repo.full_name != github.repository
runs-on: ubuntu-22.04
steps:
- name: Close PR and delete `ci-run/pr-${{ env.PR_NUMBER }}` branch
run: |
CLOSED="$(gh pr --repo ${GITHUB_REPOSITORY} list --head ${BRANCH} --json 'closed' --jq '.[].closed')"
if [ "${CLOSED}" == "false" ]; then
gh pr --repo "${GITHUB_REPOSITORY}" close "${BRANCH}" --delete-branch
fi