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auto-pr-to-release.yml
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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at https://mozilla.org/MPL/2.0/.
#
# OpenCRVS is also distributed under the terms of the Civil Registration
# & Healthcare Disclaimer located at http://opencrvs.org/license.
#
# Copyright (C) The OpenCRVS Authors located at https://github.com/opencrvs/opencrvs-core/blob/master/AUTHORS.
name: Auto PR to Release Branch
on:
pull_request:
types: [closed]
workflow_dispatch:
inputs:
pr_number:
description: 'PR number to process'
required: true
default: ''
jobs:
create-pr:
if: ${{ github.event_name == 'pull_request' && github.event.pull_request.merged == true || github.event_name == 'workflow_dispatch' }}
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Get PR details from workflow dispatch
if: ${{ github.event_name == 'workflow_dispatch' }}
id: get_pr_details_dispatch
run: |
PR_NUMBER=${{ github.event.inputs.pr_number }}
PR_DATA=$(curl -s -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/opencrvs/opencrvs-core/pulls/$PR_NUMBER)
# printf escapes the newlines in the JSON, so we can use jq to parse output such as:
# "body": "\r\n",
echo "PR_ID=$(printf '%s' $PR_DATA | jq -r '.number')" >> $GITHUB_ENV
echo "PR_AUTHOR=$(printf '%s' $PR_DATA | jq -r '.user.login')" >> $GITHUB_ENV
echo "PR_MERGER=$(printf '%s' $PR_DATA | jq -r '.merged_by.login')" >> $GITHUB_ENV
echo "MILESTONE=$(printf '%s' $PR_DATA | jq -r '.milestone.title')" >> $GITHUB_ENV
echo "BASE_BRANCH=$(printf '%s' $PR_DATA | jq -r '.base.ref')" >> $GITHUB_ENV
echo "HEAD_BRANCH=$(printf '%s' $PR_DATA | jq -r '.head.ref')" >> $GITHUB_ENV
echo "PR_TITLE=$(printf '%s' $PR_DATA | jq -r '.title')" >> $GITHUB_ENV
echo "BASE_SHA=$(printf '%s' $PR_DATA | jq -r '.base.sha')" >> $GITHUB_ENV
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
- name: Get PR details from event
if: ${{ github.event_name == 'pull_request' }}
id: get_pr_details_event
run: |
PR_NUMBER=${{ github.event.pull_request.number }}
echo "PR_ID=${{ github.event.pull_request.number }}" >> $GITHUB_ENV
echo "PR_AUTHOR=${{ github.event.pull_request.user.login }}" >> $GITHUB_ENV
echo "MILESTONE=${{ github.event.pull_request.milestone.title }}" >> $GITHUB_ENV
echo "BASE_BRANCH=${{ github.event.pull_request.base.ref }}" >> $GITHUB_ENV
echo "HEAD_BRANCH=${{ github.event.pull_request.head.ref }}" >> $GITHUB_ENV
echo "PR_TITLE=${{ github.event.pull_request.title }}" >> $GITHUB_ENV
echo "BASE_SHA=${{ github.event.pull_request.base.sha }}" >> $GITHUB_ENV
PR_DETAILS=$(gh pr view $PR_NUMBER --json mergedBy)
MERGED_BY_LOGIN=$(echo "$PR_DETAILS" | jq -r '.mergedBy.login')
echo "PR_MERGER=$MERGED_BY_LOGIN" >> $GITHUB_ENV
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
- name: Check for milestone and if release branch exists
continue-on-error: true
id: check_release_branch
run: |
if [ -z "${{ env.MILESTONE }}" ]; then
echo "No milestone set. Exiting."
exit 1
fi
RELEASE_BRANCH="release-${{ env.MILESTONE }}"
# Check if the release branch exists
if git ls-remote --heads origin $RELEASE_BRANCH | grep -q "refs/heads/$RELEASE_BRANCH"; then
echo "RELEASE_BRANCH=${RELEASE_BRANCH}" >> $GITHUB_ENV
else
echo "Release branch $RELEASE_BRANCH does not exist. Exiting."
exit 1
fi
- name: Create and push the new branch for the PR
if: ${{ steps.check_release_branch.outcome == 'success' }}
run: |
SEMANTIC_PR_TITLE="${{ env.PR_TITLE }}"
# Check for semantic prefix
if [[ $SEMANTIC_PR_TITLE =~ ^(feat|fix|docs|style|refactor|perf|test|chore|build|ci|revert|wip|merge)\: ]]; then
SEMANTIC_PR_TITLE="${BASH_REMATCH[1]}(${MILESTONE}): ${SEMANTIC_PR_TITLE#*: }"
else
SEMANTIC_PR_TITLE="🍒 Merge changes from PR #${{ env.PR_ID }} to ${{ env.RELEASE_BRANCH }}"
fi
PR_BODY="Automated PR to merge changes from develop to ${{ env.RELEASE_BRANCH }}"
# Configure git
git config user.name "github-actions"
git config user.email "[email protected]"
git config advice.mergeConflict false
# Fetch and checkout the release branch
git fetch --all --unshallow
git checkout ${{ env.RELEASE_BRANCH }}
# Create a new branch for the PR
NEW_BRANCH="auto-pr-${{ env.RELEASE_BRANCH }}-${{ env.PR_ID }}-$RANDOM"
git checkout -b $NEW_BRANCH
echo "HEAD_BRANCH: ${{ env.HEAD_BRANCH }}"
echo "BASE_SHA: ${{ env.BASE_SHA }}"
COMMIT_RANGE="${{ env.BASE_SHA }}..origin/${{ env.HEAD_BRANCH }}"
echo "Commit range: ${COMMIT_RANGE}"
NON_MERGE_COMMITS=$(git log ${COMMIT_RANGE} --reverse --no-merges --pretty=format:"%h" -- | xargs)
echo "Ordered non-merge commits: $NON_MERGE_COMMITS"
# Attempt to cherry-pick the commits from the original PR
CHERRY_PICK_OUTPUT=$(git cherry-pick ${NON_MERGE_COMMITS} 2>&1) || {
git cherry-pick --abort || true
# If cherry-pick fails, create a placeholder commit
echo "Cherry-pick failed. Creating placeholder commit."
git reset --hard
git commit --allow-empty -m "Placeholder commit for PR #${{ env.PR_ID }}"
# Add manual cherry-pick commands to the PR body
PR_BODY="${PR_BODY}
**I failed to cherry-pick the changes automatically because of the following:**
\`\`\`
$CHERRY_PICK_OUTPUT
\`\`\`
**To continue manually you can use these commands:**
\`\`\`
git fetch origin $NEW_BRANCH:$NEW_BRANCH
git fetch origin ${{ env.HEAD_BRANCH }}:${{ env.HEAD_BRANCH }}
git checkout $NEW_BRANCH
git reset --hard HEAD~1 # Remove placeholder commit
git cherry-pick $NON_MERGE_COMMITS
\`\`\`
"
}
# Push the new branch
git push origin $NEW_BRANCH
# Create a pull request and assign the original PR author as the reviewer
AUTHOR=${{ env.PR_AUTHOR }}
if [[ $AUTHOR == *renovate* ]]; then
if [ -z "${{ env.PR_MERGER }}" ]; then
AUTHOR=""
else
AUTHOR=${{ env.PR_MERGER }}
fi
fi
gh pr create --title "$SEMANTIC_PR_TITLE" --body "$PR_BODY" --head "$NEW_BRANCH" --base "${{ env.RELEASE_BRANCH }}" --reviewer "$AUTHOR"
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}