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Add script to merge main into all active feature branches on a regular schedule. (#1394)
* Add workflow for automatically updating feature branches weekly. * Corrected filename, and added inputs. * Remove trailing spaces. * Fix workflow. * Fix workflow name. * Fix syntax. * Fix syntax. * List remote branches instead. * Clean up script. * Untab. * Add branch list for debugging. * Untab. * Specify remote branches. * Skip second stage if no first. * Typo * Error. * List all branches. * Fix logic. * Fix spacing. * Fix output * Fix parameters. * Fix merge to use origin. * Remove debug echos. * Add git config. * Fix PR creation. * Fix PR creation. * Fix automatic push.
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‎.github/workflows/update-feature-branches.yml‎

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@@ -2,11 +2,126 @@ name: Update Feature Branches
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on:
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workflow_dispatch:
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inputs:
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branch_patterns:
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description: 'Space-separated list of feature branch patterns'
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default: 'feature_branch/*'
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required: true
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main_branch:
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description: 'Main branch to merge'
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default: 'main'
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required: true
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schedule:
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- cron: "0 16 * * 1" # Mondays, 4pm UTC = 9am PST / 10am PDT
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env:
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defaultBranchPattern: "feature_branch/*"
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defaultMainBranch: "main"
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triggerTestsLabel: "tests-requested: quick"
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jobs:
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no_op:
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name: no-op
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list_feature_branches:
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name: list-feature-branches
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runs-on: ubuntu-20.04
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outputs:
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branch_list: ${{ steps.get-branches.outputs.branch_list }}
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steps:
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- name: Check out repo (if needed)
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if: ${{ github.event.inputs.branch_list == '' }}
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uses: actions/checkout@v3
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- name: Get list of feature branches
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id: get-branches
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run: |
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branch_pattern='origin/${{ env.defaultBranchPattern }}'
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if [[ -n '${{ github.event.inputs.branch_patterns }}' ]]; then
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branch_pattern=origin/$(echo '${{ github.event.inputs.branch_patterns }}' | sed 's| | origin/|g')
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fi
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git remote update
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echo "Branch pattern: ${branch_pattern}"
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branch_list=$(git branch --list --all "${branch_pattern}")
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if [[ -n ${branch_list} ]]; then
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# If there's at least one entry, process the list.
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echo "Remote branch list: ${branch_list}"
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# Remove remotes/origin/ from each branch.
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branch_list=$(echo ${branch_list} | sed 's| remotes/origin/| |g' | sed 's|^remotes/origin/||')
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# Change spaces to commas.
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branch_list=$(echo ${branch_list} | sed 's/ /,/g')
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# Add quotes around each branch name.
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branch_list='"'$(echo ${branch_list} | sed 's/,/","/g')'"'
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fi
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echo "::warning ::Branch list: [${branch_list}]"
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echo "branch_list=[${branch_list}]" >> $GITHUB_OUTPUT
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create_merge_prs:
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name: create-merge-pr-${{ matrix.branch_name }}
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needs: [ list_feature_branches ]
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runs-on: ubuntu-20.04
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if: ${{ needs.list_feature_branches.outputs.branch_list != '[]' }}
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strategy:
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fail-fast: false
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matrix:
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branch_name: ${{ fromJson(needs.list_feature_branches.outputs.branch_list) }}
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steps:
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- name: noop
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run: true
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- name: Get token for firebase-workflow-trigger
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uses: tibdex/github-app-token@v1
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id: generate-token
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with:
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app_id: ${{ secrets.WORKFLOW_TRIGGER_APP_ID }}
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private_key: ${{ secrets.WORKFLOW_TRIGGER_APP_PRIVATE_KEY }}
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- name: Setup python
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uses: actions/setup-python@v4
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with:
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python-version: 3.7
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- uses: actions/checkout@v3
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with:
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ref: ${{ matrix.branch_name }}
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fetch-depth: 0
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submodules: false
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- name: Install prerequisites
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run: |
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python scripts/gha/install_prereqs_desktop.py
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python -m pip install requests
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- name: Create merge PR
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id: create-pr
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run: |
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git config user.email "firebase-workflow-trigger-bot@google.com"
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git config user.name "firebase-workflow-trigger-bot"
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git config core.commentChar "%" # so we can use # in git commit messages
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main_branch='${{ env.defaultMainBranch }}'
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if [[ -n '${{ github.event.inputs.main_branch }}' ]]; then
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main_branch='${{ github.event.inputs.main_branch }}'
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fi
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# Attempt a merge, then check if any files changed.
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git merge --no-commit --no-ff "origin/${main_branch}" || true
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if git diff --quiet ${{ matrix.branch_name }}; then
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# No merge necessary.
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echo "::warning ::No merge needed for ${{ matrix.branch_name }}, won't create pull request."
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echo "created_pr_number=0" >> $GITHUB_OUTPUT
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exit 0
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fi
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# Undo the actual merge. Let the PR creation handle it.
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git merge --abort
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date_str=$(date "+%b %d, %Y")
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pr_title="Automatic merge of ${main_branch} into ${{ matrix.branch_name }} - ${date_str}"
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pr_body="Automatic merge of ${main_branch} into ${{ matrix.branch_name }}.
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> Created on ${date_str} by [${{github.workflow}} workflow]($GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID).
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"
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pr_number=$(python scripts/gha/create_pull_request.py --token ${{ steps.generate-token.outputs.token }} --base "${{ matrix.branch_name }}" --head "${main_branch}" --title "${pr_title}" --body "${pr_body}")
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echo "created_pr_number=${pr_number}" >> $GITHUB_OUTPUT
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- name: Set test trigger label.
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uses: actions-ecosystem/action-add-labels@v1
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if: ${{ steps.create-pr.outputs.created_pr_number }}
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with:
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github_token: ${{ steps.generate-token.outputs.token }}
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number: ${{ steps.create-pr.outputs.created_pr_number }}
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labels: "${{ env.triggerTestsLabel }}"

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