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create-prs-for-stale-branches.yml
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name: "PR: Find branches without PR's"
on:
push:
branches:
- "main"
paths:
- ".github/workflows/create-prs-for-stale-branches.yml"
schedule:
- cron: "0 1 * * *"
concurrency:
group: ${{github.workflow}}-${{github.ref}}
cancel-in-progress: false
jobs:
build-matrix:
runs-on: [self-hosted, linux]
permissions:
contents: read
steps:
- name: "Initialise Workspace"
if: startsWith(runner.name, 'buildagent-')
shell: bash
run: sudo chown -R "$USER:$USER" "$GITHUB_WORKSPACE"
- name: "Info"
shell: bash
run: |
echo "Repo: ${{github.repository}}"
echo "Owner: ${{github.repository_owner}}"
- name: "Ensure JQ is installed"
shell: bash
run: sudo apt install -y jq
- name: "Checkout Source"
uses: actions/checkout@v4.1.1
with:
fetch-depth: 0
fetch-tags: true
ref: main
repository: ${{github.repository}}
- name: "Create matrix of branches"
id: set-matrix
shell: bash
run: |
echo "branches=$(git branch --remote --format='%(refname:short)' | grep -Po 'origin/\K[^*]*' | grep -vE 'HEAD|release/|hotfix/' | jq -R -s -c 'split("\n")[:-1]')" >> "$GITHUB_OUTPUT"
outputs:
branches: ${{steps.set-matrix.outputs.branches}}
check-branch:
needs: build-matrix
runs-on: [self-hosted, linux]
permissions:
contents: write
pull-requests: write
strategy:
matrix:
branch: ${{fromJson(needs.build-matrix.outputs.branches)}}
env:
BRANCH: ${{matrix.branch}}
CREATE_DRAFT: true
REPO_STATUS: private
steps:
- name: "Initialise Workspace"
if: startsWith(runner.name, 'buildagent-')
shell: bash
run: sudo chown -R "$USER:$USER" "$GITHUB_WORKSPACE"
- name: "Harden Security"
uses: step-security/harden-runner@v2.7.1
with:
egress-policy: audit
disable-sudo: true
allowed-endpoints: >
api.github.com:443
api.osv.dev:443
api.securityscorecards.dev:443
codeload.github.com:443
fulcio.sigstore.dev:443
github.com:443
oss-fuzz-build-logs.storage.googleapis.com:443
rekor.sigstore.dev:443
tuf-repo-cdn.sigstore.dev:443
www.bestpractices.dev:443
- name: "Checkout Source"
uses: actions/checkout@v4.1.1
with:
fetch-depth: 0
fetch-tags: true
ref: main
repository: ${{github.repository}}
- name: "Check Repo Visibility"
if: github.repository_owner != 'funfair-tech'
uses: credfeto/action-repo-visibility@v1.2.0
id: visibility
with:
repository: ${{github.repository}}
token: ${{secrets.SOURCE_PUSH_TOKEN}}
- name: "Override DRAFT Flag"
if: github.repository_owner != 'funfair-tech' && env.REPO_STATUS == 'private'
shell: bash
run: echo "CREATE_DRAFT=false" >> "$GITHUB_ENV"
- name: "Branch Detection"
id: detection
shell: bash
run: |
echo "defaultbranch=$(git remote show origin | grep -Po 'HEAD\sbranch:\s+\K[^.*]*')" >> "$GITHUB_OUTPUT"
echo "DEFAULT_BRANCH=$(git remote show origin | grep -Po 'HEAD\sbranch:\s+\K[^.*]*')" >> "$GITHUB_ENV"
# On Default branch
- name: "On Default Branch"
if: steps.detection.outputs.defaultbranch == matrix.branch
uses: actions/github-script@v7.0.1
with:
script: |
core.info("On Default branch - don't do anything");
# On Non-Default branch
- name: "On Non-Default branch"
if: steps.detection.outputs.defaultbranch != matrix.branch
uses: actions/github-script@v7.0.1
with:
script: |
core.info('On non-default branch');
- name: "Find Existing PR"
if: steps.detection.outputs.defaultbranch != matrix.branch
uses: juliangruber/find-pull-request-action@v1.9.0
id: find-pull-request
with:
branch: "${{env.BRANCH}}"
- name: "Display Found PR"
if: steps.detection.outputs.defaultbranch != matrix.branch
shell: bash
run: echo "Pull Request ${{steps.find-pull-request.outputs.number}} (${{steps.find-pull-request.outputs.head-sha}})"
- name: "Check Branch Status"
if: steps.detection.outputs.defaultbranch != matrix.branch && steps.find-pull-request.outputs.number == ''
shell: bash
run:
echo "Check to see if ${{env.DEFAULT_BRANCH}} is ahead or behind ${{matrix.branch}}..."
git rev-list --left-right --count "origin/${{env.DEFAULT_BRANCH}}...origin/${{matrix.branch}}"
git rev-list --left-right --count "origin/${{env.DEFAULT_BRANCH}}...origin/${{matrix.branch}}" | awk '{ print "${{env.BRANCH}} is behind ${{env.DEFAULT_BRANCH}} by "$1" commit(s)" }'
git rev-list --left-right --count "origin/${{env.DEFAULT_BRANCH}}...origin/${{matrix.branch}}" | awk '{ print "${{matrix.BRANCH}} is ahead of ${{env.DEFAULT_BRANCH}} by "$2" commit(s)" }'
env:
DEFAULT_BRANCH: ${{steps.detection.outputs.defaultbranch}}
- name: "Get last update time of branch"
if: steps.detection.outputs.defaultbranch != matrix.branch && steps.find-pull-request.outputs.number == ''
id: lastupdate
shell: bash
run: echo "time=$(git log -1 --format=@%ct origin/${{env.BRANCH}})" >> "$GITHUB_OUTPUT"
- name: "Check Ahead and Behind Status"
if: steps.detection.outputs.defaultbranch != matrix.branch && steps.find-pull-request.outputs.number == ''
id: aheadbehind
shell: bash
run: >
{ \
git rev-list --left-right --count "origin/${{env.DEFAULT_BRANCH}}...origin/${{env.BRANCH}}" \
| awk '{ print "behind="$1 }' ; \
git rev-list --left-right --count "origin/${{env.DEFAULT_BRANCH}}...origin/${{env.BRANCH}}" \
| awk '{ print "ahead="$2 }' ; \
echo "dayssinceupdate=$((($(date +%s)-$(date +%s --date ${{env.LAST_UPDATE}}))/(3600*24)))" ; \
echo "COMMIT_MSG=$(git log -1 --pretty=%B "${{env.ORIGIN_DEFAULT_BRANCH}}")" ; \
} >> "$GITHUB_OUTPUT"
env:
DEFAULT_BRANCH: ${{steps.detection.outputs.defaultbranch}}
ORIGIN_DEFAULT_BRANCH: origin/${{steps.detection.outputs.defaultbranch}}
LAST_UPDATE: ${{steps.lastupdate.outputs.time}}
# Non-default - ahead of default branch, and no -re-existing PR then create one.
- name: "Read PR Template"
if: |-
steps.detection.outputs.defaultbranch != matrix.branch
&& steps.find-pull-request.outputs.number == ''
&& steps.aheadbehind.outputs.ahead != 0
&& steps.aheadbehind.outputs.dayssinceupdate > 7
id: pr-template
uses: juliangruber/read-file-action@v1.1.7
with:
path: ./.github/PULL_REQUEST_TEMPLATE.md
- name: "Create PR"
if: |-
steps.detection.outputs.defaultbranch != matrix.branch
&& steps.find-pull-request.outputs.number == ''
&& steps.aheadbehind.outputs.ahead != 0
&& steps.aheadbehind.outputs.dayssinceupdate > 7
id: open-pr
uses: repo-sync/pull-request@v2.12
with:
source_branch: ${{matrix.branch}} # If blank, default: triggered branch
destination_branch: ${{steps.detection.outputs.defaultbranch}} # If blank, default: master
pr_assignee: "${{github.actor}}" # Comma-separated list (no spaces)
pr_label: "auto-pr,stale" # Comma-separated list (no spaces)
pr_draft: ${{env.CREATE_DRAFT}} # Creates pull request as draft
pr_title: "${{steps.aheadbehind.outputs.COMMIT_MSG}} [No commits for ${{steps.aheadbehind.outputs.dayssinceupdate}} days]"
pr_body: "${{steps.pr-template.outputs.content}}"
github_token: ${{github.token}}
- name: "New PR Details"
if: |-
steps.detection.outputs.defaultbranch != matrix.branch
&& steps.find-pull-request.outputs.number == ''
&& steps.aheadbehind.outputs.ahead != 0
&& steps.aheadbehind.outputs.dayssinceupdate > 7
uses: actions/github-script@v7.0.1
with:
script: |
core.info('URL: ${{steps.open-pr.outputs.pr_url}}');
core.info('PR: ${{steps.open-pr.outputs.pr_number}}');
core.info('CF: ${{steps.open-pr.outputs.has_changed_files}}');
- name: "Update PR Labels"
if: steps.open-pr.outputs.pr_number != ''
uses: actions/labeler@v5
with:
repo-token: ${{secrets.SOURCE_PUSH_TOKEN}}
configuration-path: .github/labeler.yml
sync-labels: true
pr-number: ${{steps.open-pr.outputs.pr_number}}
- name: "Rebase"
if: |-
steps.detection.outputs.defaultbranch != matrix.branch
&& steps.find-pull-request.outputs.number == ''
&& steps.aheadbehind.outputs.behind != 0
&& steps.aheadbehind.outputs.ahead != 0
&& steps.aheadbehind.outputs.dayssinceupdate > 7
uses: actions/github-script@v7.0.1
with:
script: |
core.info('Rebase?');
- name: "Delete Branch"
if: |-
steps.detection.outputs.defaultbranch != matrix.branch
&& steps.find-pull-request.outputs.number == ''
&& steps.aheadbehind.outputs.ahead == '0'
&& steps.aheadbehind.outputs.dayssinceupdate > 60
uses: dawidd6/action-delete-branch@v3.1.0
with:
github_token: ${{secrets.SOURCE_PUSH_TOKEN}}
branches: ${{matrix.branch}}
- name: "Statistics"
if: |-
steps.detection.outputs.defaultbranch != matrix.branch
&& steps.find-pull-request.outputs.number == ''
uses: actions/github-script@v7.0.1
with:
script: |
core.info('Ahead: ${{steps.aheadbehind.outputs.ahead}}');
core.info('Behind: ${{steps.aheadbehind.outputs.behind}}');
core.info('Last Commit: ${{steps.aheadbehind.outputs.dayssinceupdate}} days ago');