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Automerge version bumps #200

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May 22, 2024
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64 changes: 64 additions & 0 deletions .github/workflows/automerge.yaml
Original file line number Diff line number Diff line change
@@ -0,0 +1,64 @@
# This Workflow automatically merges pull requests, submitted by certain users
# if they pass certain criteria.
# WARNING: If you change this file, it is mandatory to file a CREQ request to
# approve the changes.
name: Automerge version bumps

on:
pull_request:
branches: [ master ]
paths:
# Trigger the workflow only for certain files. First we need to exclude all
# files, then add the files we care about.
- "!**"
- "Formula/cockroach.rb"
- "Formula/cockroach@*.rb"
- "Formula/cockroach-sql.rb"

permissions:
contents: write
pull-requests: write

jobs:
automerge:
runs-on: ubuntu-latest
if: ${{ github.actor == 'cockroach-teamcity' }}
steps:
- uses: actions/checkout@v4
with:
# Fetch all branches so it is possible to checkout the default branch files.
fetch-depth: 0
- name: List changed files
id: files
uses: jitterbit/get-changed-files@v1
# The next steps tries to reproduce the steps taken to generate the
# files. We restore the changed files to their original state on the
# default branch, run the commands to regenerate the change, and verify
# the result matches the PR contents (git diff does not show any changes).
- name: Regenerate the patch
run: |
set -euxo pipefail
for changed_file in ${{ steps.files.outputs.all }}; do
version="$(grep 'version "' "$changed_file" | cut -d'"' -f2)"
git checkout origin/master -- "$changed_file"
git restore --staged "$changed_file"
master_version="$(grep 'version "' "$changed_file" | cut -d'"' -f2)"
# Prevent downgrades
latest_version="$(echo -e "$version\n$master_version" | sort --version-sort -r | head -n1)"
if [[ $latest_version != $version ]]; then
echo "Downgrades are not permitteed in automatic mode, $version < $latest_version"
exit 1
fi
filename=$(basename $changed_file)
make PRODUCT="${filename%.*}" VERSION="$version"
done
- name: Verify nothing changed
run: git diff --exit-code
- name: Approve a PR
run: gh pr review --approve "${{github.event.pull_request.html_url}}"
env:
GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
- name: Enable auto-merge
run: gh pr merge --auto --merge "${{github.event.pull_request.html_url}}"
env:
GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
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