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dependabot-auto-merge.yaml
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# see https://docs.github.com/en/code-security/dependabot/working-with-dependabot/automating-dependabot-with-github-actions#enable-auto-merge-on-a-pull-request
name: Dependabot auto-merge
on: pull_request
permissions:
contents: write
pull-requests: write
jobs:
dependabot:
runs-on: ubuntu-latest
if: github.actor == 'dependabot[bot]'
steps:
- name: Dependabot metadata
id: metadata
uses: dependabot/fetch-metadata@c9c4182bf1b97f5224aee3906fd373f6b61b4526 # v1.6.0
with:
github-token: "${{ secrets.GITHUB_TOKEN }}"
- name: Check whether anyone besides dependabot has pushed
id: pr_author
run: |
EXTRA_AUTHORS=$(gh pr view "$PR_URL" --json commits --jq '.commits[] | .authors[] | .login' | sort | uniq | grep -v dependabot)
if [ -n "$EXTRA_AUTHORS" ]; then
echo "PR has authors in addition to dependabot: $EXTRA_AUTHORS"
echo "human_pushed=true" >> "$GITHUB_OUTPUT"
else
echo "human_pushed=false" >> "$GITHUB_OUTPUT"
fi
env:
PR_URL: ${{github.event.pull_request.html_url}}
GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
- name: Enable auto-merge for Dependabot PRs
if: >
${{
( steps.pr_author.human_pushed != "true" ) &&
( steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor' )
}}
run: gh pr merge --auto --squash "$PR_URL" && gh pr review --approve "$PR_URL"
env:
PR_URL: ${{github.event.pull_request.html_url}}
GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
- name: Disable auto-merge if human modified PR
if: steps.pr_author.human_pushed == "true"
run: |
echo "disabling auto-merge due to non-dependabot push"
gh pr merge --disable-auto "$PR_URL"
env:
PR_URL: ${{github.event.pull_request.html_url}}
GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}