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Add Dependabot auto-merge workflow #95

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Nov 3, 2025
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Add Dependabot auto-merge workflow #95

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15 changes: 15 additions & 0 deletions .github/workflows/auto-dependabot.yaml
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Original file line number Diff line number Diff line change
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name: Auto-approve Dependabot PRs

on:
pull_request:
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Copilot AI Nov 3, 2025

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The workflow triggers on all pull_request events but only processes Dependabot PRs. Consider using pull_request_target event with type filters like [opened, synchronize, reopened] to better control when this workflow runs, or add types to the pull_request trigger to avoid unnecessary workflow executions.

Suggested change
pull_request:
pull_request:
types: [opened, synchronize, reopened]

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jobs:
auto-approve:
runs-on: ubuntu-latest
if: github.actor == 'dependabot[bot]'
steps:
- name: Auto-approve and merge Dependabot PRs
Comment on lines +10 to +11
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Copilot AI Nov 3, 2025

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Using secrets.GITHUB_TOKEN with auto-merge for Dependabot PRs bypasses code review and CI checks. Consider adding conditions to verify that CI checks have passed before auto-merging, or restrict auto-merge to patch/minor updates only to reduce risk of breaking changes being merged automatically.

Suggested change
steps:
- name: Auto-approve and merge Dependabot PRs
steps:
- name: Wait for required status checks
uses: actions/github-script@v6
id: check-status
with:
github-token: ${{ secrets.GITHUB_TOKEN }}
script: |
const pr = await github.rest.pulls.get({
owner: context.repo.owner,
repo: context.repo.repo,
pull_number: context.issue.number,
});
const sha = pr.data.head.sha;
const checks = await github.rest.checks.listForRef({
owner: context.repo.owner,
repo: context.repo.repo,
ref: sha,
});
const failed = checks.data.check_runs.filter(
c => c.status === "completed" && c.conclusion !== "success"
);
if (failed.length > 0) {
core.setFailed("Some required status checks have not passed.");
}
- name: Auto-approve and merge Dependabot PRs
if: steps.check-status.outcome == 'success'

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uses: frequenz-floss/[email protected]
with:
github-token: ${{ secrets.GITHUB_TOKEN }}
merge-method: merge