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Create auto-merge.yml
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‎.github/workflows/auto-merge.yml‎

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name: Auto Merge Dependabot PRs
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on:
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pull_request:
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types:
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- opened
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- synchronize
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permissions:
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pull-requests: write
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contents: write
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jobs:
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auto-merge:
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runs-on: ubuntu-latest
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if: github.actor == 'dependabot[bot]'
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steps:
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- name: Checkout the repository
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uses: actions/checkout@v3
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- name: Set up GitHub CLI
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run: |
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# Install GitHub CLI (gh)
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sudo apt-get update
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sudo apt-get install gh
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# Authenticate GitHub CLI using the provided token
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echo ${{ secrets.GITHUB_TOKEN }} | gh auth login --with-token
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- name: Wait for CI workflow to pass (Ensure CI workflow succeeded)
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id: wait_for_ci
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run: |
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# Get the PR number from the GitHub event
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PR_NUMBER=${{ github.event.pull_request.number }}
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echo "Checking CI status for PR #$PR_NUMBER"
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# Define the maximum wait time (in seconds) and the polling interval (in seconds)
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MAX_WAIT_TIME=600 # 10 minutes
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POLL_INTERVAL=10 # Check every 10 seconds
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# Initialize a timer
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elapsed_time=0
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# Poll CI status until all checks are completed
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while true; do
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# Fetch the status check rollup for the PR
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CI_STATUS=$(gh pr view $PR_NUMBER --json statusCheckRollup)
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# Log the fetched response
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echo "CI Status Response: $CI_STATUS"
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# Parse the checks and check their status
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ALL_COMPLETED=true
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ALL_CHECKS_PASSED=true
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for check in $(echo "$CI_STATUS" | jq -r '.statusCheckRollup[] | @base64'); do
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_jq() {
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echo "${check}" | base64 --decode | jq -r "${1}"
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}
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status=$(_jq '.status')
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conclusion=$(_jq '.conclusion')
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check_name=$(_jq '.name')
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# Log check details
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echo "Check: $check_name, Status: $status, Conclusion: $conclusion"
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if [[ "$check_name" == "auto-merge" ]]; then
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echo "Skipping 'auto-merge' workflow check to prevent self-referencing."
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continue
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fi
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# If any check is still in progress, set ALL_COMPLETED to false
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if [[ "$status" == "IN_PROGRESS" ]]; then
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ALL_COMPLETED=false
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fi
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# If any completed check has failed, set ALL_CHECKS_PASSED to false
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if [[ "$status" == "COMPLETED" && "$conclusion" != "SUCCESS" ]]; then
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ALL_CHECKS_PASSED=false
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fi
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done
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# Break the loop if all checks are completed
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if [[ "$ALL_COMPLETED" == true ]]; then
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break
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fi
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# Wait for the next polling interval
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echo "Waiting for checks to complete... ($elapsed_time/$MAX_WAIT_TIME seconds elapsed)"
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sleep $POLL_INTERVAL
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elapsed_time=$((elapsed_time + POLL_INTERVAL))
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# Exit if the maximum wait time is exceeded
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if [[ "$elapsed_time" -ge "$MAX_WAIT_TIME" ]]; then
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echo "Timed out waiting for CI checks to complete."
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exit 1
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fi
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done
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# Final check: Ensure all CI checks passed
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if [[ "$ALL_CHECKS_PASSED" == false ]]; then
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echo "One or more CI checks failed. Aborting merge."
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exit 1
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fi
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echo "All CI checks passed successfully."
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- name: Check Target Branch and PR Title
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id: check_branch
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run: |
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PR_TITLE='${{ github.event.pull_request.title }}'
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echo "Original PR Title: $PR_TITLE"
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# Escape problematic quotes
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ESCAPED_TITLE=$(echo "$PR_TITLE" | sed 's/"/\\"/g')
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echo "Escaped PR Title: $ESCAPED_TITLE"
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if [[ "$ESCAPED_TITLE" =~ ([0-9]+\.[0-9]+\.[0-9]+).*to.*([0-9]+\.[0-9]+\.[0-9]+) ]]; then
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# Extract version numbers
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OLD_VERSION="${BASH_REMATCH[1]}"
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NEW_VERSION="${BASH_REMATCH[2]}"
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echo "Version change detected: $OLD_VERSION to $NEW_VERSION"
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# Split version into major, minor, patch components
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OLD_MAJOR=$(echo "$OLD_VERSION" | cut -d '.' -f1)
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OLD_MINOR=$(echo "$OLD_VERSION" | cut -d '.' -f2)
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OLD_PATCH=$(echo "$OLD_VERSION" | cut -d '.' -f3)
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NEW_MAJOR=$(echo "$NEW_VERSION" | cut -d '.' -f1)
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NEW_MINOR=$(echo "$NEW_VERSION" | cut -d '.' -f2)
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NEW_PATCH=$(echo "$NEW_VERSION" | cut -d '.' -f3)
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# Check if it's a minor or patch update
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if [[ "$OLD_MAJOR" == "$NEW_MAJOR" ]] && [[ "$OLD_MINOR" == "$NEW_MINOR" ]] && [[ "$NEW_PATCH" -gt "$OLD_PATCH" ]]; then
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echo "Patch update detected"
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echo "should_merge=true" >> $GITHUB_ENV
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elif [[ "$OLD_MAJOR" == "$NEW_MAJOR" ]] && [[ "$NEW_MINOR" -gt "$OLD_MINOR" ]]; then
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echo "Minor update detected"
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echo "should_merge=true" >> $GITHUB_ENV
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else
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echo "No minor/patch update detected"
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echo "should_merge=false" >> $GITHUB_ENV
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fi
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else
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echo "No version change detected"
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echo "should_merge=false" >> $GITHUB_ENV
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fi
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- name: Debug Context
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uses: actions/github-script@v6
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with:
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script: |
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console.log("Target branch:", context.payload.pull_request.base.ref);
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- name: Check if Should Merge
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run: |
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echo "DEBUG: should_merge=${{ env.should_merge }}"
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if [[ "${{ env.should_merge }}" == "true" ]] && [[ "${{ github.event.pull_request.base.ref }}" == "Automatic_version_update_dependabot" ]]; then
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echo "DEBUG: should merge PR"
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echo "should_merge=true" >> $GITHUB_ENV
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else
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echo "DEBUG: skip merge"
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echo "should_merge=false" >> $GITHUB_ENV
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fi
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- name: Merge Pull Request
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if: ${{ env.should_merge == 'true' }}
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uses: actions/github-script@v6
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with:
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script: |
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github.rest.pulls.merge({
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owner: context.repo.owner,
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repo: context.repo.repo,
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pull_number: context.payload.pull_request.number,
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merge_method: "squash"
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});

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