measure_pull_request_lead_time.yaml

name: Measure and comment on time from first commit to merge
run-name: Measure ${{ github.actor }}'s time from first commit to merge

on:
  pull_request:
    branches:
      - develop
    types: [closed]

jobs:
  lead-time:
    if: github.event.pull_request.merged == true && !startsWith(github.event.pull_request.base.ref, 'epic')
    runs-on: ubuntu-latest
    env:
      GITHUB_TOKEN: ${{ github.token }}
      PR_NODE_ID: ${{ github.event.pull_request.node_id }}
    permissions:
      pull-requests: write
    steps:
      - name: checkout
        # NOTE: https://github.com/actions/checkout/releases/tag/v3.5.2
        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
        with:
          fetch-depth: 0

      - name: calculate lead time
        id: calculate_lead_time
        # NOTE: https://github.com/actions/github-script/releases/tag/v6.4.0
        uses: actions/github-script@98814c53be79b1d30f795b907e553d8679345975
        with:
          script: |
            const query = `
              query($id: ID!) {
                node(id: $id) {
                  ... on PullRequest {
                    mergedAt
                    commits(first: 1) {
                      nodes {
                        commit {
                          authoredDate
                        }
                      }
                    }
                  }
                }
              }
            `;
            const result = await github.graphql(query, {id: process.env.PR_NODE_ID});
            const mergedAt = new Date(result.node.mergedAt);
            const authoredDate = new Date(result.node.commits.nodes[0].commit.authoredDate);
            const leadTimeHour = Math.round((mergedAt - authoredDate) / 3600000);
            return leadTimeHour;

      - name: comment
        run: |
          set -x
          LEAD_TIME_HOUR=${{ steps.calculate_lead_time.outputs.result }}
          LEAD_TIME_HOUR="3"
          if [ $LEAD_TIME_HOUR -eq 0 ]; then
            LEAD_TIME_HOUR_TEXT="1時間未満"
            LEAD_TIME_DAY_TEXT="0日"
          else
            LEAD_TIME_HOUR_TEXT="${LEAD_TIME_HOUR}時間"
            LEAD_TIME_DAY=$(( ${LEAD_TIME_HOUR} / 24 ))
            LEAD_TIME_DAY_TEXT="${LEAD_TIME_DAY}日"
          fi
          COMMENT_TEXT="@${{ github.event.pull_request.user.login }} \n## 初回コミットからdevelopへマージされるまでのリードタイム\n${LEAD_TIME_DAY_TEXT} (${LEAD_TIME_HOUR_TEXT})でした、お疲れ様でした :ok2:"
          echo "COMMENT_TEXT: ${COMMENT_TEXT}"
          gh pr comment ${{ github.event.pull_request.html_url }} -b "$(echo -e "${COMMENT_TEXT}")"
          echo $?