auto-triage-issue.yml

name: Auto Create Monthly GitHub Triage Issue (Create + Close Previous)

on:
  schedule:
    - cron: '5 7 1 * *'  # 07:05 UTC on the 1st day of each month
  workflow_dispatch:

permissions:
  issues: write
  contents: read

jobs:
  ensure-triage-issue:
    runs-on: ubuntu-latest
    steps:
      - name: Compute date context
        id: dates
        run: |
          YEAR_MONTH=$(date -u +'%Y-%m')
          PREV_YEAR_MONTH=$(date -u -d "$(date -u +%Y-%m-01) -1 month" +'%Y-%m')
          echo "year_month=$YEAR_MONTH" >> $GITHUB_OUTPUT
          echo "prev_year_month=$PREV_YEAR_MONTH" >> $GITHUB_OUTPUT

      - name: Create current triage & close previous
        uses: actions/github-script@v7
        with:
          script: |
            const current = core.getInput('current') || '${{ steps.dates.outputs.year_month }}';
            const previous = core.getInput('previous') || '${{ steps.dates.outputs.prev_year_month }}';
            const currentTitle = `GitHub Triage: ${current}`;
            const previousTitle = `GitHub Triage: ${previous}`;

            async function findIssueByExactTitle(title) {
              const perPage = 100;
              for (let page = 1; page < 50; page++) {
                const { data } = await github.rest.issues.listForRepo({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  state: 'all',
                  per_page: perPage,
                  page
                });
                if (!data.length) break;
                const hit = data.find(i => i.title === title);
                if (hit) return hit;
                if (data.length < perPage) break;
              }
              return null;
            }

            // Close previous month issue if open
            const prevIssue = await findIssueByExactTitle(previousTitle);
            if (prevIssue && prevIssue.state === 'open') {
              await github.rest.issues.update({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prevIssue.number,
                state: 'closed'
              });
              core.notice(`Closed previous triage issue #${prevIssue.number} (${previousTitle}).`);
            } else {
              core.info(`No open previous triage issue to close (title: ${previousTitle}).`);
            }

            // Ensure current month issue
            const currIssue = await findIssueByExactTitle(currentTitle);
            if (currIssue) {
              core.info(`Current triage issue already exists: #${currIssue.number}`);
              return;
            }

            const body = `
### Monthly GitHub Triage – ${current}

Automatically generated tracking issue for ${current}.

#### Purpose
- Collect newly opened issues for classification.
- Track placeholders (titles containing \`[REPLACE_WITH_MODULE_TITLE]\`).
- Identify consolidation / closure candidates.

#### Actions
- Apply governance labels.
- Escalate support or experience issues.
- Prepare weekly summaries (see companion workflow).

:octocat: :copilot: Created automatically.
            `.trim();

            const created = await github.rest.issues.create({
              owner: context.repo.owner,
              repo: context.repo.repo,
              title: currentTitle,
              body,
              labels: ['triage']
            });
            core.notice(`Created new triage issue #${created.data.number} (${currentTitle}).`);