release.yml

name: Release

on:
  pull_request:
    types:
      - closed
    branches:
      - master

permissions:
  contents: write
  pull-requests: read

jobs:
  release:
    name: Create release after versioned PR merge
    runs-on: ubuntu-latest
    if: github.event.pull_request.merged == true

    steps:
      - name: Checkout merged commit
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.merge_commit_sha }}
          fetch-depth: 0

      - name: Resolve version label
        id: version
        uses: actions/github-script@v7
        with:
          script: |
            const labels = context.payload.pull_request.labels.map((label) => label.name);
            const versionLabels = labels.filter((name) => /^v\d+\.\d+(\.\d+)?$/.test(name));

            if (versionLabels.length !== 1) {
              core.setFailed(`Merged pull request must have exactly one version label like v0.6. Found: ${versionLabels.join(', ') || 'none'}`);
              return;
            }

            core.setOutput('tag', versionLabels[0]);

      - name: Create git tag
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          if git rev-parse "${{ steps.version.outputs.tag }}" >/dev/null 2>&1; then
            echo "Tag ${{ steps.version.outputs.tag }} already exists locally."
            exit 0
          fi
          git tag "${{ steps.version.outputs.tag }}" "${{ github.event.pull_request.merge_commit_sha }}"
          git push origin "${{ steps.version.outputs.tag }}"

      - name: Create GitHub release
        uses: actions/github-script@v7
        with:
          script: |
            const tag = '${{ steps.version.outputs.tag }}';
            const pr = context.payload.pull_request;
            const extractSection = (body, heading) => {
              const escapedHeading = heading.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
              const pattern = new RegExp(`(?:^|\\n)##\\s+${escapedHeading}\\s*\\n([\\s\\S]*?)(?=\\n##\\s+|$)`, 'i');
              const match = body.match(pattern);

              return match ? match[1].trim() : '';
            };
            const summary = extractSection(pr.body || '', 'Summary');
            const releaseChanges = summary || (pr.body || '').trim() || `- ${pr.title}`;
            const releaseBody = [
              '## Changes',
              '',
              releaseChanges,
              '',
              '## Pull request',
              '',
              `#${pr.number}: ${pr.html_url}`,
            ].join('\n');

            try {
              await github.rest.repos.createRelease({
                owner: context.repo.owner,
                repo: context.repo.repo,
                tag_name: tag,
                name: `ShiftPHP ${tag}`,
                target_commitish: pr.merge_commit_sha,
                body: releaseBody,
                draft: false,
                prerelease: false,
              });
            } catch (error) {
              if (error.status === 422) {
                core.info(`Release ${tag} already exists.`);
                return;
              }

              throw error;
            }