github-release.yml

# Given a version, finds a merged release pr with release version in the title and uses pr body to generate release notes
# NOTE: We expected the merged pr title to be `chore: Release ${version}` or `Release ${version}` e.g. `chore: Release 5.2.15` or `Release 5.2.15`
name: Create GitHub Release

on:
  workflow_call:
    inputs:
      version:
        required: true
        type: string
        description: Version to release
    secrets:
      # In case we want to trigger other workflows like ones that uses pushed tags
      GH_PUSH_TOKEN:
        required: false
        description: GitHub token with push permissions

permissions:
  contents: write

jobs:
  create_release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Create release notes
        uses: actions/github-script@v8
        id: release_notes
        env:
          VERSION: ${{ inputs.version }}
        with:
          script: |
            const version = process.env.VERSION;
            let releaseNotes = '';

            const prs = await github.rest.pulls.list({
              owner: context.repo.owner,
              repo: context.repo.repo,
              state: 'closed',
              sort: 'updated',
              direction: 'desc',
              per_page: 50
            });

            const releasePr = prs.data.find(pr =>
              pr.merged_at && pr.title.replace(/^chore:\s*/i, '').startsWith(`Release ${version}`)
            );

            if (releasePr) {
              releaseNotes = releasePr.body.split('<!--')[0].trim();
            }

            core.setOutput('notes', releaseNotes);

      - name: Create GitHub Release
        uses: actions/github-script@v8
        env:
          RELEASE_NOTES: ${{ steps.release_notes.outputs.notes }}
        with:
          github-token: ${{ secrets.GH_PUSH_TOKEN || github.token }}
          script: |
            const notes = process.env.RELEASE_NOTES;
            const version = '${{ inputs.version }}';
            const isPrerelease = /alpha|beta/i.test(version);

            await github.rest.repos.createRelease({
              owner: context.repo.owner,
              repo: context.repo.repo,
              tag_name: version,
              name: version,
              body: notes,
              draft: false,
              prerelease: isPrerelease
            });