release.yml

name: Release
on:
  push:
    branches: [main]
    paths: ['packages/*/package.json']
  workflow_dispatch:
permissions:
  contents: read
concurrency:
  group: release
  cancel-in-progress: false
jobs:
  release:
    if: github.ref == 'refs/heads/main'
    permissions:
      contents: write
      actions: write
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
        with:
          fetch-depth: 0
      - name: Release merged package versions
        env:
          BEFORE: ${{ github.event.before }}
          GH_TOKEN: ${{ github.token }}
        run: |
          set -euo pipefail
          for package in context-tree git-stats; do
            version=$(jq -r .version "packages/$package/package.json")
            [[ "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+([-.][0-9A-Za-z.-]+)?$ ]]
            if [ "$GITHUB_EVENT_NAME" = push ]; then
              previous=$(git show "$BEFORE:packages/$package/package.json" | jq -r .version)
              if [ "$previous" = "$version" ]; then continue; fi
            fi
            tag="$package-v$version"
            if git show-ref --verify --quiet "refs/tags/$tag"; then
              test "$(git rev-parse "refs/tags/$tag^{commit}")" = "$GITHUB_SHA" || { echo 'Existing tag targets a different commit' >&2; exit 1; }
            fi
            gh api "repos/$GITHUB_REPOSITORY/releases?per_page=100" --jq '.[].tag_name' > releases.txt
            if ! grep -Fxq "$tag" releases.txt; then
              grep -Fq "## $version" "packages/$package/CHANGELOG.md"
              flags=(); case "$version" in *-*) flags=(--prerelease);; esac
              gh release create "$tag" --target "$GITHUB_SHA" --title "$tag" --generate-notes "${flags[@]}"
              gh workflow run publish.yml --ref "$tag" -f package="$package"
            elif [ "$GITHUB_EVENT_NAME" = workflow_dispatch ]; then
              gh workflow run publish.yml --ref "$tag" -f package="$package"
            fi
          done