safe-chat-slack-bot/.github/workflows/release.yml at main · marcieltorres/safe-chat-slack-bot · GitHub

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name: release

on:
  push:
    branches: [main]
    paths:
      - "pyproject.toml"
      - "CHANGELOG.md"
  workflow_dispatch:
    inputs:
      dry_run:
        description: "Only print the release notes; do not create the tag or the release"
        type: boolean
        default: false

permissions: {}

concurrency:
  group: release
  cancel-in-progress: false

jobs:
  release:
    name: "Tag and Publish Release"
    if: github.repository == 'marcieltorres/safe-chat-slack-bot'
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Check out repository code
        uses: actions/checkout@v7
        with:
          fetch-depth: 0

      - name: Read the version from pyproject.toml
        id: version
        run: |
          python3 - <<'PY' >> "$GITHUB_OUTPUT"
          import re
          import tomllib

          with open("pyproject.toml", "rb") as handler:
              version = tomllib.load(handler)["tool"]["poetry"]["version"]

          if not re.fullmatch(r"\d+\.\d+\.\d+", version):
              raise SystemExit(f"::error::invalid version in pyproject.toml: {version!r}")

          print(f"version={version}")
          PY

      - name: Check whether the tag already exists
        id: tag
        env:
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          if git rev-parse -q --verify "refs/tags/${VERSION}" > /dev/null; then
            echo "exists=true" >> "$GITHUB_OUTPUT"
            echo "::notice::tag ${VERSION} already exists, nothing to release"
          else
            echo "exists=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Extract the release notes from CHANGELOG.md
        if: steps.tag.outputs.exists == 'false'
        env:
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          python3 - <<'PY'
          import os
          import pathlib
          import re

          version = os.environ["VERSION"]
          changelog = pathlib.Path("CHANGELOG.md").read_text(encoding="utf-8")
          section = re.search(
              rf"^## \[{re.escape(version)}\].*?$\n(?P<body>.*?)(?=^## \[|^\[[^\]]+\]:|\Z)",
              changelog,
              re.MULTILINE | re.DOTALL,
          )

          if section is None:
              raise SystemExit(f"::error::CHANGELOG.md has no '## [{version}]' section")

          body = section.group("body").strip()
          if not body:
              raise SystemExit(f"::error::the '## [{version}]' section is empty")

          pathlib.Path("release-notes.md").write_text(f"{body}\n", encoding="utf-8")
          PY
          cat release-notes.md

      - name: Create and push the tag
        if: steps.tag.outputs.exists == 'false' && !inputs.dry_run
        env:
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git tag -a "${VERSION}" -m "${VERSION}"
          git push origin "${VERSION}"

      - name: Publish the GitHub Release
        if: steps.tag.outputs.exists == 'false' && !inputs.dry_run
        env:
          VERSION: ${{ steps.version.outputs.version }}
          GH_TOKEN: ${{ github.token }}
        run: |
          gh release create "${VERSION}" \
            --title "${VERSION}" \
            --notes-file release-notes.md \
            --verify-tag