.github/workflows/source-release-draft.yml

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

name: Build Source Release Draft

on:
  push:
    tags:
      - "v*"

permissions:
  contents: write

jobs:
  build-source-release-draft:
    if: ${{ github.repository == 'apache/casbin' && !contains(github.ref_name, '-') }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Compute release metadata
        id: release
        run: |
          TAG_NAME="${GITHUB_REF_NAME}"
          if ! [[ "${TAG_NAME}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            echo "Unsupported release tag: ${TAG_NAME}" >&2
            exit 1
          fi

          VERSION="${TAG_NAME#v}"
          BASENAME="casbin-${VERSION}-src"
          PREVIOUS_TAG="$(
            git tag --list 'v*' |
              grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' |
              sort -V |
              awk -v current="${TAG_NAME}" '
                $0 == current {
                  print previous
                  exit
                }
                {
                  previous = $0
                }
              '
          )"

          echo "tag=${TAG_NAME}" >> "${GITHUB_OUTPUT}"
          echo "version=${VERSION}" >> "${GITHUB_OUTPUT}"
          echo "basename=${BASENAME}" >> "${GITHUB_OUTPUT}"
          echo "previous_tag=${PREVIOUS_TAG}" >> "${GITHUB_OUTPUT}"

      - name: Generate release notes
        run: |
          CURRENT_TAG="${{ steps.release.outputs.tag }}"
          CURRENT_VERSION="${CURRENT_TAG#v}"
          PREVIOUS_TAG="${{ steps.release.outputs.previous_tag }}"
          RELEASE_DATE="$(date -u +%F)"
          RANGE="${CURRENT_TAG}"

          if [ -n "${PREVIOUS_TAG}" ]; then
            RANGE="${PREVIOUS_TAG}..${CURRENT_TAG}"
          fi

          FEATURES="$(git log --pretty=format:'%s (%h)' "${RANGE}" | grep -Ei '^(feat)(\(.+\))?: ' || true)"
          FIXES="$(git log --pretty=format:'%s (%h)' "${RANGE}" | grep -Ei '^(fix)(\(.+\))?: ' || true)"
          DOCS="$(git log --pretty=format:'%s (%h)' "${RANGE}" | grep -Ei '^(docs?|doc)(\(.+\))?: ' || true)"

          {
            if [ -n "${PREVIOUS_TAG}" ]; then
              echo "# [${CURRENT_VERSION}](https://github.com/${GITHUB_REPOSITORY}/compare/${PREVIOUS_TAG}...${CURRENT_TAG}) (${RELEASE_DATE})"
            else
              echo "# ${CURRENT_VERSION} (${RELEASE_DATE})"
            fi
            echo
            echo "This GitHub release is a draft helper for packaging and release notes."
            echo
            if [ -n "${FEATURES}" ]; then
              echo "## Features"
              echo
              printf '%s\n' "${FEATURES}" | sed 's/^/- /'
              echo
            fi

            if [ -n "${FIXES}" ]; then
              echo "## Fixes"
              echo
              printf '%s\n' "${FIXES}" | sed 's/^/- /'
              echo
            fi

            if [ -n "${DOCS}" ]; then
              echo "## Docs"
              echo
              printf '%s\n' "${DOCS}" | sed 's/^/- /'
              echo
            fi

            if [ -z "${FEATURES}${FIXES}${DOCS}" ]; then
              echo "## Notes"
              echo
              echo "- No feat/fix/doc commits were found in this release range."
            fi
          } > RELEASE_NOTES.md

      - name: Create source archives
        run: |
          mkdir -p dist
          git archive --format=tar.gz --prefix="${{ steps.release.outputs.basename }}/" -o "dist/${{ steps.release.outputs.basename }}.tar.gz" "${{ steps.release.outputs.tag }}"
          git archive --format=zip --prefix="${{ steps.release.outputs.basename }}/" -o "dist/${{ steps.release.outputs.basename }}.zip" "${{ steps.release.outputs.tag }}"

      - name: Create draft GitHub release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.release.outputs.tag }}
          name: Casbin ${{ steps.release.outputs.tag }}
          body_path: RELEASE_NOTES.md
          draft: true
          files: |
            dist/${{ steps.release.outputs.basename }}.tar.gz
            dist/${{ steps.release.outputs.basename }}.zip