source-snapshot.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 Snapshot

on:
  push:
    branches:
      - master
  workflow_dispatch:

permissions:
  contents: write

jobs:
  build-source-snapshot:
    if: ${{ github.repository == 'apache/casbin' }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Compute snapshot metadata
        id: snapshot
        run: |
          LATEST_RELEASE_TAG="$(
            git tag --list 'v*' |
              grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' |
              sort -V |
              tail -n 1
          )"

          if [ -z "${LATEST_RELEASE_TAG}" ]; then
            BASE_VERSION="0.1.0"
          else
            RELEASE_VERSION="${LATEST_RELEASE_TAG#v}"
            IFS='.' read -r MAJOR MINOR PATCH <<< "${RELEASE_VERSION}"
            BASE_VERSION="${MAJOR}.$((MINOR + 1)).0"
          fi

          ESCAPED_BASE_VERSION="${BASE_VERSION//./\\.}"
          LAST_SNAPSHOT_NUMBER="$(
            git tag --list "v${BASE_VERSION}-snapshot.*" |
              sed -nE "s/^v${ESCAPED_BASE_VERSION}-snapshot\\.([0-9]+)$/\\1/p" |
              sort -n |
              tail -n 1
          )"
          LAST_SNAPSHOT_NUMBER="${LAST_SNAPSHOT_NUMBER:-0}"
          NEXT_SNAPSHOT_NUMBER="$((LAST_SNAPSHOT_NUMBER + 1))"
          SNAPSHOT_VERSION="v${BASE_VERSION}-snapshot.${NEXT_SNAPSHOT_NUMBER}"
          BASENAME="casbin-${SNAPSHOT_VERSION#v}-src"

          if [ "${LAST_SNAPSHOT_NUMBER}" -gt 0 ]; then
            CHANGELOG_START_TAG="v${BASE_VERSION}-snapshot.${LAST_SNAPSHOT_NUMBER}"
          else
            CHANGELOG_START_TAG="${LATEST_RELEASE_TAG}"
          fi

          echo "latest_release_tag=${LATEST_RELEASE_TAG}" >> "${GITHUB_OUTPUT}"
          echo "changelog_start_tag=${CHANGELOG_START_TAG}" >> "${GITHUB_OUTPUT}"
          echo "base_version=${BASE_VERSION}" >> "${GITHUB_OUTPUT}"
          echo "number=${NEXT_SNAPSHOT_NUMBER}" >> "${GITHUB_OUTPUT}"
          echo "version=${SNAPSHOT_VERSION}" >> "${GITHUB_OUTPUT}"
          echo "basename=${BASENAME}" >> "${GITHUB_OUTPUT}"

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

          if [ -n "${PREVIOUS_TAG}" ]; then
            RANGE="${PREVIOUS_TAG}..HEAD"
          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
            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 snapshot range."
            fi
          } > SNAPSHOT_RELEASE_NOTES.md

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

      - name: Create snapshot GitHub release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.snapshot.outputs.version }}
          target_commitish: ${{ github.sha }}
          name: ${{ steps.snapshot.outputs.version }}
          body_path: SNAPSHOT_RELEASE_NOTES.md
          draft: false
          prerelease: false
          files: |
            dist/${{ steps.snapshot.outputs.basename }}.tar.gz
            dist/${{ steps.snapshot.outputs.basename }}.zip