release.yml

name: GitHub
on:
  pull_request:
    branches: [main]
#on:
#  push:
#    tags: ["*"]

jobs:
  release:
    permissions: write-all
    runs-on: "ubuntu-latest"
    name: Create a Release

    steps:
      - uses: actions/checkout@v4
      - name: Extract the change log from CHANGES.(rst|md)
        id: changelog
        run: |
          # get the lines where the changelog for the last release starts and finishes
          first_line=$(grep -n "\-\-\-\-" CHANGES.rst | cut -d":" -f1 |head -n1)
          last_line=$(grep -n "\-\-\-\-" CHANGES.rst | cut -d":" -f1 |head -n2 | tail -n1)
          # do some math to adjust the line numbers
          first=$((${first_line}+1))
          last=$((${last_line}-2))
          end=$((${last_line}-1))
          # extract the changelog
          output=$(sed -n "${first},${last}p;${end}q" CHANGES.rst)

          # output="${output//'%'/'%25'}"
          # output="${output//$'\n'/'%0A'}"
          # output="${output//$'\r'/'%0D'}"
          # output="${output//$"'"/"\'"}"

          # GITHUB_OUTPUT needs a delimiter for multi line strings
          delimiter="$(openssl rand -hex 8)"
          echo "log<<${delimiter}" >> "${GITHUB_OUTPUT}"
          echo "${output}" >> "${GITHUB_OUTPUT}"
          echo "${delimiter}" >> "${GITHUB_OUTPUT}"
#      - name: debug
#        run: echo '{"tag_name":"${{ github.ref_name }}","name":"${{ github.ref_name }}","body":"${{ steps.changelog.outputs.log }}"}'
      - name: Create a new GitHub release
        run: |
          curl -L \
          -X POST \
          --header "Accept: application/vnd.github+json" \
          --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' \
          https://api.github.com/repos/${{ github.repository }}/releases \
          -d '{"tag_name":"${{ github.ref_name }}","name":"${{ github.ref_name }}","body":${{ toJson(steps.changelog.outputs.log) }}}'