release-tag.yml

# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/release-tag.md
name: Release

on:
  push:
    tags:
      - "v?[0-9]+.[0-9]+.[0-9]+*"

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    env:
      # See: https://github.com/fsaintjacques/semver-tool/releases
      SEMVER_TOOL_VERSION: 3.2.0

    steps:
      - name: Set environment variables
        run: |
          # See: https://docs.github.com/actions/writing-workflows/choosing-what-your-workflow-does/workflow-commands-for-github-actions#setting-an-environment-variable
          echo "CHANGELOG_PATH=${{ runner.temp }}/CHANGELOG.md" >> "$GITHUB_ENV"
          echo "SEMVER_TOOL_PATH=${{ runner.temp }}/semver" >> "$GITHUB_ENV"

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Create changelog
        uses: arduino/create-changelog@v1
        with:
          tag-regex: '^v?[0-9]+\.[0-9]+\.[0-9]+.*$'
          filter-regex: '^\[(skip|changelog)[ ,-](skip|changelog)\].*'
          case-insensitive-regex: true
          changelog-file-path: ${{ env.CHANGELOG_PATH }}

      - name: Download semver tool
        id: download-semver-tool
        uses: carlosperate/download-file-action@v2
        with:
          file-url: https://github.com/fsaintjacques/semver-tool/archive/${{ env.SEMVER_TOOL_VERSION }}.zip
          location: ${{ runner.temp }}/semver-tool

      - name: Install semver tool
        run: |
          unzip \
            -p \
            "${{ steps.download-semver-tool.outputs.file-path }}" \
            semver-tool-${{ env.SEMVER_TOOL_VERSION }}/src/semver > \
              "${{ env.SEMVER_TOOL_PATH }}"
          chmod +x "${{ env.SEMVER_TOOL_PATH }}"

      - name: Identify Prerelease
        id: prerelease
        run: |
          if [[ \
            "$(
              "${{ env.SEMVER_TOOL_PATH }}" get prerel \
                "${GITHUB_REF/refs\/tags\//}"
            )" != \
            "" \
          ]]; then
            echo "IS_PRE=true" >> $GITHUB_OUTPUT
          fi

      - name: Create Github release
        uses: ncipollo/release-action@v1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          bodyFile: ${{ env.CHANGELOG_PATH }}
          draft: false
          prerelease: ${{ steps.prerelease.outputs.IS_PRE }}