release.yml

name: Release

on:
  push:
    tags:
      - "v*.*.*"

permissions:
  contents: write

jobs:
  # Extract version from tag and update Cargo.toml, commit back to main
  version:
    name: Bump version
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.tag.outputs.version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          ref: main
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract version from tag
        id: tag
        run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - name: Update Cargo.toml version
        run: |
          sed -i 's/^version = ".*"/version = "${{ steps.tag.outputs.version }}"/' Cargo.toml

      - name: Update Cargo.lock
        uses: dtolnay/rust-toolchain@stable

      - run: cargo update --workspace

      - name: Commit version bump
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add Cargo.toml Cargo.lock
          git commit -m "chore: bump version to ${{ steps.tag.outputs.version }}"
          git push origin main

  build:
    name: Build — ${{ matrix.name }}
    needs: version
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: macOS
            os: macos-latest
            target: aarch64-apple-darwin
            artifact: gregory
            archive: gregory-macos.tar.gz

          - name: Linux
            os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
            artifact: gregory
            archive: gregory-linux.tar.gz

          - name: Windows
            os: windows-latest
            target: x86_64-pc-windows-msvc
            artifact: gregory.exe
            archive: gregory-windows.zip

    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          ref: main

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      # Linux — ALSA and other audio/GUI deps
      - name: Install Linux dependencies
        if: matrix.os == 'ubuntu-latest'
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            libasound2-dev \
            libudev-dev \
            pkg-config \
            libxkbcommon-dev \
            libwayland-dev \
            libssl-dev

      - name: Cache cargo registry
        uses: actions/cache@v5
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ matrix.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: ${{ matrix.os }}-cargo-

      - name: Build
        run: cargo build --release --bin gregory --target ${{ matrix.target }}

      # macOS / Linux — tar.gz
      - name: Package (Unix)
        if: matrix.os != 'windows-latest'
        run: |
          cp target/${{ matrix.target }}/release/${{ matrix.artifact }} .
          tar czf ${{ matrix.archive }} ${{ matrix.artifact }} README.md LICENSE-MIT LICENSE-APACHE
        shell: bash

      # Windows — zip
      - name: Package (Windows)
        if: matrix.os == 'windows-latest'
        run: |
          Copy-Item "target\${{ matrix.target }}\release\${{ matrix.artifact }}" .
          Compress-Archive -Path ${{ matrix.artifact }},README.md -DestinationPath ${{ matrix.archive }}
        shell: pwsh

      - name: Upload artifact
        uses: actions/upload-artifact@v7
        with:
          name: ${{ matrix.archive }}
          path: ${{ matrix.archive }}

  release:
    name: Publish release
    needs: [version, build]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          ref: main
          fetch-depth: 0

      - name: Download all artifacts
        uses: actions/download-artifact@v8
        with:
          merge-multiple: true

      - name: Generate changelog
        id: changelog
        run: |
          PREV_TAG=$(git tag --sort=-version:refname | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' | sed -n '2p')
          if [ -z "$PREV_TAG" ]; then
            LOG=$(git log --pretty=format:"- %s" HEAD)
          else
            LOG=$(git log --pretty=format:"- %s" "${PREV_TAG}..HEAD")
          fi
          {
            echo "changelog<<EOF"
            echo "$LOG"
            echo "EOF"
          } >> "$GITHUB_OUTPUT"

      - name: Create GitHub release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ github.ref_name }}
          name: Gregory ${{ github.ref_name }}
          body: |
            ## What's changed
            ${{ steps.changelog.outputs.changelog }}
          files: |
            gregory-macos.tar.gz
            gregory-linux.tar.gz
            gregory-windows.zip
          draft: false
          prerelease: false