release.yml

name: Release

on:
  push:
    paths:
      - 'Cargo.toml'
    branches:
      - main
  workflow_dispatch:
    inputs:
      force:
        description: Force release regardless of version change
        type: boolean
        default: false

jobs:
  check-version:
    runs-on: ubuntu-latest
    outputs:
      version_changed: ${{ steps.check.outputs.changed }}
      version: ${{ steps.extract.outputs.version }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Check if version changed
        id: check
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ] && [ "${{ inputs.force }}" = "true" ]; then
            echo "changed=true" >> $GITHUB_OUTPUT
          elif git rev-parse HEAD^ >/dev/null 2>&1 && git diff HEAD^ HEAD -- Cargo.toml | grep -q '^[+-]version = '; then
            echo "changed=true" >> $GITHUB_OUTPUT
          else
            echo "changed=false" >> $GITHUB_OUTPUT
          fi

      - name: Extract version
        id: extract
        if: steps.check.outputs.changed == 'true'
        run: |
          VERSION=$(grep '^version = ' Cargo.toml | head -1 | sed 's/version = "\(.*\)"/\1/')
          echo "version=$VERSION" >> $GITHUB_OUTPUT

  build:
    needs: check-version
    if: needs.check-version.outputs.version_changed == 'true'
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            target: x86_64-unknown-linux-musl
            artifact_name: pik
            asset_name: pik-linux-x86_64
          - os: macos-latest
            target: x86_64-apple-darwin
            artifact_name: pik
            asset_name: pik-macos-x86_64
          - os: macos-latest
            target: aarch64-apple-darwin
            artifact_name: pik
            asset_name: pik-macos-aarch64
          - os: windows-latest
            target: x86_64-pc-windows-msvc
            artifact_name: pik.exe
            asset_name: pik-windows-x86_64.exe
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}
      - uses: Swatinem/rust-cache@v2

      - name: Install musl-tools
        if: matrix.os == 'ubuntu-latest'
        run: sudo apt-get install -y musl-tools

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

      - name: Strip binary
        if: matrix.os != 'windows-latest'
        run: strip target/${{ matrix.target }}/release/${{ matrix.artifact_name }}

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.asset_name }}
          path: target/${{ matrix.target }}/release/${{ matrix.artifact_name }}

  release:
    needs: [check-version, build]
    if: needs.check-version.outputs.version_changed == 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4

      - name: Download artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts

      - name: Create release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -e
          VERSION="${{ needs.check-version.outputs.version }}"
          if [ -z "$VERSION" ]; then
            echo "No version resolved — aborting"
            exit 1
          fi

          if gh release view "v$VERSION" &>/dev/null; then
            echo "Release v$VERSION already exists — skipping"
            exit 0
          fi

          gh release create "v$VERSION" --title "v$VERSION" --generate-notes

          shopt -s nullglob
          ASSETS=(artifacts/*/*)
          echo "Found ${#ASSETS[@]} artifacts:"
          for f in "${ASSETS[@]}"; do
            echo "  - $f"
          done

          if [ "${#ASSETS[@]}" -eq 0 ]; then
            echo "No artifacts found to upload — failing"
            exit 1
          fi

          FAILED=0
          for f in "${ASSETS[@]}"; do
            dir=$(basename "$(dirname "$f")")
            echo "Uploading $f as $dir..."
            if ! gh release upload "v$VERSION" "$f#$dir" --clobber; then
              echo "Failed to upload $f"
              FAILED=1
            fi
          done

          if [ "$FAILED" -eq 1 ]; then
            echo "One or more uploads failed"
            exit 1
          fi