release.yml

name: Release

# Build all three artifacts in parallel and publish a draft release.
# Triggers:
#   * pushing a tag matching v*
#   * manual run (workflow_dispatch) with a `tag` input — the tag is created
#     from the current commit and then used exactly as a pushed tag would be.
on:
  push:
    tags:
      - "v*"
  workflow_dispatch:
    inputs:
      tag:
        description: "Version tag to create and release (e.g. v0.1.0)"
        required: true
        type: string

permissions:
  contents: write

jobs:
  # ── Resolve (and on manual dispatch, create) the release tag ──────────────
  prepare:
    runs-on: ubuntu-24.04
    outputs:
      tag: ${{ steps.tag.outputs.tag }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - id: tag
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            TAG="${{ inputs.tag }}"
            git config user.name  "github-actions[bot]"
            git config user.email "github-actions[bot]@users.noreply.github.com"
            git tag "$TAG"
            git push origin "$TAG"
          else
            TAG="${{ github.ref_name }}"
          fi
          echo "tag=$TAG" >> "$GITHUB_OUTPUT"

  # ── Linux + Windows build concurrently ────────────────────────────────────
  build:
    needs: prepare
    runs-on: ubuntu-24.04
    strategy:
      fail-fast: false
      matrix:
        target: [linux, windows]
    steps:
      - uses: actions/checkout@v4

      # Only the deps each target actually needs (smaller = faster).
      - name: Install dependencies (Linux build)
        if: matrix.target == 'linux'
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends \
            pkg-config libudev-dev libxkbcommon-dev libxkbcommon-x11-dev \
            libwayland-dev libxcb1-dev libfontconfig1-dev

      - name: Install dependencies (Windows build)
        if: matrix.target == 'windows'
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends mingw-w64 nsis

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target == 'windows' && 'x86_64-pc-windows-gnu' || '' }}

      - name: Cache cargo
        uses: Swatinem/rust-cache@v2
        with:
          key: ${{ matrix.target }}
          cache-all-crates: true

      - name: Build (Linux)
        if: matrix.target == 'linux'
        run: |
          cargo build --release
          mkdir -p dist
          cp target/release/slidr dist/Slidr-linux-x86_64
          # Ships alongside the binary: without this rule the serial device is
          # root-only on most distributions, and someone who downloaded the
          # binary (rather than cloning) has no way to get at the file.
          cp packaging/99-slidr.rules dist/99-slidr.rules

      - name: Build (Windows + interactive installer)
        if: matrix.target == 'windows'
        run: |
          VERSION="${{ needs.prepare.outputs.tag }}"; VERSION="${VERSION#v}"
          cargo build --release --target x86_64-pc-windows-gnu
          cp target/x86_64-pc-windows-gnu/release/slidr.exe installer/slidr.exe
          cp assets/logo.ico installer/logo.ico
          (cd installer && makensis -DVERSION="$VERSION" slidr.nsi)
          mkdir -p dist
          cp target/x86_64-pc-windows-gnu/release/slidr.exe dist/Slidr-windows-portable.exe
          cp installer/Slidr-windows-setup.exe              dist/Slidr-windows-setup.exe

      - uses: actions/upload-artifact@v4
        with:
          name: dist-${{ matrix.target }}
          path: dist/*
          retention-days: 1

  # ── Collect artifacts and draft the release ───────────────────────────────
  release:
    needs: [prepare, build]
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: dist
          merge-multiple: true
      - run: ls -lh dist
      - name: Create draft release
        uses: softprops/action-gh-release@v2
        with:
          draft: true
          name: "Slidr ${{ needs.prepare.outputs.tag }}"
          tag_name: ${{ needs.prepare.outputs.tag }}
          generate_release_notes: true
          files: dist/*