name: Create release artifacts
on:
  push:
    tags:
      - v[0-9]*

env:
  CLICOLOR_FORCE: 1 # Tells CMake to have colored output.
  CMAKE_COLOR_DIAGNOSTICS: ON # Tells CMake-generated build systems to have colored output.
  # Approximate number of CPU cores in GitHub's runners as of 2026-03-18:
  # https://docs.github.com/en/actions/reference/runners/github-hosted-runners#standard-github-hosted-runners-for-public-repositories
  CMAKE_BUILD_PARALLEL_LEVEL: 4 # `cmake --build` now implies `--parallel 4`.
  CMAKE_INSTALL_PARALLEL_LEVEL: 4 # `cmake --install` now implies `--parallel 4`.
  CMAKE_BUILD_TYPE: Release # `cmake -S` now implies `-DCMAKE_BUILD_TYPE=Release`.
  CMAKE_CONFIG_TYPE: Release # `cmake --build` now implies `--config Release`.

  # We instruct CMake to download and build third-party projects in the same place as in `testing.yml`
  # to prevent divergence between testing and release workflows.
  DEPS_ROOT_DIR: ~/_deps

jobs:
  windows:
    runs-on: windows-2022
    strategy:
      matrix:
        bits: [32, 64]
      fail-fast: false
    steps:
      - name: Checkout repo
        uses: actions/checkout@v6
      - name: Install deps
        run: |
          bash .github/scripts/install_deps.sh windows
      - name: Build Windows binaries
        run: |
          cmake -S . -B build --preset msvc${{ matrix.bits }} -DFETCHCONTENT_BASE_DIR="${{ env.DEPS_ROOT_DIR }}"
          cmake --build build --config Release
      - name: Package binaries
        working-directory: build
        run: |
          cpack -DCPACK_PACKAGE_FILE_NAME=rgbds-win${{ matrix.bits }} -G ZIP -C Release --verbose
      - name: Upload Windows binaries
        uses: actions/upload-artifact@v7
        with:
          name: win${{ matrix.bits }}
          path: build/rgbds-win${{ matrix.bits }}.zip
          if-no-files-found: error

  macos:
    runs-on: macos-14
    steps:
      - name: Checkout repo
        uses: actions/checkout@v6
      - name: Install deps
        run: |
          ./.github/scripts/install_deps.sh macos
      - name: Build binaries
        run: |
          cmake -S . -B build --preset macos-static -DFETCHCONTENT_BASE_DIR="${{ env.DEPS_ROOT_DIR }}"
          cmake --build build
          strip rgb{asm,link,fix,gfx}
      - name: Package binaries
        run: |
          zip --junk-paths rgbds-macos.zip rgb{asm,link,fix,gfx} man/* .github/scripts/install.sh
      - name: Upload macOS binaries
        uses: actions/upload-artifact@v7
        with:
          name: macos
          path: rgbds-macos.zip
          if-no-files-found: error

  linux:
    runs-on: ubuntu-22.04 # Oldest supported, for best glibc compatibility.
    steps:
      - name: Checkout repo
        uses: actions/checkout@v6
      - name: Install deps
        run: |
          ./.github/scripts/install_deps.sh ubuntu-22.04
      - name: Build binaries
        run: |
          make -kj WARNFLAGS="-Wall -Wextra -pedantic -static" PKG_CONFIG="pkg-config --static" Q=
          strip rgb{asm,link,fix,gfx}
      - name: Package binaries
        run: |
          tar caf rgbds-linux-x86_64.tar.xz --transform='s#.*/##' rgb{asm,link,fix,gfx} man/* .github/scripts/install.sh
      - name: Upload Linux binaries
        uses: actions/upload-artifact@v7
        with:
          name: linux
          path: rgbds-linux-x86_64.tar.xz
          if-no-files-found: error

  release:
    runs-on: ubuntu-slim
    needs: [windows, macos, linux]
    permissions:
      contents: write
    steps:
      - name: Checkout repo
        uses: actions/checkout@v6
      - name: Package sources
        run: |
          make dist Q=
      - name: Download all binary packages
        uses: actions/download-artifact@v8
      - name: Draft the release
        run: |
          .github/scripts/draft-release.sh "${ref#refs/tags/}"
        env:
          ref: ${{ github.ref_name }}
          GH_TOKEN: ${{ github.token }} # Required by the `gh` command.