name: 🐧 Linux Builds
on:
  workflow_call:

# Global Settings
env:
  # Used for the cache key. Add version suffix to force clean build.
  GODOT_BASE_BRANCH: '4.1'
  SCONSFLAGS: verbose=yes warnings=extra werror=yes module_text_server_fb_enabled=yes
  DOTNET_NOLOGO: true
  DOTNET_CLI_TELEMETRY_OPTOUT: true

concurrency:
  group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-linux
  cancel-in-progress: true

jobs:
  build-linux:
    runs-on: "ubuntu-20.04"
    name: ${{ matrix.name }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: Editor w/ Mono (target=editor)
            cache-name: linux-editor-mono
            target: editor
            sconsflags: module_mono_enabled=yes
            bin: "./bin/godot.linuxbsd.editor.x86_64.mono"
            build-mono: true
            tests: false # Disabled due freeze caused by mix Mono build and CI
            doc-test: true
            proj-conv: true
            api-compat: true
            artifact: true

          - name: Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)
            cache-name: linux-editor-double-sanitizers
            target: editor
            # Debug symbols disabled as they're huge on this build and we hit the 14 GB limit for runners.
            sconsflags: dev_build=yes scu_build=yes debug_symbols=no precision=double use_asan=yes use_ubsan=yes linker=gold
            bin: "./bin/godot.linuxbsd.editor.dev.double.x86_64.san"
            build-mono: false
            tests: true
            proj-test: true
            # Generate an API dump for godot-cpp tests.
            api-dump: true
            # Skip 2GiB artifact speeding up action.
            artifact: false

          - name: Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)
            cache-name: linux-editor-llvm-sanitizers
            target: editor
            sconsflags: dev_build=yes use_asan=yes use_ubsan=yes use_llvm=yes linker=lld
            bin: "./bin/godot.linuxbsd.editor.dev.x86_64.llvm.san"
            build-mono: false
            tests: true
            # Skip 2GiB artifact speeding up action.
            artifact: false

          - name: Template w/ Mono (target=template_release)
            cache-name: linux-template-mono
            target: template_release
            sconsflags: module_mono_enabled=yes
            build-mono: false
            tests: false
            artifact: true

          - name: Minimal template (target=template_release, everything disabled)
            cache-name: linux-template-minimal
            target: template_release
            sconsflags: modules_enabled_by_default=no disable_3d=yes disable_advanced_gui=yes deprecated=no minizip=no
            tests: false
            artifact: true

    steps:
      - uses: actions/checkout@v4

      # Need newer mesa for lavapipe to work properly.
      - name: Linux dependencies for tests
        if: ${{ matrix.proj-test }}
        run: |
          sudo rm -f /etc/apt/sources.list.d/microsoft-prod.list
          sudo add-apt-repository ppa:kisak/kisak-mesa
          sudo apt-get install -qq mesa-vulkan-drivers

      - name: Free disk space on runner
        run: |
          echo "Disk usage before:" && df -h
          sudo rm -rf /usr/local/lib/android
          echo "Disk usage after:" && df -h

      - name: Setup Godot build cache
        uses: ./.github/actions/godot-cache
        with:
          cache-name: ${{ matrix.cache-name }}
        continue-on-error: true

      - name: Setup python and scons
        uses: ./.github/actions/godot-deps

      - name: Set up .NET Sdk
        uses: actions/setup-dotnet@v3
        if: ${{ matrix.build-mono }}
        with:
          dotnet-version: '6.0.x'

      - name: Setup GCC problem matcher
        uses: ammaraskar/gcc-problem-matcher@master

      - name: Compilation
        uses: ./.github/actions/godot-build
        with:
          sconsflags: ${{ env.SCONSFLAGS }} ${{ matrix.sconsflags }}
          platform: linuxbsd
          target: ${{ matrix.target }}
          tests: ${{ matrix.tests }}

      - name: Generate C# glue
        if: ${{ matrix.build-mono }}
        run: |
          ${{ matrix.bin }} --headless --generate-mono-glue ./modules/mono/glue

      - name: Build .NET solutions
        if: ${{ matrix.build-mono }}
        run: |
          ./modules/mono/build_scripts/build_assemblies.py --godot-output-dir=./bin --godot-platform=linuxbsd

      - name: Prepare artifact
        if: ${{ matrix.artifact }}
        run: |
          strip bin/godot.*
          chmod +x bin/godot.*

      - name: Upload artifact
        uses: ./.github/actions/upload-artifact
        if: ${{ matrix.artifact }}
        with:
          name: ${{ matrix.cache-name }}

      - name: Dump Godot API
        uses: ./.github/actions/godot-api-dump
        if: ${{ matrix.api-dump }}
        with:
          bin: ${{ matrix.bin }}

      # Execute unit tests for the editor
      - name: Unit tests
        if: ${{ matrix.tests }}
        run: |
          ${{ matrix.bin }} --version
          ${{ matrix.bin }} --help
          ${{ matrix.bin }} --test --headless

      # Check class reference
      - name: Check for class reference updates
        if: ${{ matrix.doc-test }}
        run: |
          echo "Running --doctool to see if this changes the public API without updating the documentation."
          echo -e "If a diff is shown, it means that your code/doc changes are incomplete and you should update the class reference with --doctool.\n\n"
          ${{ matrix.bin }} --doctool --headless 2>&1 > /dev/null || true
          git diff --color --exit-code && ! git ls-files --others --exclude-standard | sed -e 's/^/New doc file missing in PR: /' | grep 'xml$'

      # Check API backwards compatibility
      - name: Check for GDExtension compatibility
        if: ${{ matrix.api-compat }}
        run: |
          ./misc/scripts/validate_extension_api.sh "${{ matrix.bin }}"

      # Download and run the test project
      - name: Test Godot project
        uses: ./.github/actions/godot-project-test
        if: ${{ matrix.proj-test }}
        with:
          bin: ${{ matrix.bin }}

      # Test the project converter
      - name: Test project converter
        uses: ./.github/actions/godot-converter-test
        if: ${{ matrix.proj-conv }}
        with:
          bin: ${{ matrix.bin }}