name: 'Renderdiff Generate'
description: 'Sets up prerequisites and runs the generate script for renderdiff'
runs:
  using: "composite"
  steps:
    - uses: ./.github/actions/mac-prereq
    - uses: ./.github/actions/get-gltf-assets
    - uses: ./.github/actions/get-mesa
    - uses: ./.github/actions/get-vulkan-sdk
    - name: Prerequisites
      if: runner.os == 'macOS'
      run: |
        # Must have at least clang-16 for a webgpu/dawn build.
        sudo xcode-select -s /Applications/Xcode_16.2.app/Contents/Developer
        # this enforces the gltf_viewer build to use apple clang as oppose the brew clang used for get-mesa
        echo "CC=/usr/bin/clang" >> $GITHUB_ENV
        echo "CXX=/usr/bin/clang++" >> $GITHUB_ENV
        echo "/usr/local/bin" >> $GITHUB_PATH
        echo "/usr/bin" >> $GITHUB_PATH
      shell: bash
    - name: Generate images
      run: |
        TEST_DIR=test/renderdiff
        source ${TEST_DIR}/src/preamble.sh
        set -eux
        bash ${TEST_DIR}/generate.sh
        set +eux
      shell: bash
    - name: Build diffimg tool
      run: |
        ./build.sh release diffimg
      shell: bash