main.yml

name: CI

on:
  push:
    branches:
      - main
      - '*_maintenance'
  pull_request:
    branches:
      - '*'
  release:
      types: [published]

jobs:

  build:

    strategy:

      # Don't cancel other jobs in the build matrix if one job fails.
      fail-fast: false

      matrix:

        # Rather than generate all permutations of various settings,
        # we want to explicitly list each of the variants we want to
        # test. We can use `name` to declare the names of our variants,
        # and then use `include` to define their settings.

        name: [
          linux-gcc11,
          macos-arm64,
        ]

        include:

          - name: linux-gcc11
            os: ubuntu-20.04
            publish: true
            containerImage: ghcr.io/gafferhq/build/build:3.0.0
            jobs: 4

          - name: macos-arm64
            os: macos-14
            publish: true
            containerImage:
            jobs: 3

    runs-on: ${{ matrix.os }}

    container: ${{ matrix.containerImage }}

    env:
      DEPENDENCIES_BUILD_DIR: "./build"
    steps:

    - uses: actions/checkout@v4

    - name: Install toolchain (Linux)
      run: |
        # The Docker container configures bash shells such that they enable the
        # software collections we want. If we could set GitHub's
        # `defaults.run.shell` to `bash` then all our build steps would pick up
        # this environment automatically. But we can't do that because it will
        # break future Windows builds, and we can't configure a different shell
        # per platform because GitHub won't allow it. But we can run _this_
        # Linux-only step in bash, and transfer the environment out to be used
        # in later steps.
        echo $PATH > $GITHUB_PATH
        echo LD_LIBRARY_PATH=$LD_LIBRARY_PATH >> $GITHUB_ENV
      shell: bash
      if: runner.os == 'Linux'

    - name: Install toolchain (macOS)
      run: |
        # Choose the earliest Xcode version available on a macos-14 runner.
        sudo xcode-select -s /Applications/Xcode_14.3.1.app/Contents/Developer
        # Install build requirements.
        sudo pip3 install scons==4.6.0 --break-system-packages
        brew install gpatch
        brew install bison
        # Make sure bison is discoverable.
        echo BISON_ROOT=/opt/homebrew/opt/bison >> $GITHUB_ENV
        # Make the location of the macOS platform SDK obvious to CMake.
        # OpenShadingLanguage needs a little extra help finding `cstddef`.
        echo SDKROOT=`xcrun --sdk macosx --show-sdk-path` >> $GITHUB_ENV
        # Remove CommandLineTools so there is no potential for conflict with
        # our selected Xcode version.
        sudo rm -rf /Library/Developer/CommandLineTools
      shell: bash
      if: runner.os == 'macOS'

    - name: 'Install Python Modules'
      run: |
        python --version
        pip install PyJWT==1.7.1 PyGitHub==1.45

    - name: Set Custom Variables
      run: |
        .github/workflows/main/setBuildVars.py
      env:
        GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        DEPENDENCIES_BUILD_VARIANT: ${{ matrix.name }}
      shell: bash

    - name: Build Dependencies
      run: |
        ./build.py --cleanup --jobs ${{ matrix.jobs }} --buildDir ${{ env.DEPENDENCIES_BUILD_DIR }}/${{ env.DEPENDENCIES_BUILD_NAME }} --package ${{ env.DEPENDENCIES_BUILD_NAME }}.${{ env.PACKAGE_EXTENSION }}
      env:
        PYTHONUTF8: 1

    - uses: actions/upload-artifact@v4
      with:
        name: ${{ env.DEPENDENCIES_BUILD_NAME }}
        path: ${{ env.DEPENDENCIES_BUILD_NAME }}.${{ env.PACKAGE_EXTENSION }}
        # Using compression-level 0 avoids compressing our already compressed
        # package and results in a significantly faster upload.
        compression-level: 0
      if: matrix.publish

    - name: Publish Release
      run: |
        python ./.github/workflows/main/publishRelease.py --archive ${{ env.DEPENDENCIES_BUILD_NAME }}.${{ env.PACKAGE_EXTENSION }} --repo ${{ github.repository }} --releaseId ${{ env.DEPENDENCIES_GITHUB_RELEASEID }}
      if: matrix.publish && env.DEPENDENCIES_GITHUB_RELEASEID != ''
      env:
        GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}