name: Build environment setup
description: Configure build env for Yosys builds

inputs:
  runs-on:
    required: true
    type: string
  get-iverilog:
    description: 'Install iverilog'
    default: false
    required: false
    type: boolean

runs:
  using: composite
  steps:
    - name: Install Linux Dependencies
      if: runner.os == 'Linux'
      uses: awalsh128/cache-apt-pkgs-action@v1.6.0
      with:
        packages: gperf build-essential bison flex libfl-dev libreadline-dev gawk tcl-dev libffi-dev git graphviz xdot pkg-config python3 libboost-system-dev libboost-python-dev libboost-filesystem-dev zlib1g-dev libbz2-dev libgtest-dev
        version: ${{ inputs.runs-on }}-buildys

    - name: Install macOS Dependencies
      if: runner.os == 'macOS'
      shell: bash
      run: |
        brew bundle

    - name: Linux runtime environment
      if: runner.os == 'Linux'
      shell: bash
      run: |
        echo "${{ github.workspace }}/.local/bin" >> $GITHUB_PATH
        echo "procs=$(nproc)" >> $GITHUB_ENV

    - name: macOS runtime environment
      if: runner.os == 'macOS'
      shell: bash
      run: |
        echo "${{ github.workspace }}/.local/bin" >> $GITHUB_PATH
        echo "$(brew --prefix llvm@20)/bin" >> $GITHUB_PATH
        echo "$(brew --prefix bison)/bin" >> $GITHUB_PATH
        echo "$(brew --prefix flex)/bin" >> $GITHUB_PATH
        echo "procs=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV

    - name: Setup iverilog
      if: inputs.get-iverilog
      uses: ./.github/actions/setup-iverilog
      with:
        runs-on: ${{ inputs.runs-on }}