name: Build environment setup
description: Configure build env for Yosys builds
runs:
  using: composite
  steps:
    - name: Install Linux Dependencies
      if: runner.os == 'Linux'
      shell: bash
      run: |
        sudo apt-get update
        sudo apt-get install gperf build-essential bison flex 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

    - name: Install macOS Dependencies
      if: runner.os == 'macOS'
      shell: bash
      run: |
        HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew update
        HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew install bison flex gawk libffi pkg-config bash autoconf llvm lld || true

    - 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)/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
