circuit-build.yml

name: Circuit

on:
  push:
    branches: [ v1 ]
  pull_request:
    branches: [ v1 ]

concurrency: 
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        node-version: [14, 16]

    steps:
      - uses: actions/checkout@v3

      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v3
        with:
          node-version: ${{ matrix.node-version }}
          cache: 'npm'

      - name: Update npm to latest version
        run: npm install --global npm@latest

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install --yes \
            build-essential \
            libgmp-dev \
            libsodium-dev \
            nasm \
            nlohmann-json3-dev

      - name: Build
        run: |
          npm install
          npm run bootstrap
          npm run build

      # Pinning to v2.0.7 dueto circom-helper fails when circom prints warnings; the new feature of v2.0.8
      - name: Download circom Binary v2.0.7
        run: |
          mkdir -p /home/runner/work/maci/.local/bin
          wget -qO /home/runner/work/maci/.local/bin/circom https://github.com/iden3/circom/releases/download/v2.0.7/circom-linux-amd64
          chmod +x /home/runner/work/maci/.local/bin/circom

      - name: Run circom-helper
        run: |
          
          # Prevent error `Error: ENOENT: no such file or directory, scandir '/home/ubuntu/maci/circuits/circom/prod/'`
          # TODO: Add `./circom/prod/` to `circuitDirs` of `circuits/circomHelperConfig.json` when
          #      `circuits/scripts/buildCustomSnarks.sh` script executed
          mkdir circom/prod
          
          nohup npm run circom-helper &

          # Wait until circom-helper listen to port 9001
          while [[ "$(lsof -i :9001)" -eq '0' ]]; do sleep 1; done
        working-directory: circuits
      
      - name: Test
        run: npm run test
        working-directory: circuits