name: Run Psalm

on: 
  push:
    branches: 
      - master
  pull_request:
    branches: 
      - master

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2

    - name: Install dependencies
      run: export COMPOSER_ROOT_VERSION=dev-master && composer install --prefer-dist --no-progress --no-suggest
      
    - name: Run Psalm
      run: vendor/bin/psalm --threads=2 --shepherd