name: Static analysis

on:
  pull_request: ~

defaults:
  run:
    shell: bash

jobs:
  psalm:
    name: Psalm
    runs-on: Ubuntu-20.04

    steps:
      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.0'
          extensions: "json,memcached,mongodb,redis,xsl,ldap,dom"
          ini-values: "memory_limit=-1"
          coverage: none

      - name: Checkout target branch
        uses: actions/checkout@v2
        with:
          ref: ${{ github.base_ref }}

      - name: Checkout PR
        uses: actions/checkout@v2

      - name: Install dependencies
        run: |
          COMPOSER_HOME="$(composer config home)"
          ([ -d "$COMPOSER_HOME" ] || mkdir "$COMPOSER_HOME") && cp .github/composer-config.json "$COMPOSER_HOME/config.json"
          export COMPOSER_ROOT_VERSION=$(grep ' VERSION = ' src/Symfony/Component/HttpKernel/Kernel.php | grep -P -o '[0-9]+\.[0-9]+').x-dev
          composer remove --no-update --no-interaction symfony/phpunit-bridge
          composer require --no-update psalm/phar phpunit/phpunit:^9.5 php-http/discovery psr/event-dispatcher

          echo "::group::composer update"
          composer update --no-progress --ansi
          git checkout composer.json
          echo "::endgroup::"

          ./vendor/bin/psalm.phar --version

      - name: Generate Psalm baseline
        run: |
          git checkout -m ${{ github.base_ref }}
          ./vendor/bin/psalm.phar --set-baseline=.github/psalm/psalm.baseline.xml --no-progress
          git checkout -m FETCH_HEAD

      - name: Psalm
        run: |
          ./vendor/bin/psalm.phar --output-format=github --no-progress