name: CI - PHP lint
description: PHP syntax check (Gitea port of the lint-php job in the reusable ci.yml).
inputs:
  php:
    required: true
runs:
  using: composite
  steps:
    - name: Use preinstalled PHP ${{ inputs.php }} (peptide-php image)
      id: pre
      shell: bash
      env:
        V: ${{ inputs.php }}
      run: |
        if command -v "php$V" >/dev/null 2>&1; then
          update-alternatives --set php "/usr/bin/php$V" >/dev/null 2>&1 || ln -sf "/usr/bin/php$V" /usr/local/bin/php
          php -v | head -1; echo "hit=true" >> "$GITHUB_OUTPUT"
        else
          echo "hit=false" >> "$GITHUB_OUTPUT"
        fi
    - name: Setup PHP ${{ inputs.php }} (fallback when not preinstalled)
      if: ${{ steps.pre.outputs.hit != 'true' }}
      uses: shivammathur/setup-php@v2
      with:
        php-version: ${{ inputs.php }}
        coverage: none
    - name: Syntax check all PHP files
      shell: bash
      run: |
        set -e
        find . -name '*.php' \
          -not -path './vendor/*' \
          -not -path './node_modules/*' \
          -not -path './.git/*' \
          -not -path './.github/*' \
          -not -path './.gitea/*' \
          -print0 | xargs -0 -r -n1 -P4 php -l > /dev/null