check-generated-lexer.yml

name: Check Generated AT Parser Lexer

on:
  pull_request:
    paths:
      - 'lib/at_parser/at_match.re'

jobs:
  compliance_job:
    runs-on: ubuntu-latest
    name: Check Generated AT Parser Lexer
    steps:
    - name: Update PATH for west
      run: |
        echo "$HOME/.local/bin" >> $GITHUB_PATH

    - name: Checkout sources
      uses: nrfconnect/action-checkout-west-update@main
      with:
        git-fetch-depth: 0
        git-ref: ${{ github.event.pull_request.head.sha }}

    - name: Install dependencies
      run: |
        sudo apt-get install re2c

    - name: Generate lexer
      run: |
        re2c at_match.re -o at_match.c -W --no-debug-info --tags

    - name: Compare lexers
      run: |
        if diff -q at_match.c ncs/nrf/lib/at_parser/generated/at_match.c > /dev/null; then
          echo "Lexer is up to date."
        else
          echo "Lexer is not up to date. Please re-generate the lexer and update the PR."
          exit 1
        fi