check_pr.yml

name: Check PR

# Controls when the workflow will run
on:
  pull_request:
    branches:
      - main
    types:
      - opened
      - synchronize
      - reopened

permissions:
  pull-requests: write

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:

  labeler:
    name: Add label to PR based on the paths of files being changed
    runs-on: ubuntu-latest
    steps:
      - uses: actions/labeler@ac9175f8a1f3625fd0d4fb234536d26811351594 # pin@v4

  check_pr_size:
    name: Check PR size doesn't break set limit
    runs-on: ubuntu-latest
    steps:
      # checkout your code with your git history
      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # pin@v3
        with:
          fetch-depth: 0

      - name: Get total lines changed
        run: |
          size=$(git diff --stat origin/develop --diff-filter=d \
          | grep -v .lock \
          | awk -F"|" '{ print $2 }' \
          | awk '{ print $1 }' \
          | sed '/^$/d' \
          | paste -sd+ - \
          | bc)

          echo "size=${size}" >> $GITHUB_ENV
          echo ""
          echo "Total lines changed (note: *.lock files are excluded from this count): "
          echo $size
        shell: bash
      - run: |
          if [[ $size -gt 500 ]]
          then
            echo "Warning - total lines changed is greater than 500."
            echo "Please consider breaking this PR down."
            exit 1
          fi
        shell: bash