line-stats.yml

name: Line Stats

on:
  push:
    branches: [main]

permissions:
  contents: read

jobs:
  line-stats:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2
      - name: Count lines added/deleted
        run: |
          echo "### Commit: ${{ github.sha }}"
          STATS=$(git diff --shortstat HEAD~1 HEAD)
          echo "$STATS"
          ADDED=$(git diff --numstat HEAD~1 HEAD | awk '{s+=$1} END {print s+0}')
          DELETED=$(git diff --numstat HEAD~1 HEAD | awk '{s+=$2} END {print s+0}')
          echo "Lines added: $ADDED"
          echo "Lines deleted: $DELETED"
          echo "### Summary" >> "$GITHUB_STEP_SUMMARY"
          echo "| Metric | Count |" >> "$GITHUB_STEP_SUMMARY"
          echo "|--------|-------|" >> "$GITHUB_STEP_SUMMARY"
          echo "| Lines added | $ADDED |" >> "$GITHUB_STEP_SUMMARY"
          echo "| Lines deleted | $DELETED |" >> "$GITHUB_STEP_SUMMARY"
          echo "| Net change | $((ADDED - DELETED)) |" >> "$GITHUB_STEP_SUMMARY"