Contribution Statistics

name: Generate Contribution Statistics

on:
  push:
    branches:
      - main

jobs:
  generate-stats:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    if: "github.event.pusher.email != 'action@github.com'"

    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0

      - name: Set up Git user
        run: |
          git config user.name "GitHub Action"
          git config user.email "action@github.com"

      - name: Generate statistics
        run: |
          echo "# Commit statistik" > CONTRIBUTORS.md
          echo "| Contributor | Email | Commits | Added | Deleted | Last Commit |" > CONTRIBUTORS.md
          echo "|-------------|-------|---------|-------|---------|--------------|" >> CONTRIBUTORS.md
          temp_file=$(mktemp)
          git log --format='%aN <%aE>' | sort -u | while read contributor; do
            name=$(echo $contributor | cut -d ' ' -f1,2)
            email=$(echo $contributor | cut -d '<' -f2 | cut -d '>' -f1)
            commits=$(git log --author="$email" --pretty=tformat: --numstat | grep -v -e '^$' | wc -l)
            lines_added=$(git log --author="$email" --pretty=tformat: --numstat | awk '{sum+=$1} END {print sum}')
            lines_deleted=$(git log --author="$email" --pretty=tformat: --numstat | awk '{sum+=$2} END {print sum}')
            last_commit=$(git log --author="$email" --pretty=format:"%h" -n 1)
            echo "$commits|$name|$email|$lines_added|$lines_deleted|$last_commit" >> $temp_file
          done
          sort -t'|' -k1,1 -nr $temp_file | while IFS="|" read -r commits name email lines_added lines_deleted last_commit; do
            echo "| $name | $email | $commits | $lines_added | $lines_deleted | $last_commit |" >> CONTRIBUTORS.md
          done
          rm $temp_file

      - name: Add and commit CONTRIBUTORS.md file
        run: |
          git add CONTRIBUTORS.md
          git commit -m "Update CONTRIBUTORS.md file" || echo "No changes to commit"

      - name: Push changes
        run: |
          git push

      - name: Yay!
        run: echo Marcus Was Here!

on:
  pull_request:
    branches:
      - main

runs-on: windows-latest

runs-on: macos-latest