llvm-diff.yml

name: Diff LLVM and Clang against fork of monorepo
on:
  pull_request:
    paths:
      - 'interpreter/llvm-project/**'

jobs:
  llvm-diff:
    runs-on: ubuntu-latest
    steps:
      - name: Check out ROOT
        uses: actions/checkout@v6
        with:
          path: root
      - name: Determine tag in fork of monorepo
        id: determine-tag
        run: |
          tag_file=root/interpreter/llvm-project/llvm-project.tag
          echo "tag=$(cat $tag_file)" >> $GITHUB_OUTPUT
          rm $tag_file
      - name: Check out llvm-project
        uses: actions/checkout@v6
        with:
          repository: root-project/llvm-project
          ref: ${{ steps.determine-tag.outputs.tag }}
          path: llvm-project
      - name: Delete directories and files in llvm-project
        working-directory: llvm-project
        run: |
          for d in bindings benchmark benchmarks gn test tests unittest unittests; do
            find . -name $d -prune -exec rm -r "{}" \;
          done
          rm -r llvm/utils/vscode
          for f in $(ls -A); do
            [ -e ../root/interpreter/llvm-project/$f ] || rm -r $f
          done
          # Only compare what is already there in third-party
          for f in $(ls -A third-party); do
            [ -e ../root/interpreter/llvm-project/third-party/$f ] || rm -r third-party/$f
          done
      - name: Compare
        run: diff -ur llvm-project/ root/interpreter/llvm-project/