name: PR Info

# This workflow builds the whole project once and:
# - comments build deprecations/warnings (highlighting new ones since last tested PR)

on:
  pull_request:
    branches:
      - master
      - stable

jobs:
  pr_info:
    name: PR Info
    runs-on: ubuntu-20.04
    steps:
    - name: 'Prepare sticky comment'
      # commit of v2.5.0
      # same one used again at the bottom of the file to update the comment.
      uses: marocchino/sticky-pull-request-comment@3d60a5b2dae89d44e0c6ddc69dd7536aec2071cd
      with:
        message: |
          Thanks for your Pull Request and making D better!

          This comment will automatically be updated to summarize some statistics in a few minutes.
        only_create: true

    - name: '[Linux] Install dependencies'
      if: runner.os == 'Linux'
      run: |
        sudo apt-get update && sudo apt-get install -y libcurl4-openssl-dev netcat

    # Compiler to test with
    - name: Prepare compiler
      uses: dlang-community/setup-dlang@v1
      with:
        compiler: ldc-latest

    - name: Checkout
      uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - name: Checkout old stuff, with new comment script
      run: |
        git checkout ${{ github.base_ref }}
        git checkout ${{ github.sha }} -- ./scripts/ci/summary_comment.sh ./scripts/ci/summary_comment_diff.sh

    # first dump old info

    - name: Check pre-PR status
      run: ./scripts/ci/summary_comment.sh | tee ../OLD_OUTPUT.txt

    - name: Checkout PR target
      run: |
        git checkout ${{ github.sha }}
        git clean -fd
        git reset --hard

    - name: Evaluate PR
      run: ./scripts/ci/summary_comment.sh | tee ../NEW_OUTPUT.txt

    - name: Generate comment
      run: ./scripts/ci/summary_comment_diff.sh ../OLD_OUTPUT.txt ../NEW_OUTPUT.txt | tee comment.txt

    - name: Update GitHub comment
      uses: marocchino/sticky-pull-request-comment@3d60a5b2dae89d44e0c6ddc69dd7536aec2071cd
      with:
        path: comment.txt