build_and_notify.yml

name: Build and Notify

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]

jobs:
  build_and_notify:
    runs-on: ubuntu-latest

    steps:
      # ---------------------------------
      # 0️⃣ Checkout
      # ---------------------------------
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Log checkout info
        run: |
          echo "Repository checked out"
          echo "Commit SHA: $GITHUB_SHA"
          echo "Branch: $GITHUB_REF"

      # ---------------------------------
      # 1️⃣ Detect docs changes
      # ---------------------------------
      - name: Detect docs changes
        id: detect_docs
        run: |
          BASE="${{ github.event.before }}"
          HEAD="${{ github.sha }}"

          if [ "$BASE" = "0000000000000000000000000000000000000000" ]; then
            BASE="$(git rev-list --max-parents=0 HEAD)"
          fi

          if git diff --name-only "$BASE" "$HEAD" | grep -q '^docs/'; then
            echo "DOCS_CHANGED=true" >> "$GITHUB_ENV"
          else
            echo "DOCS_CHANGED=false" >> "$GITHUB_ENV"
          fi

          # Save commits to environment for Python script
          echo "BASE_COMMIT=$BASE" >> "$GITHUB_ENV"
          echo "HEAD_COMMIT=$HEAD" >> "$GITHUB_ENV"

      # ---------------------------------
      # 2️⃣ Enforce commit policy & send Discord
      # ---------------------------------
      - name: Enforce commit policy and notify
        env:
          DOCS_CHANGED: ${{ env.DOCS_CHANGED }}
          BASE_COMMIT: ${{ env.BASE_COMMIT }}
          HEAD_COMMIT: ${{ env.HEAD_COMMIT }}
          DISCORD_WEBHOOK_GENERAL: ${{ secrets.DISCORD_WEBHOOK_GENERAL }}
          DISCORD_WEBHOOK_LLVM_DISCUSSION: ${{ secrets.DISCORD_WEBHOOK_LLVM_DISCUSSION }}
        run: |
          python3 .ci/commit_policy.py

      # ---------------------------------
      # 3️⃣ Build project
      # ---------------------------------
      - name: Build project
        run: |
          echo "Starting build"
          echo "Build completed successfully"

      # ---------------------------------
      # 4️⃣ Notify pipeline completion
      # ---------------------------------
      - name: Notify
        run: |
          echo "Documentation changed: $DOCS_CHANGED"
          echo "CI pipeline finished"