compiler/.github/workflows/pr-preview.yml at 8032dde16443fdcf9cf4b8beb63d7141afacb507 · arkade-os/compiler · GitHub

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name: PR Preview

on:
  pull_request:
    types: [opened, synchronize, reopened, closed]
    branches:
      - master

permissions:
  contents: write
  pull-requests: write

concurrency:
  group: pr-preview-${{ github.event.number }}
  cancel-in-progress: true

jobs:
  deploy-preview:
    if: github.event.action != 'closed'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout PR branch
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-unknown-unknown

      - name: Cache Rust dependencies
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-cargo-

      - name: Install wasm-pack
        uses: jetli/wasm-pack-action@v0.4.0
        with:
          version: 'latest'

      - name: Generate contracts.js
        run: ./playground/generate_contracts.sh

      - name: Build WASM package
        run: wasm-pack build --target web --out-dir playground/pkg -- --features wasm

      - name: Clean up WASM package artifacts
        run: |
          rm -f playground/pkg/.gitignore
          rm -f playground/pkg/package.json
          rm -f playground/pkg/README.md

      - name: Remove playground .gitignore so generated files are included
        run: rm playground/.gitignore

      - name: Deploy PR preview
        uses: JamesIves/github-pages-deploy-action@v4
        with:
          branch: gh-pages
          folder: playground
          target-folder: pr-previews/pr-${{ github.event.number }}
          clean: true

      - name: Post or update PR comment
        uses: actions/github-script@v7
        with:
          script: |
            const pr = context.payload.pull_request.number;
            const previewUrl = `https://arkade-os.github.io/compiler/pr-previews/pr-${pr}/`;
            const marker = '<!-- arkade-pr-preview -->';
            const body = `${marker}
            ### Playground Preview

            A live preview of this PR's playground is available at:
            **[${previewUrl}](${previewUrl})**

            > Built from commit \`${{ github.sha }}\` · [Workflow run](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})`;

            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: pr,
            });

            const existing = comments.find(c => c.body.includes(marker));

            if (existing) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: existing.id,
                body,
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pr,
                body,
              });
            }

  cleanup-preview:
    if: github.event.action == 'closed'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout gh-pages branch
        uses: actions/checkout@v4
        with:
          ref: gh-pages

      - name: Remove preview directory
        run: |
          PR_DIR="pr-previews/pr-${{ github.event.number }}"
          if [ -d "$PR_DIR" ]; then
            git config user.name "github-actions[bot]"
            git config user.email "github-actions[bot]@users.noreply.github.com"
            git rm -rf "$PR_DIR"
            git commit -m "chore: remove PR preview for #${{ github.event.number }}"
            git push
          else
            echo "No preview directory found at $PR_DIR, nothing to clean up."
          fi