analysis.yml

name: Analysis

on:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  decompile-diff:
    name: Decompile Diff
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Setup Rust toolchain
        uses: dtolnay/rust-toolchain@stable

      - name: Cache Rust dependencies
        uses: Swatinem/rust-cache@v2
        with:
          cache-all-crates: true

      - name: Build azoth CLI
        run: cargo build --bin azoth --release

      - name: Run decompile-diff analysis
        id: analysis
        run: |
          DEPLOYMENT="examples/escrow-bytecode/artifacts/erc20_deployment.hex"
          RUNTIME="examples/escrow-bytecode/artifacts/erc20_runtime.hex"

          if [[ ! -f "$DEPLOYMENT" ]] || [[ ! -f "$RUNTIME" ]]; then
            echo "::error::Bytecode artifacts not found"
            exit 1
          fi

          # Run decompile-diff, capturing statistics to stdout and diff to file
          RUST_LOG=error ./target/release/azoth decompile-diff \
            --deployment "$DEPLOYMENT" \
            --runtime "$RUNTIME" \
            --iterations 50 \
            --changed-only \
            -o decompile-diff.txt \
            > statistics.txt 2>&1 || true

      - name: Create or update PR comment
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const statistics = fs.readFileSync('statistics.txt', 'utf8');
            const diff = fs.readFileSync('decompile-diff.txt', 'utf8');
            const sha = context.payload.pull_request.head.sha.substring(0, 7);

            const commentMarker = '<!-- decompile-diff-analysis -->';
            const body = [
              commentMarker,
              '## Decompile Diff Analysis',
              '',
              statistics,
              '',
              '<details>',
              '<summary>Full Diff Output</summary>',
              '',
              '```diff',
              diff,
              '```',
              '',
              '</details>',
              '',
              `<sub>Commit ${sha}</sub>`,
            ].join('\n');

            // Find existing comment
            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
            });

            const existingComment = comments.find(c => c.body.includes(commentMarker));

            if (existingComment) {
              // Update existing comment
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: existingComment.id,
                body: body,
              });
              console.log(`Updated existing comment ${existingComment.id}`);
            } else {
              // Create new comment
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                body: body,
              });
              console.log('Created new comment');
            }