ctk-terraform/.github/workflows/d2-diagrams.yml at 7cd8f85454ccb7e5fdaf78f23243b38efd713889 · childmindresearch/ctk-terraform · GitHub

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name: Build D2 Architecture Diagrams

on:
  pull_request:
    paths:
      - 'diagrams/**/*.d2'
      - '.github/workflows/d2-diagrams.yml'
  push:
    branches:
      - main
    paths:
      - 'diagrams/**/*.d2'
      - '.github/workflows/d2-diagrams.yml'

permissions:
  contents: read
  pull-requests: write

jobs:
  build-diagrams:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Install D2
        run: |
          curl -fsSL https://d2lang.com/install.sh | sh -s --
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Build D2 diagrams
        run: |
          mkdir -p diagrams/output
          d2 diagrams/main.d2 diagrams/output/architecture.svg
          echo "✅ Generated architecture.svg"

      - name: Upload diagram as artifact
        uses: actions/upload-artifact@v4
        with:
          name: architecture-diagram
          path: diagrams/output/architecture.svg
          retention-days: 90

      - name: Post diagram to PR comment
        if: github.event_name == 'pull_request'
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const path = require('path');

            // Read the SVG file
            const svgPath = path.join(
              process.env.GITHUB_WORKSPACE,
              'diagrams/output/architecture.svg'
            );
            const svgContent = fs.readFileSync(svgPath, 'utf8');

            // Create comment body with embedded SVG
            const commentBody = '## 🏗️ Architecture Diagram Updated\n\n' +
              'The D2 architecture diagram has been regenerated based on the changes in this PR.\n\n' +
              '### Production Architecture\n\n' +
              '<details>\n' +
              '<summary>Click to view diagram</summary>\n\n' +
              svgContent + '\n\n' +
              '</details>\n\n' +
              '---\n\n' +
              '📥 You can also download the diagram from the [workflow artifacts]' +
              '(https://github.com/' + context.repo.owner + '/' + context.repo.repo + '/actions/runs/' + context.runId + ').';

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

            const botComment = comments.data.find(comment =>
              comment.user.type === 'Bot' &&
              comment.body.includes('🏗️ Architecture Diagram Updated')
            );

            // Update or create comment
            if (botComment) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: botComment.id,
                body: commentBody
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                body: commentBody
              });
            }