size-report.yml

name: Size report

on:
  pull_request:
    branches:
      - main

permissions:
  contents: read
  pull-requests: write

jobs:
  size-report:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout main branch code
        uses: actions/checkout@v4
        with:
          ref: main
          path: main-code

      - name: Install pnpm
        uses: pnpm/action-setup@v2
        with:
          version: 8

      - name: Setup Node
        uses: actions/setup-node@v3
        with:
          node-version: 21

      - name: Install dependencies
        working-directory: main-code
        run: pnpm install

      - name: Build main branch
        working-directory: main-code
        run: pnpm run build

      - name: Set DIST_PATH environment variable
        id: set-dist-path
        working-directory: main-code
        run: |
          echo "$(pwd)/dist"
          echo "DIST_PATH=$(pwd)/dist" >> $GITHUB_ENV

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

      - name: Install dependencies
        run: pnpm install

      - name: Build PR code
        run: pnpm run build

      - name: Calculate size
        id: calculate-size
        run: |
          echo "$(pwd)/dist"
          CURRENT_SIZE=$(pnpm tsx scripts/size-report.ts)
          echo "$(CURRENT_SIZE)" >> $GITHUB_ENV

      - name: Display size difference
        run: |
          echo "Previous Size: $PREVIOUS_SIZE"
          echo "Current Size: $CURRENT_SIZE"

      - name: Comment on PR
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const previousSize = process.env.PREVIOUS_SIZE;
            const currentSize = process.env.CURRENT_SIZE;

            const message = `
              # Size Report
              |             | Build Size      |
              |-------------|-----------------|
              | Main branch	| ${previousSize} |
              | Current PR  | ${currentSize}  |
            `;

            github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.payload.pull_request.number,
              body: message,
            });