Adding pr comment bot that alerts if the size has increased. #1
Workflow file for this run
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| name: File Size Check | ||
| # Trigger the workflow on PRs to the main branch. It builds the extension in prod mode and checks the size of the | ||
| # vsix file and webview bundle file and compares it with the main branch. It fails if the size has increased by more than 10%. | ||
| # For vsix, we also check if the size is greater than 25MB. | ||
| on: | ||
| pull_request: | ||
| branches: | ||
| - main | ||
| jobs: | ||
| size-check: | ||
| runs-on: ubuntu-latest | ||
| steps: | ||
| -name: Checkout main branch | ||
| uses: actions/checkout@v4 | ||
| with: | ||
| ref: main | ||
| path: './main' | ||
| -name: Checkout PR branch | ||
| uses: actions/checkout@v4 | ||
| with: | ||
| ref: ${{ github.event.pull_request.head.sha }} | ||
| path: './pr' | ||
| -name: Setup Node.js | ||
| uses: actions/setup-node@v4 | ||
| with: | ||
| node-version: '18' | ||
| -name: Install tools | ||
| run: | | ||
| echo "Installing Yarn" | ||
| npm install --global [email protected] | ||
| echo "Installing Gulp CLI" | ||
| npm install --global [email protected] | ||
| echo "Installing VSCE" | ||
| npm install --global [email protected] | ||
| echo "Installing gulp" | ||
| npm install --global [email protected] | ||
| -name: Build main branch | ||
| run: | | ||
| cd main | ||
| yarn --frozen-lockfile | ||
| yarn build --prod | ||
| yarn gulp package:online | ||
| -name: Build PR branch | ||
| run: | | ||
| cd pr | ||
| yarn --frozen-lockfile | ||
| yarn build --prod | ||
| yarn gulp package:online | ||
| -name: Calculate vsix file sizes | ||
| run: | | ||
| main_vsix=$(find ./main -name "*.vsix") | ||
| pr_vsix=$(find ./main -name "*.vsix") | ||
| main_size=$(stat -c%s "$main_vsix") | ||
| pr_size=$(stat -c%s "$pr_vsix") | ||
| size_diff=$((pr_size - main_size)) | ||
| percentage_change=$((100 * size_diff / main_size)) | ||
| echo "Main branch VSIX size: $main_size bytes" | ||
| echo "PR branch VSIX size: $pr_size bytes" | ||
| echo "Size difference: $size_diff bytes" | ||
| echo "Percentage change: $percentage_change%" | ||
| echo "main_vsix_size=$main_size" >> $GITHUB_ENV | ||
| echo "pr_vsix_size=$pr_size" >> $GITHUB_ENV | ||
| echo "vsix_percentage_change=$percentage_change" >> $GITHUB_ENV | ||
| -name: Calculate webview bundle sizes | ||
| run: | | ||
| main_webview_bundle=$(du -sk ./main/out/src/reactviews/assets | cut -f1) | ||
| pr_webview_bundle=$(du -sk ./pr/out/src/reactviews/assets | cut -f1) | ||
| size_diff=$((pr_size - main_size)) | ||
| percentage_change=$((100 * size_diff / main_size)) | ||
| echo "Main branch bundle size: $main_size KB" | ||
| echo "PR branch bundle size: $pr_size KB" | ||
| echo "Size difference: $size_diff KB" | ||
| echo "Percentage change: $percentage_change%" | ||
| echo "main_webview_bundle_size=$main_size" >> $GITHUB_ENV | ||
| echo "pr_webview_bundle_size=$pr_size" >> $GITHUB_ENV | ||
| echo "webview_bundle_percentage_change=$percentage_change" >> $GITHUB_ENV | ||
| - name: Comment on PR with bundle size difference | ||
| uses: actions/github-script@v7 | ||
| with: | ||
| script: | | ||
| const mainWebviewBundleSize = process.env.main_webview_bundle_size; | ||
| const prWebviewBundleSize = process.env.pr_webview_bundle_size; | ||
| const webviewBundlePercentageChange = process.env.webview_bundle_percentage_change; | ||
| const mainVsixSize = process.env.main_vsix_size; | ||
| const prVsixSize = process.env.pr_vsix_size; | ||
| const vsixPercentageChange = process.env.vsix_percentage_change; | ||
| const comment = ` | ||
| ### VSIX Size Comparison | ||
| - **Main branch VSIX size**: ${mainVsixSize} bytes | ||
| - **PR branch VSIX size**: ${prVsixSize} bytes | ||
| - **Size difference**: ${prVsixSize - mainVsixSize} bytes (${vsixPercentageChange}%) | ||
| ### Bundle Size Comparison | ||
| - **Main branch bundle size**: ${mainWebviewBundleSize} KB | ||
| - **PR branch bundle size**: ${prWebviewBundleSize} KB | ||
| - **Size difference**: ${prWebviewBundleSize - mainWebviewBundleSize} KB (${percentageChange}%) | ||
| `; | ||
| console.log(comment); | ||
| github.issues.createComment({ | ||
| issue_number: context.issue.number, | ||
| owner: context.repo.owner, | ||
| repo: context.repo.repo, | ||
| body: comment | ||
| }); | ||
| - name: Fail if vsix size is increased by 10% or size is above 25mb | ||
| if: ${{ env.vsix_percentage_change > 10 || env.pr_vsix_size > 25000000 }} | ||
| run: exit 1 | ||
| - name: Fail if bundle size is increased by 10% | ||
| if: ${{ env.webview_bundle_percentage_change > 10 }} | ||
| run: exit 1 | ||
