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.github/workflows/codecov.yml

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# Code Coverage Workflow
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#
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# This workflow measures and reports code coverage to ensure comprehensive testing.
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# It runs on every push/PR to master branch.
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#
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# What it does:
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# 1. Runs all tests with coverage reporting enabled
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# 2. Generates coverage reports showing which code is tested
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# 3. Uploads coverage data to Codecov for tracking over time
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# 4. Provides coverage badges and reports in pull requests
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# 5. Helps identify untested code that needs more test coverage
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#
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# This ensures the codebase is well-tested and helps maintain code quality.
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name: Code Coverage
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on:
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# Dependency Updates Workflow
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#
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# This workflow automatically updates dependencies to keep the project secure and up-to-date.
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# It runs every day at 9 AM UTC and can also be triggered manually.
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#
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# What it does:
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# 1. Checks for outdated npm dependencies
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# 2. Updates them to the latest versions
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# 3. Runs tests to ensure nothing breaks after updates
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# 4. Creates a pull request with the changes if tests pass
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# 5. Includes detailed PR description with what was updated
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#
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# This helps maintain security and ensures the project uses the latest stable versions.
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name: Dependency Updates
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on:
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schedule:
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# Run every day at 9 AM UTC
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- cron: '0 9 * * *'
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workflow_dispatch: # Allow manual trigger
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jobs:
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update-dependencies:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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with:
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token: ${{ secrets.GITHUB_TOKEN }}
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- name: Setup Node.js
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uses: actions/setup-node@v4
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with:
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node-version: '20'
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cache: 'yarn'
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- name: Install dependencies
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run: yarn install --frozen-lockfile
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- name: Check for outdated dependencies
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run: yarn outdated || true
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- name: Update dependencies
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run: |
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yarn upgrade-interactive --latest
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yarn install
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continue-on-error: true
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- name: Run tests after updates
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run: yarn test
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- name: Create Pull Request
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uses: peter-evans/create-pull-request@v5
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with:
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token: ${{ secrets.GITHUB_TOKEN }}
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commit-message: 'chore(deps): update dependencies'
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title: 'chore(deps): update dependencies'
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body: |
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## 🤖 Automated Dependency Updates
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This PR updates dependencies to their latest versions.
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### Changes:
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- Updated development dependencies
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- Updated production dependencies
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### Testing:
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- ✅ All tests pass
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- ✅ Build successful
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Please review the changes and merge if everything looks good.
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branch: chore/update-dependencies
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delete-branch: true

.github/workflows/package-test.yml

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# Package Test Workflow
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#
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# This workflow tests that the published package works correctly when installed by users.
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# It runs on every push/PR to master branch.
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#
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# What it does:
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# 1. Builds the package using the current code
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# 2. Creates a test project in a separate directory
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# 3. Installs the built package as if it were published to npm
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# 4. Runs tests to ensure the package works correctly when imported
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# 5. Verifies that all exports are working as expected
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#
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# This ensures that users can actually use the package after installation.
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name: Package Test
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.github/workflows/performance.yml

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# Performance Testing Workflow
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#
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# This workflow runs performance benchmarks to ensure the library remains fast and efficient.
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# It runs on every push/PR to main/master and can be triggered manually.
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#
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# What it measures:
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# 1. wcwidth function performance - how fast single character width calculation is
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# 2. wcswidth function performance - how fast string width calculation is
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# 3. Memory usage under load - ensures no memory leaks
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# 4. Bundle size - tracks if the package is getting larger
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# 5. Performance regression detection - compares against baselines
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#
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# This helps catch performance issues early and ensures the library stays performant.
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name: Performance Testing
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on:
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push:
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branches: [ main, master ]
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pull_request:
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branches: [ main, master ]
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workflow_dispatch: # Allow manual trigger
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jobs:
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benchmark:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Setup Node.js
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uses: actions/setup-node@v4
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with:
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node-version: '20'
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cache: 'yarn'
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- name: Install dependencies
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run: yarn install --frozen-lockfile
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- name: Build project
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run: yarn build
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- name: Run performance benchmarks
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run: |
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echo "Running wcwidth performance tests..."
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node -e "
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const { wcwidth } = require('./dist/index.js');
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const iterations = 1000000;
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const start = performance.now();
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for (let i = 0; i < iterations; i++) {
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wcwidth(65); // 'A'
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wcwidth(0x4E00); // '一'
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wcwidth(0); // null
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}
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const end = performance.now();
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const avgTime = (end - start) / iterations;
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console.log(\`wcwidth: \${avgTime.toFixed(6)}ms per call\`);
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console.log(\`Total time: \${(end - start).toFixed(2)}ms for \${iterations} calls\`);
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"
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- name: Run wcswidth performance tests
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run: |
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echo "Running wcswidth performance tests..."
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node -e "
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const { wcswidth } = require('./dist/index.js');
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const testStrings = [
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'Hello World',
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'Hello 世界',
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'A'.repeat(1000),
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'一'.repeat(100),
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'Hello\u0000World'
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];
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const iterations = 10000;
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const start = performance.now();
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for (let i = 0; i < iterations; i++) {
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testStrings.forEach(str => wcswidth(str));
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}
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const end = performance.now();
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const avgTime = (end - start) / (iterations * testStrings.length);
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console.log(\`wcswidth: \${avgTime.toFixed(6)}ms per call\`);
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console.log(\`Total time: \${(end - start).toFixed(2)}ms for \${iterations * testStrings.length} calls\`);
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"
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- name: Memory usage test
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run: |
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echo "Testing memory usage..."
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node -e "
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const { wcswidth, wcwidth } = require('./dist/index.js');
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const initialMemory = process.memoryUsage();
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console.log('Initial memory:', initialMemory);
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// Perform intensive operations
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for (let i = 0; i < 100000; i++) {
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wcswidth('Hello World ' + i);
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wcwidth(i % 65536);
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}
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const finalMemory = process.memoryUsage();
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console.log('Final memory:', finalMemory);
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const memoryIncrease = {
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heapUsed: finalMemory.heapUsed - initialMemory.heapUsed,
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heapTotal: finalMemory.heapTotal - initialMemory.heapTotal,
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external: finalMemory.external - initialMemory.external
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};
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console.log('Memory increase:', memoryIncrease);
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"
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- name: Bundle size check
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run: |
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echo "Checking bundle size..."
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du -h dist/index.js
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echo "Number of lines in dist:"
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find dist -name "*.js" -exec wc -l {} \;
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- name: Performance regression check
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run: |
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echo "Checking for performance regressions..."
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# This would typically compare against baseline metrics
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# For now, we'll just log the current performance
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echo "Performance metrics logged above"
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echo "Consider setting up performance monitoring with tools like:"
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echo "- GitHub Actions performance tracking"
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echo "- Bundle size monitoring"
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echo "- Runtime performance baselines"

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