Linting & tests in CI

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Source code
+*.ts text eol=lf
+*.js text eol=lf
+*.json text eol=lf
+*.md text eol=lf
+
+# GitHub Actions
+*.yml text eol=lf
+*.yaml text eol=lf
+
+# Scripts
+*.sh text eol=lf
+
+# Documentation
+*.txt text eol=lf
+LICENSE text eol=lf
+README text eol=lf
+
+# Binary files
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.mov binary
+*.mp4 binary
+*.mp3 binary
+*.zip binary
+*.gz binary

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [master, main, develop]
+  pull_request:
+    branches: [master, main, develop]
+
+jobs:
+  build:
+    name: Build & Lint & Test
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run ESLint
+        run: npm run lint
+
+      - name: Run tests
+        run: npm test
+
+      - name: Build project
+        run: npm run build
+
+      - name: Check build output
+        run: |
+          ls -lh dist/
+          echo "IIFE bundle size: $(du -h dist/pixelguide.js | cut -f1)"
+          echo "ESM bundle size: $(du -h dist/pixelguide.esm.js | cut -f1)"
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        if: matrix.node-version == '20.x'
+        with:
+          name: dist-files
+          path: dist/
+          retention-days: 7
+
+      - name: Generate coverage report
+        run: npm run test:coverage
+        if: matrix.node-version == '20.x'
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        if: matrix.node-version == '20.x'
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage/coverage-final.json
+          flags: unittests
+          name: codecov-umbrella
+          fail_ci_if_error: false
+        continue-on-error: true

.github/workflows/lint.yml

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+name: Lint
+
+on:
+  push:
+    branches: ['**']
+  pull_request:
+    branches: ['**']
+
+jobs:
+  lint:
+    name: ESLint
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run ESLint
+        run: npm run lint
+
+      - name: Run ESLint with no warnings (strict mode)
+        run: npm run lint:check
+        continue-on-error: true

.github/workflows/test.yml

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+name: Test
+
+on:
+  push:
+    branches: ['**']
+  pull_request:
+    branches: ['**']
+
+jobs:
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm test
+
+      - name: Generate coverage report
+        run: npm run test:coverage
+        if: matrix.node-version == '20.x'
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        if: matrix.node-version == '20.x'
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage/coverage-final.json
+          flags: unittests
+          name: codecov-umbrella
+          fail_ci_if_error: false
+        continue-on-error: true

.gitignore

@@ -1,6 +1,6 @@
 # Dependencies
 node_modules/
-package-lock.json
+# package-lock.json should be committed for reproducible builds
 yarn.lock
 pnpm-lock.yaml