ci: add release quality gates to prevent issue #419 class of misses

.github/workflows/publish.yml

@@ -5,7 +5,39 @@ on:
     types: [published]
 
 jobs:
+  # Runs the full test suite against React 17 and 18 before any publish step.
+  # Both matrix jobs must pass — if any fail, the publish job never runs.
+  # React 19 is excluded until pull-to-refresh setState/act compatibility is fixed.
+  validate:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        react: ['17', '18']
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Swap to React ${{ matrix.react }}
+        run: |
+          yarn add --dev react@${{ matrix.react }} react-dom@${{ matrix.react }}
+
+      - name: Type check
+        run: yarn ts-check
+
+      - name: Unit tests
+        run: yarn test --runInBand
+
   publish:
+    needs: validate
     runs-on: ubuntu-latest
     permissions:
       contents: read

.github/workflows/push.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [18.x, 20.x, 22.x]
+        node-version: [20.x, 22.x]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/size.yml

@@ -0,0 +1,27 @@
+name: Bundle Size
+
+on: [pull_request]
+
+jobs:
+  size:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      # Posts a PR comment showing the gzip size diff vs the base branch.
+      # Does not require size-limit to be installed on the base branch —
+      # measures the built artifact sizes directly.
+      - uses: preactjs/compressed-size-action@v2
+        with:
+          repo-token: '${{ secrets.GITHUB_TOKEN }}'
+          pattern: 'dist/{index.es.js,index.js}'
+          build-script: 'build'

.github/workflows/test-build-artifacts.yml

@@ -0,0 +1,70 @@
+name: Test Build Artifacts
+
+on:
+  push:
+    branches: [master, 'feat/**', 'fix/**', 'ci/**']
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        format: [cjs, esm]
+
+    name: Artifact — ${{ matrix.format }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Build
+        run: yarn build
+
+      - name: Smoke test CJS artifact
+        if: matrix.format == 'cjs'
+        run: |
+          node -e "
+            const m = require('./dist/index.js');
+            const component = m.default || m;
+            if (typeof component !== 'function') {
+              console.error('CJS default export is not a function, got:', typeof component);
+              process.exit(1);
+            }
+            console.log('CJS OK — default export is a function');
+          "
+
+      - name: Smoke test ESM artifact
+        if: matrix.format == 'esm'
+        run: |
+          # Verify ES module syntax is present (export keyword) and file is non-empty.
+          # A full dynamic import would require React as an ESM peer which varies by version,
+          # so we validate structure and let the React-version matrix cover runtime behaviour.
+          if ! grep -q "^export " dist/index.es.js; then
+            echo "ESM artifact missing top-level export statement"
+            exit 1
+          fi
+          echo "ESM OK — top-level export found"
+          node -e "
+            const fs = require('fs');
+            const size = fs.statSync('./dist/index.es.js').size;
+            if (size < 100) { console.error('ESM artifact suspiciously small:', size, 'bytes'); process.exit(1); }
+            console.log('ESM artifact size OK:', size, 'bytes');
+          "
+
+      - name: Type declarations exist
+        run: |
+          if [ ! -f dist/index.d.ts ]; then
+            echo "dist/index.d.ts is missing"
+            exit 1
+          fi
+          echo "Type declarations OK"

.github/workflows/test-react-versions.yml

@@ -0,0 +1,42 @@
+name: Test React Versions
+
+on:
+  push:
+    branches: [master, 'feat/**', 'fix/**', 'ci/**']
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - react: '17'
+          - react: '18'
+
+    name: React ${{ matrix.react }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      # Swap the React version before running tests.
+      # This also catches an overly-narrow peerDependencies range at install time —
+      # e.g. "^17" blocks React 18/19 and yarn add will fail here first.
+      - name: Swap to React ${{ matrix.react }}
+        run: yarn add --dev react@${{ matrix.react }} react-dom@${{ matrix.react }}
+
+      - name: Type check
+        run: yarn ts-check
+
+      - name: Unit tests
+        run: yarn test --runInBand

.github/workflows/test-ts-versions.yml

@@ -0,0 +1,48 @@
+name: Test TypeScript Versions
+
+on:
+  push:
+    branches: [master, 'feat/**', 'fix/**', 'ci/**']
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        # 4.9 is the baseline pinned in devDependencies.
+        # 4.5/4.7 omitted — transitive @types/node uses accessor syntax requiring TS 4.9+,
+        # causing parse errors that skipLibCheck cannot suppress.
+        typescript: ['4.9', '5.0', '5.4', 'latest']
+
+    name: TypeScript ${{ matrix.typescript }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Swap to TypeScript ${{ matrix.typescript }}
+        run: yarn add --dev typescript@${{ matrix.typescript }}
+
+      # Type-check the library source only (tsconfig.lib.json excludes __tests__).
+      # Test files need @types/jest globals which changed resolution in TS 6+,
+      # so we validate the public API surface in isolation.
+      # TS 6.x deprecated moduleResolution:node — pass ignoreDeprecations via CLI
+      # (it's a TS 5.0+ option so cannot live in tsconfig.json for our 4.9 matrix job).
+      - name: Type check library source
+        run: |
+          TS_MAJOR=$(npx tsc --version | grep -oE '[0-9]+' | head -1)
+          if [ "$TS_MAJOR" -ge 6 ]; then
+            npx tsc -p tsconfig.lib.json --noEmit --ignoreDeprecations 6.0
+          else
+            npx tsc -p tsconfig.lib.json --noEmit
+          fi

package.json

@@ -3,7 +3,7 @@
   "version": "7.0.1",
   "description": "An Infinite Scroll component in react.",
   "engines": {
-    "node": ">=18.18.0"
+    "node": ">=20.0.0"
   },
   "source": "src/index.tsx",
   "main": "dist/index.js",
@@ -22,6 +22,7 @@
     "prettify": "prettier --write 'src/**/*'",
     "ts-check": "tsc -p tsconfig.json --noEmit",
     "test": "jest",
+    "size": "size-limit",
     "prepare": "husky"
   },
   "repository": {
@@ -51,6 +52,7 @@
     "@babel/preset-env": "^7.28.5",
     "@babel/preset-react": "^7.28.5",
     "@babel/preset-typescript": "^7.28.5",
+    "@size-limit/preset-small-lib": "^12.0.1",
     "@storybook/addon-essentials": "^7.6.0",
     "@storybook/react": "^7.6.0",
     "@storybook/react-webpack5": "^7.6.0",
@@ -76,13 +78,24 @@
     "rollup": "^1.26.3",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-typescript2": "^0.25.2",
+    "size-limit": "^12.0.1",
     "storybook": "^7.6.0",
     "ts-jest": "^29.4.6",
     "typescript": "^4.9.0"
   },
   "dependencies": {
     "throttle-debounce": "^2.1.0"
   },
+  "size-limit": [
+    {
+      "path": "dist/index.es.js",
+      "limit": "6 kB"
+    },
+    {
+      "path": "dist/index.js",
+      "limit": "6 kB"
+    }
+  ],
   "lint-staged": {
     "*.{js,css,json,md}": [
       "prettier --write"

src/__tests__/package.test.ts

@@ -0,0 +1,42 @@
+export {};
+
+/**
+ * Validates package.json fields that affect consumers at install time.
+ * These checks run on every `yarn test` invocation — no extra infrastructure needed.
+ *
+ * Issue class caught: overly-narrow peerDependency ranges (e.g. "^17" instead of ">=17")
+ * that block React 18/19 consumers at npm install, like #419.
+ */
+
+// eslint-disable-next-line @typescript-eslint/no-require-imports
+const pkg = require('../../package.json') as {
+  peerDependencies: Record<string, string>;
+  devDependencies: Record<string, string>;
+};
+
+describe('package.json — peer dependency ranges', () => {
+  it('react peer dep uses >= (open-ended), not ^ (caret-bounded)', () => {
+    // "^17.0.0" resolves to >=17 <18 — blocks React 18/19 consumers at install time.
+    // Must be ">=17.0.0" or similar open range.
+    expect(pkg.peerDependencies.react).toMatch(/^>=/);
+  });
+
+  it('react-dom peer dep uses >= (open-ended), not ^ (caret-bounded)', () => {
+    expect(pkg.peerDependencies['react-dom']).toMatch(/^>=/);
+  });
+
+  it('peer dep floor is not higher than the version we test against in devDependencies', () => {
+    // Guards against bumping the peer dep floor without updating our dev/test version.
+    // e.g. peerDep ">=19" while devDep is still "^17" would mean our tests don't cover
+    // the minimum version we claim to support.
+    const peerFloor = parseInt(
+      /\d+/.exec(pkg.peerDependencies.react)?.[0] ?? '',
+      10
+    );
+    const devMajor = parseInt(
+      /\d+/.exec(pkg.devDependencies.react)?.[0] ?? '',
+      10
+    );
+    expect(peerFloor).toBeLessThanOrEqual(devMajor);
+  });
+});

tsconfig.lib.json

@@ -0,0 +1,5 @@
+{
+  "extends": "./tsconfig.json",
+  "include": ["src/index.tsx", "src/utils/**/*"],
+  "exclude": ["node_modules", "dist", "src/__tests__"]
+}