build(ci): migrate to GitHub Actions (#70)

- make `test-ci` not run coverage, since that will be done by Actions
- rename `test:watch` to `test-watch` for consistency, since
  gulp-style script names (ie, using `:`) are deprecated

.github/workflows/ci.yml

@@ -0,0 +1,51 @@
+name: ci
+on:
+  push:
+  pull_request:
+    types: [opened, reopened]
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: '10.x'
+      - name: Cache Node.js modules
+        uses: actions/cache@v2
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.OS }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.OS }}-node-
+            ${{ runner.OS }}-
+      - run: npm ci
+      - run: npx lockfile-lint --type npm --path package-lock.json --validate-https --allowed-hosts npm
+      - run: npm run build
+  test:
+    name: test
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: '10.x'
+      - name: Cache Node.js modules
+        uses: actions/cache@v2
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.OS }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.OS }}-node-
+            ${{ runner.OS }}-
+      - run: npm ci
+      - run: npm run test-ci
+      - name: Submit test coverage to Coveralls
+        uses: coverallsapp/[email protected]
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

package.json

@@ -10,8 +10,8 @@
   "types": "./dist/index.d.ts",
   "scripts": {
     "test": "jest",
-    "test-ci": "jest --coverage && coveralls < coverage/lcov.info && rm -rf ./coverage",
-    "test:watch": "jest --watch",
+    "test-ci": "jest --coverage",
+    "test-watch": "jest --watch",
     "build": "tsc",
     "prepare": "npm run build"
   },