ci: migrate to GitHub Actions (hexojs#247)

.github/workflows/linter.yml

@@ -0,0 +1,20 @@
+name: Linter
+
+on: [push, pull_request]
+
+jobs:
+  linter:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js 14.x
+        uses: actions/setup-node@v2
+        with:
+          node-version: '14.x'
+      - name: Install Dependencies
+        run: npm install
+      - name: Lint
+        run: |
+          npm run eslint
+        env:
+          CI: true

.github/workflows/tester.yml

@@ -0,0 +1,46 @@
+name: Tester
+
+on: [push, pull_request]
+
+jobs:
+  tester:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: ['12.x', '14.x']
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install Dependencies
+        run: npm install
+      - name: Test
+        run: npm run test
+        env:
+          CI: true
+  coverage:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: ['14.x']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install Dependencies
+        run: npm install
+      - name: Coverage
+        run: npm run test-cov
+        env:
+          CI: true
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.github_token }}

.gitignore

@@ -5,3 +5,4 @@ tmp/
 .idea/
 .nyc_output/
 highlight_alias.json
+coverage/

package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "eslint": "eslint lib test",
     "test": "mocha",
-    "test-cov": "nyc npm run test",
+    "test-cov": "nyc --reporter=lcovonly npm run test",
     "build:highlight": "node scripts/build_highlight_alias.js",
     "prepare": "npm run build:highlight"
   },