chore(build): configure CI/CD with GitHub actions

Fixes #454

Author: Jonathan Ginsburg

.github/workflows/release.yml

@@ -0,0 +1,31 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  main:
+    name: Test and Release
+    runs-on: ubuntu-latest
+    env:
+      NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+      GITHUB_TOKEN: ${{ secrets.KARMARUNNERBOT_GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          token: ${{ env.GITHUB_TOKEN }}
+          fetch-depth: 0
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 12
+          cache: npm
+      - run: npm ci
+      - run: |
+          npm run commitlint -- \
+          --verbose \
+          --from `git merge-base origin/master $GITHUB_SHA`
+      - run: npm run lint
+      - run: npm run test
+      - run: npm run release

.github/workflows/test.yml

@@ -0,0 +1,63 @@
+name: Test
+
+on:
+  push:
+    branches-ignore:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  linux:
+    name: "Node ${{ matrix.node }} on Linux: Test and Lint"
+    runs-on: ubuntu-latest
+    env:
+      DISPLAY: ":0"
+    strategy:
+      matrix:
+        node:
+          - 10
+          - 12
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node }}
+          cache: npm
+      - uses: browser-actions/setup-firefox@latest
+        with:
+          firefox-version: "latest"
+      - run: |
+          sudo apt-get install xvfb && \
+          Xvfb $DISPLAY &> /dev/null &
+      - run: npm ci
+      - run: |
+          npm run commitlint -- \
+          --verbose \
+          --from `git merge-base origin/master $GITHUB_SHA`
+      - run: npm run lint
+      - run: npm run test
+      - run: npm run examples
+  windows:
+    name: "Node ${{ matrix.node }} on Windows: Test and Lint"
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: bash
+    strategy:
+      matrix:
+        node:
+          - 10
+          - 12
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node }}
+          cache: npm
+      - run: npm ci
+      - run: npm run test
+      - run: npm run examples

.travis.yml

@@ -8,7 +8,9 @@
     "test": "mocha",
     "update-contributors": "grunt contributors",
     "examples": "grunt karma",
-    "semantic-release": "semantic-release"
+    "semantic-release": "semantic-release",
+    "release": "npm run update-contributors && semantic-release",
+    "commitlint": "commitlint"
   },
   "repository": {
     "type": "git",
@@ -149,4 +151,4 @@
     "Petar Manev <petar.manev2010@gmail.com>",
     "Robin Böhm <robinboehm@googlemail.com>"
   ]
-}
+}