#561 replace travis with GitHub action

.github/workflows/html5sortable.yml

@@ -0,0 +1,29 @@
+name: Build and test 
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Cache node modules
+      uses: actions/cache@v2
+      env: 
+        cache-name: cache-node-modules
+      with:
+        path: ~/.npm
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+        restore-keys: |
+          ${{ runner.os }}-build-${{ env.cache-name }}-
+          ${{ runner.os }}-build-
+          ${{ runner.os }}-
+
+    - name: Build and test
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12.x
+    - run: npm ci
+    - run: npm run github-build

package.json

@@ -81,7 +81,7 @@
     "build": "rollup -c && cp $npm_package_main docs/html5sortable.js",
     "release": "sh make-release.sh",
     "standard": "standard 'src/*.ts' '__tests__/*.ts' | snazzy",
-    "travis": "npm run cover && npm run standard",
+    "github-build": "npm run cover && npm run standard",
     "cover": "jest --colors --coverage --coverageReporters=text-lcov | coveralls",
     "postversion": "npm run release",
     "tsc": "tsc ./src/*.ts --pretty --diagnostics --noEmit --watch"