GH Actions (#54)

* Remove bower.json

* update karma config

* Add npm build script

* (actions) add GH actions

* (travis) remove travis

* build; add package-lock.json

* (README) update CI badge

.github/workflows/main.yml

@@ -0,0 +1,39 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+    branches-ignore:
+      - develop
+
+jobs:
+  ci:
+    name: ${{ matrix.node_version }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node_version: [14, 16]
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node_version }}
+    - name: Install grunt-cli
+      run: npm install -g grunt-cli
+    - name: Install
+      run: npm install
+    - name: Build
+      run: npm run build
+
+    - name: Build Check
+      run: |
+        echo -e "\e[1m\e[35mChecking build folder is up-to-date with library\e[0m"
+        changed_build_files=$(git -C "$(git rev-parse --show-toplevel)" diff --name-only HEAD -- build)
+        if [ -n "$changed_build_files" ]
+        then
+            echo -e "\e[1m\e[31mBuild folder is out-of-sync with library. Build library, npm run build, and (ammend) commit\e[0m"
+            exit 1
+        else
+            echo -e "\e[1m\e[32mBuild folder is up-to-date with library\e[0m"
+        fi

Gruntfile.js

@@ -21,7 +21,7 @@ module.exports = function(grunt) {
       build: {
         configFile: './test/karma.conf.js',
         singleRun: true,
-        browsers: ['PhantomJS']
+        browsers: process.env.CI ? ['FirefoxHeadless'] : ['Firefox'] // jshint ignore:line
       }
     },
     uglify: {

README.md

@@ -1,5 +1,6 @@
-ros2djs [![Build Status](https://api.travis-ci.org/RobotWebTools/ros2djs.png)](https://travis-ci.org/RobotWebTools/ros2djs)
-=======
+# ros2djs
+
+[![CI](https://github.com/RobotWebTools/ros2djs/actions/workflows/main.yml/badge.svg)](https://github.com/RobotWebTools/ros2djs/actions/workflows/main.yml)
 
 #### 2D Visualization Library for use with the ROS JavaScript Libraries
 For full documentation, see [the ROS wiki](http://ros.org/wiki/ros2djs) or check out some [working demos](http://robotwebtools.org/).