Add autoreload and serve files directly from rollup

Author: typpo

README.md

@@ -142,7 +142,7 @@ If you want to contribute to this project, you will also need to install Python
 
 Running `./server.sh` will start a basic Python webserver.  Go to http://localhost:8001/examples/index.html to load a simple example.
 
-If you're making changes to the code, run `yarn build` to update the build outputs.  `yarn build:watch` will continuously watch for your changes and update the build.
+If you're making changes to the code, run `yarn build` to update the build outputs.  `yarn build:watch` will continuously watch for your changes and update the build and also host a server on localhost:8001 (so you don't have to start the Python server separately).
 
 # Usage
 

package.json

@@ -21,11 +21,13 @@
     "prettier": "^1.18.2",
     "rollup": "^0.67.4",
     "rollup-plugin-commonjs": "^9.2.0",
+    "rollup-plugin-livereload": "^1.0.3",
     "rollup-plugin-node-resolve": "^4.0.0"
   },
   "dependencies": {
     "julian": "^0.2.0",
     "postprocessing": "^6.8.0",
+    "rollup-plugin-serve": "^1.0.1",
     "three": "^0.107.0"
   }
 }

rollup.config.js

@@ -1,5 +1,7 @@
 import commonjs from 'rollup-plugin-commonjs';
+import livereload from 'rollup-plugin-livereload';
 import resolve from 'rollup-plugin-node-resolve';
+import serve from 'rollup-plugin-serve';
 
 export default {
   input: 'src/spacekit.js',
@@ -10,5 +12,10 @@ export default {
       file: 'build/spacekit.js',
     },
   ],
-  plugins: [resolve(), commonjs()],
+  plugins: [
+    resolve(),
+    commonjs(),
+    livereload(),
+    serve({ port: 8001, contentBase: ['.'] }),
+  ],
 };