Move to rollup.config.js

package.json

@@ -8,8 +8,8 @@
     "lib": "./lib"
   },
   "scripts": {
-    "build": "rollup --banner \"`cat src/banner.js`\" --format umd -n CodeMirror src/codemirror.js -o lib/codemirror.js",
-    "watch": "rollup -w --banner \"`cat src/banner.js`\" --format umd -n CodeMirror src/codemirror.js -o lib/codemirror.js",
+    "build": "rollup -c",
+    "watch": "rollup -w -c",
     "prepublish": "npm run-script build",
     "test": "node ./test/run.js",
     "lint": "bin/lint"

src/banner.js → rollup.config.js

-// CodeMirror, copyright (c) by Marijn Haverbeke and others
+export default {
+  banner: `// CodeMirror, copyright (c) by Marijn Haverbeke and others
 // Distributed under an MIT license: http://codemirror.net/LICENSE
 
 // This is CodeMirror (http://codemirror.net), a code editor
@@ -6,3 +7,9 @@
 //
 // You can find some technical background for some of the code below
 // at http://marijnhaverbeke.nl/blog/#cm-internals .
+`,
+  entry: "src/codemirror.js",
+  format: "umd",
+  dest: "lib/codemirror.js",
+  moduleName: "CodeMirror"
+};