build: add package dependencies to Rollup external

rollup.config.js

@@ -4,23 +4,8 @@ import resolve from 'rollup-plugin-node-resolve'
 
 const pkg = require(path.resolve(process.cwd(), 'package.json'))
 
-const externalLibraries = [
-  'react',
-  'prop-types',
-  'eventemitter3',
-  'griffith-message',
-  'query-string',
-  'griffith-utils',
-  'isomorphic-bigscreen',
-  'element-resize-event',
-  /^aphrodite\//,
-  /^lodash\//,
-]
-
-const external = id =>
-  externalLibraries.some(name =>
-    name instanceof RegExp ? name.test(id) : name === id
-  )
+const deps = Object.keys({...pkg.dependencies, ...pkg.peerDependencies})
+const reExternal = new RegExp(`^(${deps.join('|')})($|/)`)
 
 export default [
   {
@@ -42,6 +27,6 @@ export default [
       // resolves `./directory` to `./directory/index.js`
       resolve({only: [/\/packages\/.*/]}),
     ],
-    external,
+    external: id => (deps.length ? reExternal.test(id) : false),
   },
 ]