Refactor electron exports to keep module list in separate files

lib/common/api/exports/electron.js

@@ -1,53 +1,13 @@
+const moduleList = require('../module-list')
+
 // Attaches properties to |exports|.
 exports.defineProperties = function (exports) {
-  return Object.defineProperties(exports, {
-    // Common modules, please sort with alphabet order.
-    clipboard: {
-      // Must be enumerable, otherwise it woulde be invisible to remote module.
-      enumerable: true,
-      get: function () {
-        return require('../clipboard')
-      }
-    },
-    crashReporter: {
-      enumerable: true,
-      get: function () {
-        return require('../crash-reporter')
-      }
-    },
-    nativeImage: {
-      enumerable: true,
-      get: function () {
-        return require('../native-image')
-      }
-    },
-    shell: {
-      enumerable: true,
-      get: function () {
-        return require('../shell')
-      }
-    },
-
-    // The internal modules, invisible unless you know their names.
-    CallbacksRegistry: {
-      get: function () {
-        return require('../callbacks-registry')
-      }
-    },
-    deprecate: {
-      get: function () {
-        return require('../deprecate')
-      }
-    },
-    deprecations: {
-      get: function () {
-        return require('../deprecations')
-      }
-    },
-    isPromise: {
-      get: function () {
-        return require('../is-promise')
-      }
+  const descriptors = {}
+  for (const module of moduleList) {
+    descriptors[module.name] = {
+      enumerable: !module.private,
+      get: () => require(`../${module.file}`)
     }
-  })
+  }
+  return Object.defineProperties(exports, descriptors)
 }

lib/common/api/module-list.js

@@ -0,0 +1,12 @@
+// Common modules, please sort alphabetically
+module.exports = [
+  {name: 'clipboard', file: 'clipboard'},
+  {name: 'crashReporter', file: 'crash-reporter'},
+  {name: 'nativeImage', file: 'native-image'},
+  {name: 'shell', file: 'shell'},
+  // The internal modules, invisible unless you know their names.
+  {name: 'CallbacksRegistry', file: 'callbacks-registry', private: true},
+  {name: 'deprecate', file: 'deprecate', private: true},
+  {name: 'deprecations', file: 'deprecations', private: true},
+  {name: 'isPromise', file: 'is-promise', private: true}
+]