Add .editorconfig

Author: Christoph Werner

.editorconfig

@@ -0,0 +1,8 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_style = space
+indent_size = 2

lib/index.js

@@ -3,6 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
+exports.PatchError = undefined;
 
 exports.default = function (schema, opts) {
   var options = (0, _lodash.merge)({}, defaultOptions, opts);
@@ -31,13 +32,13 @@ exports.default = function (schema, opts) {
 
   // roll the document back to the state of a given patch id
   schema.methods.rollback = function (patchId, data) {
-    var _this = this;
+    var _this2 = this;
 
     return this.patches.find({ ref: this.id }).sort({ date: 1 }).exec().then(function (patches) {
       return new _bluebird2.default(function (resolve, reject) {
         // patch doesn't exist
         if (! ~(0, _lodash.map)(patches, 'id').indexOf(patchId)) {
-          return reject(new Error('patch doesn\'t exist'));
+          return reject(new PatchError('patch doesn\'t exist'));
         }
 
         // get all patches that should be applied
@@ -48,7 +49,7 @@ exports.default = function (schema, opts) {
         // if the patches that are going to be applied are all existing patches,
         // the rollback attempts to rollback to the latest patch
         if (patches.length === apply.length) {
-          return reject(new Error('rollback to latest patch'));
+          return reject(new PatchError('rollback to latest patch'));
         }
 
         // apply patches to `state`
@@ -58,7 +59,7 @@ exports.default = function (schema, opts) {
         });
 
         // save new state and resolve with the resulting document
-        _this.set((0, _lodash.merge)(data, state)).save().then(resolve).catch(reject);
+        _this2.set((0, _lodash.merge)(data, state)).save().then(resolve).catch(reject);
       });
     });
   };
@@ -100,7 +101,7 @@ exports.default = function (schema, opts) {
   // document has changed), a new patch document reflecting the changes is
   // added to the associated patch collection
   schema.pre('save', function (next) {
-    var _this2 = this;
+    var _this3 = this;
 
     var ref = this._id;
 
@@ -114,7 +115,7 @@ exports.default = function (schema, opts) {
     // assemble patch data
     var data = { ops: ops, ref: ref };
     (0, _lodash.each)(options.includes, function (type, name) {
-      data[name] = _this2[type.from || name];
+      data[name] = _this3[type.from || name];
     });
 
     this.patches.create(data).then(next).catch(next);
@@ -141,6 +142,29 @@ var _lodash = require('lodash');
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var PatchError = exports.PatchError = function (_Error) {
+  _inherits(PatchError, _Error);
+
+  function PatchError(message) {
+    _classCallCheck(this, PatchError);
+
+    var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(PatchError).call(this));
+
+    Error.captureStackTrace(_this, _this.constructor);
+    _this.name = _this.constructor.name;
+    _this.message = message;
+    return _this;
+  }
+
+  return PatchError;
+}(Error);
+
 var createPatchModel = function createPatchModel(options) {
   var def = {
     date: { type: Date, required: true, default: Date.now },