pick up method order form .eslintrc if possible

package.json

@@ -26,5 +26,8 @@
     "testPathDirs": [
       "transforms/__tests__"
     ]
+  },
+  "devDependencies": {
+    "eslint-plugin-react": "^5.1.1"
   }
 }

transforms/__testfixtures__/custom-sort/.eslintrc

@@ -0,0 +1,11 @@
+---
+plugins:
+  - react
+rules:
+  no-undef: 0
+  no-unused-vars: 0
+  react/sort-comp:
+    - 0
+    - order:
+      - everything-else
+      - render

transforms/__testfixtures__/custom-sort/custom-sort.input.js

@@ -0,0 +1,21 @@
+var React = require('react/addons');
+
+// comment above createClass
+var MyComponent = React.createClass({
+  render: function() {
+    return <div />;
+  },
+
+  mixins: [PureRenderMixin],
+
+  // comment on componentDidMount
+  componentDidMount() {},
+
+  myOwnMethod(foo) {
+    // comment within method
+  },
+
+});
+
+/* comment at end */
+module.exports = MyComponent;

transforms/__testfixtures__/custom-sort/custom-sort.output.js

@@ -0,0 +1,21 @@
+var React = require('react/addons');
+
+// comment above createClass
+var MyComponent = React.createClass({
+  // comment on componentDidMount
+  componentDidMount() {},
+
+  mixins: [PureRenderMixin],
+
+  myOwnMethod(foo) {
+    // comment within method
+  },
+
+  render: function() {
+    return <div />;
+  },
+
+});
+
+/* comment at end */
+module.exports = MyComponent;

transforms/__tests__/custom-sort.js

@@ -0,0 +1,16 @@
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+
+'use strict';
+
+const defineTest = require('jscodeshift/dist/testUtils').defineTest;
+
+// The test fixtures for this are in their own dir so it can customize eslint.
+defineTest(__dirname, 'sort-comp', null, 'custom-sort/custom-sort');

transforms/sort-comp.js

@@ -36,7 +36,7 @@ module.exports = function(fileInfo, api, options) {
   const printOptions =
     options.printOptions || {quote: 'single', trailingComma: true};
 
-  const methodsOrder = options.methodsOrder || defaultMethodsOrder;
+  const methodsOrder = getMethodsOrder(fileInfo, options);
 
   const root = j(fileInfo.source);
 
@@ -173,3 +173,18 @@ function getCorrectIndex(methodsOrder, method) {
     return Infinity;
   }
 }
+
+function getMethodsOrderFromEslint(filePath) {
+  const CLIEngine = require('eslint').CLIEngine;
+  const cli = new CLIEngine({ useEslintrc: true });
+  const config = cli.getConfigForFile(filePath);
+  const {rules} = config;
+  const sortCompRules = rules['react/sort-comp'];
+  return sortCompRules && sortCompRules[1].order;
+}
+
+function getMethodsOrder(fileInfo, options) {
+  return options.methodsOrder
+    || getMethodsOrderFromEslint(fileInfo.path)
+    || defaultMethodsOrder;
+}