Bug 1203520 - We need a DevTools ESLint plugin containing our ruleset r=gps
authorMichael Ratcliffe <mratcliffe@mozilla.com>
Wed, 30 Sep 2015 14:44:48 +0100
changeset 286010 4fd815c46a675085b7bb23fdd1cd91bf875cda19
parent 286009 39a2036f52fbcedea134854fb84dbd18f51c8f2b
child 286011 9d83fd4e40db9ab9e09610e68575be85ddee4c93
push id5392
push userraliiev@mozilla.com
push dateMon, 14 Dec 2015 20:08:23 +0000
treeherdermozilla-esr52@16ce8562a975 [default view] [failures only]
perfherder[talos] [build metrics] [platform microbench] (compared to previous push)
reviewersgps
bugs1203520
milestone44.0a1
Bug 1203520 - We need a DevTools ESLint plugin containing our ruleset r=gps
.eslintrc
.gitignore
.hgignore
devtools/.eslintrc
devtools/.eslintrc.mochitests
devtools/client/animationinspector/animation-controller.js
devtools/client/animationinspector/components.js
devtools/client/framework/toolbox-hosts.js
devtools/client/framework/toolbox.js
devtools/client/layoutview/view.js
devtools/client/promisedebugger/promise-controller.js
devtools/client/shared/inplace-editor.js
devtools/client/shared/widgets/Tooltip.js
devtools/client/styleinspector/computed-view.js
devtools/client/styleinspector/rule-view.js
devtools/client/styleinspector/style-inspector-menu.js
devtools/client/styleinspector/style-inspector.js
devtools/client/styleinspector/utils.js
devtools/server/actors/inspector.js
devtools/server/actors/promises.js
devtools/server/actors/styles.js
devtools/shared/gcli/commands/highlight.js
devtools/shared/output-parser.js
devtools/shared/webconsole/network-monitor.js
python/mach_commands.py
testing/eslint-plugin-mozilla/LICENSE
testing/eslint-plugin-mozilla/docs/components-imports.rst
testing/eslint-plugin-mozilla/docs/import-headjs-globals.rst
testing/eslint-plugin-mozilla/docs/index.rst
testing/eslint-plugin-mozilla/docs/mark-test-function-used.rst
testing/eslint-plugin-mozilla/lib/helpers.js
testing/eslint-plugin-mozilla/lib/index.js
testing/eslint-plugin-mozilla/lib/rules/components-imports.js
testing/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js
testing/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js
testing/eslint-plugin-mozilla/moz.build
testing/eslint-plugin-mozilla/package.json
new file mode 100644
--- /dev/null
+++ b/.eslintrc
@@ -0,0 +1,5 @@
+{
+  "plugins": [
+    "mozilla"
+  ]
+}
--- a/.gitignore
+++ b/.gitignore
@@ -66,8 +66,11 @@ GRTAGS
 GSYMS
 GPATH
 
 # Git clone directory for updating web-platform-tests
 testing/web-platform/sync/
 
 # Android Gradle artifacts.
 mobile/android/gradle/.gradle
+
+# Ignore node_modules from eslint-plugin-mozilla
+testing/eslint-plugin-mozilla/node_modules/
--- a/.hgignore
+++ b/.hgignore
@@ -88,8 +88,11 @@ GPATH
 
 # XCode project cruft
 ^embedding/ios/GeckoEmbed/GeckoEmbed.xcodeproj/project.xcworkspace/xcuserdata
 ^embedding/ios/GeckoEmbed/GeckoEmbed.xcodeproj/xcuserdata
 
 # Ignore mozharness execution files
 ^testing/mozharness/logs/
 ^testing/mozharness/build/
+
+# Ignore node_modules from eslint-plugin-mozilla
+^testing/eslint-plugin-mozilla/node_modules/
--- a/devtools/.eslintrc
+++ b/devtools/.eslintrc
@@ -20,16 +20,21 @@
     "Task": true,
     "XPCNativeWrapper": true,
     "XPCOMUtils": true,
   },
   "rules": {
     // These are the rules that have been configured so far to match the
     // devtools coding style.
 
+    // Rules from the mozilla plugin
+    "mozilla/components-imports": 1,
+    "mozilla/import-headjs-globals": 1,
+    "mozilla/mark-test-function-used": 1,
+
     // Disallow using variables outside the blocks they are defined (especially
     // since only let and const are used, see "no-var").
     "block-scoped-var": 2,
     // Enforce one true brace style (opening brace on the same line) and avoid
     // start and end braces on the same line.
     "brace-style": [2, "1tbs", {"allowSingleLine": false}],
     // Require camel case names
     "camelcase": 2,
--- a/devtools/.eslintrc.mochitests
+++ b/devtools/.eslintrc.mochitests
@@ -1,26 +1,20 @@
 // Parent config file for all devtools browser mochitest files.
 {
   "rules": {
-    // Only disallow non-global unused vars, so that things like the test
-    // function do not produce errors.
-    "no-unused-vars": [2, {"vars": "local"}],
-    // Allow using undefined variables so that tests can refer to functions
-    // and variables defined in head.js files, without having to maintain a
-    // list of globals in each .eslintrc file.
-    // Note that bug 1168340 will eventually help auto-registering globals
-    // from head.js files.
-    "no-undef": 0,
-    "block-scoped-var": 0
+    // Only disallow non-global unused vars, so that head.js does not produce
+    // errors.
+    "no-unused-vars": [2, {"vars": "local"}]
   },
   // All globals made available in the test environment.
   "globals": {
     "add_task": true,
     "Assert": true,
+    "BrowserTestUtils": true,
     "content": true,
     "document": true,
     "EventUtils": true,
     "executeSoon": true,
     "export_assertions": true,
     "finish": true,
     "gBrowser": true,
     "gDevTools": true,
@@ -33,18 +27,17 @@
     "navigator": true,
     "ok": true,
     "promise": true,
     "registerCleanupFunction": true,
     "requestLongerTimeout": true,
     "setTimeout": true,
     "SimpleTest": true,
     "SpecialPowers": true,
-    "test": true,
     "todo": true,
     "todo_is": true,
     "todo_isnot": true,
     "waitForClipboard": true,
     "waitForExplicitFinish": true,
     "waitForFocus": true,
     "window": true,
   }
-}
\ No newline at end of file
+}
--- a/devtools/client/animationinspector/animation-controller.js
+++ b/devtools/client/animationinspector/animation-controller.js
@@ -1,15 +1,14 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals ViewHelpers, Task, AnimationsPanel, promise, EventEmitter,
-   AnimationsFront */
+/* globals AnimationsPanel */
 
 "use strict";
 
 const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
 
 Cu.import("resource://gre/modules/Task.jsm");
 var { loader, require } = Cu.import("resource://gre/modules/devtools/shared/Loader.jsm");
 Cu.import("resource://gre/modules/devtools/shared/Console.jsm");
--- a/devtools/client/animationinspector/components.js
+++ b/devtools/client/animationinspector/components.js
@@ -1,14 +1,13 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals ViewHelpers */
 
 "use strict";
 
 // Set of reusable UI components for the animation-inspector UI.
 // All components in this module share a common API:
 // 1. construct the component:
 //    let c = new ComponentName();
 // 2. initialize the markup of the component in a given parent node:
--- a/devtools/client/framework/toolbox-hosts.js
+++ b/devtools/client/framework/toolbox-hosts.js
@@ -1,12 +1,11 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals DOMHelpers, Services */
 
 "use strict";
 
 const {Cu} = require("chrome");
 const EventEmitter = require("devtools/shared/event-emitter");
 const promise = require("promise");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource:///modules/devtools/client/shared/DOMHelpers.jsm");
--- a/devtools/client/framework/toolbox.js
+++ b/devtools/client/framework/toolbox.js
@@ -1,14 +1,11 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals gDevTools, DOMHelpers, toolboxStrings, InspectorFront, Selection,
-   CommandUtils, DevToolsUtils, Hosts, osString, showDoorhanger,
-   getHighlighterUtils, createPerformanceFront */
 
 "use strict";
 
 const MAX_ORDINAL = 99;
 const ZOOM_PREF = "devtools.toolbox.zoomValue";
 const SPLITCONSOLE_ENABLED_PREF = "devtools.toolbox.splitconsoleEnabled";
 const SPLITCONSOLE_HEIGHT_PREF = "devtools.toolbox.splitconsoleHeight";
 const MIN_ZOOM = 0.5;
--- a/devtools/client/layoutview/view.js
+++ b/devtools/client/layoutview/view.js
@@ -1,14 +1,13 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals ViewHelpers, window, document */
 
 "use strict";
 
 const {utils: Cu, interfaces: Ci, classes: Cc} = Components;
 
 Cu.import("resource://gre/modules/Task.jsm");
 const {require} = Cu.import("resource://gre/modules/devtools/shared/Loader.jsm", {});
 Cu.import("resource://gre/modules/devtools/shared/Console.jsm");
--- a/devtools/client/promisedebugger/promise-controller.js
+++ b/devtools/client/promisedebugger/promise-controller.js
@@ -1,15 +1,15 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* global promise, PromisesPanel, PromisesFront, DevToolsUtils */
+/* global PromisesPanel */
 
 "use strict";
 
 const { utils: Cu } = Components;
 const { loader, require } =
   Cu.import("resource://gre/modules/devtools/shared/Loader.jsm", {});
 
 const { Task } = require("resource://gre/modules/Task.jsm");
--- a/devtools/client/shared/inplace-editor.js
+++ b/devtools/client/shared/inplace-editor.js
@@ -1,16 +1,14 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* globals focusManager, CSSPropertyList, domUtils */
-
 /**
  * Basic use:
  * let spanToEdit = document.getElementById("somespan");
  *
  * editableField({
  *   element: spanToEdit,
  *   done: function(value, commit, direction) {
  *     if (commit) {
--- a/devtools/client/shared/widgets/Tooltip.js
+++ b/devtools/client/shared/widgets/Tooltip.js
@@ -1,17 +1,14 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 "use strict";
 
-/* globals beautify, setNamedTimeout, clearNamedTimeout, VariablesView,
-   VariablesViewController, Task */
-
 const {Cu, Ci} = require("chrome");
 const promise = require("promise");
 const {Spectrum} = require("devtools/client/shared/widgets/Spectrum");
 const {CubicBezierWidget} =
       require("devtools/client/shared/widgets/CubicBezierWidget");
 const {MdnDocsWidget} = require("devtools/client/shared/widgets/MdnDocsWidget");
 const {CSSFilterEditorWidget} = require("devtools/client/shared/widgets/FilterWidget");
 const EventEmitter = require("devtools/shared/event-emitter");
--- a/devtools/client/styleinspector/computed-view.js
+++ b/devtools/client/styleinspector/computed-view.js
@@ -1,16 +1,15 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* globals overlays, StyleInspectorMenu, loader, clipboardHelper,
-  _Iterator, StopIteration */
+/* globals _Iterator, StopIteration */
 
 "use strict";
 
 const {Cc, Ci, Cu} = require("chrome");
 
 const ToolDefinitions = require("devtools/client/main").Tools;
 const {CssLogic} = require("devtools/shared/styleinspector/css-logic");
 const {ELEMENT_STYLE} = require("devtools/server/actors/styles");
--- a/devtools/client/styleinspector/rule-view.js
+++ b/devtools/client/styleinspector/rule-view.js
@@ -1,18 +1,14 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* globals overlays, Services, EventEmitter, StyleInspectorMenu,
-   clipboardHelper, _strings, domUtils, AutocompletePopup, loader,
-   osString */
-
 "use strict";
 
 const {Cc, Ci, Cu} = require("chrome");
 const promise = require("promise");
 const {setTimeout, clearTimeout} =
       Cu.import("resource://gre/modules/Timer.jsm", {});
 const {CssLogic} = require("devtools/shared/styleinspector/css-logic");
 const {InplaceEditor, editableField, editableItem} =
--- a/devtools/client/styleinspector/style-inspector-menu.js
+++ b/devtools/client/styleinspector/style-inspector-menu.js
@@ -1,16 +1,14 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* globals overlays, Services, clipboardHelper, _strings */
-
 "use strict";
 
 const {Cc, Ci, Cu} = require("chrome");
 const {PREF_ORIG_SOURCES} = require("devtools/client/styleeditor/utils");
 
 loader.lazyRequireGetter(this, "overlays",
   "devtools/client/styleinspector/style-inspector-overlays");
 loader.lazyImporter(this, "Services", "resource://gre/modules/Services.jsm");
--- a/devtools/client/styleinspector/style-inspector.js
+++ b/devtools/client/styleinspector/style-inspector.js
@@ -1,16 +1,14 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* globals RuleView, ComputedView, gDevTools */
-
 "use strict";
 
 const {Cc, Cu, Ci} = require("chrome");
 const promise = require("promise");
 const {Tools} = require("devtools/client/main");
 Cu.import("resource://gre/modules/Services.jsm");
 const {PREF_ORIG_SOURCES} = require("devtools/client/styleeditor/utils");
 
--- a/devtools/client/styleinspector/utils.js
+++ b/devtools/client/styleinspector/utils.js
@@ -1,16 +1,14 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* global domUtils */
-
 "use strict";
 
 const {Cc, Ci, Cu} = require("chrome");
 const {setTimeout, clearTimeout} =
       Cu.import("resource://gre/modules/Timer.jsm", {});
 const {parseDeclarations} =
       require("devtools/client/styleinspector/css-parsing-utils");
 const promise = require("promise");
--- a/devtools/server/actors/inspector.js
+++ b/devtools/server/actors/inspector.js
@@ -1,12 +1,11 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals DevToolsUtils, DOMParser, eventListenerService, CssLogic */
 
 "use strict";
 
 /**
  * Here's the server side of the remote inspector.
  *
  * The WalkerActor is the client's view of the debuggee's DOM.  It's gives
  * the client a tree of NodeActor objects.
@@ -994,17 +993,19 @@ var NodeFront = protocol.FrontClass(Node
   getFormProperty: function(name) {
     return this._form.props ? this._form.props[name] : null;
   },
 
   hasFormProperty: function(name) {
     return this._form.props ? (name in this._form.props) : null;
   },
 
-  get formProperties() this._form.props,
+  get formProperties() {
+    return this._form.props
+  },
 
   /**
    * Return a new AttributeModificationList for this node.
    */
   startModifyingAttributes: function() {
     return AttributeModificationList(this);
   },
 
--- a/devtools/server/actors/promises.js
+++ b/devtools/server/actors/promises.js
@@ -7,18 +7,16 @@
 const protocol = require("devtools/server/protocol");
 const { method, RetVal, Arg, types } = protocol;
 const { expectState, ActorPool } = require("devtools/server/actors/common");
 const { ObjectActor,
         createValueGrip } = require("devtools/server/actors/object");
 const DevToolsUtils = require("devtools/shared/DevToolsUtils");
 loader.lazyRequireGetter(this, "events", "sdk/event/core");
 
-/* global events */
-
 // Teach protocol.js how to deal with legacy actor types
 types.addType("ObjectActor", {
   write: actor => actor.grip(),
   read: grip => grip
 });
 
 /**
  * The Promises Actor provides support for getting the list of live promises and
--- a/devtools/server/actors/styles.js
+++ b/devtools/server/actors/styles.js
@@ -1,12 +1,12 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals CssLogic, DOMUtils, CSS */
+/* globals CSS */
 
 "use strict";
 
 const {Cc, Ci, Cu} = require("chrome");
 const promise = require("promise");
 const protocol = require("devtools/server/protocol");
 const {Arg, Option, method, RetVal, types} = protocol;
 const events = require("sdk/event/core");
--- a/devtools/shared/gcli/commands/highlight.js
+++ b/devtools/shared/gcli/commands/highlight.js
@@ -1,12 +1,11 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals nodesSelected, PluralForm */
 
 "use strict";
 
 const l10n = require("gcli/l10n");
 require("devtools/server/actors/inspector");
 const {
   BoxModelHighlighter,
   HighlighterEnvironment
--- a/devtools/shared/output-parser.js
+++ b/devtools/shared/output-parser.js
@@ -1,14 +1,12 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-/* globals DOMUtils */
-
 "use strict";
 
 const {Cc, Ci, Cu} = require("chrome");
 const {colorUtils} = require("devtools/shared/css-color");
 const {Services} = Cu.import("resource://gre/modules/Services.jsm", {});
 
 const HTML_NS = "http://www.w3.org/1999/xhtml";
 
--- a/devtools/shared/webconsole/network-monitor.js
+++ b/devtools/shared/webconsole/network-monitor.js
@@ -1,13 +1,11 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* globals NetworkHelper, Services, DevToolsUtils, NetUtil,
-   gActivityDistributor */
 
 "use strict";
 
 const {Cc, Ci, Cu, Cr} = require("chrome");
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 
 loader.lazyRequireGetter(this, "NetworkHelper",
--- a/python/mach_commands.py
+++ b/python/mach_commands.py
@@ -3,39 +3,71 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 from __future__ import absolute_import, print_function, unicode_literals
 
 import argparse
 import logging
 import mozpack.path as mozpath
 import os
+import platform
+import subprocess
+import sys
 import which
 
 from mozbuild.base import (
     MachCommandBase,
 )
 
 from mach.decorators import (
     CommandArgument,
     CommandProvider,
     Command,
 )
 
-
 ESLINT_NOT_FOUND_MESSAGE = '''
 Could not find eslint!  We looked at the --binary option, at the ESLINT
 environment variable, and then at your path.  Install eslint and needed plugins
 with
 
-npm install -g eslint eslint-plugin-react
+mach eslint --setup
 
 and try again.
 '''.strip()
 
+NODE_NOT_FOUND_MESSAGE = '''
+nodejs is either not installed or is installed to a non-standard path.
+Please install nodejs from https://nodejs.org and try again.
+
+Valid installation paths:
+'''.strip()
+
+NPM_NOT_FOUND_MESSAGE = '''
+Node Package Manager (npm) is either not installed or installed to a
+non-standard path. Please install npm from https://nodejs.org (it comes as an
+option in the node installation) and try again.
+
+Valid installation paths:
+'''.strip()
+
+ESLINT_PROMPT = '''
+Would you like to use eslint
+'''.strip()
+
+ESLINT_PLUGIN_MOZILLA_PROMPT = '''
+eslint-plugin-mozilla is an eslint plugin containing rules that help enforce
+JavaScript coding standards in the Mozilla project. Would you like to use this
+plugin
+'''.strip()
+
+ESLINT_PLUGIN_REACT_PROMPT = '''
+eslint-plugin-react is an eslint plugin containing rules that help React
+developers follow strict guidelines. Would you like to install it
+'''.strip()
+
 
 @CommandProvider
 class MachCommands(MachCommandBase):
     @Command('python', category='devenv',
         description='Run Python.')
     @CommandArgument('args', nargs=argparse.REMAINDER)
     def python(self, args):
         # Avoid logging the command
@@ -127,29 +159,35 @@ class MachCommands(MachCommandBase):
                 else:
                     self.log(logging.INFO, 'python-test', {'file': f},
                              'Test passed: {file}')
             if stop and return_code > 0:
                 return 1
 
         return 0 if return_code == 0 else 1
 
-    @Command('eslint', category='devenv')
+    @Command('eslint', category='devenv',
+        description='Run eslint or help configure eslint for optimal development.')
+    @CommandArgument('-s', '--setup', default=False, action='store_true',
+        help='configure eslint for optimal development.')
     @CommandArgument('path', nargs='?', default='.',
         help='Path to files to lint, like "browser/components/loop" '
             'or "mobile/android". '
             'Defaults to the current directory if not given.')
     @CommandArgument('-e', '--ext', default='[.js,.jsm,.jsx]',
         help='Filename extensions to lint, default: "[.js,.jsm,.jsx]".')
     @CommandArgument('-b', '--binary', default=None,
         help='Path to eslint binary.')
     @CommandArgument('args', nargs=argparse.REMAINDER)  # Passed through to eslint.
-    def eslint(self, path, ext=None, binary=None, args=[]):
+    def eslint(self, setup, path, ext=None, binary=None, args=[]):
         '''Run eslint.'''
 
+        if setup:
+            return self.eslint_setup()
+
         if not binary:
             binary = os.environ.get('ESLINT', None)
             if not binary:
                 try:
                     binary = which.which('eslint')
                 except which.WhichError:
                     pass
 
@@ -177,8 +215,105 @@ class MachCommands(MachCommandBase):
         # Path must come after arguments.  Path is '.' due to cwd below.
         cmd_args += ['.']
 
         return self.run_process(cmd_args,
             cwd=path,
             pass_thru=True,  # Allow user to run eslint interactively.
             ensure_exit_code=False,  # Don't throw on non-zero exit code.
         )
+    def eslint_setup(self, update_only=False):
+        """Ensure eslint is optimally configured.
+
+        This command will inspect your eslint configuration and
+        guide you through an interactive wizard helping you configure
+        eslint for optimal use on Mozilla projects.
+        """
+        sys.path.append(os.path.dirname(__file__))
+
+        # At the very least we need node installed.
+        nodePath = self.getNodeOrNpmPath("node")
+        if not nodePath:
+            return 1
+
+        npmPath = self.getNodeOrNpmPath("npm")
+        if not npmPath:
+            return 1
+
+        # Install eslint.
+        print("Installing eslint...")
+        with open(os.devnull, "w") as fnull:
+            subprocess.call([npmPath, "install", "eslint", "-g"],
+                            stdout=fnull, stderr=fnull)
+
+        # Install eslint-plugin-mozilla.
+        print("")
+        print("Installing eslint-plugin-mozilla...")
+        with open(os.devnull, "w") as fnull:
+            subprocess.call([npmPath, "link"],
+                            cwd="testing/eslint-plugin-mozilla",
+                            stdout=fnull, stderr=fnull)
+
+        # Install eslint-plugin-react.
+        print("")
+        print("Installing eslint-plugin-react...")
+        with open(os.devnull, "w") as fnull:
+            subprocess.call([npmPath, "install", "-g", "eslint-plugin-react"],
+                            stdout=fnull, stderr=fnull)
+
+    def getPossibleNodePathsWin(self):
+        """
+        Return possible nodejs paths on Windows.
+        """
+        if platform.system() != "Windows":
+            return []
+
+        return {
+            "%s\\nodejs" % os.environ.get("SystemDrive"),
+            os.path.join(os.environ.get("ProgramFiles"), "nodejs"),
+            os.path.join(os.environ.get("PROGRAMW6432"), "nodejs"),
+            os.path.join(os.environ.get("PROGRAMFILES"), "nodejs")
+        }
+
+    def getNodeOrNpmPath(self, filename):
+        """
+        Return the nodejs or npm path.
+        """
+        try:
+            appPath = which.which(filename)
+            return appPath
+        except which.WhichError:
+            pass
+
+        if platform.system() == "Windows":
+            try:
+                for ext in ["", ".cmd", ".exe"]:
+                    nodeOrNpmPath = which.which(filename + ext,
+                                                path=self.getPossibleNodePathsWin())
+                    if self.is_valid(nodeOrNpmPath):
+                        return nodeOrNpmPath
+            except which.WhichError:
+                pass
+
+        if filename == "node":
+            print(NODE_NOT_FOUND_MESSAGE)
+        elif filename == "npm":
+            print(NPM_NOT_FOUND_MESSAGE)
+
+        if platform.system() == "Windows":
+            appPaths = self.getPossibleNodePathsWin()
+
+            for p in appPaths:
+                print("  - " + p)
+        elif platform.system() == "Darwin":
+            print("  - /usr/local/bin/node")
+        elif platform.system() == "Linux":
+            print("  - /usr/bin/nodejs")
+
+        return None
+
+    def is_valid(self, path):
+        try:
+            with open(os.devnull, "w") as fnull:
+                subprocess.check_call([path, "--version"], stdout=fnull)
+                return True
+        except subprocess.CalledProcessError:
+            return False
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/LICENSE
@@ -0,0 +1,363 @@
+Mozilla Public License, version 2.0
+
+1. Definitions
+
+1.1. "Contributor"
+
+     means each individual or legal entity that creates, contributes to the
+     creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+
+     means the combination of the Contributions of others (if any) used by a
+     Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+
+     means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+
+     means Source Code Form to which the initial Contributor has attached the
+     notice in Exhibit A, the Executable Form of such Source Code Form, and
+     Modifications of such Source Code Form, in each case including portions
+     thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+     means
+
+     a. that the initial Contributor has attached the notice described in
+        Exhibit B to the Covered Software; or
+
+     b. that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the terms of
+        a Secondary License.
+
+1.6. "Executable Form"
+
+     means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+
+     means a work that combines Covered Software with other material, in a
+     separate file or files, that is not Covered Software.
+
+1.8. "License"
+
+     means this document.
+
+1.9. "Licensable"
+
+     means having the right to grant, to the maximum extent possible, whether
+     at the time of the initial grant or subsequently, any and all of the
+     rights conveyed by this License.
+
+1.10. "Modifications"
+
+     means any of the following:
+
+     a. any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered Software; or
+
+     b. any new file in Source Code Form that contains any Covered Software.
+
+1.11. "Patent Claims" of a Contributor
+
+      means any patent claim(s), including without limitation, method,
+      process, and apparatus claims, in any patent Licensable by such
+      Contributor that would be infringed, but for the grant of the License,
+      by the making, using, selling, offering for sale, having made, import,
+      or transfer of either its Contributions or its Contributor Version.
+
+1.12. "Secondary License"
+
+      means either the GNU General Public License, Version 2.0, the GNU Lesser
+      General Public License, Version 2.1, the GNU Affero General Public
+      License, Version 3.0, or any later versions of those licenses.
+
+1.13. "Source Code Form"
+
+      means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+
+      means an individual or a legal entity exercising rights under this
+      License. For legal entities, "You" includes any entity that controls, is
+      controlled by, or is under common control with You. For purposes of this
+      definition, "control" means (a) the power, direct or indirect, to cause
+      the direction or management of such entity, whether by contract or
+      otherwise, or (b) ownership of more than fifty percent (50%) of the
+      outstanding shares or beneficial ownership of such entity.
+
+
+2. License Grants and Conditions
+
+2.1. Grants
+
+     Each Contributor hereby grants You a world-wide, royalty-free,
+     non-exclusive license:
+
+     a. under intellectual property rights (other than patent or trademark)
+        Licensable by such Contributor to use, reproduce, make available,
+        modify, display, perform, distribute, and otherwise exploit its
+        Contributions, either on an unmodified basis, with Modifications, or
+        as part of a Larger Work; and
+
+     b. under Patent Claims of such Contributor to make, use, sell, offer for
+        sale, have made, import, and otherwise transfer either its
+        Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+     The licenses granted in Section 2.1 with respect to any Contribution
+     become effective for each Contribution on the date the Contributor first
+     distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+     The licenses granted in this Section 2 are the only rights granted under
+     this License. No additional rights or licenses will be implied from the
+     distribution or licensing of Covered Software under this License.
+     Notwithstanding Section 2.1(b) above, no patent license is granted by a
+     Contributor:
+
+     a. for any code that a Contributor has removed from Covered Software; or
+
+     b. for infringements caused by: (i) Your and any other third party's
+        modifications of Covered Software, or (ii) the combination of its
+        Contributions with other software (except as part of its Contributor
+        Version); or
+
+     c. under Patent Claims infringed by Covered Software in the absence of
+        its Contributions.
+
+     This License does not grant any rights in the trademarks, service marks,
+     or logos of any Contributor (except as may be necessary to comply with
+     the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+     No Contributor makes additional grants as a result of Your choice to
+     distribute the Covered Software under a subsequent version of this
+     License (see Section 10.2) or under the terms of a Secondary License (if
+     permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+     Each Contributor represents that the Contributor believes its
+     Contributions are its original creation(s) or it has sufficient rights to
+     grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+     This License is not intended to limit any rights You have under
+     applicable copyright doctrines of fair use, fair dealing, or other
+     equivalents.
+
+2.7. Conditions
+
+     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
+     Section 2.1.
+
+
+3. Responsibilities
+
+3.1. Distribution of Source Form
+
+     All distribution of Covered Software in Source Code Form, including any
+     Modifications that You create or to which You contribute, must be under
+     the terms of this License. You must inform recipients that the Source
+     Code Form of the Covered Software is governed by the terms of this
+     License, and how they can obtain a copy of this License. You may not
+     attempt to alter or restrict the recipients' rights in the Source Code
+     Form.
+
+3.2. Distribution of Executable Form
+
+     If You distribute Covered Software in Executable Form then:
+
+     a. such Covered Software must also be made available in Source Code Form,
+        as described in Section 3.1, and You must inform recipients of the
+        Executable Form how they can obtain a copy of such Source Code Form by
+        reasonable means in a timely manner, at a charge no more than the cost
+        of distribution to the recipient; and
+
+     b. You may distribute such Executable Form under the terms of this
+        License, or sublicense it under different terms, provided that the
+        license for the Executable Form does not attempt to limit or alter the
+        recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+     You may create and distribute a Larger Work under terms of Your choice,
+     provided that You also comply with the requirements of this License for
+     the Covered Software. If the Larger Work is a combination of Covered
+     Software with a work governed by one or more Secondary Licenses, and the
+     Covered Software is not Incompatible With Secondary Licenses, this
+     License permits You to additionally distribute such Covered Software
+     under the terms of such Secondary License(s), so that the recipient of
+     the Larger Work may, at their option, further distribute the Covered
+     Software under the terms of either this License or such Secondary
+     License(s).
+
+3.4. Notices
+
+     You may not remove or alter the substance of any license notices
+     (including copyright notices, patent notices, disclaimers of warranty, or
+     limitations of liability) contained within the Source Code Form of the
+     Covered Software, except that You may alter any license notices to the
+     extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+     You may choose to offer, and to charge a fee for, warranty, support,
+     indemnity or liability obligations to one or more recipients of Covered
+     Software. However, You may do so only on Your own behalf, and not on
+     behalf of any Contributor. You must make it absolutely clear that any
+     such warranty, support, indemnity, or liability obligation is offered by
+     You alone, and You hereby agree to indemnify every Contributor for any
+     liability incurred by such Contributor as a result of warranty, support,
+     indemnity or liability terms You offer. You may include additional
+     disclaimers of warranty and limitations of liability specific to any
+     jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+
+   If it is impossible for You to comply with any of the terms of this License
+   with respect to some or all of the Covered Software due to statute,
+   judicial order, or regulation then You must: (a) comply with the terms of
+   this License to the maximum extent possible; and (b) describe the
+   limitations and the code they affect. Such description must be placed in a
+   text file included with all distributions of the Covered Software under
+   this License. Except to the extent prohibited by statute or regulation,
+   such description must be sufficiently detailed for a recipient of ordinary
+   skill to be able to understand it.
+
+5. Termination
+
+5.1. The rights granted under this License will terminate automatically if You
+     fail to comply with any of its terms. However, if You become compliant,
+     then the rights granted under this License from a particular Contributor
+     are reinstated (a) provisionally, unless and until such Contributor
+     explicitly and finally terminates Your grants, and (b) on an ongoing
+     basis, if such Contributor fails to notify You of the non-compliance by
+     some reasonable means prior to 60 days after You have come back into
+     compliance. Moreover, Your grants from a particular Contributor are
+     reinstated on an ongoing basis if such Contributor notifies You of the
+     non-compliance by some reasonable means, this is the first time You have
+     received notice of non-compliance with this License from such
+     Contributor, and You become compliant prior to 30 days after Your receipt
+     of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+     infringement claim (excluding declaratory judgment actions,
+     counter-claims, and cross-claims) alleging that a Contributor Version
+     directly or indirectly infringes any patent, then the rights granted to
+     You by any and all Contributors for the Covered Software under Section
+     2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
+     license agreements (excluding distributors and resellers) which have been
+     validly granted by You or Your distributors under this License prior to
+     termination shall survive termination.
+
+6. Disclaimer of Warranty
+
+   Covered Software is provided under this License on an "as is" basis,
+   without warranty of any kind, either expressed, implied, or statutory,
+   including, without limitation, warranties that the Covered Software is free
+   of defects, merchantable, fit for a particular purpose or non-infringing.
+   The entire risk as to the quality and performance of the Covered Software
+   is with You. Should any Covered Software prove defective in any respect,
+   You (not any Contributor) assume the cost of any necessary servicing,
+   repair, or correction. This disclaimer of warranty constitutes an essential
+   part of this License. No use of  any Covered Software is authorized under
+   this License except under this disclaimer.
+
+7. Limitation of Liability
+
+   Under no circumstances and under no legal theory, whether tort (including
+   negligence), contract, or otherwise, shall any Contributor, or anyone who
+   distributes Covered Software as permitted above, be liable to You for any
+   direct, indirect, special, incidental, or consequential damages of any
+   character including, without limitation, damages for lost profits, loss of
+   goodwill, work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses, even if such party shall have been
+   informed of the possibility of such damages. This limitation of liability
+   shall not apply to liability for death or personal injury resulting from
+   such party's negligence to the extent applicable law prohibits such
+   limitation. Some jurisdictions do not allow the exclusion or limitation of
+   incidental or consequential damages, so this exclusion and limitation may
+   not apply to You.
+
+8. Litigation
+
+   Any litigation relating to this License may be brought only in the courts
+   of a jurisdiction where the defendant maintains its principal place of
+   business and such litigation shall be governed by laws of that
+   jurisdiction, without reference to its conflict-of-law provisions. Nothing
+   in this Section shall prevent a party's ability to bring cross-claims or
+   counter-claims.
+
+9. Miscellaneous
+
+   This License represents the complete agreement concerning the subject
+   matter hereof. If any provision of this License is held to be
+   unenforceable, such provision shall be reformed only to the extent
+   necessary to make it enforceable. Any law or regulation which provides that
+   the language of a contract shall be construed against the drafter shall not
+   be used to construe this License against a Contributor.
+
+
+10. Versions of the License
+
+10.1. New Versions
+
+      Mozilla Foundation is the license steward. Except as provided in Section
+      10.3, no one other than the license steward has the right to modify or
+      publish new versions of this License. Each version will be given a
+      distinguishing version number.
+
+10.2. Effect of New Versions
+
+      You may distribute the Covered Software under the terms of the version
+      of the License under which You originally received the Covered Software,
+      or under the terms of any subsequent version published by the license
+      steward.
+
+10.3. Modified Versions
+
+      If you create software not governed by this License, and you want to
+      create a new license for such software, you may create and use a
+      modified version of this License if you rename the license and remove
+      any references to the name of the license steward (except to note that
+      such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+      Licenses If You choose to distribute Source Code Form that is
+      Incompatible With Secondary Licenses under the terms of this version of
+      the License, the notice described in Exhibit B of this License must be
+      attached.
+
+Exhibit A - Source Code Form License Notice
+
+      This Source Code Form is subject to the
+      terms of the Mozilla Public License, v.
+      2.0. If a copy of the MPL was not
+      distributed with this file, You can
+      obtain one at
+      http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular file,
+then You may include the notice in a location (such as a LICENSE file in a
+relevant directory) where a recipient would be likely to look for such a
+notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+
+      This Source Code Form is "Incompatible
+      With Secondary Licenses", as defined by
+      the Mozilla Public License, v. 2.0.
+
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/docs/components-imports.rst
@@ -0,0 +1,21 @@
+.. _components-imports:
+
+==================
+components-imports
+==================
+
+Rule Details
+------------
+
+Adds the filename of imported files e.g.
+``Cu.import("some/path/Blah.jsm")`` adds Blah to the global scope.
+
+The following patterns are supported:
+
+-  ``Cu.import("resource:///modules/devtools/ViewHelpers.jsm");``
+-  ``loader.lazyImporter(this, "name1");``
+-  ``loader.lazyRequireGetter(this, "name2"``
+-  ``loader.lazyServiceGetter(this, "name3"``
+-  ``XPCOMUtils.defineLazyModuleGetter(this, "setNamedTimeout", ...)``
+-  ``loader.lazyGetter(this, "toolboxStrings"``
+-  ``XPCOMUtils.defineLazyGetter(this, "clipboardHelper"``
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/docs/import-headjs-globals.rst
@@ -0,0 +1,31 @@
+.. _import-headjs-globals:
+
+=====================
+import-headjs-globals
+=====================
+
+Rule Details
+------------
+
+Import globals from head.js and from any files that were imported by
+head.js (as far as we can correctly resolve the path).
+
+The following file import patterns are supported:
+
+-  ``Services.scriptloader.loadSubScript(path)``
+-  ``loader.loadSubScript(path)``
+-  ``loadSubScript(path)``
+-  ``loadHelperScript(path)``
+
+If path does not exist because it is generated e.g.
+``testdir + "/somefile.js"`` we do our best to resolve it.
+
+The following patterns are supported:
+
+-  ``Cu.import("resource:///modules/devtools/ViewHelpers.jsm");``
+-  ``loader.lazyImporter(this, "name1");``
+-  ``loader.lazyRequireGetter(this, "name2"``
+-  ``loader.lazyServiceGetter(this, "name3"``
+-  ``XPCOMUtils.defineLazyModuleGetter(this, "setNamedTimeout", ...)``
+-  ``loader.lazyGetter(this, "toolboxStrings"``
+-  ``XPCOMUtils.defineLazyGetter(this, "clipboardHelper"``
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/docs/index.rst
@@ -0,0 +1,41 @@
+.. _index:
+
+=====================
+Mozilla ESLint Plugin
+=====================
+
+``components-imports`` adds the filename of imported files e.g.
+``Cu.import("some/path/Blah.jsm")`` adds Blah to the global scope.
+
+``import-headjs-globals`` imports globals from head.js and from any files that
+should be imported by head.js (as far as we can correctly resolve the path).
+
+``mark-test-function-used`` simply marks test (the test method) as used. This
+avoids ESLint telling us that the function is never called.
+
++-------+-----------------------+
+| Possible values for all rules |
++-------+-----------------------+
+| Value | Meaning               |
++-------+-----------------------+
+| 0     | Deactivated           |
++-------+-----------------------+
+| 1     | Warning               |
++-------+-----------------------+
+| 2     | Error                 |
++-------+-----------------------+
+
+Example configuration::
+
+   "rules": {
+     "mozilla/components-imports": 1,
+     "mozilla/import-headjs-globals": 1,
+     "mozilla/mark-test-function-used": 1,
+   }
+
+.. toctree::
+   :maxdepth: 1
+
+   components-imports
+   import-headjs-globals
+   mark-test-function-used
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/docs/mark-test-function-used.rst
@@ -0,0 +1,11 @@
+.. _mark-test-function-used:
+
+=======================
+mark-test-function-used
+=======================
+
+Rule Details
+------------
+
+Simply marks test (the test method) as used. This avoids ESLint telling
+us that the function is never called.
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/lib/helpers.js
@@ -0,0 +1,193 @@
+/**
+ * @fileoverview A collection of helper functions.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+"use strict";
+
+var escope = require("eslint/node_modules/escope");
+var espree = require("eslint/node_modules/espree");
+
+var regexes = [
+  /^(?:Cu|Components\.utils)\.import\(".*\/(.*?)\.jsm?"\);?$/,
+  /^loader\.lazyImporter\(\w+, "(\w+)"/,
+  /^loader\.lazyRequireGetter\(\w+, "(\w+)"/,
+  /^loader\.lazyServiceGetter\(\w+, "(\w+)"/,
+  /^XPCOMUtils\.defineLazyModuleGetter\(\w+, "(\w+)"/,
+  /^loader\.lazyGetter\(\w+, "(\w+)"/,
+  /^XPCOMUtils\.defineLazyGetter\(\w+, "(\w+)"/
+];
+
+module.exports = {
+  /**
+   * Gets the abstract syntax tree (AST) of the JavaScript source code contained
+   * in sourceText.
+   *
+   * @param  {String} sourceText
+   *         Text containing valid JavaScript.
+   *
+   * @return {Object}
+   *         The resulting AST.
+   */
+  getAST: function(sourceText) {
+    // Use a permissive config file to allow parsing of anything that Espree
+    // can parse.
+    var config = this.getPermissiveConfig();
+
+    return espree.parse(sourceText, config);
+  },
+
+  /**
+   * Gets the source text of an AST node.
+   *
+   * @param  {ASTNode} node
+   *         The AST node representing the source text.
+   * @param  {ASTContext} context
+   *         The current context.
+   *
+   * @return {String}
+   *         The source text representing the AST node.
+   */
+  getSource: function(node, context) {
+    return context.getSource(node).replace(/[\r\n]+\s*/g, " ")
+                                  .replace(/\s*=\s*/g, " = ")
+                                  .replace(/\s+\./g, ".")
+                                  .replace(/,\s+/g, ", ")
+                                  .replace(/;\n(\d+)/g, ";$1")
+                                  .replace(/\s+/g, " ");
+  },
+
+  /**
+   * Gets the variable name from an import source
+   * e.g. Cu.import("path/to/someName") will return "someName."
+   *
+   * Some valid input strings:
+   *  - Cu.import("resource:///modules/devtools/ViewHelpers.jsm");
+   *  - loader.lazyImporter(this, "name1");
+   *  - loader.lazyRequireGetter(this, "name2"
+   *  - loader.lazyServiceGetter(this, "name3"
+   *  - XPCOMUtils.defineLazyModuleGetter(this, "setNamedTimeout", ...)
+   *  - loader.lazyGetter(this, "toolboxStrings"
+   *  - XPCOMUtils.defineLazyGetter(this, "clipboardHelper"
+   *
+   * @param  {String} source
+   *         The source representing an import statement.
+   *
+   * @return {String}
+   *         The variable name imported.
+   */
+  getVarNameFromImportSource: function(source) {
+    for (var i = 0; i < regexes.length; i++) {
+      var regex = regexes[i];
+      var matches = source.match(regex);
+
+      if (matches) {
+        var name = matches[1];
+
+        return name;
+      }
+    }
+  },
+
+  /**
+   * Get an array of globals from an AST.
+   *
+   * @param  {Object} ast
+   *         The AST for which the globals are to be returned.
+   *
+   * @return {Array}
+   *         An array of variable names.
+   */
+  getGlobals: function(ast) {
+    var scopeManager = escope.analyze(ast);
+    var globalScope = scopeManager.acquire(ast);
+    var result = [];
+
+    for (var variable in globalScope.variables) {
+      var name = globalScope.variables[variable].name;
+      result.push(name);
+    }
+
+    return result;
+  },
+
+  /**
+   * Add a variable to the current scope.
+   * HACK: This relies on eslint internals so it could break at any time.
+   *
+   * @param {String} name
+   *        The variable name to add to the current scope.
+   * @param {ASTContext} context
+   *        The current context.
+   */
+  addVarToScope: function(name, context) {
+    var scope = context.getScope();
+    var variables = scope.variables;
+    var variable = new escope.Variable(name, scope);
+
+    variable.eslintExplicitGlobal = false;
+    variable.writeable = true;
+    variables.push(variable);
+  },
+
+  /**
+   * Get the single line text represented by a particular AST node.
+   *
+   * @param  {ASTNode} node
+   *         The AST node representing the source text.
+   * @param  {String} text
+   *         The text representing the AST node.
+   *
+   * @return {String}
+   *         A single line version of the string represented by node.
+   */
+  getTextForNode: function(node, text) {
+    var source = text.substr(node.range[0], node.range[1] - node.range[0]);
+
+    return source.replace(/[\r\n]+\s*/g, "")
+                 .replace(/\s*=\s*/g, " = ")
+                 .replace(/\s+\./g, ".")
+                 .replace(/,\s+/g, ", ")
+                 .replace(/;\n(\d+)/g, ";$1");
+  },
+
+  /**
+   * To allow espree to parse almost any JavaScript we need as many features as
+   * possible turned on. This method returns that config.
+   *
+   * @return {Object}
+   *         Espree compatible permissive config.
+   */
+  getPermissiveConfig: function() {
+    return {
+      range: true,
+      loc: true,
+      tolerant: true,
+      ecmaFeatures: {
+        arrowFunctions: true,
+        blockBindings: true,
+        destructuring: true,
+        regexYFlag: true,
+        regexUFlag: true,
+        templateStrings: true,
+        binaryLiterals: true,
+        octalLiterals: true,
+        unicodeCodePointEscapes: true,
+        defaultParams: true,
+        restParams: true,
+        forOf: true,
+        objectLiteralComputedProperties: true,
+        objectLiteralShorthandMethods: true,
+        objectLiteralShorthandProperties: true,
+        objectLiteralDuplicateProperties: true,
+        generators: true,
+        spread: true,
+        superInFunctions: true,
+        classes: true,
+        modules: true,
+        globalReturn: true
+      }
+    };
+  }
+};
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/lib/index.js
@@ -0,0 +1,25 @@
+/**
+ * @fileoverview A collection of rules that help enforce JavaScript coding
+ * standard and avoid common errors in the Mozilla project.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Plugin Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+  rules: {
+    "components-imports": require("../lib/rules/components-imports"),
+    "import-headjs-globals": require("../lib/rules/import-headjs-globals"),
+    "mark-test-function-used": require("../lib/rules/mark-test-function-used")
+  },
+  rulesConfig: {
+    "components-imports": 0,
+    "import-headjs-globals": 0,
+    "mark-test-function-used": 0
+  }
+};
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/lib/rules/components-imports.js
@@ -0,0 +1,33 @@
+/**
+ * @fileoverview Adds the filename of imported files e.g.
+ * Cu.import("some/path/Blah.jsm") adds Blah to the current scope.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+var path = require("path");
+var helpers = require("../helpers");
+
+module.exports = function(context) {
+  //--------------------------------------------------------------------------
+  // Public
+  //--------------------------------------------------------------------------
+
+  return {
+    ExpressionStatement: function(node) {
+      var source = helpers.getSource(node, context);
+      var name = helpers.getVarNameFromImportSource(source);
+
+      if (name) {
+        helpers.addVarToScope(name, context);
+      }
+    }
+  };
+};
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js
@@ -0,0 +1,100 @@
+/**
+ * @fileoverview Import globals from head.js and from any files that were
+ * imported by head.js (as far as we can correctly resolve the path).
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+var fs = require("fs");
+var path = require("path");
+var helpers = require("../helpers");
+
+module.exports = function(context) {
+  //--------------------------------------------------------------------------
+  // Helpers
+  //--------------------------------------------------------------------------
+
+  function checkFile(fileArray, context) {
+    var filePath = fileArray.pop();
+
+    while (filePath) {
+      var headText;
+
+      try {
+        headText = fs.readFileSync(filePath, "utf8");
+      } catch(e) {
+        // Couldn't find file, continue.
+        filePath = fileArray.pop();
+        continue;
+      }
+
+      var ast = helpers.getAST(headText);
+      var globalVars = helpers.getGlobals(ast);
+
+      for (var i = 0; i < globalVars.length; i++) {
+        var name = globalVars[i];
+        helpers.addVarToScope(name, context);
+      }
+
+      for (var index in ast.body) {
+        var node = ast.body[index];
+        var source = helpers.getTextForNode(node, headText);
+        var name = helpers.getVarNameFromImportSource(source);
+
+        if (name) {
+          helpers.addVarToScope(name, context);
+          continue;
+        }
+
+        // Scripts loaded using loadSubScript or loadHelperScript
+        var matches =
+          source.match(/^(?:Services\.scriptloader\.|loader)?loadSubScript\((.+)[",]/);
+        if (!matches) {
+          matches = source.match(/^loadHelperScript\((.+)[",]/);
+        }
+        if (matches) {
+          var cwd = process.cwd();
+
+          filePath = matches[1];
+          filePath = filePath.replace("chrome://mochitests/content/browser", cwd + "/../../../..");
+          filePath = filePath.replace(/testdir\s*\+\s*["']/gi, cwd + "/");
+          filePath = filePath.replace(/test_dir\s*\+\s*["']/gi, cwd);
+          filePath = filePath.replace(/["']/gi, "");
+          filePath = path.normalize(filePath);
+
+          fileArray.push(filePath);
+        }
+      }
+
+      filePath = fileArray.pop();
+    }
+  }
+
+  //--------------------------------------------------------------------------
+  // Public
+  //--------------------------------------------------------------------------
+
+  return {
+    Program: function(node) {
+      var pathAndFilename = this.getFilename();
+      var processPath = process.cwd();
+      var isTest = /.*\/browser_.+\.js$/.test(pathAndFilename);
+
+      if (!isTest) {
+        return;
+      }
+
+      var testFilename = path.basename(pathAndFilename);
+      var testPath = path.join(processPath, testFilename);
+      var headjs = path.join(processPath, "head.js");
+      checkFile([testPath, headjs], context);
+    }
+  };
+};
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js
@@ -0,0 +1,25 @@
+/**
+ * @fileoverview Simply marks test (the test method) as used. This avoids ESLint
+ * telling us that the function is never called..
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = function(context) {
+  //--------------------------------------------------------------------------
+  // Public
+  //--------------------------------------------------------------------------
+
+  return {
+    Program: function(node) {
+      context.markVariableAsUsed("test");
+    }
+  };
+};
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/moz.build
@@ -0,0 +1,7 @@
+# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SPHINX_TREES['eslint-plugin-mozilla'] = 'docs'
new file mode 100644
--- /dev/null
+++ b/testing/eslint-plugin-mozilla/package.json
@@ -0,0 +1,25 @@
+{
+  "name": "eslint-plugin-mozilla",
+  "version": "0.0.2",
+  "description": "A collection of rules that help enforce JavaScript coding standard in the Mozilla project.",
+  "keywords": [
+    "eslint",
+    "eslintplugin",
+    "eslint-plugin",
+    "mozilla",
+    "firefox"
+  ],
+  "bugs": {
+    "url": "https://bugzilla.mozilla.org/enter_bug.cgi?product=Firefox&component=Developer%20Tools"
+  },
+  "homepage": "https://bugzilla.mozilla.org/show_bug.cgi?id=1203520",
+  "author": "Mike Ratcliffe",
+  "main": "lib/index.js",
+  "devDependencies": {
+    "eslint": "~1.2.0"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "license": "MPL-2.0"
+}