Add task to refresh status of repository

By default this will occur when the window gains
focus and the Git class can now be subscribed to
so listeners can become notified when the status
of a repository changes.

src/app/git.coffee

@@ -1,7 +1,9 @@
 _ = require 'underscore'
 fs = require 'fs'
 Subscriber = require 'subscriber'
+EventEmitter = require 'event-emitter'
 GitRepository = require 'git-repository'
+RepositoryStatusTask = require 'repository-status-task'
 
 module.exports =
 class Git
@@ -23,12 +25,16 @@ class Git
     working_dir_typechange: 1 << 10
     ignore: 1 << 14
 
+  statuses: {}
+
   constructor: (path, options={}) ->
     @repo = GitRepository.open(path)
-    refreshIndexOnFocus = options.refreshIndexOnFocus ? true
-    if refreshIndexOnFocus
+    refreshOnWindowFocus = options.refreshOnWindowFocus ? true
+    if refreshOnWindowFocus
       $ = require 'jquery'
-      @subscribe $(window), 'focus', => @refreshIndex()
+      @subscribe $(window), 'focus', =>
+        @refreshIndex()
+        @refreshStatuses()
 
   getRepo: ->
     unless @repo?
@@ -54,9 +60,6 @@ class Git
   getPathStatus: (path) ->
     pathStatus = @getRepo().getStatus(@relativize(path))
 
-  getAllStatuses: (path) ->
-    @getRepo().getStatuses()
-
   isPathIgnored: (path) ->
     @getRepo().isIgnored(@relativize(path))
 
@@ -104,4 +107,8 @@ class Git
   isSubmodule: (path) ->
     @getRepo().isSubmodule(@relativize(path))
 
+  refreshStatuses: ->
+    new RepositoryStatusTask(this).start()
+
 _.extend Git.prototype, Subscriber
+_.extend Git.prototype, EventEmitter

src/app/repository-status-handler.coffee

@@ -0,0 +1,16 @@
+Git = require 'git'
+fs = require 'fs'
+
+module.exports =
+  loadStatuses: (path) ->
+    repo = Git.open(path)
+    if repo?
+      workingDirectoryPath = repo.getWorkingDirectory()
+      statuses = {}
+      for path, status of repo.getRepo().getStatuses()
+        statuses[fs.join(workingDirectoryPath, path)] = status
+      repo.destroy()
+    else
+      statuses = {}
+
+    callTaskMethod('statusesLoaded', statuses)

src/app/repository-status-task.coffee

@@ -0,0 +1,17 @@
+Task = require 'task'
+_ = require 'underscore'
+
+module.exports =
+class RepositoryStatusTask extends Task
+
+  constructor: (@repo) ->
+    super('repository-status-handler')
+
+  started: ->
+    @callWorkerMethod('loadStatuses', @repo.getPath())
+
+  statusesLoaded: (statuses) ->
+    @done()
+    unless _.isEqual(statuses, @repo.statuses)
+      @repo.statuses = statuses
+      @repo.trigger 'statuses-changed'