add .async attribute to GitRepository

spec/git-spec.coffee

@@ -25,6 +25,16 @@ describe "GitRepository", ->
     it "returns null when no repository is found", ->
       expect(GitRepository.open(path.join(temp.dir, 'nogit.txt'))).toBeNull()
 
+  describe ".async", ->
+    it "returns a GitRepositoryAsync for the same repo", ->
+      repoPath = path.join(__dirname, 'fixtures', 'git', 'master.git')
+      repo = new GitRepository(repoPath)
+      onSuccess = jasmine.createSpy('onSuccess')
+      waitsForPromise ->
+        repo.async.getPath().then(onSuccess)
+      runs ->
+        expect(onSuccess.mostRecentCall.args[0]).toBe(repoPath)
+
   describe "new GitRepository(path)", ->
     it "throws an exception when no repository is found", ->
       expect(-> new GitRepository(path.join(temp.dir, 'nogit.txt'))).toThrow()

src/git-repository.coffee

@@ -3,6 +3,7 @@
 _ = require 'underscore-plus'
 {Emitter, Disposable, CompositeDisposable} = require 'event-kit'
 fs = require 'fs-plus'
+GitRepositoryAsync = require './git-repository-async'
 GitUtils = require 'git-utils'
 
 Task = require './task'
@@ -75,6 +76,8 @@ class GitRepository
     unless @repo?
       throw new Error("No Git repository found searching path: #{path}")
 
+    @async = GitRepositoryAsync.open(path)
+
     @statuses = {}
     @upstream = {ahead: 0, behind: 0}
     for submodulePath, submoduleRepo of @repo.submodules