Enable Windows builds on AppVeyor

Author: damieng

README.md

@@ -1,4 +1,7 @@
-# C/C++ language support in Atom [![Build Status](https://travis-ci.org/atom/language-c.svg?branch=master)](https://travis-ci.org/atom/language-c)
+# C/C++ language support in Atom
+[![OS X Build Status](https://travis-ci.org/atom/language-c.svg?branch=master)](https://travis-ci.org/atom/language-c)
+[![Windows Build Status](https://ci.appveyor.com/api/projects/status/8oy1hmp4yrij7c32/branch/master?svg=true)](https://ci.appveyor.com/project/Atom/language-c/branch/master)
+[![Dependency Status](https://david-dm.org/atom/language-c.svg)](https://david-dm.org/atom/language-c)
 
 Adds syntax highlighting and snippets to C/C++ files in Atom.
 

appveyor.yml

@@ -0,0 +1,17 @@
+version: "{build}"
+
+os: Windows Server 2012 R2
+
+install:
+  - choco install atom -y
+  - cd %APPVEYOR_BUILD_FOLDER%
+  - "%LOCALAPPDATA%/atom/bin/apm clean"
+  - "%LOCALAPPDATA%/atom/bin/apm install"
+
+build_script:
+  - cd %APPVEYOR_BUILD_FOLDER%
+  - "%LOCALAPPDATA%/atom/bin/apm test --path %LOCALAPPDATA%/atom/bin/atom.cmd"
+
+test: off
+
+deploy: off