Enable Windows builds on AppVeyor

README.md

@@ -1,6 +1,8 @@
-## Update Package Dependencies package [![Build Status](https://travis-ci.org/atom/update-package-dependencies.svg?branch=master)](https://travis-ci.org/atom/update-package-dependencies)
+## Update Package Dependencies package
+[![OS X Build Status](https://travis-ci.org/atom/update-package-dependencies.svg?branch=master)](https://travis-ci.org/atom/update-package-dependencies) [![Windows Build Status](https://ci.appveyor.com/api/projects/status/5xqtoc3xk1e7lt2y/branch/master?svg=true)](https://ci.appveyor.com/project/Atom/update-package-dependencies/branch/master) [![Dependency Status](https://david-dm.org/atom/update-package-dependencies
+.svg)](https://david-dm.org/atom/update-package-dependencies
+)
 
-Runs `apm install` from the current project's directory. This will install all
-dependencies referenced in the `package.json` file to the `node_modules` folder.
+Runs `apm install` from the current project's directory. This will install all dependencies referenced in the `package.json` file to the `node_modules` folder.
 
 This should only be used in projects that are Atom packages.

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