Don't allow `pod lib create` to continue with a space in the pod name

Fixed a crash which was causing a failure in `pod lib create` if the name of
the Pod included spaces. As spaces are not supported now this is gracefully
handled with an informative message.

Fixes #1456

CHANGELOG.md

@@ -2,6 +2,16 @@
 
 To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides/installing_cocoapods.html).
 
+## Master
+
+###### Bug Fixes
+
+* Fixed a crash which was causing a failure in `pod lib create` if the name of
+  the Pod included spaces. As spaces are not supported now this is gracefully
+  handled with an informative message.  
+  [Kyle Fuller](https://github.com/kylef)
+  [#1456](https://github.com/CocoaPods/CocoaPods/issues/1456)
+
 ## 0.26.1
 [CocoaPods](https://github.com/CocoaPods/CocoaPods/compare/0.25.0...0.26.0)
 • [cocoapods-core](https://github.com/CocoaPods/Core/compare/0.25.0...0.26.0)

lib/cocoapods/command/lib.rb

@@ -23,6 +23,7 @@ module Pod
         def validate!
           super
           help! "A name for the Pod is required." unless @name
+          help! "The Pod name cannot contain spaces." if @name.match(/\s/)
         end
 
         def run

spec/functional/command/lib_spec.rb

+require File.expand_path('../../../spec_helper', __FILE__)
+
+require 'xcodeproj'
+
+module Pod
+  describe Command::Lib::Create do
+    it "complains if wrong parameters" do
+      lambda { run_command('lib', 'create') }.should.raise CLAide::Help
+    end
+
+    it "complains if pod name contains spaces" do
+      lambda { run_command('lib', 'create', 'Pod Name With Spaces') }.should.raise CLAide::Help
+    end
+  end
+end
+