Only actually run appledoc from specs if it's installed.

Which one should normally do, but it won't be available on Travis.

lib/cocoapods/docs_generator.rb

 
 module Pod
   class DocsGenerator
+    def self.appledoc_installed?
+      !`which appledoc`.strip.empty?
+    end
+
     attr_reader :pod, :specification, :target_path, :options
 
     def initialize(pod)
@@ -78,9 +82,8 @@ module Pod
     end
 
     def appledoc (options)
-      bin = `which appledoc`.strip
-      if bin.empty?
-        puts "\n[!] Skipping documenation generation because appledoc can't be found." if Config.instance.verbose?
+      unless self.class.appledoc_installed?
+        puts "\n[!] Skipping documentation generation because appledoc can't be found." if Config.instance.verbose?
         return
       end
       arguments = []

spec/integration_spec.rb

@@ -129,6 +129,7 @@ else
           change_log.should.not.include '1.3'
         end
 
+        if Pod::DocsGenerator.appledoc_installed?
           it "generates documentation of all pods by default" do
             podfile = Pod::Podfile.new do
               self.platform :ios
@@ -142,8 +143,9 @@ else
             File.directory?(config.project_pods_root + 'Documentation/JSONKit/html/')
             doc = (config.project_pods_root + 'Documentation/SSToolkit/html/index.html').read
             doc.should.include?('SSToolkit')
-
-
+          end
+        else
+          puts "[!] Skipping documentation generation specs, because appledoc can't be found."
         end
       end
 

spec/unit/docs_generator_spec.rb

@@ -44,6 +44,7 @@ describe Pod::DocsGenerator do
     ]
   end
 
+  if Pod::DocsGenerator.appledoc_installed?
     it 'it creates the documenation directory' do
       File.directory?(@sandbox.root + "Documentation").should.be.true
     end
@@ -55,5 +56,8 @@ describe Pod::DocsGenerator do
       index = (@sandbox.root + 'Documentation/BananaLib/html/Classes/BananaObj.html').read
       index.should.include?('Bananas are cool')
     end
+  else
+    puts "[!] Skipping documentation generation specs, because appledoc can't be found."
+  end
 end