MRI 1.9.3 does not convert Pathname to String in Open3.popen.

lib/cocoapods/docs_generator.rb

@@ -74,7 +74,7 @@ module Pod
 
     def generate(install = false)
       options = generate_appledoc_options
-      options += ['--output', @target_path]
+      options += ['--output', @target_path.to_s]
       options += ['--keep-intermediate-files']
       options += install ? ['-create-docset'] : ['--no-create-docset']
       @target_path.mkpath
@@ -83,7 +83,7 @@ module Pod
       end
     end
 
-    def appledoc (options)
+    def appledoc(options)
       unless self.class.appledoc_installed?
         puts "\n[!] Skipping documentation generation because appledoc can't be found." unless config.silent?
         return
@@ -91,7 +91,9 @@ module Pod
       arguments = []
       arguments += options
       arguments += ['--print-settings'] if config.verbose?
-      arguments += files
+      arguments += files.map(&:to_s)
+      #p arguments
+      puts "appledoc #{arguments.join("' '")}"
       Open3.popen3('appledoc', *arguments) do |i, o, e|
         if config.verbose?
           puts o.read.chomp

spec/unit/docs_generator_spec.rb

@@ -7,11 +7,6 @@ describe Pod::DocsGenerator do
     @pod = Pod::LocalPod.new(fixture_spec('banana-lib/BananaLib.podspec'), @sandbox)
     copy_fixture_to_pod('banana-lib', @pod)
     @doc_installer = Pod::DocsGenerator.new(@pod)
-    @doc_installer.generate
-  end
-
-  after do
-    @sandbox.implode
   end
 
   it 'returns reads correctly the Pod documentation' do
@@ -50,6 +45,14 @@ describe Pod::DocsGenerator do
   end
 
   if Pod::DocsGenerator.appledoc_installed?
+    before do
+      @doc_installer.generate
+    end
+
+    after do
+      @sandbox.implode
+    end
+
     it 'creates the html' do
       File.directory?(@sandbox.root + "Documentation/BananaLib/html").should.be.true
       index = (@sandbox.root + 'Documentation/BananaLib/html/index.html').read