[Command] Setup shallow clones by default or use `--no-shallow`.

lib/cocoapods/command/setup.rb

@@ -15,13 +15,17 @@ module Pod
       DESC
 
       def self.options
-        [["--push", "Use this option to enable push access once granted"]].concat(super)
+        [
+          ["--no-shallow", "Clone full history so push will work"],
+          ["--push",       "Use this option to enable push access once granted"],
+        ].concat(super)
       end
 
       extend Executable
       executable :git
 
       def initialize(argv)
+        @shallow     = argv.flag?('shallow', true)
         @push_option = argv.flag?('push')
         super
       end
@@ -77,7 +81,11 @@ module Pod
       # @return [void]
       #
       def add_master_repo
-        @command ||= Repo::Add.parse(['master', url, 'master']).run
+        @command ||= begin
+          cmd = ['master', url, 'master']
+          cmd << '--shallow' if @shallow
+          Repo::Add.parse(cmd).run
+        end
       end
 
       # Updates the master repo against the remote.

spec/functional/command/setup_spec.rb

@@ -39,6 +39,28 @@ module Pod
       url.should == test_repo_path.to_s
     end
 
+    it "creates a shallow clone of the `master` repo by default" do
+      Dir.chdir(test_repo_path) do
+        `echo 'touch' > touch && git add touch && git commit -m 'updated'`
+      end
+      # Need to use file:// to test local use of --depth=1
+      Command::Setup.any_instance.stubs(:read_only_url).returns("file://#{test_repo_path}")
+      run_command('setup')
+      Dir.chdir(config.repos_dir + 'master') do
+        `git log --pretty=oneline`.strip.split("\n").size.should == 1
+      end
+    end
+
+    it "creates a full clone of the `master` repo if requested" do
+      Dir.chdir(test_repo_path) do
+        `echo 'touch' > touch && git add touch && git commit -m 'updated'`
+      end
+      run_command('setup', '--no-shallow')
+      Dir.chdir(config.repos_dir + 'master') do
+        `git log --pretty=oneline`.strip.split("\n").size.should > 1
+      end
+    end
+
     it "preserves push access for the `master` repo" do
       output = run_command('setup')
       output.should.not.include "push"