[Command] Add `pod repo add --shallow` option. Default to false.

lib/cocoapods/command/repo.rb

@@ -19,7 +19,14 @@ module Pod
 
         self.arguments = 'NAME URL [BRANCH]'
 
+        def self.options
+          [
+            ["--shallow", "Create a shallow clone (fast clone, but no push capabilities)"],
+          ].concat(super)
+        end
+
         def initialize(argv)
+          @shallow = argv.flag?('shallow', false)
           @name, @url, @branch = argv.shift_argument, argv.shift_argument, argv.shift_argument
           super
         end
@@ -32,9 +39,14 @@ module Pod
         end
 
         def run
-          UI.section("Cloning spec repo `#{@name}` from `#{@url}`#{" (branch `#{@branch}`)" if @branch}") do
+          prefix = @shallow ? 'Creating shallow clone of' : 'Cloning'
+          UI.section("#{prefix} spec repo `#{@name}` from `#{@url}`#{" (branch `#{@branch}`)" if @branch}") do
             config.repos_dir.mkpath
-            Dir.chdir(config.repos_dir) { git!("clone --depth=1 '#{@url}' #{@name}") }
+            Dir.chdir(config.repos_dir) do
+              command = "clone '#{@url}' #{@name}"
+              command << ' --depth=1' if @shallow
+              git!(command)
+            end
             Dir.chdir(dir) { git!("checkout #{@branch}") } if @branch
             SourcesManager.check_version_information(dir)
           end

spec/functional/command/repo_spec.rb

@@ -46,6 +46,17 @@ module Pod
         Dir.chdir(repo2.dir) { `git symbolic-ref HEAD` }.should.include? 'my-branch'
       end
 
+      it "adds a spec-repo by creating a shallow clone" 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
+        run_command('repo', 'add', 'private', '--shallow', "file://#{test_repo_path}")
+        Dir.chdir(config.repos_dir + 'private') do
+          `git log --pretty=oneline`.strip.split("\n").size.should == 1
+        end
+      end
+
       it "updates a spec-repo" do
         repo1 = repo_make('repo1')
         repo2 = repo_clone('repo1', 'repo2')