Implement `repo add`.

lib/cocoa_pods/command.rb

@@ -17,10 +17,11 @@ module Pod
     end
 
     def initialize(*argv)
-      raise "unknown argument(s): #{argv.join(', ')}" unless argv.empty?
+      raise ArgumentError, "unknown argument(s): #{argv.join(', ')}" unless argv.empty?
     end
 
-    def run
+    def repos_dir
+      File.expand_path('~/.cocoa-pods')
     end
   end
 end

lib/cocoa_pods/command/repo.rb

+require 'executioner'
+require 'fileutils'
+
 module Pod
   class Command
     class Repo < Command
+      include Executioner
+      executable :git
+
+      def initialize(*argv)
+        case @action = argv[0]
+        when'add'
+          unless (@name = argv[1]) && (@url = argv[2])
+            raise ArgumentError, "needs a NAME and URL"
+          end
+        when 'cd'
+          unless @name = argv[1]
+            raise ArgumentError, "needs a NAME"
+          end
+        else
+          super
+        end
+      end
+
+      def dir
+        File.join(repos_dir, @name)
+      end
+
+      def run
+        send @action
+      end
+
+      def add
+        FileUtils.mkdir_p(repos_dir)
+        Dir.chdir(repos_dir) { git("clone #{@url} #{@name}") }
+      end
     end
   end
 end

lib/cocoa_pods/command/setup.rb

-require 'fileutils'
-require 'executioner'
+require 'cocoa_pods/command/repo'
 
 module Pod
   class Command
     class Setup < Command
-      include Executioner
-      executable :git
-
-      def repos_dir
-        File.expand_path('~/.cocoa-pods')
-      end
-
-      def master_repo_dir
-        File.join(repos_dir, 'master')
-      end
-
       def master_repo_url
         'git://github.com/alloy/cocoa-pod-specs.git'
       end
 
+      def add_master_repo_command
+        @command ||= Repo.new('add', 'master', master_repo_url)
+      end
+
       def run
-        FileUtils.mkdir_p(repos_dir)
-        Dir.chdir(repos_dir) { git("clone #{master_repo_url} master") }
+        add_master_repo_command.run
       end
     end
   end

spec/functional/command_spec.rb

@@ -8,14 +8,19 @@ describe "Pod::Command" do
   extend SpecHelper::TemporaryDirectory
 
   it "creates the local spec-repos directory and creates a clone of the `master' repo" do
-    #log!
+    command = Pod::Command.parse('setup')
+    def command.master_repo_url; SpecHelper.fixture('master-spec-repo.git'); end
+    def (command.add_master_repo_command).repos_dir; SpecHelper.tmp_repos_path; end
 
-    command = Pod::Command.parse("setup")
+    command.run
+    git_config('master', 'remote.origin.url').should == fixture('master-spec-repo.git')
+  end
+
+  it "adds a spec-repo" do
+    command = Pod::Command.parse('repo', 'add', 'private', fixture('master-spec-repo.git'))
     def command.repos_dir; SpecHelper.tmp_repos_path; end
-    def command.master_repo_url; SpecHelper.fixture('master-spec-repo.git'); end
 
     command.run
-    File.should.exist command.master_repo_dir
-    git_config('remote.origin.url').should == command.master_repo_url
+    git_config('private', 'remote.origin.url').should == fixture('master-spec-repo.git')
   end
 end

spec/spec_helper/git.rb

@@ -20,12 +20,12 @@ module SpecHelper
     executable :git
 
     alias_method :git_super, :git
-    def git(command)
-      Dir.chdir(tmp_master_repo_path) { git_super(command).strip }
+    def git(repo, command)
+      Dir.chdir(File.join(tmp_repos_path, repo)) { git_super(command).strip }
     end
 
-    def git_config(attr)
-      git "config --get #{attr}"
+    def git_config(repo, attr)
+      git repo, "config --get #{attr}"
     end
   end
 end

spec/unit/command_spec.rb

@@ -11,7 +11,7 @@ end
 
 describe "Pod::Command::Setup" do
   it "complains about unknown arguments" do
-    lambda { Pod::Command::Setup.new('something') }.should.raise
+    lambda { Pod::Command::Setup.new('something') }.should.raise ArgumentError
   end
 
   before do
@@ -25,8 +25,15 @@ describe "Pod::Command::Setup" do
   it "returns the path of the directory where the local spec-repos will be stored" do
     @command.repos_dir.should == File.expand_path("~/.cocoa-pods")
   end
+end
+
+describe "Pod::Command::Repo" do
+  it "complains about unknown arguments" do
+    lambda { Pod::Command::Repo.new('something') }.should.raise ArgumentError
+  end
 
-  it "returns the path of the directory where the `master' spec-repo will be" do
-    @command.master_repo_dir.should == File.expand_path("~/.cocoa-pods/master")
+  it "returns the path of the spec-repo directory" do
+    repo = Pod::Command::Repo.new('cd', 'private')
+    repo.dir.should == File.expand_path("~/.cocoa-pods/private")
   end
 end