Add a global config.

lib/cocoa_pods.rb

 module Pod
   autoload :Command, 'cocoa_pods/command'
+  autoload :Config,  'cocoa_pods/config'
 end

lib/cocoa_pods/command.rb

 module Pod
   class Command
+    include Config::Mixin
+
     autoload :Help,  'cocoa_pods/command/help'
     autoload :Setup, 'cocoa_pods/command/setup'
     autoload :Spec,  'cocoa_pods/command/spec'
@@ -19,9 +21,5 @@ module Pod
     def initialize(*argv)
       raise ArgumentError, "unknown argument(s): #{argv.join(', ')}" unless argv.empty?
     end
-
-    def repos_dir
-      File.expand_path('~/.cocoa-pods')
-    end
   end
 end

lib/cocoa_pods/command/repo.rb

@@ -25,7 +25,7 @@ module Pod
       end
 
       def dir
-        File.join(repos_dir, @name)
+        File.join(config.repos_dir, @name)
       end
 
       def run
@@ -33,14 +33,14 @@ module Pod
       end
 
       def add
-        FileUtils.mkdir_p(repos_dir)
-        Dir.chdir(repos_dir) { git("clone #{@url} #{@name}") }
+        FileUtils.mkdir_p(config.repos_dir)
+        Dir.chdir(config.repos_dir) { git("clone #{@url} #{@name}") }
       end
 
       def update
-        names = @name ? [@name] : Dir.entries(repos_dir)[2..-1]
+        names = @name ? [@name] : Dir.entries(config.repos_dir)[2..-1]
         names.each do |name|
-          Dir.chdir(File.join(repos_dir, name)) { git("pull") }
+          Dir.chdir(File.join(config.repos_dir, name)) { git("pull") }
         end
       end
     end

lib/cocoa_pods/config.rb

+module Pod
+  class Config
+    def self.instance
+      @instance ||= new
+    end
+
+    def self.instance=(instance)
+      @instance = instance
+    end
+
+    attr_accessor :repos_dir
+
+    def initialize
+      @repos_dir = File.expand_path("~/.cocoa-pods")
+    end
+
+    module Mixin
+      def config
+        Config.instance
+      end
+    end
+  end
+end

spec/spec_helper.rb

@@ -14,3 +14,9 @@ require 'spec_helper/temporary_directory'
 
 #TMP_DIR = SpecHelper::TemporaryDirectory.temporary_directory
 #TMP_COCOA_PODS_DIR = File.join(TMP_DIR, 'cocoa-pods')
+
+class Bacon::Context
+  include Pod::Config::Mixin
+end
+
+Pod::Config.instance.repos_dir = SpecHelper.tmp_repos_path

spec/unit/command_spec.rb

@@ -21,10 +21,6 @@ describe "Pod::Command::Setup" do
   it "returns the URL of the `master' spec-repo" do
     @command.master_repo_url.should == 'git://github.com/alloy/cocoa-pod-specs.git'
   end
-
-  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
@@ -34,6 +30,6 @@ describe "Pod::Command::Repo" do
 
   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")
+    repo.dir.should == File.join(config.repos_dir, 'private')
   end
 end

spec/unit/config_spec.rb

+require File.expand_path('../../spec_helper', __FILE__)
+
+describe "Pod::Config" do
+  before do
+    @original_config = config
+    Pod::Config.instance = nil
+  end
+
+  after do
+    Pod::Config.instance = @original_config
+  end
+
+  it "returns the singleton config instance" do
+    config.should.be.instance_of Pod::Config
+  end
+
+  it "returns the path to the spec-repos dir" do
+    config.repos_dir.should == File.expand_path("~/.cocoa-pods")
+  end
+end