add_command support, make things even tighter

README.md

@@ -63,6 +63,18 @@ In a nutshell:
 
 * `:dir` changes all tabs to the given directory before executing commands.
 
+### Adding commands that tabs can execute
+
+You can define your own tab commands with `ItermWindow.add_command`:
+
+``` ruby
+ItermWindow.add_command :guard do |group = nil|
+  command = "bundle exec guard"
+  command << " -g #{group}" if group
+  write_text command
+end
+```
+
 More docs coming soon! Also, look at `lib/iterm_window.rb` for more usage examples.
 
 * Developed March 17, 2008 by Chris Powers

lib/iterm_window.rb

@@ -81,6 +81,10 @@ class ItermWindow
     def colors
       @colors
     end
+
+    def add_command(name, &block)
+      ItermWindow::Tab.send(:define_method, name, block)
+    end
   end
 
   ItermWindow.colors = {

spec/iterm_window_spec.rb

@@ -39,6 +39,24 @@ FILE
     end
   end
 
+  describe '.add_command' do
+    before do
+      ItermWindow::Tab.send(:remove_method, :test) rescue nil
+    end
+
+    it 'should define a method on the Tab class' do
+      ItermWindow.add_command :test do |params|
+        params
+      end
+
+      ItermWindow::Tab.should have_a_method_named(:test, 1)
+    end
+
+    after do
+      ItermWindow::Tab.send(:remove_method, :test) rescue nil
+    end
+  end
+
   describe "opening a tab (example 1)" do
     before(:each) do
       ItermWindow.expects(:new).returns(@window)

spec/spec_helper.rb

@@ -2,3 +2,9 @@ RSpec.configure do |c|
   c.mock_with :mocha
 end
 
+RSpec::Matchers.define :have_a_method_named do |name, arity|
+  match do |mod|
+    mod.method_defined?(name).should be_true
+    mod.instance_method(name).arity.should == arity
+  end
+end