Adding 'bundle grep PATTERN' for searching across gems / add bundle show --paths

lib/bundler/cli.rb

@@ -266,11 +266,17 @@ def update(*gems)
       Show lists the names and versions of all gems that are required by your Gemfile.
       Calling show with [GEM] will list the exact location of that gem on your machine.
     D
+    method_option "paths", :type => :boolean, 
+      :banner => "List the paths of all gems that are required by your Gemfile."
     def show(gem_name = nil)
       Bundler.load.lock
 
       if gem_name
         Bundler.ui.info locate_gem(gem_name)
+      elsif options[:paths]
+        Bundler.load.specs.sort_by { |s| s.name }.each do |s|
+          Bundler.ui.info locate_gem(s.name)
+        end
       else
         Bundler.ui.info "Gems included by the bundle:"
         Bundler.load.specs.sort_by { |s| s.name }.each do |s|
@@ -479,6 +485,14 @@ def console(group = nil)
       IRB.start
     end
 
+    desc "grep PATTERN", "..."
+    def grep(pattern)
+      Bundler.load.lock
+      Bundler.load.specs.sort_by { |s| s.name }.each do |s|
+        system("grep #{pattern.inspect} #{s.full_gem_path} --recursive --color=auto -o")
+      end
+    end
+
     desc "version", "Prints the bundler's version information"
     def version
       Bundler.ui.info "Bundler version #{Bundler::VERSION}"

spec/other/grep_spec.rb

@@ -0,0 +1,14 @@
+require "spec_helper"
+
+describe "bundle grep" do
+  it "prints grep output" do
+    install_gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "rake"
+    G
+
+    bundle "grep 'RAKE -- Ruby Make'"
+    out.should =~ /rake-0.8.7\/README:RAKE -- Ruby Make/i
+  end
+
+end

spec/other/show_spec.rb

@@ -38,6 +38,19 @@
     bundle "show missing"
     out.should =~ /could not find gem 'missing'/i
   end
+
+  it "prints path of all gems in bundle" do
+    bundle "show --paths"
+    out.should == %w(actionmailer-2.3.2 actionpack-2.3.2 activerecord-2.3.2
+                     activeresource-2.3.2 activesupport-2.3.2 bundler-1.0.18
+                     rails-2.3.2 rake-0.8.7).map { |name| 
+                       if name == 'bundler-1.0.18'
+                         File.expand_path('../../../', __FILE__)
+                       else 
+                         default_bundle_path('gems', name)
+                       end.to_s
+                  }.join("\n")
+  end
 end
 
 describe "bundle show with a git repo" do