implement whereami -n (exclude line numbers)

lib/pry/commands/whereami.rb

@@ -5,7 +5,7 @@ class Pry
     group 'Context'
 
     banner <<-BANNER
-      Usage: whereami [-q] [N]
+      Usage: whereami [-qn] [N]
 
       Describe the current location. If you use `binding.pry` inside a
       method then whereami will print out the source for that method.
@@ -17,6 +17,9 @@ class Pry
       there's no code to show. This is used by pry in the default
       before_session hook to show you when you arrive at a `binding.pry`.
 
+      The `-n` flag can be used to hide line numbers so that code can be copy/pasted
+      effectively.
+
       When pry was started on an Object and there is no associated method,
       whereami will instead output a brief description of the current
       object.
@@ -30,6 +33,7 @@ class Pry
 
     def options(opt)
       opt.on :q, :quiet, "Don't display anything in case of an error"
+      opt.on :n, :"no-line-numbers", "Do not display line numbers."
     end
 
     def code
@@ -55,7 +59,7 @@ class Pry
       set_file_and_dir_locals(@file)
 
       output.puts "\n#{text.bold('From:')} #{location}:\n\n"
-      output.puts code.with_line_numbers.with_marker(@line)
+      output.puts code.with_line_numbers(use_line_numbers?).with_marker(marker)
       output.puts
     end
 
@@ -65,6 +69,14 @@ class Pry
       opts.quiet? && (internal_binding?(target) || !code?)
     end
 
+    def use_line_numbers?
+      !opts.present?(:n)
+    end
+
+    def marker
+      !opts.present?(:n) && @line
+    end
+
     def top_level?
       target_self == TOPLEVEL_BINDING.eval("self")
     end

spec/commands/whereami_spec.rb

@@ -111,6 +111,18 @@ describe "whereami" do
     Object.remove_const(:Cor)
   end
 
+  it 'should not show line numbers or marker when -n switch is used' do
+    class Cor
+      def blimey!
+        out = pry_eval(binding, 'whereami -n')
+        out.should =~ /^def/
+        out.should.not =~ /\=\>/
+      end
+    end
+    Cor.new.blimey!
+    Object.remove_const(:Cor)
+  end
+
   it 'should use Pry.config.default_window_size for window size when outside a method context' do
     old_size, Pry.config.default_window_size = Pry.config.default_window_size, 1
     :litella