1 files changed, 40 insertions, 13 deletions
diff --git a/lib/bundler/vendor/thor/shell/basic.rb b/lib/bundler/vendor/thor/shell/basic.rb
index b227b5f4..c8411d3d 100755..100644
--- a/lib/bundler/vendor/thor/shell/basic.rb
+++ b/lib/bundler/vendor/thor/shell/basic.rb
@@ -11,6 +11,21 @@ class Thor
         @base, @padding = nil, 0
       end
 
+      # Mute everything that's inside given block
+      #
+      def mute
+        @mute = true
+        yield
+      ensure
+        @mute = false
+      end
+
+      # Check if base is muted
+      #
+      def mute?
+        @mute
+      end
+
       # Sets the output padding, not allowing less than zero values.
       #
       def padding=(value)
@@ -24,7 +39,7 @@ class Thor
       #
       def ask(statement, color=nil)
         say("#{statement} ", color)
-        $stdin.gets.strip
+        stdin.gets.strip
       end
 
       # Say (print) something to the user. If the sentence ends with a whitespace
@@ -41,11 +56,11 @@ class Thor
         spaces = "  " * padding
 
         if force_new_line
-          $stdout.puts(spaces + message)
+          stdout.puts(spaces + message)
         else
-      $stdout.print(spaces + message)
+          stdout.print(spaces + message)
         end
-        $stdout.flush
+        stdout.flush
       end
 
       # Say a status with the given color and appends the message. Since this
@@ -61,15 +76,15 @@ class Thor
         status = status.to_s.rjust(12)
         status = set_color status, color, true if color
 
-        $stdout.puts "#{status}#{spaces}#{message}"
-        $stdout.flush
+        stdout.puts "#{status}#{spaces}#{message}"
+        stdout.flush
       end
 
       # Make a question the to user and returns true if the user replies "y" or
       # "yes".
       #
       def yes?(statement, color=nil)
-        ask(statement, color) =~ is?(:yes)
+        !!(ask(statement, color) =~ is?(:yes))
       end
 
       # Make a question the to user and returns true if the user replies "n" or
@@ -113,7 +128,7 @@ class Thor
           end
 
           sentence = truncate(sentence, options[:truncate]) if options[:truncate]
-          $stdout.puts sentence
+          stdout.puts sentence
         end
       end
 
@@ -139,9 +154,9 @@ class Thor
 
         paras.each do |para|
           para.split("\n").each do |line|
-            $stdout.puts line.insert(0, " " * ident)
+            stdout.puts line.insert(0, " " * ident)
           end
-          $stdout.puts unless para == paras.last
+          stdout.puts unless para == paras.last
         end
       end
 
@@ -180,12 +195,12 @@ class Thor
       end
 
       # Called if something goes wrong during the execution. This is used by Thor
-      # internally and should not be used inside your scripts. If someone went
+      # internally and should not be used inside your scripts. If something went
       # wrong, you can always raise an exception. If you raise a Thor::Error, it
       # will be rescued and wrapped in the method below.
       #
       def error(statement)
-        $stderr.puts statement
+        stderr.puts statement
       end
 
       # Apply color to the given string with optional bold. Disabled in the
@@ -197,6 +212,18 @@ class Thor
 
       protected
 
+        def stdout
+          $stdout
+        end
+
+        def stdin
+          $stdin
+        end
+
+        def stderr
+          $stderr
+        end
+
         def is?(value) #:nodoc:
           value = value.to_s
 
@@ -229,7 +256,7 @@ HELP
         end
 
         def quiet? #:nodoc:
-          base && base.options[:quiet]
+          mute? || (base && base.options[:quiet])
         end
 
         # This code was copied from Rake, available under MIT-LICENSE