Add --no-color option

Author: andxyz

lib/foreman/cli.rb

@@ -19,12 +19,13 @@ class Foreman::CLI < Foreman::Thor
 
   desc "start [PROCESS]", "Start the application (or a specific PROCESS)"
 
-  method_option :color,     :type => :boolean, :aliases => "-c", :desc => "Force color to be enabled"
-  method_option :env,       :type => :string,  :aliases => "-e", :desc => "Specify an environment file to load, defaults to .env"
-  method_option :formation, :type => :string,  :aliases => "-m", :banner => '"alpha=5,bar=3"', :desc => 'Specify what processes will run and how many. Default: "all=1"'
-  method_option :port,      :type => :numeric, :aliases => "-p"
-  method_option :timeout,   :type => :numeric, :aliases => "-t", :desc => "Specify the amount of time (in seconds) processes have to shutdown gracefully before receiving a SIGKILL, defaults to 5."
-  method_option :timestamp, :type => :boolean, :default => true, :desc => "Include timestamp in output"
+  method_option :color,      :type => :boolean, :aliases => "-c",  :desc => "Force color to be enabled"
+  method_option :"no-color", :type => :boolean, :default => false, :desc => "Force color to be disabled"
+  method_option :env,        :type => :string,  :aliases => "-e",  :desc => "Specify an environment file to load, defaults to .env"
+  method_option :formation,  :type => :string,  :aliases => "-m",  :banner => '"alpha=5,bar=3"', :desc => 'Specify what processes will run and how many. Default: "all=1"'
+  method_option :port,       :type => :numeric, :aliases => "-p"
+  method_option :timeout,    :type => :numeric, :aliases => "-t",  :desc => "Specify the amount of time (in seconds) processes have to shutdown gracefully before receiving a SIGKILL, defaults to 5."
+  method_option :timestamp,  :type => :boolean, :default => true,  :desc => "Include timestamp in output"
 
   class << self
     # Hackery. Take the run method away from Thor so that we can redefine it.

lib/foreman/engine/cli.rb

@@ -24,13 +24,15 @@ module Color
       :bright_white   => 37,
     }
 
-    def self.enable(io, force=false)
+    def self.enable(io, force=false, no_color=false)
       io.extend(self)
       @@color_force = force
+      @@no_color = no_color
     end
 
     def color?
       return true if @@color_force
+      return false if @@no_color
       return false if Foreman.windows?
       return false unless self.respond_to?(:isatty)
       self.isatty && ENV["TERM"]
@@ -50,7 +52,7 @@ def color(name)
   def startup
     @colors = map_colors
     proctitle "foreman: master" unless Foreman.windows?
-    Color.enable($stdout, options[:color])
+    Color.enable($stdout, options[:color], options[:"no-color"])
   end
 
   def output(name, data)