WIP detach

lib/awesome_spawn.rb

@@ -101,6 +101,29 @@ def run!(command, options = {})
     command_result
   end
 
+  # Execute `command` in a detached manner
+  #   by default the :err, and :out are redirected to `/dev/null`
+  #   by default :pggroup is true (to make a daemon process)
+  #   by default :pggroup_new is true (needed for windows)
+  # @example With normal output
+  #   AwesomeSpawn.run_detached('echo "Hi" > /tmp/out')
+  #
+  # @example With error output as well
+  #
+  #
+  # if a user defines :out or :err, it is assumed they will define both
+  def run_detached(command, options = {})
+    env, command_line, options = parse_command_options(command, options)
+    # maybe add support later for this
+    raise ArgumentError, "options cannot contain :in_data" if options.include?(:in_data)
+
+    options[[:out, :err]] = ["/dev/null", "w"] unless (options.keys.flatten & [:out, :err]).any?
+    options[:pgroup]      = true unless options.key?(:pggroup)
+    options[:pggroup_new] = true unless options.key?(:pggroup_new)
+
+    detach(env, command_line, options)
+  end
+
   # (see CommandLineBuilder#build)
   def build_command_line(command, params = nil)
     CommandLineBuilder.new.build(command, params)
@@ -120,4 +143,10 @@ def parse_command_options(command, options)
 
     [env, build_command_line(command, params), options]
   end
+
+  def detach(env, command, options)
+    pid = Kernel.spawn(env, command, options)
+    Process.detach(pid)
+    pid
+  end
 end