Contents

require 'wunderbar'

# run command/block as a background daemon
module Wunderbar
  def self.submit(cmd=nil)
    fork do
      # detach from tty
      Process.setsid
      fork and exit

      # clear working directory and mask
      Dir.chdir '/'
      File.umask 0000

      # close open files
      STDIN.reopen '/dev/null'
      STDOUT.reopen '/dev/null', 'a'
      STDERR.reopen STDOUT

      # clear environment of cgi cruft
      require 'cgi'
      ENV.keys.select {|key| key =~ /^HTTP_/}.each do |key|
        ENV.delete key.dup.untaint
      end
      ::CGI::QueryExtension.public_instance_methods.each do |method|
        ENV.delete method.to_s.upcase
      end

      # setup environment
      ENV['USER'] ||= $USER
      ENV['HOME'] ||= $HOME

      # run cmd and/or block
      system cmd if cmd
      yield if block_given?
    end
  end
end

Version data entries

41 entries across 41 versions & 1 rubygems

Version	Path
wunderbar-1.0.16	lib/wunderbar/job-control.rb
wunderbar-1.0.15	lib/wunderbar/job-control.rb
wunderbar-1.0.14	lib/wunderbar/job-control.rb
wunderbar-1.0.13	lib/wunderbar/job-control.rb
wunderbar-1.0.12	lib/wunderbar/job-control.rb
wunderbar-1.0.11	lib/wunderbar/job-control.rb
wunderbar-1.0.10	lib/wunderbar/job-control.rb
wunderbar-1.0.9	lib/wunderbar/job-control.rb
wunderbar-1.0.8	lib/wunderbar/job-control.rb
wunderbar-1.0.7	lib/wunderbar/job-control.rb
wunderbar-1.0.6	lib/wunderbar/job-control.rb
wunderbar-1.0.5	lib/wunderbar/job-control.rb
wunderbar-1.0.4	lib/wunderbar/job-control.rb
wunderbar-1.0.3	lib/wunderbar/job-control.rb
wunderbar-1.0.2	lib/wunderbar/job-control.rb
wunderbar-1.0.1	lib/wunderbar/job-control.rb
wunderbar-1.0.0	lib/wunderbar/job-control.rb
wunderbar-0.24.4	lib/wunderbar/job-control.rb
wunderbar-0.24.3	lib/wunderbar/job-control.rb
wunderbar-0.24.2	lib/wunderbar/job-control.rb