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require 'rbconfig'
module Platform
def running_as_daemon?
@running_as_daemon
end
module_function :running_as_daemon?
def running_as_daemon=(value)
@running_as_daemon = value
end
module_function :running_as_daemon=
def family
target_os = RbConfig::CONFIG["target_os"] or raise 'Cannot determine operating system'
case target_os
when /linux/i then 'linux'
when /32/ then 'mswin32'
when /darwin/ then 'powerpc-darwin'
when /cyg/ then 'cygwin'
when /solaris/ then 'solaris'
when /(free|open|net)bsd/ then 'bsd'
else raise "Unknown OS: #{target_os}"
end
end
module_function :family
def user
family == "mswin32" ? ENV['USERNAME'] : ENV['USER']
end
module_function :user
def prompt(dir=Dir.pwd)
prompt = "#{dir.gsub(/\//, File::SEPARATOR)} #{user}$"
end
module_function :prompt
def interpreter
return File.join(RbConfig::CONFIG['bindir'], RbConfig::CONFIG['ruby_install_name']) unless defined?(JRUBY_VERSION)
"#{Rails.root}/script/jruby"
end
module_function :interpreter
def gem_cmd
"#{Platform.interpreter} -S gem"
end
module_function :gem_cmd
def bundle_cmd
"#{Platform.interpreter} -S bundle"
end
module_function :bundle_cmd
def create_child_process(project_name, command)
Bundler.with_clean_env do
if Kernel.respond_to?(:fork)
begin
pid = fork || safely_exec(command)
# safely exec
Process.detach(pid)
rescue NotImplementedError # Kernel.fork exists but not implemented in Windows
Thread.new { system(command) }
end
else
Thread.new { system(command) }
end
end
end
module_function :create_child_process
def project_pid_file(project_name)
Rails.root.join('tmp', 'pids', 'builders', "#{project_name}.pid")
end
module_function :project_pid_file
def kill_project_builder(project_name)
kill_child_process project_pid_file(project_name).read.chomp
end
module_function :kill_project_builder
def kill_child_process(pid)
kill_tree = Rails.root.join('script', 'killtree')
Kernel.system("#{kill_tree} #{pid}")
end
module_function :kill_child_process
def safely_exec(command)
if running_as_daemon?
STDIN.reopen("/dev/null")
STDOUT.reopen("/dev/null", "w")
STDERR.reopen("/dev/null", "w")
end
exec command
end
module_function :safely_exec
end