# File lib/chef/mixin/command/windows.rb, line 31 def popen4(cmd, args={}, &b) # By default, we are waiting before we yield the block. args[:waitlast] ||= false #XXX :user, :group, :environment support? Open3.popen3(cmd) do |stdin,stdout,stderr,cid| if b if args[:waitlast] b[cid, stdin, stdout, stderr] # send EOF so that if the child process is reading from STDIN # it will actually finish up and exit stdin.close_write else o = StringIO.new e = StringIO.new stdin.close stdout.sync = true stderr.sync = true line = stdout.gets(nil) if line o.write(line) end line = stderr.gets(nil) if line e.write(line) end o.rewind e.rewind b[cid, stdin, o, e] end else [cid, stdin, stdout, stderr] end end $? end