Cannot change locale (eo) message printed during successful unit test runs

[Peter Portante]

Swift unit tests run fine on F18, but this error message is printed out during the run, which makes we wonder if this is really working:

sh: warning: setlocale: LC_ALL: cannot change locale (eo): No such file or directory

[Peter Portante (peter-a-portante)]

This message is also present in the Jenkins python26 jobs that are successful.

[clayg (clay-gerrard)]

Seems like this error can pop up if your LC_ALL is set to something that's not installed on the system (which is likely for an esoteric locale like Esperanto) - although I'm not exactly sure who's printing the warning? python? sh? who invoked sh?

Might be something to do with the os.environ being set in the parent process before the fork (subprocess.check_output).

If you have an environment that can duplicate the warning try moving the os.environ['LC_ALL'] = 'eo' => from swift import gettext_ lines inside the __main__ check and see if the warning goes away?

[Li Ma (nick-ma-z)]

I run unit test in a fresh centos 6.4 environment. It reports the same error.

[Samuel Merritt (torgomatic)]

The warning is emitted by the shell, not by anything in Swift. You can see this with strace.

The remedy is to stop setting the locale to something not installed on the system; this appears to have been done in the Jenkins jobs at some point.