A user just complained that he can't bootstrap because Juju is parsing stderr text from flock, and his server isn't in English, so the error message isn't matching.
https://github.com/juju/juju/blob/master/environs/sshstorage/storage.go#L254 Now, I think we all know that parsing error text is a bad idea, but I think I understand why it was done - it looks like flock the application only returns 1 on this failure, so it's not exactly a unique error code. However, flock the system call returns several different error codes, which are quite unique and easy to handle in a way that is not dependent on the language of the machine. It also happens to be already implemented in the syscalls package: http://golang.org/pkg/syscall/#Flock So.... let's fix this, and try not to call out to bash unless there's absolutely no other way. -Nate
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