[PATCH] scmutil: create directories in a race-safe way during update

[Bryan O'Sullivan]

On Tue, Feb 12, 2013 at 4:23 AM, Thomas Arendsen Hein
<thomas at intevation.de>wrote:

> This is not completely race-safe as makedirs uses recursion, which
> can abort too early when one worker is much faster than the other:
>

That's a good point. I'll take a second stab at it later this morning.
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