Fix non-in-place building #127
Merged
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It's unclear when that stopped (or possibly whether it's ever worked), but "regular" commands which don't build in-place (e.g. a simple
setup.py build
) have not worked in a while, because the overrides on tasks triggerbuild_regexes
before the task itself (to say nothing of invokingbuild_regexes
directly).As a result, the build_dir does not exist yet unless there's an old build_dir remaining for some reason, and trying to create the file crashes.
Ensure the build dir exists before trying to write
_regexes.py
. There's a minor TOCTOU in order to handle Python 2'sos.makedirs
, as it doesn't haveexist_ok
.