Make mypy -V show git commit hash more often#2394
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gvanrossum merged 3 commits intomasterfrom Nov 3, 2016
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JukkaL
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Nov 3, 2016
| __version__ = '0.4.6-dev' | ||
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| mypy_dir = os.path.abspath(os.path.dirname(os.path.dirname(__file__))) | ||
| if git.is_git_repo(mypy_dir) and git.have_git(): |
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When run from a repo, these seem to add maybe 30 msec to the mypy runtime when there is a warm cache. This looks like up to 6% slowdown, which is not terrible if most users are using a pip-installed version. However, this could be much worse on cold cache. Can you check the effect on mypy runtime when run straight after restart?
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We chatted offline, the extra cost is not that much even with a cold cache (I tried |
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Wondering if this went too far. I am now getting warnings when running |
This was referenced Nov 14, 2016
This was referenced Dec 20, 2016
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Previously the git commit hash was only appended to
__version__by setup.py. Now we do this dynamically in mypy/version.py. This means the commit hash is also reported when run directly from the repo (e.g.python3 -m mypy -Vfrom the repo root). It is also used by the cache in this case.I didn't notice any slowdown. Notice the contents of version.py in distributions is still overwritten by setup.py so a properly installed version should not be executing any git commands at startup.