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fix(cmd): fixed deadlock when stderr buffer overflow #357

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merged 1 commit into from Oct 15, 2015

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@rikdev rikdev commented Oct 15, 2015

Fixed deadlock when using stderr=PIPE in Popen and Git generates enough
output to a pipe such that it blocks waiting for the OS pipe buffer to
accept more data (see https://docs.python.org/2/library/subprocess.html#subprocess.Popen.wait)

Fixed deadlock when using stderr=PIPE in Popen and Git generates enough
output to a pipe such that it blocks waiting for the OS pipe buffer to
accept more data (see
https://docs.python.org/2/library/subprocess.html#subprocess.Popen.wait)
@Byron Byron added this to the v1.0.2 - Fixes milestone Oct 15, 2015
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@Byron Byron commented Oct 15, 2015

Thank you very much ! It's quite amazing how long code like this could survive in a library (as old) as GitPython. (It's probably because AutoInterrupt is already an error-path which shouldn't be called by default, and indeed is called rarely).

Byron added a commit that referenced this pull request Oct 15, 2015
fix(cmd): fixed deadlock when stderr buffer overflow
@Byron Byron merged commit 7e58e6a into gitpython-developers:master Oct 15, 2015
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Byron added a commit that referenced this pull request Oct 15, 2015
Related to #357
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@Byron Byron commented Oct 15, 2015

Currently I believe GitPython does handle process channels correctly. Maybe you have an example of where this is not the case ?

Those who control the process directly, may as well call communicate() themselves.

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@rikdev rikdev commented Oct 15, 2015

I use Git with Git LFS plugin. When clone a repository with the function git.Repo.clone_from, Git LFS outputs to stderr a list of downloaded files and overflow OS pipe buffer.

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