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pre-push: fix stdin line splitting when <local ref> has whitespace #2345

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merged 1 commit into from
Apr 14, 2022

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wwade
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@wwade wwade commented Apr 14, 2022

From the pre-push.sample file:

Information about the commits which are being pushed is supplied as
lines to the standard input in the form:

<local ref> <local sha1> <remote ref> <remote sha1>

When <local ref> is not simply a branch name, but a more general
ref (see git-rev-parse(1)), it could contain whitespace, and that
breaks the split() call that expected only 3 spaces in the line.

Changed to use rsplit(maxsplit=3) since only the is
likely to have embedded whitespace.

Added a new test case for the same.

Fixes #2344

From the `pre-push.sample` file:

> Information about the commits which are being pushed is supplied as
> lines to the standard input in the form:
>
>   <local ref> <local sha1> <remote ref> <remote sha1>

When `<local ref>` is not simply a branch name, but a more general
ref (see git-rev-parse(1)), it could contain whitespace, and that
breaks the split() call that expected only 3 spaces in the line.

Changed to use `rsplit(maxsplit=3)` since only the <local ref> is
likely to have embedded whitespace.

Added a new test case for the same.
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nice, you learn something wild and wacky about git every day it seems

@asottile asottile merged commit 2562c7f into pre-commit:main Apr 14, 2022
@wwade
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wwade commented Apr 14, 2022

nice, you learn something wild and wacky about git every day it seems

at least every day 😄

also, I love this gif, thanks for that!

@asottile
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heh -- there's a bunch more and a user script too -- https://github.com/chriskuehl/shipit https://www.youtube.com/watch?v=2rDNJvHznrM

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pre-push hook failed with "ValueError: too many values to unpack (expected 4)"
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