Re: [PATCH v2 1/1] git mv foo FOO ; git mv foo bar gave an assert

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tboegi@xxxxxx writes:

> From: Torsten Bögershausen <tboegi@xxxxxx>
>
> The following sequence, on a case-insensitive file system,
> (strictly speeking with core.ignorecase=true)
> leads to an assertion, and leaves .git/index.lock behind.

"an assertion failure", I presume?

>
> git init
> echo foo >foo
> git add foo
> git mv foo FOO
> git mv foo bar
>
> This regression was introduced in Commit 9b906af657,
> "git-mv: improve error message for conflicted file"
>
> The bugfix is to change the "file exist case-insensitive in the index"
> into the correct "file exist (case-sensitive) in the index".
> This avoids the "assert".
>
> Reported-By: Dan Moseley <Dan.Moseley@xxxxxxxxxxxxx>
>
> This fixes
> https://github.com/git-for-windows/git/issues/2920
>
> Signed-off-by: Torsten Bögershausen <tboegi@xxxxxx>

By breaking the list of trailers with an unrelated comment in the
middle, the "Reported-by" won't be recognized as a trailer.  We'd
want to credit non-authorship contribution in the release notes
starting in the upcoming release, and this will start mattering.
Please fix it.

> @@ -221,7 +221,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
>  				}
>  				argc += last - first;
>  			}
> -		} else if (!(ce = cache_file_exists(src, length, ignore_case))) {
> +		} else if (!(ce = cache_file_exists(src, length, 0))) {

Good finding.

Before the problematic patch, this used to be

               } else if (cache_name_pos(src, length) < 0)

I wonder if we should revert the change to use cache_file_exists()
in the first place (and rewrite the subsequent use of ce to match),
though.

Thanks.




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