On 17 September 2013 18:27, Junio C Hamano <gits...@pobox.com> wrote:
> "Burton, Ross" <ross.bur...@intel.com> writes:
>> Why does git-bisect need to be ran from the top level of the working
>> tree?  It sources git-sh-setup.sh which sets GIT_DIR, which
>> git-bisect.sh then appears to consistently use.  Is there a reason for
>> needing to be at the top-level, or is this an old and redundant
>> message?
> A wild guess.
> Imagine if you start from a subdirectory foo/ but the directory did
> not exist in the older part of the history of the project.  When
> bisect needs to check out a revision that was older than the first
> revision that introduced that subdirectory, what should happen?
> Worse yet, if "foo" was a file in the older part of the history,
> what should happen?

"git checkout" doesn't mandate that you're at the top-level, so that's
not a very strong argument.

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