From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 01 Nov 2017 02:48:02 GMT
Subject: Re: Meaning of two commit-ish hash in git diff
Message-ID: <xmqqfu9yww7x.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <127f7748-4b5d-f6be-2c64-fa4ee079b871@gmail.com>

Yubin Ruan <ablacktshirt@gmail.com> writes:

>>> IOW, if you have the contents of the blob whose object name is
>>> f8886b4, by applying this patch, you will get a blob whose object
>>> name is a1c96df.
>>>
>>> The information is used by "git am -3" when the patch does not apply
>>> cleanly to fall back to the 3-way merge.
>> 
>> The ability to 'git describe` those blob object IDs is currently the subject of a patch series
>> https://public-inbox.org/git/20171031211852.13001-1-sbeller@google.com/
>> 
>> Maybe see if would have helped ;-)
>
> What would be other use case of the blob object / blob name ?

Perhaps start from "git cat-file blob $name".  And follow the path
your imagination leads you to ;-)