From: Stefan Beller <sbeller@google.com>
Date: Thu, 19 Jul 2018 21:19:34 GMT
Subject: Re: Find commit that referenced a blob first
Message-ID: <CAGZ79kbJnyRbeH8yMa=QaqNofA_Ek_SwmH5qRaCaq4cyQ26Kqg@mail.gmail.com>
In-Reply-To: <C00CED1F-D685-40E5-A5CC-4040BFD82886@gmail.com>

On Thu, Jul 19, 2018 at 2:02 PM Lars Schneider <larsxschneider@gmail.com> wrote:
>
> Hi,
>
> I have a blob hash and I would like to know what commit referenced
> this blob first in a given Git repo.

git describe <blob>

If the given object refers to a blob, it will be described as
<commit-ish>:<path>,
such that the blob can be found at <path> in the <commit-ish>, which itself
describes the first commit in which this blob occurs in a reverse
revision walk from HEAD.

Since
644eb60bd01 (builtin/describe.c: describe a blob, 2017-11-15)
(included first in 2.16.0

You're welcome,
Stefan