From: Yuri Khan <yuri.v.khan@gmail.com>
To: Stephen Berman <stephen.berman@gmx.net>
Cc: Mathias Megyei <mathias@mnet-mail.de>,
Emacs developers <emacs-devel@gnu.org>
Subject: Re: git log question
Date: Thu, 30 Nov 2017 22:05:03 +0700 [thread overview]
Message-ID: <CAP_d_8Vh-3D3xFLsRuDux0gp29GQ1MKAE78y_SSsr8A9Hgxnrg@mail.gmail.com> (raw)
In-Reply-To: <87shcvdf27.fsf@gmx.net>
> I'm not sure what you mean by "reachable from a branch"; what I want is
> to find out whether a specific commit (identified by its hash) exists on
> the current branch -- not just whether it exists on some branch in the
> current repository -- and if so, to see that commit.
A Git repository is a directed acyclic graph of commits, each next
commit referencing the previous. The word “reachable” is used in its
usual graph theory meaning: that there exists a path that starts at
the head of the current branch, follows this child–parent
relationships, and ends in the commit you are interested in.
If you have a graphical display handy, run this:
$ gitk master emacs-26 b407c521f2
It will show you how the graph is structured.
On a text-only terminal, this is an acceptable substitute for gitk:
$ git log --oneline --graph master emacs-26 b407c521f2
next prev parent reply other threads:[~2017-11-30 15:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-30 10:00 git log question Stephen Berman
2017-11-30 11:30 ` Mathias Megyei
2017-11-30 12:02 ` Stephen Berman
2017-11-30 13:15 ` Yuri Khan
2017-11-30 14:19 ` Stephen Berman
2017-11-30 14:59 ` Noam Postavsky
2017-11-30 15:05 ` Yuri Khan [this message]
2017-11-30 15:05 ` Andreas Schwab
2017-11-30 15:21 ` Kaushal Modi
2017-11-30 15:25 ` Andreas Schwab
2017-11-30 15:35 ` Noam Postavsky
2017-11-30 17:46 ` Clément Pit-Claudel
2017-11-30 17:59 ` Kaushal Modi
2017-11-30 17:06 ` Davis Herring
2017-11-30 19:11 ` Stephen Berman
2017-11-30 14:28 ` Herring, Davis
2017-11-30 14:37 ` Stephen Berman
2017-11-30 15:57 ` Eli Zaretskii
2017-11-30 19:10 ` Stephen Berman
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