From: Joshua Judson Rosen <rozzin@geekspace.com>
To: sds@gnu.org
Cc: emacs-devel@gnu.org
Subject: Re: Everyone, please stop making my life more difficult
Date: Fri, 12 Sep 2014 15:36:08 -0400 [thread overview]
Message-ID: <87tx4caaxj.fsf@slice.rozzin.com> (raw)
In-Reply-To: <m2ppf0g8zy.fsf@gnu.org> (Sam Steingold's message of "Fri, 12 Sep 2014 11:21:21 -0400")
Sam Steingold <sds@gnu.org> writes:
>
> I thought that rebase _moves_ commits, not _creates_ them anew.
I have found it helpful to think of it like this, so maybe you will too:
* A commit in git or bzr is a node in a linked list; the node's cdr
is the commit's parent-commit, so cdr'ing through the list takes
you back through history toward the branch origin.
* You can't "just move" a node in a linked list without changing any
of its content.
* The reasons that you'd want to create a new node when "moving" a
commit, rather than just modifying it in place, are largely the
same as the reasons that you might want to re-cons nodes onto the
head of a list rather than just setcdr'ing the existing cons cells
in place.
> Just like "mv" does not change ctime of a file,
> rebase must not change the commit time.
If you mv a subdirectory to a different parent directory,
the subdirectory does need to be written to have its
".." link updated, which should update its ctime....
(and even regular files actually may have their ctime updated,
for reasons that I can't seem to find a way of fitting into
the VC analogy)
--
"'tis an ill wind that blows no minds."
next prev parent reply other threads:[~2014-09-12 19:36 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-12 4:36 Everyone, please stop making my life more difficult Eric S. Raymond
2014-09-12 6:08 ` Eli Zaretskii
2014-09-12 9:55 ` Eric S. Raymond
2014-09-12 10:33 ` Eli Zaretskii
2014-09-12 10:49 ` Gregor Zattler
2014-09-12 13:05 ` Eli Zaretskii
2014-09-12 13:19 ` David Kastrup
2014-09-12 13:29 ` Eli Zaretskii
2014-09-12 13:55 ` Andreas Schwab
2014-09-12 14:12 ` Eli Zaretskii
2014-09-12 15:17 ` Eli Zaretskii
2014-09-12 15:21 ` Andreas Schwab
2014-09-12 17:15 ` Eli Zaretskii
2014-09-12 17:43 ` Andreas Schwab
2014-09-12 15:53 ` David Kastrup
2014-09-12 17:22 ` Eli Zaretskii
2014-09-12 19:28 ` David Kastrup
2014-09-12 19:59 ` Eli Zaretskii
2014-09-12 13:57 ` David Kastrup
2014-09-12 14:26 ` Eli Zaretskii
2014-09-12 11:38 ` Eric S. Raymond
2014-09-12 13:14 ` Eli Zaretskii
2014-09-12 16:27 ` Eric S. Raymond
2014-09-12 11:46 ` Harald Hanche-Olsen
2014-09-12 13:56 ` Paul Eggert
2014-09-12 15:08 ` Barry Warsaw
2014-09-12 16:16 ` Eric S. Raymond
2014-09-12 6:47 ` Thien-Thi Nguyen
2014-09-12 7:25 ` David Kastrup
2014-09-12 9:34 ` Thien-Thi Nguyen
2014-09-12 8:18 ` Eli Zaretskii
2014-09-12 8:34 ` Eric S. Raymond
2014-09-12 8:40 ` Eric S. Raymond
2014-09-12 11:47 ` Andreas Schwab
2014-09-12 11:57 ` Eric S. Raymond
2014-09-12 12:17 ` David Kastrup
2014-09-12 13:51 ` Andreas Schwab
2014-09-12 15:54 ` Eric S. Raymond
2014-09-12 16:04 ` David Kastrup
2014-09-12 16:18 ` Andreas Schwab
2014-09-12 16:28 ` Eric S. Raymond
2014-09-12 16:43 ` David Kastrup
2014-09-12 20:19 ` resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult) Joshua Judson Rosen
2014-09-12 20:41 ` Eric S. Raymond
2014-09-12 21:44 ` resolving ambiguity in action stamps Joshua Judson Rosen
2014-09-13 3:45 ` resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult) Stephen J. Turnbull
2014-09-13 5:35 ` Eric S. Raymond
2014-09-13 6:57 ` Stephen J. Turnbull
2014-09-13 7:26 ` resolving ambiguity in action stamps Harald Hanche-Olsen
2014-09-13 10:50 ` Eric S. Raymond
2014-09-13 12:43 ` Yuri Khan
2014-09-14 7:34 ` Stephen J. Turnbull
2014-09-14 10:55 ` Eric S. Raymond
2014-09-14 11:03 ` David Kastrup
2014-09-14 13:30 ` Stephen J. Turnbull
2014-09-14 14:06 ` David Kastrup
2014-09-14 15:51 ` Stephen J. Turnbull
2014-09-14 14:21 ` Eric S. Raymond
2014-09-14 15:45 ` Stephen J. Turnbull
2014-09-14 15:59 ` David Kastrup
2014-09-14 17:12 ` Eric S. Raymond
2014-09-15 0:09 ` Stephen J. Turnbull
2014-09-13 8:51 ` Andreas Schwab
2014-09-12 14:12 ` Everyone, please stop making my life more difficult Sam Steingold
2014-09-12 14:36 ` David Kastrup
2014-09-12 14:44 ` Yuri Khan
2014-09-12 15:24 ` Sam Steingold
2014-09-12 15:59 ` David Kastrup
2014-09-12 16:12 ` Eric S. Raymond
2014-09-12 17:06 ` Stefan Monnier
2014-09-12 20:35 ` Thien-Thi Nguyen
2014-09-12 15:21 ` Sam Steingold
2014-09-12 15:34 ` Harald Hanche-Olsen
2014-09-12 15:51 ` David Kastrup
2014-09-12 17:44 ` Stephen J. Turnbull
2014-09-12 17:58 ` David Caldwell
2014-09-12 19:19 ` Stephen J. Turnbull
2014-09-12 18:01 ` Harald Hanche-Olsen
2014-09-12 19:36 ` Joshua Judson Rosen [this message]
2014-10-28 21:11 ` Randal L. Schwartz
2014-09-12 15:30 ` Phillip Lord
2014-09-12 15:57 ` David Kastrup
2014-09-12 17:10 ` Stefan Monnier
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