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From: "Stephen J. Turnbull" <stephen@xemacs.org>
To: Ken Raeburn <raeburn@raeburn.org>
Cc: Andreas Schwab <schwab@linux-m68k.org>,
	Emacs Development <emacs-devel@gnu.org>
Subject: Re: Bazaar  migration status?
Date: Thu, 23 Jul 2009 12:49:06 +0900	[thread overview]
Message-ID: <871vo8vz2l.fsf@uwakimon.sk.tsukuba.ac.jp> (raw)
In-Reply-To: <4F76137C-0F9C-4181-8C02-F47C0180A9E3@raeburn.org>

Ken Raeburn writes:

 > The advice I've seen isn't "don't do it too often", it's "don't do  
 > it".

Rebase a copy of the branch instead of the original, if it worries you
so much:

    git checkout -b rebased-branch original-branch
    git rebase master

If you're worried about this, but have no control over the main repo,
there's always

    # proof of concept; may fail spectacularly if you have defaults
    # configured
    git-my-pull () { git branch save-branch; git pull $@; }

Advocacy:

True, you will see "don't ever rebase" a lot from git-phobes.  It
should be considered to be a litmus test for git-phobia, not as
reflecting VCS reality.

In fact, rebasing is such an important operation that *all* of the
dVCSes have been forced by user demand to provide it, and *only git*
provides facilities (ie, the reflog) for recovery from an ill-advised
rebase that can be used by newbies.[1]  AFAIK, all of hg, bzr, and
darcs can *destroy* some DAG data basically irrecoverably, while git
*always* preserves it (until the next git-gc --prune, which by default
is so far in the future that it's of the same order of magnitude as an
Emacs release cycle ... uh, well, I exaggerate, but you get the
point).

Git-advocate-who-has-helped-advise-two-transitions-to-hg-ly y'rs,

Footnotes: 
[1]  Admittedly, untangling a git-rebase is not for wilting violet
newbies, but anybody who has learned to accept dying in Nethack should
be able to handle it -- it's exactly the same experience: you didn't
want it to happen, it will take time and effort to get back to where
you were, but no permanent harm is ever done.





  reply	other threads:[~2009-07-23  3:49 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-17 12:41 Bazaar migration status? joakim
2009-07-17 15:50 ` Stefan Monnier
2009-07-17 17:06   ` joakim
2009-07-17 17:56     ` Stefan Monnier
2009-07-19 22:55       ` Daniel Clemente
2009-07-29 16:43         ` Karl Fogel
2009-07-17 18:37     ` Chong Yidong
2009-07-19  6:50       ` Karl Fogel
2009-07-19  9:35         ` joakim
2009-07-19 10:27         ` Ken Raeburn
2009-07-20 13:35           ` Stefan Monnier
2009-07-20 13:55             ` David Reitter
2009-07-20 17:58               ` Stefan Monnier
2009-07-20 22:16                 ` Miles Bader
2009-07-21  0:54                   ` Stefan Monnier
2009-07-21  8:19                   ` Andreas Schwab
2009-07-21 23:31                     ` Ken Raeburn
2009-07-22  7:19                       ` David Reitter
2009-07-22 21:33                       ` Andreas Schwab
2009-07-22 23:46                         ` Ken Raeburn
2009-07-23  3:49                           ` Stephen J. Turnbull [this message]
2009-07-23  5:13                             ` Miles Bader
2009-07-23  5:34                             ` Ken Raeburn
2009-07-23  8:14                               ` Stephen J. Turnbull
2009-07-23 22:06                                 ` Ken Raeburn
2009-07-24  2:43                                   ` Stephen J. Turnbull
2009-07-24  8:45                                     ` Ken Raeburn
2009-07-24 11:13                                       ` Stephen J. Turnbull
2009-07-23  7:53                           ` Andreas Schwab
2009-07-20 22:14       ` Christian Faulhammer

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