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From: Junio C Hamano <gitster@pobox•com>
To: Jakub Narebski <jnareb@gmail•com>
Cc: Brandon Casey <casey@nrlssc•navy.mil>,
	Werner LEMBERG <wl@gnu•org>,
	git@vger•kernel.org, keithp@keithp•com
Subject: Re: serious problem with `git format-patch' & `git am'
Date: Thu, 26 Feb 2009 18:10:46 -0800	[thread overview]
Message-ID: <7viqmwpr2x.fsf@gitster.siamese.dyndns.org> (raw)
In-Reply-To: <m3ljrsvg0e.fsf@localhost.localdomain> (Jakub Narebski's message of "Thu, 26 Feb 2009 17:11:45 -0800 (PST)")

Jakub Narebski <jnareb@gmail•com> writes:

> I think you want undocumented but for the git-am usage (e.g. 'git am
> -h') --rebasing option to git-am, which makes git-am preserve Subject:
> line formatting,...

I have to warn that that one requires you to have proper commit object
to begin with.  IOW, the first line "From [0-9a-f]{40} date" must record
an existing object name.

As you said, "am" is for applying e-mailed patches and filter-branch would
be the best fit for fixing imported history, but whichever tool is used, I
think it is a mistake to try preserving a "one-line-per-paragraph" format
the original poster seems to have, i.e.:

   foo foo foo foo
   bar bar bar bar
   baz baz baz baz

Yes, the low-level could create a commit object with a message like that,
but all the Porcelains rely on "paragraphs are separated with a blank
line" format.  So no matter how the conversion is done, I think it would
be a good idea to turn the above into:

   foo foo foo foo

   bar bar bar bar
   baz baz baz baz

if the user wants to keep the resulting history any useful.

To do it with "format-patch | am", you would format it like:

	Subject: foo foo foo foo
        From: author name <author.name@domain>
        Date: author date

        bar bar bar bar
        baz baz baz baz

        

  reply	other threads:[~2009-02-27  2:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-25 22:03 serious problem with `git format-patch' & `git am' Werner LEMBERG
2009-02-26 10:42 ` Johannes Schindelin
2009-02-26 18:00 ` Brandon Casey
2009-02-27  1:11   ` Jakub Narebski
2009-02-27  2:10     ` Junio C Hamano [this message]
2009-02-27 15:47       ` Brandon Casey
2009-02-27 17:53         ` Junio C Hamano
2009-02-27  9:16   ` Werner LEMBERG

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