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To: "Philippe Charnier" <charnier@xp11.frmug.org>
cc: hackers@freebsd.org
Subject: Re: ctm: moving file to Attic 
In-reply-to: Your message of "Sat, 31 Aug 1996 00:04:34 +0200."
             <199608302204.AAA18261@xp11.frmug.org> 
Date: Mon, 02 Sep 1996 07:44:07 +0200
Message-ID: <2111.841643047@critter.tfs.com>
From: Poul-Henning Kamp <phk@critter.tfs.com>
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In message <199608302204.AAA18261@xp11.frmug.org>, "Philippe Charnier" writes:
>Hello,
>
>For now, when a file go to the Attic, something like this is run and
>the content of the entire file is sent via ctm. (Note that the content
>of the file differs a little when going to the Attic):
>  FR src/usr.bin/locate/locate/updatedb.csh,v
>  DM src/usr.bin/locate/locate/Attic
>  FM src/usr.bin/locate/locate/Attic/updatedb.csh,v

Well, you might as well make the more general solution.

Run through the two trees.
	Emit Edits for changed files.
	Emit Mkdirs for new directories.
	Collect list of new & removed files, removed directories.

For all new files in list
	Try all files in the new & removed lists with the same basename
	  select smallest delta produced
	if edit smaller than full file
		emit "Edit with template"
	else
		emit "make new file"

For all files in the remove list
	emit "Remove"

For all dirs in the remove list
	emit "Remove"

Look at the src/usr.sbin/ctm/mkctm/mkctm.c program, and send me patches :-)

--
Poul-Henning Kamp           | phk@FreeBSD.ORG       FreeBSD Core-team.
http://www.freebsd.org/~phk | phk@login.dknet.dk    Private mailbox.
whois: [PHK]                | phk@ref.tfs.com       TRW Financial Systems, Inc.
Future will arrive by its own means, progress not so.