To: "Karl O. Pinc" <kop@meme.com>
Subject: Re: Tagline tagging failings -- Was: Re: [Gnu-arch-users] tla mv
	gets me an error next commit
References: <20041115151313.I8700@mofo.meme.com>
	<41995266.6060400@arbash-meinel.com>
	<20041115195312.I16278@mofo.meme.com>
	<buod5yeef5n.fsf@mctpc71.ucom.lsi.nec.co.jp>
	<20041115201538.O16278@mofo.meme.com>
	<buopt2ecz9b.fsf@mctpc71.ucom.lsi.nec.co.jp>
	<20041115205438.U16278@mofo.meme.com>
From: Miles Bader <miles@lsi.nec.co.jp>
System-Type: i686-pc-linux-gnu
Blat: Foop
Date: Tue, 16 Nov 2004 12:09:06 +0900
In-Reply-To: <20041115205438.U16278@mofo.meme.com> (Karl O. Pinc's message
	of "Mon, 15 Nov 2004 20:54:38 -0600")
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"Karl O. Pinc" <kop@meme.com> writes:
>> As I described in my earlier message, it seems perfectly possible to
>> do the job efficiently without any such "keeping records", and
>> desirable to do so, as such record-keeping has a number of fairly
>> severe problems[*].
>
> It's not like I know what I'm talking about here, but I've doubts
> about your statement.  Because if it's _really_ possible to do the
> job without "keeping records" then there would be no need for
> explicit tagging _ever_, and arch wouldn't have it.

No, that's incorrect.

Explicit tags are _exactly_ like taglines:  they describe an absolute
piece of state in the source tree, a file-name-to-id association.

"Keeping track" of mv/rm/add would _not_ be "absolute" -- it records a
_change_.  Recording changes to a dynamic source tree is problematic
your records only makes sense in a particular context, and so you must
be very careful to make sure it is kept up to date with respect to any
further changes -- some of which may happen outside your control.

> I'm not impressed with taglines, for reasons given in a previous email.
> I'm not asking everybody to give up taglines, I'm asking everybody
> who uses taglines to give up on fixing the partial commit problem.

Ok; now that I've explained why you're wrong, can you please stop asking
this?

-Miles
-- 
The secret to creativity is knowing how to hide your sources.
  --Albert Einstein


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