Re: Git checkout preserve timestamp?

From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Mar 2, 2007, 19:21 UTC
Message-ID: <Pine.LNX.4.63.0703022018190.22628@wbgn013.biozentrum.uni-wuerzburg.de>
In-Reply-To: <20070302162136.GA9593@diana.vm.bytemark.co.uk>

Hi,

On Fri, 2 Mar 2007, Karl Hasselström wrote:

> However, given that your file timestamps have been bumped (without file 
> content changes),

There were changes. Only that they have been taken back, but that is _another_ change.

> it's a performance bug in your make tool if this causes it to needlessly 
> rebuild half the known universe. (Fixing the bug by using content hashes 
> to detect changes may or may not be a good trade-off, depending on your 
> workflow.)

Getting dependencies right is sometimes not very easy. I participate in projects which have _seriously_ broken dependencies. In these cases, I do a quick "touch source.c" to force a recompilation.

You'd break this workaround.

Ciao, Dscho

P.S.: yes, I know I could possibly find the object file and remove that, too. But finding the source is often easier.