Re: Correcting timestamps when importing archives to git

From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Feb 26, 2008, 12:17 UTC
Message-ID: <alpine.LSU.1.00.0802261215171.17164@racer.site>
In-Reply-To: <47C3FBC4.4030206@dgreaves.com>

Hi,

On Tue, 26 Feb 2008, David Greaves wrote:

Show 31 quoted lines

> I recently converted a set of patches to a git repository.
> 
> In order to use the correct timestamps my script used a 'faketime' 
> solution I found here:
>
>   http://www.code-wizards.com/projects/libfaketime/
> 
> I used a perl subroutine that takes a time (obtained by stat()ing the 
> original patch or looking in logs) and then the normal 'system()' args.
> 
> sub faketime_system {
>     my $time=shift;
> 
> $ENV{"LD_PRELOAD"}="/everything/devel/faketime/libfaketime-0.6/libfaketime.so.1";
>     $ENV{"FAKETIME_FMT"}='%s';
>     $ENV{'FAKETIME'}=$time;
>     system @_;
>     $ENV{"LD_PRELOAD"}="";
> }
> 
> 
> so:
> 	$time=(stat("$tarfile"))[9];
> 	faketime_system ($time, "tar xfj $tarfile");
> 
> or:
>     $time=(stat("$patchfile"))[9];
>     faketime_system ($time, "zcat $patchfile | patch -f -p1");
>     faketime_system ($time, "git add .");
> 
> HTH someone else...

Wow.  That is sure one of the most complicated ways to go about it.

IMO GIT_AUTHOR_DATE and GIT_COMMITTER_DATE (mentioned in Documentation/git.txt, and described in Documentation/git-commit-tree.txt) would have been the tools to use.

Hth, Dscho