[libvirt] [PATCH] use gnulib via a submodule

[Daniel P. Berrange]

On Wed, Jul 08, 2009 at 12:58:11PM +0200, Jim Meyering wrote:
> Daniel P. Berrange wrote:
> ...
> >> From: Jim Meyering <meyering at redhat.com>
> >> Date: Tue, 7 Jul 2009 11:22:52 +0200
> >> Subject: [PATCH 5/7] make .gnulib a submodule
> >>
> >> This makes it so we record (via a git submodule)
> >> a snapshot of whatever version of gnulib we're using,
> >> and none of gnulib sources are in the libvirt repository.
> >> The result is that we have as much reproducibility as when
> >> we version-controlled imported copies of the gnulib sources,
> >> but without the hassle of the manual process we used when
> >> syncing with upstream.
> >>
> >> Note that when you clone libvirt, you get only the libvirt
> >> repository, but when you first run ./bootstrap, it clones
> >> gnulib (at the SHA1 recorded via the submodule), creating
> >> the .gnulib/ hierarchy.  Then, the bootstrap script runs
> >> gnulib-tool to populate gnulib/ with the files that make
> >> up the selected modules.
> >
> >
> > I think perhaps we should wire this into the autogen.sh
> > script. People are used to just cloning a repository and
> > running autogen.sh to get things setup, so it would cause
> > unneccessary confusion to also require them to run bootstrap
> > seprately.
> 
> One reason not to do this (at least not unconditionally)
> is that it takes pretty long.  I've just timed it at 31 seconds,
> even though everything is already downloaded.
> That happens to be the same duration (to the second!)
> of the existing ./autogen.sh script.

I was thinking that you'd only do it if you hadn't already pulled the
gnulib sub-module, or if it was out of date. 

Daniel
-- 
|: Red Hat, Engineering, London   -o-   http://people.redhat.com/berrange/ :|
|: http://libvirt.org  -o-  http://virt-manager.org  -o-  http://ovirt.org :|
|: http://autobuild.org       -o-         http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505  -o-  F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|