Re: on the use of chmod/chown in maintainer scripts
On Sun, May 13, 2012 at 02:10:13AM +0200, Guillem Jover wrote:
> On Sat, 2012-05-12 at 22:47:22 +0100, Roger Leigh wrote:
> > On Sat, May 12, 2012 at 03:55:24PM +0200, Guillem Jover wrote:
> > > One option would be to make dpkg-deb use an internal tar implementation,
> > > and add a file describing the attributes of the to be packaged files.
> > > That might make needing root privs (either through fakeroot or sudo)
> > > unneeded in most of the cases too.
> >
> > I found that this functionality is already present in BSD tar,
> > according to the manpage. You can provide a file containing
> > all the files to pack, plus their ownership and perms etc.,
> > rather than just specifying the files on the command-line.
> >
> > ----bsdtar(1)----
> > An input file in mtree(5) format can be used to create an output archive
> > with arbitrary ownership, permissions, or names that differ from existing
> > data on disk:
> [...]
> > -----------------
>
> Yeah, mtree is actually one of the things I've been having in mind
> when considering ways to store file metadata in the dpkg suite.
>
> > I can't see an equivalent in GNU tar. But BSD tar is available
> > in Debian.
>
> This would imply BSD tar needs to be promoted to the Essential set
> alongside GNU tar, at which point I might as well just use an
> internal tar implementation.
Won't this only be needed for /packing/ the archive though? Can't
any tar implementation still be used for unpacking? Or would
dpkg-deb be constrained to a single tar for both operations?
Regards,
Roger
--
.''`. Roger Leigh
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