Re: [Pythonsiphon-devel] features

[Suchandra T. <s-t...@al...>]

On Fri, Jan 04, 2002 at 08:19:02PM +0100, Thomas Heller wrote:
>=20
> Yes, pure python. Here's the changed code (Install.__unpack):
>=20
>     def __unpack(self):
>         """Unpack a package so that it can be built and installed"""
>         from tarfile import TarFile
>         tf =3D TarFile(self.__fileName)
>         tf.untar('.')
>         return
>=20
> >=20
> > > 3. How does ciphon use rpm's under linux? If I understand correctly,
> > > you download the .tar.gz package, build an rpm from it, and then
> > > install it? Maybe I should do something similar under windows (buildi=
ng
> > > and then starting a bdist_wininst installer).
> >=20
> >     Yes, if the user specifies a rpm installation then ciphon builds
> > using bdist_rpm and then installs the generated rpm.
> Knowing nearly nothing about rpm, what do you gain by this? Uninstallation
> support?


    rpm maintains a database of the installed software, the files installed=
 by
each package, and some metainfo on the files.  Besides uninstall support, r=
pm
allows you to verify the integrity of the files since it tracks  the=20
owner, group, permissions, and a md5 hash of the files.  rpm also provides=
=20
for depedency checking and for running pre or post install and uninstall=20
scripts. =20

> Could installtype simply be 'source' or 'setup' to install by setup.py,
> and 'native' or 'system' to use bdist_wininst, rpm, or whatever
> is the preferred method for the system?

    However, this would require another option to specify the native=20
installer since distutils can't determine whether a linux system is using
rpm or not.  I'm leaning towards adding another option to specify whether
the installs are to be made using binary packages or not.  This in conjunct=
ion
with the install type should cover the cases. =20

> BTW: How is uninstallation handled? The bdist_wininst installer includes =
an
> uninstaller, but this one of course does not remove the packes from
> ~/.ciphon/installed.xml...

    Currently it's not an option.  Distutils doesn't record the location of
installed files so there isn't a way to uninstall packages. It's possible
with windows or rpm or debian based systems however. =20

--=20
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Suchandra S. Thapa=20
s-t...@al...

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