[gentoo-dev] RPM installer for Gentoo

[gentoo-dev] RPM installer for Gentoo

[Andrew Gaffney]

Is their currently a script/program out there that will install an RPM 
onto a Gentoo system? I'm not talking about 'rpm --nodeps -i file.rpm'. 
I mean a program that will parse the RPMs dependencies and then use 
portage to try and satisfy those dependencies, write a dummy ebuild, 
then use portage to install it. Yes, I know RPMs are the spawn of Satan. 
No, I do not need this program for myself. I just think it would be an 
interesting project.

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Andrew Gaffney


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Re: [gentoo-dev] RPM installer for Gentoo

[Jayson Garrell]

On Tue, 2003-08-26 at 12:16, Andrew Gaffney wrote:
> Is their currently a script/program out there that will install an RPM 
> onto a Gentoo system? I'm not talking about 'rpm --nodeps -i file.rpm'. 
> I mean a program that will parse the RPMs dependencies and then use 
> portage to try and satisfy those dependencies, write a dummy ebuild, 
> then use portage to install it. Yes, I know RPMs are the spawn of Satan. 
> No, I do not need this program for myself. I just think it would be an 
> interesting project.

I remember using a program in Debian called 'Alien'. It would convert
rpm's into .deb, .tar.gz, or convert to .deb install the package and
remove the .deb it created. It could probably be extended to do the same
to create .ebuild's.

I'll download the sources and take a look.

Jayson Garrell 


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Re: [gentoo-dev] RPM installer for Gentoo

[Andrew Gaffney]

Jayson Garrell wrote:
> On Tue, 2003-08-26 at 12:16, Andrew Gaffney wrote:
> 
>>Is their currently a script/program out there that will install an RPM 
>>onto a Gentoo system? I'm not talking about 'rpm --nodeps -i file.rpm'. 
>>I mean a program that will parse the RPMs dependencies and then use 
>>portage to try and satisfy those dependencies, write a dummy ebuild, 
>>then use portage to install it. Yes, I know RPMs are the spawn of Satan. 
>>No, I do not need this program for myself. I just think it would be an 
>>interesting project.
> 
> 
> I remember using a program in Debian called 'Alien'. It would convert
> rpm's into .deb, .tar.gz, or convert to .deb install the package and
> remove the .deb it created. It could probably be extended to do the same
> to create .ebuild's.
> 
> I'll download the sources and take a look.

Yes, but can Alien install dependencies using Portage? That would be the 
aim of this project.

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Andrew Gaffney


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Re: [gentoo-dev] RPM installer for Gentoo

[Mike Williams]

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On Tuesday 26 August 2003 21:53, Andrew Gaffney wrote:
> > I remember using a program in Debian called 'Alien'. It would convert
> > rpm's into .deb, .tar.gz, or convert to .deb install the package and
> > remove the .deb it created. It could probably be extended to do the same
> > to create .ebuild's.
> >
> > I'll download the sources and take a look.
>
> Yes, but can Alien install dependencies using Portage? That would be the
> aim of this project.

rpms and debs have dependency information, it must be available at some point 
during the conversion process (it's transferred between rpm <-> deb). So it 
should be trivial to build the {P,R}DEPEND info from that to create a simple 
ebuild.
The conversion process can ask the category, or default to something sensible 
like app-converted maybe ?

- -- 
Mike Williams
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Re: [gentoo-dev] RPM installer for Gentoo

[Andrew Gaffney]

Mike Williams wrote:
> On Tuesday 26 August 2003 21:53, Andrew Gaffney wrote:
> 
>>>I remember using a program in Debian called 'Alien'. It would convert
>>>rpm's into .deb, .tar.gz, or convert to .deb install the package and
>>>remove the .deb it created. It could probably be extended to do the same
>>>to create .ebuild's.
>>>
>>>I'll download the sources and take a look.
>>
>>Yes, but can Alien install dependencies using Portage? That would be the
>>aim of this project.
 >
> rpms and debs have dependency information, it must be available at some point 
> during the conversion process (it's transferred between rpm <-> deb). So it 
> should be trivial to build the {P,R}DEPEND info from that to create a simple 
> ebuild.
> The conversion process can ask the category, or default to something sensible 
> like app-converted maybe ?

I was thinking something like app-rpm, but yes.

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Re: [gentoo-dev] RPM installer for Gentoo

[Luke-Jr]

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I remember that, and I also remember that my problem with it was that it 
required root access and the commands for all the packages (rpm etc). I'd 
much prefer something which parsed the RPM format itself and didn't need to 
extract them. The simplest way, I think, to do this would be to write a 
rpmextract (or similar; not a full blown RPM, but just an extractor) and have 
the auto generated ebuilds use the RPMs in distfiles... The problem would 
come in if we wanted to automate compiling a source RPM... Though for all I 
know they could come with compiliation instructions. I think DEBs do...

On Tuesday 26 August 2003 08:26 pm, Jayson Garrell wrote:
> On Tue, 2003-08-26 at 12:16, Andrew Gaffney wrote:
> > Is their currently a script/program out there that will install an RPM
> > onto a Gentoo system? I'm not talking about 'rpm --nodeps -i file.rpm'.
> > I mean a program that will parse the RPMs dependencies and then use
> > portage to try and satisfy those dependencies, write a dummy ebuild,
> > then use portage to install it. Yes, I know RPMs are the spawn of Satan.
> > No, I do not need this program for myself. I just think it would be an
> > interesting project.
>
> I remember using a program in Debian called 'Alien'. It would convert
> rpm's into .deb, .tar.gz, or convert to .deb install the package and
> remove the .deb it created. It could probably be extended to do the same
> to create .ebuild's.
>
> I'll download the sources and take a look.
>
> Jayson Garrell
>
>
> --
> gentoo-dev@gentoo.org mailing list

- -- 
Luke-Jr
Developer, Gentoo Linux
http://www.gentoo.org/
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Re: [gentoo-dev] RPM installer for Gentoo

[Dewet Diener]

On Tuesday 26 August 2003 21:16, Andrew Gaffney wrote:
> I mean a program that will parse the RPMs dependencies
> and then use portage to try and satisfy those dependencies, write a
> dummy ebuild, then use portage to install it.

Much like g-cpan.pl?  Sounds like a good idea -- the biggest problem 
that I can imagine is different naming conventions:  RedHat / Mdk 
already use (sorta) differing schemes to name packages -- how would 
one go about 'translating' this to category/ebuild names?

Dewet

-- 
Dewet Diener   <gentoo@dewet.org>   http://dewet.org
Professional Student, avid Gentoo user :)
Stellenbosch, South Africa (33º 55" 58.80'S  18º 51" 00.00'E)


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Re: [gentoo-dev] RPM installer for Gentoo

[Andrew Gaffney]

Dewet Diener wrote:
> On Tuesday 26 August 2003 21:16, Andrew Gaffney wrote:
> 
>>I mean a program that will parse the RPMs dependencies
>>and then use portage to try and satisfy those dependencies, write a
>>dummy ebuild, then use portage to install it.
> 
> 
> Much like g-cpan.pl?  Sounds like a good idea -- the biggest problem 
> that I can imagine is different naming conventions:  RedHat / Mdk 
> already use (sorta) differing schemes to name packages -- how would 
> one go about 'translating' this to category/ebuild names?

Make the program interactive? If it can't figure it out all by itself 
(using some kind of algorithm) or if it has a few possibilities, it 
would prompt the user.

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Re: [gentoo-dev] RPM installer for Gentoo

[Terje Kvernes]

Dewet Diener <gentoo@dewet.org> writes:

  [ ... ]

> Much like g-cpan.pl?  Sounds like a good idea -- the biggest problem
> that I can imagine is different naming conventions: RedHat / Mdk
> already use (sorta) differing schemes to name packages -- how would
> one go about 'translating' this to category/ebuild names?

  you need a map between known packages in RedHat (and in Mandrake)
  towards their Gentoo-equivalents.  this only needs to be done once
  per version per distribution.  the big issue is that there is no
  frontend to portage that'll make this easy to incorporate.

-- 
Terje

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Re: [gentoo-dev] RPM installer for Gentoo

[Chris Gianelloni]

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On Wed, 2003-08-27 at 09:11, Terje Kvernes wrote:
>   you need a map between known packages in RedHat (and in Mandrake)
>   towards their Gentoo-equivalents.  this only needs to be done once
>   per version per distribution.  the big issue is that there is no
>   frontend to portage that'll make this easy to incorporate.

You would also need some way to do it for any non-distribution RPM.

There are quite a few programs out there that are made by third parties
that are RPM-only.

-- 
Chris Gianelloni
Developer, Gentoo Linux
Games Team

Is your power animal a penguin?

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Re: [gentoo-dev] RPM installer for Gentoo

[Luke-Jr]

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Well, many RPMs can simply be sorted into some dir in /opt, as they would be 
binaries...

On Wednesday 27 August 2003 01:33 pm, Chris Gianelloni wrote:
> On Wed, 2003-08-27 at 09:11, Terje Kvernes wrote:
> >   you need a map between known packages in RedHat (and in Mandrake)
> >   towards their Gentoo-equivalents.  this only needs to be done once
> >   per version per distribution.  the big issue is that there is no
> >   frontend to portage that'll make this easy to incorporate.
>
> You would also need some way to do it for any non-distribution RPM.
>
> There are quite a few programs out there that are made by third parties
> that are RPM-only.

- -- 
Luke-Jr
Developer, Gentoo Linux
http://www.gentoo.org/
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Re: [gentoo-dev] RPM installer for Gentoo

[Lisa Marie Seelye]

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On Wed, 2003-08-27 at 21:00, Luke-Jr wrote:
> Well, many RPMs can simply be sorted into some dir in /opt, as they would be 
> binaries...

And source RPMs?

-- 
Regards,
-Lisa
<Vix ulla tam iniqua pax, quin bello vel aequissimo sit potior>

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Re: [gentoo-dev] RPM installer for Gentoo

[Luke-Jr]

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For source RPMs, installation location is the least of the problems... How do 
you plan to detect how to compile them?

On Thursday 28 August 2003 01:26 am, Lisa Marie Seelye wrote:
> On Wed, 2003-08-27 at 21:00, Luke-Jr wrote:
> > Well, many RPMs can simply be sorted into some dir in /opt, as they would
> > be binaries...
>
> And source RPMs?
- -- 
Luke-Jr
Developer, Gentoo Linux
http://www.gentoo.org/
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Re: [gentoo-dev] RPM installer for Gentoo

[Marius Mauch]

On Tue, 26 Aug 2003 14:16:50 -0500
Andrew Gaffney <agaffney@technaut.darktalker.net> wrote:

> Is their currently a script/program out there that will install an RPM
> 
> onto a Gentoo system? I'm not talking about 'rpm --nodeps -i
> file.rpm'. I mean a program that will parse the RPMs dependencies and
> then use portage to try and satisfy those dependencies, write a dummy
> ebuild, then use portage to install it. Yes, I know RPMs are the spawn
> of Satan. No, I do not need this program for myself. I just think it
> would be an interesting project.

I don't know of any tool to do it automatically, the easiest way is
probably
a) take a look at the spec file of the src.rpm (if available) and
rewrite that in an ebuild, or
b) make an ebuild based on the rpm eclass like the ebuilds
ximian-connector or use rpm2targz / rpm2cpio

Marius

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Re: [gentoo-dev] RPM installer for Gentoo

[Stuart Herbert]

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On Tuesday 26 August 2003 8:16 pm, Andrew Gaffney wrote:
> Is their currently a script/program out there that will install an RPM
> onto a Gentoo system? I'm not talking about 'rpm --nodeps -i file.rpm'.
> I mean a program that will parse the RPMs dependencies and then use
> portage to try and satisfy those dependencies, write a dummy ebuild,
> then use portage to install it. Yes, I know RPMs are the spawn of Satan.
> No, I do not need this program for myself. I just think it would be an
> interesting project.

Please excuse me for this, but I think it would be a nightmare, and a waste of 
time.

The problem isn't the dependencies, it's converting the install scripts from a 
RedHat-compatible system to a Gentoo one.

I maintain a few ebuilds which have this very problem, and to date I haven't 
figured out a way of performing that automatic conversion.  If someone does, 
then I'd like to hear from them.

Best regards,
Stu
-- 
Stuart Herbert                                              stuart@gentoo.org
Gentoo Developer                                       http://www.gentoo.org/
Beta packages for download            http://dev.gentoo.org/~stuart/packages/
Come and meet me in March 2004                 http://www.phparch.com/cruise/

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Re: [gentoo-dev] RPM installer for Gentoo

[Andrew Gaffney]

Stuart Herbert wrote:
> On Tuesday 26 August 2003 8:16 pm, Andrew Gaffney wrote:
> 
>>Is their currently a script/program out there that will install an RPM
>>onto a Gentoo system? I'm not talking about 'rpm --nodeps -i file.rpm'.
>>I mean a program that will parse the RPMs dependencies and then use
>>portage to try and satisfy those dependencies, write a dummy ebuild,
>>then use portage to install it. Yes, I know RPMs are the spawn of Satan.
>>No, I do not need this program for myself. I just think it would be an
>>interesting project.
> 
> 
> Please excuse me for this, but I think it would be a nightmare, and a waste of 
> time.
> 
> The problem isn't the dependencies, it's converting the install scripts from a 
> RedHat-compatible system to a Gentoo one.
> 
> I maintain a few ebuilds which have this very problem, and to date I haven't 
> figured out a way of performing that automatic conversion.  If someone does, 
> then I'd like to hear from them.

Ah, I had forgotten about those pesky post-install scripts.

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Andrew Gaffney


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Re: [gentoo-dev] RPM installer for Gentoo

[Stuart Herbert]

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On Tuesday 26 August 2003 10:43 pm, Andrew Gaffney wrote:
> Ah, I had forgotten about those pesky post-install scripts.

Yeah :(

Still, a tool to calculate the dependencies would help in checking the quality 
of the Gentoo ebuild.  That at least is worth doing.

Best regards,
Stu
-- 
Stuart Herbert                                              stuart@gentoo.org
Gentoo Developer                                       http://www.gentoo.org/
Beta packages for download            http://dev.gentoo.org/~stuart/packages/
Come and meet me in March 2004                 http://www.phparch.com/cruise/

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