Re: [gentoo-dev] Using some of the emerge features in external programs

[Jon Portnoy <avenj@gentoo.org>]

On Sat, Sep 25, 2004 at 10:32:36PM +0200, Abraham Marin Perez wrote:
> Hi everyone,
> 
>     Firstly I want to say hello since this is the first e-mail I send to
> this mailing list. The second and maybe the most important point is that
> I'd like to use one of the features of emerge, and that is a way to know
> the version of an application that'd be emerged given the name of the
> application or, yet better, the complete name(s) of the file(s) that'd
> be downloaded to emerge that application.

You can access Portage's python library. For example, from the master 
repository distfiles cleaning script (no idea if it's still in use or 
not, I'm not involved with distfiles infrastructure anymore):

URI=`python -c 'import portage; print portage.db["/"]["porttree"].dbapi.aux_get('\"$CATPKG\"',["SRC_URI"])[0]'`

grabbed the Portage-parsed SRC_URI for foo-bar/xyz in $CATPKG.

You can then use basename or whatever your preferred method is for 
parsing out the filenames.

-- 
Jon Portnoy
avenj/irc.freenode.net

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