Re: [gentoo-dev] GLEP 54 and hyphens in PV

[Kent Fredric]

On Wed, May 20, 2009 at 5:01 AM, Ulrich Mueller <ulm@g.o> wrote:

>
>
>    ${PORTDIR}/app-misc/foo/foo-1a_live.ebuild
>    ${PORTDIR}/app-misc/foo-1a/foo-1a-live.ebuild
>
> With our current versioning scheme the rule is very simple: ${P} is
> split into ${PN} and ${PV} at the last hyphen. This can be done in a
> straight forward way by regexp matching, and I would really hate to
> lose this nice property.
>
> Ulrich
>
>

$str="app-misc/foo/foo-1a_live.ebuild";
$str =~ /([^/]+)/([^/]+)/\2(.*).ebuild/
( $category, $package, $version ) = ( $1, $2, $3 )

Simple enough on a supporting language. Naive maybe, but has worked well for
me thus far.

It appears to be more a problem disambiguating from the user-input end of
the spectrum, and this scenario would be more likely to happen if for some
insane crack-fueled reason both packages were to exist. Even then,

app-misc/foo-1a  # must always resolve to "app-misc/foo-1a" due to no =
stating that it needs a version part
=app-misc/foo-1a # must always resolve to "app-misc/foo" due to the =
stating a mandatory version part.  ( =cat/pack is invalid )

-- 
Kent