Gentoo Archives: gentoo-dev

From: Mike Frysinger <vapier@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] new `usex` helper
Date: Wed, 14 Sep 2011 03:44:36
Message-Id: 201109132343.49314.vapier@gentoo.org
In Reply to: Re: [gentoo-dev] new `usex` helper by Brian Harring
On Tuesday, September 13, 2011 23:04:06 Brian Harring wrote:
> On Tue, Sep 13, 2011 at 10:45:27PM -0400, Mike Frysinger wrote: > > On Tuesday, September 13, 2011 19:08:09 Brian Harring wrote: > > > While a bit longer, we likely can gut most of the use_* logic to > > > use that, and it makes it easier to deal w/ the situations where a > > > configure's options always assume --enable-blah thus don't export the > > > option, but *do* export a --disable-blah. > > > > yeah, i thought about replacing use_{with,enable} with usex, but we'd > > have to extend usex() a little bit more > > Only extension I can think of is adding a prefix/postfix... which > frankly seems a bit too much. Anything else you were looking for?
i dont think the postfix is needed for use_{enable,with}: usex() { use $1 && echo ${2:-yes} || echo ${3:-no} ; } use_enable() { usex $1 --enable-${2:-$1}${3:+=}$3 --disable-${2:-$1} ; } use_with() { usex $1 --with-${2:-$1}${3:+=}$3 --without-${2:-$1} ; } although adding it to usex is cheap, simplifies the other helpers a little, and might get used in more creative ways i cant imagine right now: usex() { use $1 && echo ${2:-yes}$4 || echo ${3:-no}$5 ; } use_enable() { usex $1 --{en,dis}able-${2:-$1} "${3:+=}$3" ; } use_with() { usex $1 --with{,out}-${2:-$1} "${3:+=}$3"; } so unless there's any other feedback, i'll open an EAPI bug on the topic and merge it to eutils.eclass -mike

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Re: [gentoo-dev] new `usex` helper Brian Harring <ferringb@×××××.com>