creffett 14/03/15 00:47:42 Modified: eutils.eclass Log: Add optfeature to eutils.eclass wrt bug 498988, ACKed by WilliamH
Revision Changes Path 1.432 eclass/eutils.eclass file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/eutils.eclass?rev=1.432&view=markup plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/eutils.eclass?rev=1.432&content-type=text/plain diff : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/eutils.eclass?r1=1.431&r2=1.432 Index: eutils.eclass =================================================================== RCS file: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v retrieving revision 1.431 retrieving revision 1.432 diff -u -r1.431 -r1.432 --- eutils.eclass 8 Jan 2014 06:46:18 -0000 1.431 +++ eutils.eclass 15 Mar 2014 00:47:42 -0000 1.432 @@ -1,6 +1,6 @@ # Copyright 1999-2013 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 -# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.431 2014/01/08 06:46:18 vapier Exp $ +# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.432 2014/03/15 00:47:42 creffett Exp $ # @ECLASS: eutils.eclass # @MAINTAINER: @@ -1729,4 +1729,49 @@ check_license() { die "you no longer need this as portage supports ACCEPT_LICENSE itself"; } +# @FUNCTION: optfeature +# @USAGE: <short description> <package atom to match> [other atoms] +# @DESCRIPTION: +# Print out a message suggesting an optional package (or packages) which +# provide the described functionality +# +# The following snippet would suggest app-misc/foo for optional foo support, +# app-misc/bar or app-misc/baz[bar] for optional bar support +# and either both app-misc/a and app-misc/b or app-misc/c for alphabet support. +# @CODE: +# optfeature "foo support" app-misc/foo +# optfeature "bar support" app-misc/bar app-misc/baz[bar] +# optfeature "alphabet support" "app-misc/a app-misc/b" app-misc/c +# +optfeature() { + debug-print-function ${FUNCNAME} "$@" + local i j msg + local desc=$1 + local flag=0 + shift + for i; do + for j in $i; do + if has_version "$j"; then + flag=1 + else + flag=0 + break + fi + done + if [[ $flag -eq 1 ]]; then + break + fi + done + if [[ $flag -eq 0 ]]; then + for i; do + msg=" " + for j in $i; do + msg="${msg} ${j} and" + done + msg="${msg:0: -4} for ${desc}" + elog "${msg}" + done + fi +} + fi
