[gentoo-commits] gentoo-x86 commit in eclass: ChangeLog python-r1.eclass

["Michal Gorny (mgorny)" <mgorny@gentoo.org>]

mgorny      12/10/29 09:25:04

  Modified:             ChangeLog python-r1.eclass
  Log:
  Introduce python_export_best() to obtain variables for the most preferred Python implementation enabled.

Revision  Changes    Path
1.476                eclass/ChangeLog

file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?rev=1.476&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?rev=1.476&content-type=text/plain
diff : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?r1=1.475&r2=1.476

Index: ChangeLog
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v
retrieving revision 1.475
retrieving revision 1.476
diff -u -r1.475 -r1.476
--- ChangeLog	29 Oct 2012 09:23:58 -0000	1.475
+++ ChangeLog	29 Oct 2012 09:25:04 -0000	1.476
@@ -1,6 +1,10 @@
 # ChangeLog for eclass directory
 # Copyright 1999-2012 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.475 2012/10/29 09:23:58 mgorny Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.476 2012/10/29 09:25:04 mgorny Exp $
+
+  29 Oct 2012; Michał Górny <mgorny@gentoo.org> python-r1.eclass:
+  Introduce python_export_best() to obtain variables for the most preferred
+  Python implementation enabled.
 
   29 Oct 2012; Michał Górny <mgorny@gentoo.org> python-r1.eclass:
   Add getters for common Python variables.



1.10                 eclass/python-r1.eclass

file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/python-r1.eclass?rev=1.10&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/python-r1.eclass?rev=1.10&content-type=text/plain
diff : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/python-r1.eclass?r1=1.9&r2=1.10

Index: python-r1.eclass
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/python-r1.eclass,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -r1.9 -r1.10
--- python-r1.eclass	29 Oct 2012 09:23:58 -0000	1.9
+++ python-r1.eclass	29 Oct 2012 09:25:04 -0000	1.10
@@ -1,6 +1,6 @@
 # Copyright 1999-2012 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/python-r1.eclass,v 1.9 2012/10/29 09:23:58 mgorny Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/python-r1.eclass,v 1.10 2012/10/29 09:25:04 mgorny Exp $
 
 # @ECLASS: python-r1
 # @MAINTAINER:
@@ -387,3 +387,28 @@
 		fi
 	done
 }
+
+# @FUNCTION: python_export_best
+# @USAGE: [<variable>...]
+# @DESCRIPTION:
+# Find the best (most preferred) Python implementation enabled
+# and export given variables for it. If no variables are provided,
+# EPYTHON & PYTHON will be exported.
+python_export_best() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${#} -gt 0 ]] || set -- EPYTHON PYTHON
+
+	local impl best
+	for impl in "${_PYTHON_ALL_IMPLS[@]}"; do
+		if has "${impl}" "${PYTHON_COMPAT[@]}" && use "python_targets_${impl}"
+		then
+			best=${impl}
+		fi
+	done
+
+	[[ ${best+1} ]] || die "python_export_best(): no implementation found!"
+
+	debug-print "${FUNCNAME}: Best implementation is: ${impl}"
+	python_export "${impl}" "${@}"
+}