mgorny 14/12/28 22:50:20 Modified: ChangeLog python-single-r1.eclass Log: Add python_gen_usedep, python_gen_useflags and python_gen_cond_dep to python-single-r1.
Revision Changes Path 1.1488 eclass/ChangeLog file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?rev=1.1488&view=markup plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?rev=1.1488&content-type=text/plain diff : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?r1=1.1487&r2=1.1488 Index: ChangeLog =================================================================== RCS file: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v retrieving revision 1.1487 retrieving revision 1.1488 diff -u -r1.1487 -r1.1488 --- ChangeLog 28 Dec 2014 22:45:47 -0000 1.1487 +++ ChangeLog 28 Dec 2014 22:50:20 -0000 1.1488 @@ -1,6 +1,10 @@ # ChangeLog for eclass directory # Copyright 1999-2014 Gentoo Foundation; Distributed under the GPL v2 -# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.1487 2014/12/28 22:45:47 mgorny Exp $ +# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.1488 2014/12/28 22:50:20 mgorny Exp $ + + 28 Dec 2014; Michał Górny <mgo...@gentoo.org> python-single-r1.eclass: + Add python_gen_usedep, python_gen_useflags and python_gen_cond_dep to + python-single-r1. 28 Dec 2014; Michał Górny <mgo...@gentoo.org> python-r1.eclass: Spelling, pointed out by floppym. 1.30 eclass/python-single-r1.eclass file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/python-single-r1.eclass?rev=1.30&view=markup plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/python-single-r1.eclass?rev=1.30&content-type=text/plain diff : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/python-single-r1.eclass?r1=1.29&r2=1.30 Index: python-single-r1.eclass =================================================================== RCS file: /var/cvsroot/gentoo-x86/eclass/python-single-r1.eclass,v retrieving revision 1.29 retrieving revision 1.30 diff -u -r1.29 -r1.30 --- python-single-r1.eclass 7 Nov 2014 18:11:58 -0000 1.29 +++ python-single-r1.eclass 28 Dec 2014 22:50:20 -0000 1.30 @@ -1,6 +1,6 @@ # Copyright 1999-2014 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 -# $Header: /var/cvsroot/gentoo-x86/eclass/python-single-r1.eclass,v 1.29 2014/11/07 18:11:58 axs Exp $ +# $Header: /var/cvsroot/gentoo-x86/eclass/python-single-r1.eclass,v 1.30 2014/12/28 22:50:20 mgorny Exp $ # @ECLASS: python-single-r1 # @MAINTAINER: @@ -228,6 +228,150 @@ } _python_single_set_globals +# @FUNCTION: python_gen_usedep +# @USAGE: <pattern> [...] +# @DESCRIPTION: +# Output a USE dependency string for Python implementations which +# are both in PYTHON_COMPAT and match any of the patterns passed +# as parameters to the function. +# +# Remember to escape or quote the patterns to prevent shell filename +# expansion. +# +# When all implementations are requested, please use ${PYTHON_USEDEP} +# instead. Please also remember to set an appropriate REQUIRED_USE +# to avoid ineffective USE flags. +# +# Example: +# @CODE +# PYTHON_COMPAT=( python{2_7,3_4} ) +# DEPEND="doc? ( dev-python/epydoc[$(python_gen_usedep 'python2*')] )" +# @CODE +# +# It will cause the dependency to look like: +# @CODE +# DEPEND="doc? ( dev-python/epydoc[python_targets_python2_7(-)?,...] )" +# @CODE +python_gen_usedep() { + debug-print-function ${FUNCNAME} "${@}" + + local impl pattern + local matches=() + + for impl in "${PYTHON_COMPAT[@]}"; do + _python_impl_supported "${impl}" || continue + + for pattern; do + if [[ ${impl} == ${pattern} ]]; then + matches+=( + "python_targets_${impl}(-)?" + "python_single_target_${impl}(+)?" + ) + break + fi + done + done + + [[ ${matches[@]} ]] || die "No supported implementations match python_gen_usedep patterns: ${@}" + + local out=${matches[@]} + echo "${out// /,}" +} + +# @FUNCTION: python_gen_useflags +# @USAGE: <pattern> [...] +# @DESCRIPTION: +# Output a list of USE flags for Python implementations which +# are both in PYTHON_COMPAT and match any of the patterns passed +# as parameters to the function. +# +# Example: +# @CODE +# PYTHON_COMPAT=( python{2_7,3_4} ) +# REQUIRED_USE="doc? ( ^^ ( $(python_gen_useflags 'python2*') ) )" +# @CODE +# +# It will cause the variable to look like: +# @CODE +# REQUIRED_USE="doc? ( ^^ ( python_single_target_python2_7 ) )" +# @CODE +python_gen_useflags() { + debug-print-function ${FUNCNAME} "${@}" + + local impl pattern + local matches=() + + for impl in "${PYTHON_COMPAT[@]}"; do + _python_impl_supported "${impl}" || continue + + for pattern; do + if [[ ${impl} == ${pattern} ]]; then + matches+=( "python_single_target_${impl}" ) + break + fi + done + done + + echo "${matches[@]}" +} + +# @FUNCTION: python_gen_cond_dep +# @USAGE: <dependency> <pattern> [...] +# @DESCRIPTION: +# Output a list of <dependency>-ies made conditional to USE flags +# of Python implementations which are both in PYTHON_COMPAT and match +# any of the patterns passed as the remaining parameters. +# +# In order to enforce USE constraints on the packages, verbatim +# '${PYTHON_USEDEP}' (quoted!) may be placed in the dependency +# specification. It will get expanded within the function into a proper +# USE dependency string. +# +# Example: +# @CODE +# PYTHON_COMPAT=( python{2_5,2_6,2_7} ) +# RDEPEND="$(python_gen_cond_dep \ +# 'dev-python/unittest2[${PYTHON_USEDEP}]' python{2_5,2_6})" +# @CODE +# +# It will cause the variable to look like: +# @CODE +# RDEPEND="python_single_target_python2_5? ( +# dev-python/unittest2[python_targets_python2_5(-)?,...] ) +# python_single_target_python2_6? ( +# dev-python/unittest2[python_targets_python2_6(-)?,...] )" +# @CODE +python_gen_cond_dep() { + debug-print-function ${FUNCNAME} "${@}" + + local impl pattern + local matches=() + + local dep=${1} + shift + + for impl in "${PYTHON_COMPAT[@]}"; do + _python_impl_supported "${impl}" || continue + + for pattern; do + if [[ ${impl} == ${pattern} ]]; then + # substitute ${PYTHON_USEDEP} if used + # (since python_gen_usedep() will not return ${PYTHON_USEDEP} + # the code is run at most once) + if [[ ${dep} == *'${PYTHON_USEDEP}'* ]]; then + local PYTHON_USEDEP=$(python_gen_usedep "${@}") + dep=${dep//\$\{PYTHON_USEDEP\}/${PYTHON_USEDEP}} + fi + + matches+=( "python_single_target_${impl}? ( ${dep} )" ) + break + fi + done + done + + echo "${matches[@]}" +} + # @FUNCTION: python_setup # @DESCRIPTION: # Determine what the selected Python implementation is and set
