Add a DISTUTILS_ALL_SUBPHASE_IMPLS variable that can be used to restrict
implementations for the *_all() sub-phases.
Example use:
IUSE="doc"
RDEPEND="doc? ( dev-python/epydoc[$(python_gen_usedep 'python2*')] )"
REQUIRED_USE="doc? ( || ( $(python_gen_useflags 'python2*') ) )"
pkg_setup() {
use doc && DISTUTILS_ALL_SUBPHASE_IMPLS=( 'python2*' )
}
python_compile_all() {
use doc && esetup.py doc
}
---
eclass/distutils-r1.eclass | 53 ++++++++++++++++++++++++++++++++++++----------
1 file changed, 42 insertions(+), 11 deletions(-)
diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index da5c687..33b2a96 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -181,6 +181,31 @@ fi
# 'build --build-base ${BUILD_DIR}' to enforce keeping & using built
# files in the specific root.
+# @ECLASS-VARIABLE: DISTUTILS_ALL_SUBPHASE_IMPLS
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# An array of patterns specifying which implementations can be used
+# for *_all() sub-phase functions. If undefined, defaults to '*'
+# (allowing any implementation). If multiple values are specified,
+# implementations matching any of the patterns will be accepted.
+#
+# If the restriction needs to apply conditionally to a USE flag,
+# the variable should be set conditionally as well (e.g. in an early
+# phase function or other convenient location).
+#
+# Please remember to add a matching || block to REQUIRED_USE,
+# to ensure that at least one implementation matching the patterns will
+# be enabled.
+#
+# Example:
+# @CODE
+# REQUIRED_USE="doc? ( || ( $(python_gen_useflags 'python2*') ) )"
+#
+# pkg_setup() {
+# use doc && DISTUTILS_ALL_SUBPHASE_IMPLS=( 'python2*' )
+# }
+# @CODE
+
# @ECLASS-VARIABLE: mydistutilsargs
# @DEFAULT_UNSET
# @DESCRIPTION:
@@ -624,24 +649,30 @@ distutils-r1_run_phase() {
# @USAGE: [<argv>...]
# @INTERNAL
# @DESCRIPTION:
-# Run the given command, restoring the best-implementation state.
+# Run the given command, restoring the state for a most preferred Python
+# implementation matching DISTUTILS_ALL_SUBPHASE_IMPLS.
#
# If in-source build is used, the command will be run in the copy
-# of sources made for the best Python interpreter.
+# of sources made for the selected Python interpreter.
_distutils-r1_run_common_phase() {
local DISTUTILS_ORIG_BUILD_DIR=${BUILD_DIR}
if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then
- local _DISTUTILS_INITIAL_CWD=${PWD}
- local MULTIBUILD_VARIANTS
- _python_obtain_impls
-
- multibuild_for_best_variant _python_multibuild_wrapper \
- distutils-r1_run_phase "${@}"
- else
- # semi-hack, be careful.
- _distutils-r1_run_foreach_impl "${@}"
+ local best_impl patterns=(
"${DISTUTILS_ALL_SUBPHASE_IMPLS[@]-*}" )
+ _distutils_try_impl() {
+ local pattern
+ for pattern in "${patterns[@]}"; do
+ if [[ ${EPYTHON} == ${pattern} ]]; then
+ best_impl=${MULTIBUILD_VARIANT}
+ fi
+ done
+ }
+ python_foreach_impl _distutils_try_impl
+
+ local PYTHON_COMPAT=( "${best_impl}" )
fi
+
+ _distutils-r1_run_foreach_impl "${@}"
}
# @FUNCTION: _distutils-r1_run_foreach_impl
--
2.2.1
