[gentoo-dev] [PATCH 1/3] Generate python depstrings in python-r1 (updated).

[Michał Górny]

I've renamed PYTHON_DEPEND to avoid confusion with python.eclass.
---
 gx86/eclass/python-distutils-ng.eclass | 20 ++-----------------
 gx86/eclass/python-r1.eclass           | 35 ++++++++++++++++++++++++++++++++--
 2 files changed, 35 insertions(+), 20 deletions(-)

diff --git a/gx86/eclass/python-distutils-ng.eclass b/gx86/eclass/python-distutils-ng.eclass
index 5df965c..34717aa 100644
--- a/gx86/eclass/python-distutils-ng.eclass
+++ b/gx86/eclass/python-distutils-ng.eclass
@@ -74,24 +74,8 @@ _python-distutils-ng_get_binary_for_implementation() {
 	esac
 }
 
-for impl in ${PYTHON_COMPAT[@]}; do
-	dep_str="${impl/_/.}"
-	case "${dep_str}" in
-		python?.?)
-			dep_str="dev-lang/python:${dep_str: -3}" ;;
-		jython?.?)
-			dep_str="dev-java/jython:${dep_str: -3}" ;;
-		pypy?.?)
-			dep_str="dev-python/pypy:${dep_str: -3}" ;;
-		*)
-			die "Unsupported implementation: ${impl}" ;;
-	esac
-	dep_str="python_targets_${impl}? ( ${dep_str} )"
-
-	RDEPEND="${RDEPEND} ${dep_str}"
-	DEPEND="${DEPEND} ${dep_str}"
-	unset dep_str
-done
+RDEPEND=${PYTHON_DEPS}
+DEPEND=${PYTHON_DEPS}
 
 _PACKAGE_SPECIFIC_S="${S#${WORKDIR}/}"
 
diff --git a/gx86/eclass/python-r1.eclass b/gx86/eclass/python-r1.eclass
index 18f9246..957db68 100644
--- a/gx86/eclass/python-r1.eclass
+++ b/gx86/eclass/python-r1.eclass
@@ -40,14 +40,45 @@ _PYTHON_ALL_IMPLS=(
 # a package supports. It must be set before the `inherit' call.
 # The default is to enable all implementations.
 #
-# PYTHON_COMPAT can be either a scalar or an array. If it's a scalar, the eclass
-# will implicitly convert it to an array.
+# PYTHON_COMPAT can be either a scalar or an array. If it's a scalar,
+# the eclass will implicitly convert it to an array.
 : ${PYTHON_COMPAT:=${_PYTHON_ALL_IMPLS[@]}}
 
+# @ECLASS-VARIABLE: PYTHON_DEPS
+# @DESCRIPTION:
+# This is an eclass-generated Python dependency string for all
+# implementations listed in PYTHON_COMPAT. It should be used
+# in RDEPEND and/or DEPEND like:
+#
+# @CODE
+# RDEPEND="${PYTHON_DEPS}
+#   dev-foo/mydep"
+# DEPEND="${RDEPEND}"
+# @CODE
+
 PYTHON_COMPAT=( ${PYTHON_COMPAT[@]} )
 
 _python_set_globals() {
 	IUSE=${PYTHON_COMPAT[@]/#/python_targets_}
 	REQUIRED_USE="|| ( ${IUSE} )"
+
+	PYTHON_DEPS=
+	local i
+	for i in ${PYTHON_COMPAT[@]}; do
+		local d
+		case ${i} in
+			python*)
+				d='dev-lang/python';;
+			jython*)
+				d='dev-java/jython';;
+			pypy*)
+				d='dev-python/pypy';;
+			*)
+				die "Invalid implementation: ${i}"
+		esac
+
+		local v=${i##*[a-z]}
+		PYTHON_DEPS+=" python_targets_${i}? ( ${d}:${v/_/.} )"
+	done
 }
 _python_set_globals
-- 
1.7.12