python-any-r1.eclass: Global setter, refactor for more local vars

Refactor _python_any_set_globals() to use local variables while
generating all output, and copy it to final vars at the end. This is
in preparation for integrity checks. NFC.

diff --git a/eclass/python-any-r1.eclass b/eclass/python-any-r1.eclass
index a1dd4282c1efbad216db8fb2b725e3490310f6c4..d41cf6a5808dbd8f3fde94fc7fb32f922da4ac64 100644 (file)
--- a/eclass/python-any-r1.eclass
+++ b/eclass/python-any-r1.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: python-any-r1.eclass
@@ -148,19 +148,20 @@ if [[ ! ${_PYTHON_ANY_R1} ]]; then
 # @CODE
 
 _python_any_set_globals() {
-       local usestr i PYTHON_PKG_DEP
+       local usestr deps i PYTHON_PKG_DEP
        [[ ${PYTHON_REQ_USE} ]] && usestr="[${PYTHON_REQ_USE}]"
 
        _python_set_impls
 
-       PYTHON_DEPS=
        for i in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
                python_export "${i}" PYTHON_PKG_DEP
 
                # note: need to strip '=' slot operator for || deps
-               PYTHON_DEPS="${PYTHON_PKG_DEP%=} ${PYTHON_DEPS}"
+               deps="${PYTHON_PKG_DEP%=} ${deps}"
        done
-       PYTHON_DEPS="|| ( ${PYTHON_DEPS})"
+       deps="|| ( ${deps})"
+
+       PYTHON_DEPS=${deps}
        readonly PYTHON_DEPS
 }
 _python_any_set_globals