commit: 4986eb8eece688f596bbf6e2cbcbe532df07c95f
Author: Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Sat Apr 9 21:55:50 2022 +0000
Commit: Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Mon Apr 11 19:58:39 2022 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4986eb8e
distutils-r1.eclass: Skip build_ext when there no .c/.pyx files
Skip issuing build_ext when there appears to be no .c/.pyx files.
Since starting setuptools is expensive, this gives a major speedup
to building pure Python packages. If the check misfires, the worst
that can happen is that C extensions will be built serialized.
Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>
eclass/distutils-r1.eclass | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index 1a0097647c41..f9cb41aa3d42 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -1133,7 +1133,17 @@ distutils-r1_python_compile() {
fi
if [[ ${DISTUTILS_USE_PEP517} && ${GPEP517_TESTING} ]]; then
- esetup.py build_ext -j "${jobs}" "${@}"
+ # issue build_ext only if it looks like we have
something
+ # to build; setuptools is expensive to start
+ # see extension.py for list of suffixes
+ # .pyx is added for Cython
+ if [[ -n $(
+ find '(' -name '*.c' -o -name '*.cc' -o -name
'*.cpp' \
+ -o -name '*.cxx' -o -name '*.c++' -o
-name '*.m' \
+ -o -name '*.mm' -o -name '*.pyx' ')'
-print -quit
+ ) ]]; then
+ esetup.py build_ext -j "${jobs}" "${@}"
+ fi
else
esetup.py build -j "${jobs}" "${@}"
fi
