[gentoo-dev] [PATCH 1/2] distutils-r1.eclass: Prefer "rm -rf build" over "setup.py clean -a"

[Michał Górny]

Prefer using "rm -rf build" directly over "setup.py clean -a".  This
has three advantages:

1. It is much faster.

2. It works on packages that have broken "setup.py clean",
   e.g. dev-python/pydantic.

3. It works on packages that block "setup.py clean" and tell you to use
   "git clean" (sic!), e.g. dev-python/scipy.

This is a potentially (but unlikely) breaking change, so do it
conditionally to GPEP517_TESTING.

Signed-off-by: Michał Górny <mgorny@g.o>
---
 eclass/distutils-r1.eclass | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index de891215e688..e6b0ab5e0e32 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -1090,7 +1090,11 @@ distutils_pep517_install() {
 	# clean the build tree; otherwise we may end up with PyPy3
 	# extensions duplicated into CPython dists
 	if [[ ${DISTUTILS_USE_PEP517:-setuptools} == setuptools ]]; then
-		esetup.py clean -a
+		if [[ ${GPEP517_TESTING} ]]; then
+			rm -rf build || die
+		else
+			esetup.py clean -a
+		fi
 	fi
 }
 
-- 
2.35.1