[gentoo-dev] [PATCH v2 7/7] pypi.eclass: Avoid subshell for extglob setting

["Michał Górny" <mgorny@gentoo.org>]

Suggested by Eli Schwartz.  This gives roughly 5260 ops / s, over 550%
speedup.

The complete patch series therefore increases the speed from roughly
326 ops / s to 5260 ops / s, making the common case 16 times faster.

Closes: https://bugs.gentoo.org/908411
Closes: https://github.com/gentoo/gentoo/pull/31404
Signed-off-by: Michał Górny <mgorny@gentoo.org>
---
 eclass/pypi.eclass | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/eclass/pypi.eclass b/eclass/pypi.eclass
index 8911628994eb..8a842c450ebc 100644
--- a/eclass/pypi.eclass
+++ b/eclass/pypi.eclass
@@ -71,10 +71,13 @@ _PYPI_ECLASS=1
 # via _PYPI_NORMALIZED_NAME variable.
 _pypi_normalize_name() {
 	local name=${1}
-	local shopt_save=$(shopt -p extglob)
-	shopt -s extglob
-	name=${name//+([._-])/_}
-	${shopt_save}
+	if shopt -p -q extglob; then
+		name=${name//+([._-])/_}
+	else
+		shopt -s extglob
+		name=${name//+([._-])/_}
+		shopt -u extglob
+	fi
 	_PYPI_NORMALIZED_NAME="${name,,}"
 }
 
-- 
2.41.0