Remove leftover build artifacts before the build

Recommended at https://wiki.archlinux.org/title/Python_package_guidelines.

1 files changed, 4 insertions, 0 deletions

diff --git a/PKGBUILD b/PKGBUILD
index d6e8f6883a59..e20b1632ee36 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -27,6 +27,10 @@ pkgver() {
       | sed "s/\([^-]*-g\)/r\1/;s/-/./g")
 }
 
+prepare() {
+  git -C "${pkgname}" clean --force -xd
+}
+
 build() {
   cd "${pkgname}"