From 7cc12bd254650b15fa3c5106745f512534fc3f3d Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Tue, 27 Jun 2017 08:52:16 +0200
Subject: archbuild.in: delete old chroot more forcefully

---
 archbuild.in | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/archbuild.in b/archbuild.in
index 4194b68..73ae65d 100644
--- a/archbuild.in
+++ b/archbuild.in
@@ -69,6 +69,16 @@ if ${clean_first} || [[ ! -d "${chroots}/${repo}-${arch}" ]]; then
 
 		subvolume_delete_recursive "${copy}"
 		rm -rf --one-file-system "${copy}"
+		if [ -d "${copy}" ]; then
+			find "${copy}" \
+				-xdev -mindepth 1 -type d \
+				-exec 'mountpoint' '-q' '{}' ';' \
+				-exec 'umount' '-l' '{}' ';'
+			rm -rf --one-file-system "${copy}"
+			mountpoint -q "${copy}" && \
+				umount -l "${copy}" && \
+				rmdir "${copy}"
+		fi
 	done
 	lock_close 9
 
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