From 6caad191c1e0dfab3cbb7aa3e832a45eeaea83f8 Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Sat, 6 Apr 2013 19:50:17 +0200
Subject: Only try to use btrfs snapshots if chroots are on a btrfs partition

---
 archbuild.in  | 4 +++-
 mkarchroot.in | 6 ++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/archbuild.in b/archbuild.in
index 9f9633c..bdb18c0 100644
--- a/archbuild.in
+++ b/archbuild.in
@@ -58,7 +58,9 @@ if ${clean_first} || [[ ! -d "${chroots}/${repo}-${arch}" ]]; then
 			stat_done
 		fi
 
-		{ type -P btrfs && btrfs subvolume delete "${copy}"; } &>/dev/null
+		if [[ "$(stat -f -c %T "${copy}")" == btrfs ]]; then
+			{ type -P btrfs && btrfs subvolume delete "${copy}"; } &>/dev/null
+		fi
 		rm -rf --one-file-system "${copy}"
 	done
 	exec 9>&-
diff --git a/mkarchroot.in b/mkarchroot.in
index 9059cdb..ff9d7eb 100644
--- a/mkarchroot.in
+++ b/mkarchroot.in
@@ -160,8 +160,10 @@ else
 		mkdir -p "${working_dir}"
 	fi
 
-	if { type -P btrfs && btrfs subvolume create "${working_dir}"; } &>/dev/null; then
-		chmod 0755 "${working_dir}"
+	if [[ "$(stat -f -c %T "${working_dir}")" == btrfs ]]; then
+		if { type -P btrfs && btrfs subvolume create "${working_dir}"; } &>/dev/null; then
+			chmod 0755 "${working_dir}"
+		fi
 	fi
 
 	chroot_lock
-- 
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