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authorJan Steffens <jan.steffens@gmail.com>2011-03-13 15:19:20 +0100
committerJan Steffens <jan.steffens@gmail.com>2011-03-22 19:47:48 +0100
commit0af05a48abb1d35380f4f4259deb163eb3b7b174 (patch)
tree6ded82b231c23421b76147e870f96d07b1385568 /makechrootpkg
parent174ff59dba8c24f544e354cd43f3b68aea91d265 (diff)
downloaddevtools32-0af05a48abb1d35380f4f4259deb163eb3b7b174.tar.xz
Use Btrfs snapshots for chroot copies, when available
This is much faster than using Rsync to clone. Rsync stays available when the chroots are not on a Btrfs.
Diffstat (limited to 'makechrootpkg')
-rwxr-xr-xmakechrootpkg14
1 files changed, 12 insertions, 2 deletions
diff --git a/makechrootpkg b/makechrootpkg
index 1f6f20a..5bf492f 100755
--- a/makechrootpkg
+++ b/makechrootpkg
@@ -127,8 +127,18 @@ if [ ! -d "$copydir" -o "$clean_first" -eq "1" ]; then
fi
echo -n 'creating clean working copy...'
- mkdir -p "$copydir"
- rsync -a --delete -q -W -x "$chrootdir/root/" "$copydir"
+ use_rsync=false
+ if type -P btrfs >/dev/null; then
+ [ -d $copydir ] && btrfs subvolume delete "$copydir" &>/dev/null
+ btrfs subvolume snapshot "$chrootdir/root" "$copydir" &>/dev/null || use_rsync=true
+ else
+ use_rsync=true
+ fi
+
+ if $use_rsync; then
+ mkdir -p "$copydir"
+ rsync -a --delete -q -W -x "$chrootdir/root/" "$copydir"
+ fi
echo 'done'
# Drop the read lock again