# download, build and install reiserfs library
version=3.6.27
+dir=tmp-cached-reiser
+stamp="$dir/.last-build-reiser"
+here=`pwd`
set -e
-mkdir tmp-reiser
-cd tmp-reiser
+if [ -d "$dir" -a -f "$stamp" ]; then
+ echo "Using valid cache for $dir, built" `cat "$stamp"`
+ cd "$dir"
+ cd reiserfsprogs-${version}
+ sudo make install
+ exit 0
+fi
+
+echo "No or stale cache for $dir, rebuilding"
+rm -rf "$dir"
+mkdir "$dir"
+cd "$dir"
wget https://www.kernel.org/pub/linux/kernel/people/jeffm/reiserfsprogs/v${version}/reiserfsprogs-${version}.tar.xz
tar xf reiserfsprogs-${version}.tar.xz
cd reiserfsprogs-${version}
./configure --prefix=/usr
make all
sudo make install
+date > "$here/$stamp"