mkdemo.sh: setup overlayfs demo

Signed-off-by: Amir Goldstein <[email protected]>

scripts/mkdemo.sh

@@ -0,0 +1,56 @@
+#!/bin/bash
+#
+# mkdemo.sh - setup overlayfs snapshots demo
+#
+
+DEMO=/demo
+# re-packed zip from http://opengameart.org/sites/default/files/Playing%20Cards.zip
+CARDS_TARBALL=~/Downloads/PlayingCards.tgz
+CARDS=$DEMO/PlayingCards
+MDIRS=$DEMO/1Mdirs
+SECRET=Passwords.txt
+USER=amir
+GROUP=amir
+# mkdirs tool from https://github.com/amir73il/fsnotify-utils/tree/master/src/test
+MKDIRS=~/bin/mkdirs
+
+setup_demo()
+{
+	mount $DEMO
+	cd $DEMO || exit 1
+}
+
+cleanup_cards()
+{
+	ovlsnapshot umount $CARDS 2>/dev/null
+	rm -rf $CARDS
+}
+
+setup_cards()
+{
+	tar xvfz $CARDS_TARBALL
+	chown -R $USER:$GROUP $CARDS
+}
+
+cleanup_1mdirs()
+{
+	ovlsnapshot umount $MDIRS 2>/dev/null
+	rm -rf $MDIRS/@ $MDIRS/1/2/3/4/* $MDIRS/a/m/i/r/* $MDIRS/1/9/7/3/*
+}
+
+setup_1mdirs()
+{
+	if [ ! -d $MDIRS ]; then
+		mkdir $MDIRS
+		$MKDIRS $MDIRS 3
+	fi
+	chown $USER:$GROUP $MDIRS
+	echo 12345 > $MDIRS/$SECRET
+	chown $USER:$GROUP $MDIRS/$SECRET
+}
+
+setup_demo
+cleanup_cards
+setup_cards
+cleanup_1mdirs
+setup_1mdirs