added cyclone

1 files changed, 42 insertions, 0 deletions

diff --git a/cyclone.sh b/cyclone.sh
new file mode 100755
index 0000000..f77225a
--- /dev/null
+++ b/cyclone.sh
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# clone all partitions of a drive
+# and try not to waste space
+# @author Filipp Lepalaan <filipp@mcare.fi>
+
+if [[ $USER != "root" ]]; then
+  echo "Insufficient privileges!" 2>&1
+  exit 1
+fi
+
+if [[ $# -lt 2 ]]; then
+  echo "Usage: $(basename $0) source destination" 2>&1
+  exit 1
+fi
+
+SOURCE=$1
+TARGET=$2
+
+TMPFILE="/tmp/$(uuidgen)"
+
+# Get size of source
+diskutil info -plist $SOURCE > "${TMPFILE}".plist
+SOURCE_SIZE=`defaults read $TMPFILE TotalSize`
+
+# Get size of destination
+diskutil info -plist $TARGET > $TMPFILE
+TARGET_SIZE=`defaults read $TMPFILE TotalSize`
+rm $TMPFILE
+
+if [[ $TARGET_SIZE < $SOURCE_SIZE ]]; then
+  echo "Warning: target drive is smaller than source!" 2>&1
+fi
+
+if [[ $TARGET_SIZE == $SOURCE_SIZE ]]; then
+  echo "Drives are identical, cloning with dd..."
+  diskutil quiet unmountDisk $SOURCE
+  diskutil quiet unmountDisk $TARGET
+  dd bs=16m if="/dev/r${SOURCE}" of="/dev/r${TARGET}" conv=noerror,sync
+  diskutil quiet mountDisk $SOURCE
+  diskutil quiet mountDisk $TARGET
+  exit 0
+fi