auto import from //depot/cupcake/@135843
diff --git a/tools/eclipse/scripts/update_version.sh b/tools/eclipse/scripts/update_version.sh
new file mode 100644
index 0000000..a288965
--- /dev/null
+++ b/tools/eclipse/scripts/update_version.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+OLD="$1"
+NEW="$2"
+
+# sanity check in input args
+if [ -z "$OLD" ] || [ -z "$NEW" ]; then
+ cat <<EOF
+Usage: $0 <old> <new>
+Changes the ADT plugin revision number.
+Example:
+ cd tools/eclipse
+ scripts/update_version.sh 0.1.2 0.2.3
+EOF
+ exit 1
+fi
+
+# sanity check on current dir
+if [ `basename "$PWD"` != "eclipse" ]; then
+ echo "Please run this from tools/eclipse."
+ exit 1
+fi
+
+# quote dots for regexps
+OLD="${OLD//./\.}"
+NEW="${NEW//./\.}"
+
+# Find all the files with the old pattern, except changes.txt and
+# p4 edit them. Skip that if there's no p4 in path.
+if which g4 1>/dev/null 2>/dev/null ; then
+ grep -rl "$OLD" * | grep -E "\.xml$|\.MF$" | xargs -n 5 g4 edit
+fi
+
+# Now find the same files but this time use sed to replace in-place with
+# the new pattern. Old files get backuped with the .old extension.
+grep -rl "$OLD" * | grep -E "\.xml$|\.MF$" | xargs -n 1 sed -i.old "s/$OLD/$NEW/g"
+