Introduce kickstart root-dir

The root-dir is important to know so we can include the kickstart as a
module on compile, so projects can access the kickstart utilities on
their recipes

README.md

@@ -75,6 +75,5 @@ Deploy two roles on a host with an alternative port
 kickstart deploy "-p 2222 vagrant@localhost" nodejs redis
 ```
 
-
 ### Thanks
 This project was inspired on [sunzi](https://github.com/kenn/sunzi)

lib/kickstart-root-dir

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+_kickstart_readlink() {
+  (
+  TARGET_FILE=$1
+
+  cd `dirname $TARGET_FILE`
+  TARGET_FILE=`basename $TARGET_FILE`
+
+  while [ -L "$TARGET_FILE" ]
+  do
+    TARGET_FILE=`readlink $TARGET_FILE`
+    cd `dirname $TARGET_FILE`
+    TARGET_FILE=`basename $TARGET_FILE`
+  done
+
+  PHYS_DIR=`pwd -P`
+  RESULT=$PHYS_DIR/$TARGET_FILE
+  echo $RESULT
+  )
+}
+
+path_to_kickstart=`which kickstart`
+if [[ `uname` == "Darwin" ]]; then
+  dirname $(dirname `_kickstart_readlink "$path_to_kickstart"`)
+else
+  dirname $(dirname `readlink -f "$path_to_kickstart"`)
+fi
+