Add support for AWS Tools Profile.

http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html

themes/base.theme.bash

@@ -188,9 +188,9 @@ function svn_prompt_vars {
 }
 
 # this functions returns absolute location of .hg directory if one exists
-# It starts in the current directory and moves its way up until it hits /. 
+# It starts in the current directory and moves its way up until it hits /.
 # If we get to / then no Mercurial repository was found.
-# Example: 
+# Example:
 # - lets say we cd into ~/Projects/Foo/Bar
 # - .hg is located in ~/Projects/Foo/.hg
 # - get_hg_root starts at ~/Projects/Foo/Bar and sees that there is no .hg directory, so then it goes into ~/Projects/Foo
@@ -221,7 +221,7 @@ function hg_prompt_vars {
     HG_ROOT=$(get_hg_root)
 
     if [ -f $HG_ROOT/branch ]; then
-        # Mercurial holds it's current branch in .hg/branch file    
+        # Mercurial holds it's current branch in .hg/branch file
         SCM_BRANCH=$(cat $HG_ROOT/branch)
     else
         SCM_BRANCH=$(hg summary 2> /dev/null | grep branch: | awk '{print $2}')
@@ -352,3 +352,11 @@ if [ ! -e $BASH_IT/plugins/enabled/battery.plugin.bash ]; then
 	echo -n
     }
 fi
+
+function aws_profile {
+  if [[ $AWS_DEFAULT_PROFILE ]]; then
+    echo -e "${AWS_DEFAULT_PROFILE}"
+  else
+    echo -e "default"
+  fi
+}