From d931a4b466a8c63022442e0bcb38c59b007733a8 Mon Sep 17 00:00:00 2001
From: David Wilson <daw4475@g.rit.edu>
Date: Mon, 11 Nov 2013 18:03:40 -0500
Subject: [PATCH] Most recent version of build.sh

---
 build.sh | 52 ++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 48 insertions(+), 4 deletions(-)

diff --git a/build.sh b/build.sh
index 233c5d8..00ff1e0 100755
--- a/build.sh
+++ b/build.sh
@@ -4,19 +4,63 @@
 if [ -e /run/media/$USER/* ]; then
 
     # Build the .xo file
+    echo 'Found external device.'
+    echo 'Building xo file...'
     ./setup.py dist_xo
     file=dist/*.xo
+    $(echo $file | cut -f1 -d-)
 
     # Check if the file already exists
     if [ -e /run/media/$USER/*/$file ]; then
+        echo 'Removing version on device...'
         rm /run/media/$USER/*/$file
-    fi
+    fi 
 
     # Move the new file onto the external device
+    echo 'Moving xo file to device...'
     mv $file /run/media/$USER/*/
-    rm -rf dist/
+    echo 'Cleaning up...'
+    rm -r dist/
+
+# Notify the user a device was not found
+else
+    echo 'No external device found.'
+    echo 'Building xo file...'
+    ./setup.py dist_xo
+    file=dist/*.xo
+    activity=$(echo $(echo $file | cut -f1 -d-) | cut -f2 -d/)
+
+    # Check if there is a current version of the xo file in your directory
+    if [ -e ./$activity-*.xo ]; then
+        # Prompt the user if they would like to replace the file or not
+        echo -n 'Would you like to replace the current xo file? [y/n]: '
+        read answer
 
-    # Notify the user a device was not found
+        # If the user wants to replace the file, replace it
+        if [ "$answer" == "y" ]; then
+            echo 'Removing previous version...'
+            rm ./$activity-*.xo
+            mv dist/* ./
+            
+        # If the user does not want to replace the file,
+        # save the old one and create the new file
+        elif [ "$answer" == "n" ]; then
+            old=$activity-*.xo
+            mv ./$old ./$activity.old.xo
+            mv ./$file ./$activity.new.xo
+
+        else
+            echo 'Invalid input.'
+            echo 'Aborting.'
+            rm -r dist/
+            exit 1
+        fi
     else
-        echo 'No external device found.'
+        mv dist/* ./
+    fi
+
+    echo 'Cleaning up...'
+    rm -r dist/
 fi
+
+echo 'Finished!'