bitbake: toaster: migrate orm models to South

As Toaster advances, database schema alteration
will force users to delete old versions and lose
all data collected.

In order to prevent this, and to allow database
updates to happen without having to delete old data,
we use South to handle migrations for the ORM
application which stores the Toaster data.

    [YOCTO #5559]

(Bitbake rev: 6936faed8d94f3a2ab4055049cd27d02d8229003)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/bin/toaster

@@ -40,9 +40,16 @@ function webserverStartAll()
 {
         retval=0
         python $BBBASEDIR/lib/toaster/manage.py syncdb || retval=1
+        python $BBBASEDIR/lib/toaster/manage.py migrate orm || retval=2
         if [ $retval -eq 1 ]; then
                 echo "Failed db sync, stopping system start" 1>&2
-        else
+        elif [ $retval -eq 2 ]; then
+            echo -e "\nError on migration, trying to recover... \n"
+            python $BBBASEDIR/lib/toaster/manage.py migrate orm 0001_initial --fake
+            retval=0
+            python $BBBASEDIR/lib/toaster/manage.py migrate orm || retval=1
+        fi
+        if [ $retval -eq 0 ]; then
             python $BBBASEDIR/lib/toaster/manage.py runserver 0.0.0.0:8000 </dev/null >${BUILDDIR}/toaster_web.log 2>&1 & echo $! >${BUILDDIR}/.toastermain.pid
         fi
         return $retval
@@ -92,6 +99,13 @@ if ! echo "import django; print (1,5) == django.VERSION[0:2]" | python 2>/dev/nu
     return 2
 fi
 
+if ! echo "import south; print [0,8,4] ==  map(int,south.__version__.split(\".\"))" | python 2>/dev/null | grep True >/dev/null; then
+    echo -e "This program needs South 0.8.4. Please install with\n\nsudo pip install south==0.8.4"
+    return 2
+fi
+
+
+
 
 
 # Determine the action. If specified by arguments, fine, if not, toggle it