Add backup/restore scripts

scripts/install

@@ -18,7 +18,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # This is an upgrade?
-upgrade=$([ "$HOTSPOT_UPGRADE" == 1 ] && echo true || echo false)
+upgrade=$([ "${HOTSPOT_UPGRADE}" == 1 ] && echo true || echo false)
 
 # Retrieve arguments
 domain=${1}
@@ -119,7 +119,7 @@ if ! $upgrade; then
     echo "ERROR: No wifi interface found" >&2
     exit 1
   fi
-  
+
   # Save arguments
   sudo yunohost app setting hotspot service_enabled -v 1
   sudo yunohost app setting hotspot multissid -v 1
@@ -140,6 +140,10 @@ if ! $upgrade; then
 
 fi
 
+# Save git commit
+gitcommit=$(git rev-parse HEAD)
+sudo yunohost app setting hotspot gitcommit -v "${gitcommit}"
+
 # Install custom scripts
 sudo install -o root -g root -m 0755 ../conf/iw_multissid /usr/local/bin/
 sudo install -o root -g root -m 0755 ../conf/iw_devices /usr/local/bin/