Plan required maintenance operations after upgrade

scripts/_common.sh

@@ -3,7 +3,7 @@
 # COMMON VARIABLES
 #=================================================
 
-pkg_dependencies="php5-gd php5-json php5-intl php5-mcrypt php5-curl php5-apcu php5-redis php5-ldap php5-imagick imagemagick acl tar smbclient"
+pkg_dependencies="php5-gd php5-json php5-intl php5-mcrypt php5-curl php5-apcu php5-redis php5-ldap php5-imagick imagemagick acl tar smbclient at"
 
 if [ "$(lsb_release --codename --short)" != "jessie" ]; then
 	pkg_dependencies="$pkg_dependencies php-zip php-apcu php-mbstring php-xml"

scripts/upgrade.d/upgrade.last.sh

@@ -8,3 +8,6 @@ nextcloud_source_sha256="4f5dd15a71694bd2f15fba0d2f942e5a5b1f5aba13511c507a23324
 
 # Patch nextcloud files only for the last version
 cp -a ../sources/patches_last_version/* ../sources/patches
+
+# Execute post-upgrade operations later on
+(cd /tmp ; at now + 10 minutes <<< "(cd $final_path ; sudo -u nextcloud php occ db:add-missing-indices ; sudo -u nextcloud php occ db:convert-filecache-bigint -n) > /tmp/nextcloud_maintenance.log")