Adding mysql managment steps listdb and sizedb

seqs/webserver.sh

@@ -186,9 +186,29 @@ step_12() {
   exe mysql -u root -e 'FLUSH PRIVILEGES;'
 }
 
-step_14_info() { echo "Backup and restore a mysql database"; }
-step_14_alias() { ALIAS="backup"; }
+step_14_info() { echo "List mysql databases"; }
+step_14_alias() { ALIAS="listdb"; }
 step_14() {
+  exe mysql -u root -e 'SHOW DATABASES;'
+}
+
+step_16_info() { echo "Size of database [DATABASE_NAME]"; }
+step_16_alias() { ALIAS="sizedb"; }
+step_16() {
+  if [ -z "$2" ]; then
+    echo "Please provide a database name. e.g. $0 sizedb mydb_db"
+  else
+    exe mysql -u root -e 'SELECT table_schema "DB Name",
+          ROUND(SUM(data_length + index_length) / 1024 / 1024, 1) "DB Size in MB" 
+          FROM information_schema.tables 
+          WHERE table_schema="'$2'"
+          GROUP BY table_schema;'
+  fi
+}
+
+step_18_info() { echo "Backup and restore a mysql database"; }
+step_18_alias() { ALIAS="backup"; }
+step_18() {
   echo "Dump the existing database with:"
   echo "  mysqldump --single-transaction nextcloud_db > NextcloudBackup_DB_\`date +\"%Y%m%d\"\`.sql"
   echo
@@ -198,5 +218,5 @@ step_14() {
   echo "  mysql nextcloud_db < NextcloudBackup_DB_20170912.sql"
 }
 
-VERSION_SEQREV=3
+VERSION_SEQREV=5
 . sequencer.sh