myssh: Allow override for sql cli command through template string

script/myssh

@@ -1,5 +1,15 @@
 #!/usr/bin/env bash
 
+if [ -z $SQL_CLI_TEMPLATE ]
+then
+    if [ $(uname -s) = "Linux" ]
+    then
+        SQL_CLI_TEMPLATE='mysql --protocol=TCP -u $MYSQL_USERNAME -p$MYSQL_PASSWORD -h localhost -P 3306'
+    else
+        SQL_CLI_TEMPLATE='open \"mysql://$MYSQL_USERNAME:$MYSQL_PASSWORD@localhost:3306\" -a \"Sequel Ace\"'
+    fi
+fi
+
 [ -z $SQL_PROXY_HOST ] && SQL_PROXY_HOST="localhost"
 [ -z $SQL_PROXY_DB_PORT ] && SQL_PROXY_DB_PORT="3306"
 CONNECTION_CACHE="$HOME/.cache/sqlproxy_$SQL_PROXY_HOST"
@@ -54,12 +64,7 @@ ls_hosts() {
 }
 
 run_client() {
-    if [ $(uname -s) = "Linux" ]
-    then
-        mysql --protocol=TCP -u $1 -p$2 -h localhost -P 3306
-    else
-        open "mysql://$1:$2@localhost:3306" -a "Sequel Ace"
-    fi
+    $(eval echo $SQL_CLI_TEMPLATE)
 }
 
 MAIN_OPTION=$1
@@ -88,7 +93,7 @@ case $MAIN_OPTION in
             port_forward $TARGET_HOST
             if [ ! -z $MYSQL_USERNAME ] && [ ! -z $MYSQL_PASSWORD ]
             then
-                run_client $MYSQL_USERNAME $MYSQL_PASSWORD
+                run_client
             fi
         else
             echo "Invalid Hostname: $TARGET_HOST."