Additions for --add-drop-database

client/client_priv.h:
  Adding option for drop database
client/mysqldump.c:
  Work for adding of --add-drop-database
mysql-test/r/mysqldump.result:
  New test results for --add-drop-databases
mysql-test/t/mysqldump.test:
  Tests for --add-drop-databases

client/client_priv.h

@@ -49,5 +49,5 @@ enum options_client
 #ifdef HAVE_NDBCLUSTER_DB
   ,OPT_NDBCLUSTER,OPT_NDB_CONNECTSTRING
 #endif
-  ,OPT_IGNORE_TABLE,OPT_INSERT_IGNORE
+  ,OPT_IGNORE_TABLE,OPT_INSERT_IGNORE,OPT_DROP_DATABASE
 };

client/mysqldump.c

@@ -85,7 +85,7 @@ static my_bool  verbose=0,tFlag=0,dFlag=0,quick= 1, extended_insert= 1,
 		opt_delete_master_logs=0, tty_password=0,
 		opt_single_transaction=0, opt_comments= 0, opt_compact= 0,
 		opt_hex_blob=0, opt_order_by_primary=0, opt_ignore=0,
-                opt_complete_insert= 0;
+                opt_complete_insert= 0, opt_drop_database= 0;
 static ulong opt_max_allowed_packet, opt_net_buffer_length;
 static MYSQL mysql_connection,*sock=0;
 static my_bool insert_pat_inited=0;
@@ -159,6 +159,9 @@ static struct my_option my_long_options[] =
    "Dump all the databases. This will be same as --databases with all databases selected.",
    (gptr*) &opt_alldbs, (gptr*) &opt_alldbs, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
    0, 0},
+  {"add-drop-database", OPT_DROP_DATABASE, "Add a 'DROP DATABASE' before each create.",
+   (gptr*) &opt_drop_database, (gptr*) &opt_drop_database, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
+   0},
   {"add-drop-table", OPT_DROP, "Add a 'drop table' before each create.",
    (gptr*) &opt_drop, (gptr*) &opt_drop, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0,
    0},
@@ -1119,9 +1122,9 @@ static uint getTableStructure(char *table, char* db)
   else
     dynstr_set(&insert_pat, "");
 
-  insert_option= (opt_delayed && opt_ignore) ? " DELAYED IGNORE " : 
-    opt_delayed ? " DELAYED " :
-    opt_ignore ? " IGNORE " : "";
+  insert_option= ((opt_delayed && opt_ignore) ? " DELAYED IGNORE " : 
+                  opt_delayed ? " DELAYED " :
+                  opt_ignore ? " IGNORE " : "");
 
   if (verbose)
     fprintf(stderr, "-- Retrieving table structure for table %s...\n", table);
@@ -2043,12 +2046,20 @@ static int init_dumping(char *database)
         if (mysql_query(sock, qbuf) || !(dbinfo = mysql_store_result(sock)))
         {
           /* Old server version, dump generic CREATE DATABASE */
+          if (opt_drop_database)
+            fprintf(md_result_file,
+                    "\n/*!40000 DROP DATABASE IF EXISTS %s;*/\n",
+                    qdatabase);
 	  fprintf(md_result_file,
 		  "\nCREATE DATABASE /*!32312 IF NOT EXISTS*/ %s;\n",
 		  qdatabase);
 	}
 	else
         {
+          if (opt_drop_database)
+            fprintf(md_result_file,
+                    "\n/*!40000 DROP DATABASE IF EXISTS %s*/;\n",
+                    qdatabase);
 	  row = mysql_fetch_row(dbinfo);
 	  if (row[1])
 	  {

mysql-test/r/mysqldump.result

@@ -1311,3 +1311,41 @@ UNLOCK TABLES;
 /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
 
 drop table t1;
+CREATE TABLE t1 (a int);
+INSERT INTO t1 VALUES (1),(2),(3);
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
+/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
+/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
+/*!40101 SET NAMES utf8 */;
+/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
+/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
+/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
+
+/*!40000 DROP DATABASE IF EXISTS `test`*/;
+
+CREATE DATABASE /*!32312 IF NOT EXISTS*/ `test` /*!40100 DEFAULT CHARACTER SET latin1 */;
+
+USE `test`;
+DROP TABLE IF EXISTS `t1`;
+CREATE TABLE `t1` (
+  `a` int(11) default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+
+
+/*!40000 ALTER TABLE `t1` DISABLE KEYS */;
+LOCK TABLES `t1` WRITE;
+INSERT INTO `t1` VALUES (1),(2),(3);
+UNLOCK TABLES;
+/*!40000 ALTER TABLE `t1` ENABLE KEYS */;
+
+/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
+/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
+/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
+/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
+/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
+/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
+
+DROP TABLE t1;

mysql-test/t/mysqldump.test

@@ -534,3 +534,12 @@ create table t1 (
 insert into t1 (F_8d3bba7425e7c98c50f52ca1b52d3735) values (1);
 --exec $MYSQL_DUMP --skip-comments -c test
 drop table t1;
+
+#
+# Test for --add-drop-database
+#
+
+CREATE TABLE t1 (a int);
+INSERT INTO t1 VALUES (1),(2),(3);
+--exec $MYSQL_DUMP --add-drop-database --skip-comments --databases test
+DROP TABLE t1;