Added --log-basename to mysqld to allow one to set the prefix for all logs with one command

Changed test suite to use --log-basename (to get the code tested)
Added --sync-sys=1 to test suite to speed it up.
Better error messages if something goes wrong with mysql_install_db


mysql-test/Makefile.am:
  Removed not existing directory
mysql-test/lib/My/ConfigFactory.pm:
  Use log-basename
  We had to also set 'log_error' as some test was explicitely using the old name
  Added 'sync-sys=1' to speed up test suite
mysql-test/r/variables-notembedded.result:
  Updated test results (variable relay_log is now set)
mysql-test/suite/binlog/t/binlog_delete_and_flush_index-master.opt:
  Force specific names for some log files.
mysql-test/suite/binlog/t/binlog_index-master.opt:
  Force specific names for some log files.
mysql-test/suite/binlog/t/binlog_stm_unsafe_warning-master.opt:
  Force specific names for some log files.
mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test:
  Better error message if something goes wrong
mysql-test/suite/rpl/r/rpl_flushlog_loop.result:
  Updated results
mysql-test/suite/rpl/rpl_1slave_base.cnf:
  Use --log-basename
scripts/mysql_install_db.sh:
  More information to --help
  Write url to knowledge base if something goes wrong
  Fail at once if we can't create a database directory (no reason to continue and write a screenful of not related text)
scripts/mysqld_safe.sh:
  Also allow one to use --data for --datadir (common shortening)
  Added support for --log-basename
  Fail at once if we can't create a log directory
  Fixed bug where we used a pid file name without '.pid' extension
sql/log.cc:
  Create a log file name trough my_once_alloc()  (To get it automaticly freed at exit)
sql/mysql_priv.h:
  Added new prototype
sql/mysqld.cc:
  Added support for --log-basename
  Better help for a lot of log-filename related variables.
sql/rpl_rli.cc:
  Write information that one can use --log-basename
sql/set_var.cc:
  Add log_basename as a readonly variable

mysql-test/Makefile.am

@@ -86,7 +86,7 @@ TEST_DIRS = t r include std_data std_data/parts collections \
 	suite/federated \
 	suite/pbxt/t suite/pbxt/r suite/pbxt \
 	suite/vcol suite/vcol/t suite/vcol/r suite/vcol/inc \
-	suite/oqgraph suite/oqgraph/t suite/oqgraph/r suite/oqgraph/include \
+	suite/oqgraph suite/oqgraph/t suite/oqgraph/r  \
 	suite/percona suite/sphinx \
 	suite/funcs_1 suite/funcs_1/bitdata \
 	suite/funcs_1/include suite/funcs_1/lib suite/funcs_1/r \

mysql-test/lib/My/ConfigFactory.pm

@@ -200,6 +200,7 @@ my @mysqld_rules=
   (
  { 'basedir' => sub { return shift->{ARGS}->{basedir}; } },
  { 'tmpdir' => \&fix_tmpdir },
+ { 'log-basename' => sub { return "mysqld" } },
  { 'character-sets-dir' => \&fix_charset_dir },
  { 'language' => \&fix_language },
  { 'datadir' => \&fix_datadir },
@@ -208,6 +209,7 @@ my @mysqld_rules=
  { 'port' => \&fix_port },
  { '#extra-port' => \&fix_port },
  { 'socket' => \&fix_socket },
+ { 'log-error' => \&fix_log_error },
  { '#log-error' => \&fix_log_error },
  { 'general-log' => sub { return 1; } },
  { 'general-log-file' => \&fix_log },
@@ -216,6 +218,7 @@ my @mysqld_rules=
  { '#user' => sub { return shift->{ARGS}->{user} || ""; } },
  { '#password' => sub { return shift->{ARGS}->{password} || ""; } },
  { 'server-id' => \&fix_server_id, },
+ { 'sync-sys'  => sub { return 1; } },
  # By default, prevent the started mysqld to access files outside of vardir
  { 'secure-file-priv' => sub { return shift->{ARGS}->{vardir}; } },
  { 'ssl-ca' => \&fix_ssl_ca },

mysql-test/r/variables-notembedded.result

@@ -33,12 +33,12 @@ ERROR HY000: Variable 'log_slave_updates' is a read only variable
 #
 SHOW VARIABLES like 'relay_log';
 Variable_name	Value
-relay_log	
+relay_log	mysqld-relay-bin
 SELECT @@session.relay_log;
 ERROR HY000: Variable 'relay_log' is a GLOBAL variable
 SELECT @@global.relay_log;
 @@global.relay_log
-NULL
+mysqld-relay-bin
 SET @@session.relay_log= 'x';
 ERROR HY000: Variable 'relay_log' is a read only variable
 SET @@global.relay_log= 'x';
@@ -46,12 +46,12 @@ ERROR HY000: Variable 'relay_log' is a read only variable
 #
 SHOW VARIABLES like 'relay_log_index';
 Variable_name	Value
-relay_log_index	
+relay_log_index	mysqld-relay-bin.index
 SELECT @@session.relay_log_index;
 ERROR HY000: Variable 'relay_log_index' is a GLOBAL variable
 SELECT @@global.relay_log_index;
 @@global.relay_log_index
-NULL
+mysqld-relay-bin.index
 SET @@session.relay_log_index= 'x';
 ERROR HY000: Variable 'relay_log_index' is a read only variable
 SET @@global.relay_log_index= 'x';

mysql-test/suite/binlog/t/binlog_delete_and_flush_index-master.opt

@@ -0,0 +1 @@
+--log-bin=master-bin --log-bin-index=master-bin

mysql-test/suite/binlog/t/binlog_index-master.opt

@@ -1 +1 @@
---force-restart --skip-stack-trace --test-expect-abort --log-warnings=0
+--force-restart --skip-stack-trace --test-expect-abort --log-warnings=0 --log-bin=master-bin --log-bin-index=master-bin

mysql-test/suite/binlog/t/binlog_stm_unsafe_warning-master.opt

@@ -1 +1 @@
---binlog-ignore-db=b42851 --log-error
+--binlog-ignore-db=b42851 --log-error --log-bin=master-bin --log-bin-index=master-bin

mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test

@@ -101,6 +101,7 @@ if(!`select LENGTH('$log_error_')`)
   # does not know the location of its .err log, use default location
   let $log_error_ = $MYSQLTEST_VARDIR/log/mysqld.1.err;
 }
+
 # Assign env variable LOG_ERROR
 let LOG_ERROR=$log_error_;
 
@@ -109,8 +110,9 @@ let LOG_ERROR=$log_error_;
 
 perl;
   use strict;
+  use Cwd;
   my $log_error= $ENV{'LOG_ERROR'} or die "LOG_ERROR not set";
-  open(FILE, "$log_error") or die("Unable to open $log_error: $!\n");
+  open(FILE, "$log_error") or die("Unable to open '$log_error' from directory " . cwd() . "\n");
   my $count = () = grep(/Bug#46265/g,<FILE>);
   print "Occurrences: $count\n";
   close(FILE);

mysql-test/suite/rpl/r/rpl_flushlog_loop.result

@@ -2,7 +2,7 @@ include/rpl_init.inc [topology=1->2->1]
 show variables like 'relay_log%';
 Variable_name	Value
 relay_log	master-relay-bin
-relay_log_index	
+relay_log_index	master-relay-bin.index
 relay_log_info_file	relay-log.info
 relay_log_purge	ON
 relay_log_space_limit	0

mysql-test/suite/rpl/rpl_1slave_base.cnf

@@ -6,8 +6,9 @@
 # Run the master.sh script before starting this process
 #!run-master-sh
 
-log-bin=                 master-bin
-relay-log=               master-relay-bin
+log-basename=            master
+# log-bin=                 master-bin
+# relay-log=               master-relay-bin
 
 [mysqld.2]
 # Run the slave.sh script before starting this process
@@ -17,7 +18,8 @@ relay-log=               master-relay-bin
 # starting the mysqld
 #!use-slave-opt
 
-relay-log=                  slave-relay-bin
+log-basename=               slave
+# relay-log=                  slave-relay-bin
 
 init-rpl-role=              slave
 log-slave-updates