初版

build/lib/mysql/mysql-test/include/rpl_diff.inc

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+# ==== Purpose ====
+#
+# Diff the output of a statement on all configured servers (usually
+# master and slave).
+#
+#
+# ==== Usage =====
+#
+# --let $rpl_diff_statement= SELECT * FROM t1 WHERE a < 100
+# [--let $rpl_diff_servers= <server1>,<server2>,...<serverN>]
+# --source include/rpl_diff.inc
+#
+# Parameters:
+#   $rpl_diff_statement
+#     Statement to check. For each compared server, this script will
+#     start a new client and pass this statement to the client.
+#     Note: This string will be evaluated as a single-quote-escaped
+#     SQL string and hence must be quoted as such.  In particular, any
+#     single quotes in this string must be escaped.
+#
+#   $rpl_diff_servers
+#     By default, this file compares all servers configured by
+#     rpl_init.inc.  You can set $diff_servers to a comma-separated
+#     list of numbers: only the servers identified by these numbers
+#     will be compared.
+#
+#   $rpl_diff_database
+#     By default, the statement will be executed on the database
+#     'test'.  If $rpl_diff_database is set, the statement will be
+#     executed on the database named $rpl_diff_database instead.
+
+
+--let $include_filename= rpl_diff.inc
+--source include/begin_include_file.inc
+
+
+if (!$rpl_diff_statement)
+{
+  --die ERROR IN TEST: you must set $rpl_diff_statement before you source include/rpl_diff.inc
+}
+
+
+# Sync.
+--source include/rpl_sync.inc
+
+
+# Get database name.
+--let $_rpl_diff_database= $rpl_diff_database
+if (`SELECT '$_rpl_diff_database' = ''`)
+{
+  --let $_rpl_diff_database= test
+}
+
+
+# Generate list of servers.
+--let $_rpl_diff_servers= $rpl_diff_servers
+if (!$_rpl_diff_servers)
+{
+  --let $_rpl_server_i= $rpl_server_count
+  --let $_rpl_diff_servers= 
+  while ($_rpl_server_i)
+  {
+    --let $_rpl_diff_servers= $_rpl_server_i,$_rpl_diff_servers
+    --dec $_rpl_server_i
+  }
+}
+if ($rpl_debug)
+{
+  --echo \$rpl_diff_servers= '$_rpl_diff_servers'
+}
+
+
+if (!$rpl_debug)
+{
+  --disable_query_log
+}
+
+
+# Generate file containing $rpl_diff_statement. We don't pass the
+# statement on the command line, because it would be subject to shell
+# substitutions.
+--let $write_to_file= GENERATE
+--let $write_var= $rpl_diff_statement
+--source include/write_var_to_file.inc
+--let $_rpl_diff_statement_file= $write_to_file
+
+
+# Compare all servers.
+--let $_rpl_diff_first= 1
+while ($_rpl_diff_servers)
+{
+  # Set $_rpl_diff_server_i to the first number in the list
+  --let $_rpl_diff_server_i= `SELECT SUBSTRING_INDEX('$_rpl_diff_servers', ',', 1)`
+  # Remove $_rpl_diff_server_i from the list
+  --let $_rpl_diff_servers= `SELECT SUBSTRING('$_rpl_diff_servers', LENGTH('$_rpl_diff_server_i') + 2)`
+
+  # Execute statement
+  --let $_rpl_diff_file= $MYSQLTEST_VARDIR/tmp/_rpl_diff_server-$_rpl_diff_server_i.tmp
+  --exec $MYSQL --defaults-group-suffix=.$_rpl_diff_server_i $_rpl_diff_database < $_rpl_diff_statement_file > $_rpl_diff_file
+
+  # Compare
+  if (!$_rpl_diff_first)
+  {
+    if ($rpl_debug)
+    {
+      --echo diffing $_rpl_diff_file and $_rpl_diff_prev_file
+    }
+    --diff_files $_rpl_diff_file $_rpl_diff_prev_file
+    --remove_file $_rpl_diff_prev_file
+  }
+  --let $_rpl_diff_prev_file= $_rpl_diff_file
+  --let $_rpl_diff_first= 0
+}
+--remove_file $_rpl_diff_prev_file
+
+
+--let $include_filename= rpl_diff.inc
+--source include/end_include_file.inc