1 files changed, 48 insertions, 0 deletions
diff --git a/mysql-test/include/maria_make_snapshot.inc b/mysql-test/include/maria_make_snapshot.inc
new file mode 100644
index 00000000000..b457f3e1a68
--- /dev/null
+++ b/mysql-test/include/maria_make_snapshot.inc
@@ -0,0 +1,48 @@
+# Maria helper script
+# Copies table' data and index file to other directory, or back, or compares.
+# The other directory looks like a database directory, so that we can
+# read copies from inside mysqld, that's also why we copy the frm.
+
+# "mms" is a namespace for Maria_Make_Snapshot
+
+# API:
+# 1) set one of
+# $mms_copy : to copy table from database to spare directory
+# $mms_reverse : to copy it back
+# $mms_compare_physically : to compare both byte-for-byte
+# 2) set $mms_table_to_use to a number N: table will be mysqltest.tN
+# 3) set $mms_purpose to say what this copy is for (influences the naming
+# of the spare directory).
+
+if ($mms_copy)
+{
+  --echo * copied t$mms_table_to_use for $mms_purpose
+  copy_file $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAD $MYSQLTEST_VARDIR/master-data/mysqltest_for_$mms_purpose/t$mms_table_to_use.MAD;
+  copy_file $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAI $MYSQLTEST_VARDIR/master-data/mysqltest_for_$mms_purpose/t$mms_table_to_use.MAI;
+  copy_file $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.frm $MYSQLTEST_VARDIR/master-data/mysqltest_for_$mms_purpose/t$mms_table_to_use.frm;
+}
+
+if ($mms_reverse_copy)
+{
+  # do not call this without flushing target table first!
+  --echo * copied t$mms_table_to_use back for $mms_purpose
+ -- error 0,1
+  remove_file $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAD;
+  copy_file $MYSQLTEST_VARDIR/master-data/mysqltest_for_$mms_purpose/t$mms_table_to_use.MAD $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAD;
+  -- error 0,1
+  remove_file $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAI;
+  copy_file $MYSQLTEST_VARDIR/master-data/mysqltest_for_$mms_purpose/t$mms_table_to_use.MAI $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAI;
+}
+
+if ($mms_compare_physically)
+{
+  # After the UNDO phase this is normally impossible
+  # (UNDO execution has created new log records => pages have new LSNs).
+  # So, do this only when testing REDO phase.
+  # If UNDO phase, we nevertheless compare checksums
+  # (see maria_verify_recovery.inc).
+  --echo * compared t$mms_table_to_use to old version
+  diff_files $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAD $MYSQLTEST_VARDIR/master-data/mysqltest_for_$mms_purpose/t$mms_table_to_use.MAD;
+# index file not yet recovered
+#  diff_files $MYSQLTEST_VARDIR/master-data/mysqltest/t$mms_table_to_use.MAI $MYSQLTEST_VARDIR/master-data/mysqltest_for_$mms_purpose/t$mms_table_to_use.MAI;
+}