# BUG#34582: FLUSH LOGS does not close and reopen the binlog index
# file
#
# WHAT
# ==== 
#
# We want to test that FLUSH LOGS closes and reopens binlog index
# file.
#
# HOW
# === 
#
#  PREPARE:
#   1. create some binlog events
#   2. show index content, binlog events and binlog contents 
#      for mysql-bin.000001
#   3. copy the mysql-bin.000001 to mysql-bin-b34582.000001
#   4. change the index file so that mysql-bin.000001 is replaced 
#      with mysql-bin-b34582.000001
#   5. FLUSH the logs so that new index is closed and reopened
#
#  ASSERTIONS:
#   1. index file contents shows mysql-bin-b34582.000001 and 
#      mysql-bin.000002
#   1. show binary logs shows current index entries
#   2. binlog contents for mysql-bin-b34582.000001 are displayed
#   3. Purge binlogs up to the latest one succeeds
#   4. SHOW BINARY LOGS presents the latest one only after purging
#   5. Purged binlogs files don't exist in the filesystem
#   6. Not purged binlog file exists in the filesystem
#
#  CLEAN UP:
#   1. RESET MASTER
#

-- source include/have_log_bin.inc

RESET MASTER;

-- let $datadir= `SELECT @@datadir`
-- let $index=$datadir/master-bin.index
-- chmod 0644 $index

# action: issue one command so that binlog gets some event
CREATE TABLE t1 (a int);

-- echo ### assertion: index file contains regular entries
-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
-- eval SET @index=LOAD_FILE('$index')
-- replace_regex /\.[\\\/]master/master/
SELECT @index;

--echo ### assertion: show original binlogs
-- source include/show_binary_logs.inc

--echo ### assertion: binlog contents from regular entries
-- source include/show_binlog_events.inc

# action: copy binlogs to other names and change entries in index file
-- copy_file $datadir/master-bin.000001 $datadir/master-bin-b34582.000001
let INDEX_FILE=$index;
perl;
$file= $ENV{'INDEX_FILE'};
open(FILE, ">$file") || die "Unable to open $file.";
truncate(FILE,0);
close ($file);
EOF

-- append_file $index 
master-bin-b34582.000001
EOF

# action: should cause rotation, and creation of new binlogs
FLUSH LOGS;

# file is not used anymore - remove it (mysql closed on flush logs).
-- remove_file $datadir/master-bin.000001

-- echo ### assertion: index file contains renamed binlog and the new one
-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
-- eval SET @index=LOAD_FILE('$index')
-- replace_regex /\.[\\\/]master/master/
SELECT @index;

-- echo ### assertion: original binlog content still exists, despite we
-- echo ###            renamed and changed the index file 
-- source include/show_binlog_events.inc

-- echo ### assertion: user changed binlog index shows correct entries
-- source include/show_binary_logs.inc

DROP TABLE t1;

-- echo ### assertion: purging binlogs up to binlog created after instrumenting index file should work
-- let $current_binlog= query_get_value(SHOW MASTER STATUS, File, 1)
-- eval PURGE BINARY LOGS TO '$current_binlog'

-- echo ### assertion: show binary logs should only contain latest binlog
-- source include/show_binary_logs.inc

-- echo ### assertion: assert that binlog files were indeed purged (using file_exists calls)
-- error 1
-- file_exists $datadir/master-bin-b34852.000001

-- echo ### assertion: assert that not purged binlog file exists
-- file_exists $datadir/$current_binlog

-- echo ### assertion: show index file contents and these should match show binary logs issued above
-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
-- eval SET @index=LOAD_FILE('$index')
-- replace_regex /\.[\\\/]master/master/
SELECT @index;

RESET MASTER;
