# See the file LICENSE for redistribution information. 
#
# Copyright (c) 2007,2008 Oracle.  All rights reserved.
# 
# $Id: backup.tcl,v 1.5 2008/01/08 20:58:53 bostic Exp $
#
# TEST	backup
# TEST 	Test of hotbackup functionality. 
# TEST	
# TEST	Do all the of the following tests with and without 
# TEST	the -c (checkpoint) option.  Make sure that -c and 
# TEST	-d (data_dir) are not allowed together. 
# TEST
# TEST	(1) Test that plain and simple hotbackup works. 
# TEST	(2) Test with -data_dir (-d). 
# TEST	(3) Test updating an existing hot backup (-u).
# TEST	(4) Test with absolute path. 
# TEST	(5) Test with DB_CONFIG (-D), setting log_dir (-l)
# TEST		and data_dir (-d).
# TEST	(6) DB_CONFIG and update.  
# TEST	(7) Repeat hot backup (non-update) with DB_CONFIG and 
# TEST		existing directories. 

proc backup { {nentries 1000} } {
	source ./include.tcl
	global util_path

	set omethod "-btree"
	set testfile "foo.db"
	set backupdir "backup"

	# Set up small logs so we quickly create more than one. 
	set log_size 20000
	set env_flags " -create -txn -home $testdir -log_max $log_size"
	set db_flags " -create $omethod -auto_commit $testfile "

	foreach option { checkpoint nocheckpoint } {
		if { $option == "checkpoint" } {
			set c "c"
			set msg "with checkpoint"
		} else {
			set c ""
			set msg "without checkpoint"
		}
		puts "Backuptest $msg."
		
		env_cleanup $testdir
		env_cleanup $backupdir 
	
		set env [eval {berkdb_env} $env_flags]
		set db [eval {berkdb_open} -env $env $db_flags]
		set txn [$env txn]
		populate $db $omethod $txn $nentries 0 0 
		$txn commit
		
		# Backup directory is empty before hot backup.
		set files [glob -nocomplain $backupdir/*]
		error_check_good no_files [llength $files] 0

		puts "\tBackuptest.a: Hot backup to directory $backupdir."
		if {[catch { eval exec $util_path/db_hotbackup\
		    -${c}vh $testdir -b $backupdir } res ] } {
			error "FAIL: $res"
		}
		
		set logfiles [glob $backupdir/log*]
		error_check_bad found_logs [llength $logfiles] 0
		error_check_good found_db [file exists $backupdir/$testfile] 1 

		error_check_good db_close [$db close] 0
		error_check_good env_close [$env close] 0
		env_cleanup $testdir
	
		puts "\tBackuptest.b: Hot backup with data_dir."
		file mkdir $testdir/data1
		error_check_good db_data_dir\
		    [file exists $testdir/data1/$testfile] 0
	
		# Create a new env with data_dir.
		set env [eval {berkdb_env_noerr} $env_flags -data_dir data1]
		set db [eval {berkdb_open} -env $env $db_flags]
		set txn [$env txn]
		populate $db $omethod $txn $nentries 0 0 
		$txn commit

		# Check that data went into data_dir.
		error_check_good db_data_dir\
		    [file exists $testdir/data1/$testfile] 1

		# You may not specify both -d (data_dir) and -c (checkpoint).
		set msg2 "cannot specify -d and -c"	
		if { $option == "checkpoint" } {
			catch {eval exec $util_path/db_hotbackup\
			     -${c}vh $testdir -b $backupdir\
			     -d $testdir/data1} res
			error_check_good c_and_d [is_substr $res $msg2] 1
		} else {
			if {[catch {eval exec $util_path/db_hotbackup\
			    -${c}vh $testdir -b $backupdir\
			    -d $testdir/data1} res] } {
				error "FAIL: $res"
			}
			# Check that logs and db are in backupdir.
			error_check_good db_backup\
			    [file exists $backupdir/$testfile] 1
			set logfiles [glob $backupdir/log*]
			error_check_bad logs_backed_up [llength $logfiles] 0
		}

		# Add more data and try the "update" flag. 
		puts "\tBackuptest.c: Update existing hot backup."
		set txn [$env txn]
		populate $db $omethod $txn [expr $nentries * 2] 0 0 
		$txn commit
	
		if { $option == "checkpoint" } {
			catch {eval exec $util_path/db_hotbackup\
			     -${c}vuh $testdir -b backup -d $testdir/data1} res
			error_check_good c_and_d [is_substr $res $msg2] 1
		} else {
			if {[catch {eval exec $util_path/db_hotbackup\
			    -${c}vuh $testdir -b backup\
			    -d $testdir/data1} res] } {
				error "FAIL: $res"
			}
			# There should be more log files now.
			set newlogfiles [glob $backupdir/log*]
			error_check_bad more_logs $newlogfiles $logfiles
		}
	
		puts "\tBackuptest.d: Hot backup with full path."
		set fullpath [pwd]
		if { $option == "checkpoint" } {
			catch {eval exec $util_path/db_hotbackup\
			    -${c}vh $testdir -b backup\
			    -d $fullpath/$testdir/data1} res
			error_check_good c_and_d [is_substr $res $msg2] 1
		} else {
			if {[catch {eval exec $util_path/db_hotbackup\
			    -${c}vh $testdir -b backup\
			    -d $fullpath/$testdir/data1} res] } {
				error "FAIL: $res"
			}
		}
	
		error_check_good db_close [$db close] 0
		error_check_good env_close [$env close] 0
		env_cleanup $testdir
		env_cleanup $backupdir
		
		puts "\tBackuptest.e: Hot backup with DB_CONFIG."
		backuptest_makeconfig
	
		set env [eval {berkdb_env_noerr} $env_flags]
		set db [eval {berkdb_open} -env $env $db_flags]
		set txn [$env txn]
		populate $db $omethod $txn $nentries 0 0 
		$txn commit

		if { $option == "checkpoint" } {
			catch {eval exec $util_path/db_hotbackup\
			    -${c}vh $testdir -b $backupdir -l $testdir/logs\
			    -d $testdir/data1} res
			error_check_good c_and_d [is_substr $res $msg2] 1
		} else {
			if {[catch {eval exec $util_path/db_hotbackup\
			    -${c}vh $testdir -b $backupdir -l $testdir/logs\
			    -d $testdir/data1} res] } {
				error "FAIL: $res"
			}
			# Check that logs and db are in backupdir.
			error_check_good db_backup\
			    [file exists $backupdir/$testfile] 1
			set logfiles [glob $backupdir/log*]
			error_check_bad logs_backed_up [llength $logfiles] 0
		}

		set txn [$env txn]
		populate $db $omethod $txn [expr $nentries * 2] 0 0 
		$txn commit

		puts "\tBackuptest.f:\
		    Hot backup update with DB_CONFIG."
		if { $option == "checkpoint" } {
			catch {eval exec $util_path/db_hotbackup\
			    -${c}vuh $testdir -b backup -l $testdir/logs\
			    -d $testdir/data1} res
			error_check_good c_and_d [is_substr $res $msg2] 1
		} else {
			if {[catch {eval exec $util_path/db_hotbackup\
			    -${c}vuh $testdir -b backup -l $testdir/logs\
			    -d $testdir/data1} res] } {
				error "FAIL: $res"
			}
			# There should be more log files now.
			set newlogfiles [glob $backupdir/log*]
			error_check_bad more_logs $newlogfiles $logfiles
		}

		# Repeat with directories already there to test cleaning.
		# We are not doing an update this time.
		puts "\tBackuptest.g:\
		    Hot backup with DB_CONFIG (non-update)."
		if { [catch { eval exec $util_path/db_hotbackup\
		    -${c}vh $testdir -b $backupdir -D } res] } {
			error "FAIL: $res"
		}

		error_check_good db_close [$db close] 0
		error_check_good env_close [$env close] 0
	}
}

proc backuptest_makeconfig { } {
	source ./include.tcl

	file mkdir $testdir/logs
	file mkdir $testdir/data1

	set cid [open $testdir/DB_CONFIG w]
	puts $cid "set_lg_dir logs"
	puts $cid "set_data_dir data1"
	close $cid
}