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# Copyright (c) 2021-2023, PostgreSQL Global Development Group
# Test how pg_rewind reacts to extra files and directories in the data dirs.
use strict;
use warnings;
use PostgreSQL::Test::Utils;
use Test::More;
use File::Find;
use FindBin;
use lib $FindBin::RealBin;
use RewindTest;
sub run_test
{
my $test_mode = shift;
RewindTest::setup_cluster($test_mode);
RewindTest::start_primary();
my $test_primary_datadir = $node_primary->data_dir;
# Create a subdir and files that will be present in both
mkdir "$test_primary_datadir/tst_both_dir";
append_to_file "$test_primary_datadir/tst_both_dir/both_file1",
"in both1";
append_to_file "$test_primary_datadir/tst_both_dir/both_file2",
"in both2";
mkdir "$test_primary_datadir/tst_both_dir/both_subdir/";
append_to_file
"$test_primary_datadir/tst_both_dir/both_subdir/both_file3",
"in both3";
RewindTest::create_standby($test_mode);
# Create different subdirs and files in primary and standby
my $test_standby_datadir = $node_standby->data_dir;
mkdir "$test_standby_datadir/tst_standby_dir";
append_to_file "$test_standby_datadir/tst_standby_dir/standby_file1",
"in standby1";
append_to_file "$test_standby_datadir/tst_standby_dir/standby_file2",
"in standby2";
append_to_file
"$test_standby_datadir/tst_standby_dir/standby_file3 with 'quotes'",
"in standby3";
mkdir "$test_standby_datadir/tst_standby_dir/standby_subdir/";
append_to_file
"$test_standby_datadir/tst_standby_dir/standby_subdir/standby_file4",
"in standby4";
mkdir "$test_primary_datadir/tst_primary_dir";
append_to_file "$test_primary_datadir/tst_primary_dir/primary_file1",
"in primary1";
append_to_file "$test_primary_datadir/tst_primary_dir/primary_file2",
"in primary2";
mkdir "$test_primary_datadir/tst_primary_dir/primary_subdir/";
append_to_file
"$test_primary_datadir/tst_primary_dir/primary_subdir/primary_file3",
"in primary3";
RewindTest::promote_standby();
RewindTest::run_pg_rewind($test_mode);
# List files in the data directory after rewind. All the files that
# were present in the standby should be present after rewind, and
# all the files that were added on the primary should be removed.
my @paths;
find(
sub {
push @paths, $File::Find::name
if $File::Find::name =~ m/.*tst_.*/;
},
$test_primary_datadir);
@paths = sort @paths;
# File::Find converts backslashes to slashes in the newer Perl
# versions. To support all Perl versions, do the same conversion
# for Windows before comparing the paths.
if ($windows_os)
{
for my $filename (@paths)
{
$filename =~ s{\\}{/}g;
}
$test_primary_datadir =~ s{\\}{/}g;
}
is_deeply(
\@paths,
[
"$test_primary_datadir/tst_both_dir",
"$test_primary_datadir/tst_both_dir/both_file1",
"$test_primary_datadir/tst_both_dir/both_file2",
"$test_primary_datadir/tst_both_dir/both_subdir",
"$test_primary_datadir/tst_both_dir/both_subdir/both_file3",
"$test_primary_datadir/tst_standby_dir",
"$test_primary_datadir/tst_standby_dir/standby_file1",
"$test_primary_datadir/tst_standby_dir/standby_file2",
"$test_primary_datadir/tst_standby_dir/standby_file3 with 'quotes'",
"$test_primary_datadir/tst_standby_dir/standby_subdir",
"$test_primary_datadir/tst_standby_dir/standby_subdir/standby_file4"
],
"file lists match");
RewindTest::clean_rewind_test();
return;
}
# Run the test in both modes.
run_test('local');
run_test('remote');
done_testing();
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