searchidx: disable CoW for SQLite and Xapian under btrfs

[public-inbox.git] / t / nodatacow.t

diff --git a/t/nodatacow.t b/t/nodatacow.t
new file mode 100644 (file)
index 0000000..87b6bdf
--- /dev/null
+++ b/t/nodatacow.t
@@ -0,0 +1,34 @@
+#!perl -w
+# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use strict;
+use Test::More;
+use File::Temp qw(tempfile);
+use PublicInbox::TestCommon;
+use PublicInbox::Spawn qw(which);
+use_ok 'PublicInbox::NDC_PP';
+
+SKIP: {
+       my $nr = 2;
+       skip 'test is Linux-only', $nr if $^O ne 'linux';
+       my $dir = $ENV{BTRFS_TESTDIR};
+       skip 'BTRFS_TESTDIR not defined', $nr unless defined $dir;
+       skip 'chattr(1) not installed', $nr unless which('chattr');
+       my $lsattr = which('lsattr') or skip 'lsattr(1) not installed', $nr;
+       my ($fh, $name) = tempfile(DIR => $dir, UNLINK => 1);
+       BAIL_OUT "tempfile: $!" unless $fh && defined($name);
+       my $pp_sub = \&PublicInbox::NDC_PP::set_nodatacow;
+       $pp_sub->(fileno($fh));
+       my $res = xqx([$lsattr, $name]);
+       like($res, qr/C/, "`C' attribute set with pure Perl");
+
+       my $ic_sub = \&PublicInbox::Spawn::set_nodatacow;
+       $pp_sub == $ic_sub and
+               skip 'Inline::C or Linux kernel headers missing', 1;
+       ($fh, $name) = tempfile(DIR => $dir, UNLINK => 1);
+       $ic_sub->(fileno($fh));
+       $res = xqx([$lsattr, $name]);
+       like($res, qr/C/, "`C' attribute set with Inline::C");
+};
+
+done_testing;