This file is indexed.

/usr/lib/mysql-testsuite/include/truncate_file.inc is in percona-server-test-5.6 5.6.22-rel71.0-0ubuntu4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
# truncate a giving file, all contents of the file are be cleared

if (!$file)
{
  --echo Please assign a file name to $file!!
  exit;
}

let TRUNCATE_FILE= $file;

perl;
my $filename = $ENV{'TRUNCATE_FILE'}; 
$filename =~ s/\/\//\//;
open FILE, '>', $filename || die "Can not open file $filename";
close FILE;
EOF