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# -*- cperl -*-
# Copyright (C) 2004-2006 MySQL AB
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# This is a library file used by the Perl version of mysql-test-run,
# and is part of the translation of the Bourne shell script with the
# same name.
use strict;
use Carp;
sub mtr_fromfile ($);
sub mtr_tofile ($@);
sub mtr_tonewfile($@);
sub mtr_appendfile_to_file ($$);
sub mtr_grab_file($);
sub mtr_printfile($);
sub mtr_lastlinesfromfile ($$);
# Read a whole file, stripping leading and trailing whitespace.
sub mtr_fromfile ($) {
my $file= shift;
open(FILE,"<",$file) or mtr_error("can't open file \"$file\": $!");
my $text= join('', <FILE>);
close FILE;
$text =~ s/^\s+//; # Remove starting space, incl newlines
$text =~ s/\s+$//; # Remove ending space, incl newlines
return $text;
}
sub mtr_tofile ($@) {
my $file= shift;
open(FILE,">>",$file) or mtr_error("can't open file \"$file\": $!");
print FILE join("", @_);
close FILE;
}
sub mtr_tonewfile ($@) {
my $file= shift;
open(FILE,">",$file) or mtr_error("can't open file \"$file\": $!");
print FILE join("", @_);
close FILE;
}
sub mtr_appendfile_to_file ($$) {
my $from_file= shift;
my $to_file= shift;
open(TOFILE,">>",$to_file) or mtr_error("can't open file \"$to_file\": $!");
open(FROMFILE,"<",$from_file)
or mtr_error("can't open file \"$from_file\": $!");
print TOFILE while (<FROMFILE>);
close FROMFILE;
close TOFILE;
}
# Read a whole file verbatim.
sub mtr_grab_file($) {
my $file= shift;
open(FILE, '<', $file)
or return undef;
local $/= undef;
my $data= scalar(<FILE>);
close FILE;
return $data;
}
# Print the file to STDOUT
sub mtr_printfile($) {
my $file= shift;
open(FILE, '<', $file)
or warn $!;
print while(<FILE>);
close FILE;
return;
}
sub mtr_lastlinesfromfile ($$) {
croak "usage: mtr_lastlinesfromfile(file,numlines)" unless (@_ == 2);
my ($file, $num_lines)= @_;
my $text;
open(FILE,"<",$file) or mtr_error("can't open file \"$file\": $!");
my @lines= reverse <FILE>;
close FILE;
my $size= scalar(@lines);
$num_lines= $size unless ($size >= $num_lines);
return join("", reverse(splice(@lines, 0, $num_lines)));
}
1;
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