# Copyright (c) 2006, 2007 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# Utils.pm
# - provides utility functions for OpenSLX
# -----------------------------------------------------------------------------
package OpenSLX::Utils;
use strict;
use vars qw(@ISA @EXPORT $VERSION);
use Exporter;
$VERSION = 1.01;
@ISA = qw(Exporter);
@EXPORT = qw(
©File &fakeFile &linkFile &slurpFile &followLink
);
################################################################################
### Module implementation
################################################################################
use Carp;
use File::Basename;
use OpenSLX::Basics;
sub copyFile
{
my $fileName = shift;
my $targetDir = shift;
my $targetFileName = shift || '';
system("mkdir -p $targetDir") unless -d $targetDir;
my $target = "$targetDir/$targetFileName";
vlog(2, _tr("copying '%s' to '%s'", $fileName, $target));
if (system("cp -p $fileName $target")) {
die _tr("unable to copy file '%s' to dir '%s' (%s)",
$fileName, $target, $!);
}
}
sub fakeFile
{
my $fullPath = shift;
my $targetDir = dirname($fullPath);
system("mkdir", "-p", $targetDir) unless -d $targetDir;
if (system("touch", $fullPath)) {
die _tr("unable to create file '%s' (%s)",
$fullPath, $!);
}
}
sub linkFile
{
my $linkTarget = shift;
my $linkName = shift;
my $targetDir = dirname($linkName);
system("mkdir -p $targetDir") unless -d $targetDir;
if (system("ln -sfn $linkTarget $linkName")) {
die _tr("unable to create link '%s' to '%s' (%s)",
$linkName, $linkTarget, $!);
}
}
sub slurpFile
{
my $file = shift;
my $mayNotExist = shift;
if (!open(F, "< $file") && !$mayNotExist) {
die _tr("could not open file '%s' for reading! (%s)", $file, $!);
}
local $/ = undef;
my $text = <F>;
close(F);
return $text;
}
sub followLink
{
my $path = shift;
my $prefixedPath = shift || '';
my $target;
while (-l "$path") {
$target = readlink "$path";
if (substr($target, 1, 1) eq '/') {
$path = "$prefixedPath/$target";
} else {
$path = $prefixedPath.dirname($path).'/'.$target;
}
}
return $path;
}
1;