1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
# 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(
copyFile fakeFile linkFile slurpFile spitFile followLink unshiftHereDoc
);
################################################################################
### Module implementation
################################################################################
use Carp;
use File::Basename;
use OpenSLX::Basics;
sub copyFile
{
my $fileName = shift || croak 'need to pass in a fileName!';
my $targetDir = shift || croak 'need to pass in target dir!';
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")) {
croak(
_tr(
"unable to copy file '%s' to dir '%s' (%s)",
$fileName, $target, $!
)
);
}
return;
}
sub fakeFile
{
my $fullPath = shift || croak 'need to pass in full path!';
my $targetDir = dirname($fullPath);
system("mkdir", "-p", $targetDir) unless -d $targetDir;
if (system("touch", $fullPath)) {
croak(_tr("unable to create file '%s' (%s)", $fullPath, $!));
}
return;
}
sub linkFile
{
my $linkTarget = shift || croak 'need to pass in link target!';
my $linkName = shift || croak 'need to pass in link name!';
my $targetDir = dirname($linkName);
system("mkdir -p $targetDir") unless -d $targetDir;
if (system("ln -sfn $linkTarget $linkName")) {
croak(
_tr(
"unable to create link '%s' to '%s' (%s)",
$linkName, $linkTarget, $!
)
);
}
return;
}
sub slurpFile
{
my $fileName = shift || confess 'need to pass in fileName!';
my $flags = shift || {};
checkFlags($flags, ['failIfMissing']);
my $failIfMissing
= exists $flags->{failIfMissing} ? $flags->{failIfMissing} : 1;
local $/;
my $fh;
if (!open($fh, '<', $fileName)) {
return '' unless $failIfMissing;
croak _tr("could not open file '%s' for reading! (%s)", $fileName, $!);
}
my $content = <$fh>;
close($fh)
or croak _tr("unable to close file '%s' (%s)\n", $fileName, $!);
return $content;
}
sub spitFile
{
my $fileName = shift || croak 'need to pass in a fileName!';
my $content = shift;
my $fh;
open($fh, '>', $fileName)
or croak _tr("unable to create file '%s' (%s)\n", $fileName, $!);
print $fh $content
or croak _tr("unable to print to file '%s' (%s)\n", $fileName, $!);
close($fh)
or croak _tr("unable to close file '%s' (%s)\n", $fileName, $!);
return;
}
sub followLink
{
my $path = shift || croak 'need to pass in a path!';
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;
}
sub unshiftHereDoc
{
my $content = shift;
return $content unless $content =~ m{^(\s+)};
my $shift = length($1);
return
join "\n",
map { substr($_, $shift); }
split m{\n}, $content;
}
1;
|
