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
|
# Copyright (C) 2010 Modestas Vainius <modax@debian.org>
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <http://www.gnu.org/licenses/>
package Debian::PkgKde;
use File::Spec;
use Cwd qw(realpath);
use base qw(Exporter);
our @EXPORT = qw(get_program_name
printmsg info warning errormsg error syserr usageerr);
our @EXPORT_OK = qw(find_datalibdir setup_datalibdir find_exe_in_path DATALIBDIR);
# Determine datalib for current script. It depends on the context the script
# was executed from.
use constant DATALIBDIR => '/usr/share/pkg-kde-tools/lib';
sub find_datalibdir {
my @hintfiles = @_;
my @dirs;
if ($0 =~ m@^(.+)/[^/]+$@) {
push @dirs, "$1/datalib";
}
push @dirs, DATALIBDIR;
# Verify if the dir and hint files exist
my $founddir;
foreach my $dir (@dirs) {
my $ok;
if ($dir && -d $dir) {
$ok = 1;
foreach my $hint (@hintfiles) {
unless (-e "$dir/$hint") {
$ok = 0;
last;
}
}
}
if ($ok) {
$founddir = $dir;
last;
}
}
return $founddir;
}
# Add DATALIBDIR to @INC if the script is NOT being run from the source tree.
sub setup_datalibdir {
my $dir = find_datalibdir(@_);
if ($dir) {
unshift @INC, DATALIBDIR if $dir eq DATALIBDIR;
} else {
error("unable to locate pkg-kde-tools library directory");
}
return $dir;
}
sub find_exe_in_path {
my ($exe, @exclude) = @_;
my @realexclude;
# Canonicalize files to exclude
foreach my $exc (@exclude) {
if (my $realexc = realpath($exc)) {
push @realexclude, $realexc;
}
}
if (File::Spec->file_name_is_absolute($exe)) {
return $exe;
} elsif ($ENV{PATH}) {
foreach my $dir (split /:/, $ENV{PATH}) {
my $path = realpath(File::Spec->catfile($dir, $exe));
if (-x $path && ! grep({ $path eq $_ } @realexclude)) {
return $path;
}
}
}
return undef;
}
{
my $progname;
sub get_program_name {
unless (defined $progname) {
$progname = ($0 =~ m,/([^/]+)$,) ? $1 : $0;
}
return $progname;
}
}
sub format_message {
my $type = shift;
my $format = shift;
my $msg = sprintf($format, @_);
return ((defined $type) ?
get_program_name() . ": $type: " : "") . "$msg\n";
}
sub printmsg {
print STDERR format_message(undef, @_);
}
sub info {
print STDERR format_message("info", @_);
}
sub warning {
warn format_message("warning", @_);
}
sub syserr {
my $msg = shift;
die format_message("error", "$msg: $!", @_);
}
sub errormsg {
print STDERR format_message("error", @_);
}
sub error {
die format_message("error", @_);
}
sub usageerr {
die format_message("usage", @_);
}
1;
|
