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
151
152
153
154
155
156
157
158
159
160
161
162
|
#!/usr/bin/perl -w
=head1 NAME
dh_perl - calculates Perl dependencies and cleans up after MakeMaker
=cut
use strict;
use Config;
use File::Find;
use Debian::Debhelper::Dh_Lib;
=head1 SYNOPSIS
B<dh_perl> [S<I<debhelper options>>] [B<-d>] [S<I<library dirs> ...>]
=head1 DESCRIPTION
B<dh_perl> is a debhelper program that is responsible for generating
the B<${perl:Depends}> substitutions and adding them to substvars files.
The program will look at Perl scripts and modules in your package,
and will use this information to generate a dependency on B<perl> or
B<perlapi>. The dependency will be substituted into your package's F<control>
file wherever you place the token B<${perl:Depends}>.
B<dh_perl> also cleans up empty directories that MakeMaker can generate when
installing Perl modules.
=head1 OPTIONS
=over 4
=item B<-d>
In some specific cases you may want to depend on B<perl-base> rather than the
full B<perl> package. If so, you can pass the -d option to make B<dh_perl> generate
a dependency on the correct base package. This is only necessary for some
packages that are included in the base system.
Note that this flag may cause no dependency on B<perl-base> to be generated at
all. B<perl-base> is Essential, so its dependency can be left out, unless a
versioned dependency is needed.
=item B<-V>
By default, scripts and architecture independent modules don't depend
on any specific version of B<perl>. The B<-V> option causes the current
version of the B<perl> (or B<perl-base> with B<-d>) package to be specified.
=item I<library dirs>
If your package installs Perl modules in non-standard
directories, you can make B<dh_perl> check those directories by passing their
names on the command line. It will only check the F<vendorlib> and F<vendorarch>
directories by default.
=back
=head1 CONFORMS TO
Debian policy, version 3.8.3
Perl policy, version 1.20
=cut
init();
my $vendorlib = substr $Config{vendorlib}, 1;
my $vendorarch = substr $Config{vendorarch}, 1;
# Cleaning the paths given on the command line
foreach (@ARGV) {
s#/$##;
s#^/##;
}
my $perl = 'perl';
# If -d is given, then the dependency is on perl-base rather than perl.
$perl .= '-base' if $dh{D_FLAG};
my $version;
# dependency types
use constant PROGRAM => 1;
use constant PM_MODULE => 2;
use constant XS_MODULE => 4;
use constant ARCHDEP_MODULE => 8;
foreach my $package (@{$dh{DOPACKAGES}}) {
my $tmp=tmpdir($package);
next unless -d $tmp;
# Check also for alternate locations given on the command line
my @dirs = grep -d, map "$tmp/$_", $vendorlib, $vendorarch, @ARGV;
# Look for perl modules and check where they are installed
my $deps = 0;
find sub {
return unless -f;
$deps |= PM_MODULE if /\.pm$/;
$deps |= XS_MODULE if /\.so$/;
$deps |= ARCHDEP_MODULE
if $File::Find::dir =~ /\Q$vendorarch\E/;
}, @dirs if @dirs;
# find scripts
find sub {
return unless -f and (-x or /\.pl$/);
return if $File::Find::dir=~/\/usr\/share\/doc\//;
local *F;
return unless open F, $_;
if (read F, local $_, 32 and m%^#!\s*(/usr/bin/perl|/usr/bin/env\s+perl)\s%) {
$deps |= PROGRAM;
}
close F;
}, $tmp;
if ($deps) {
my $version="";
if ($deps & XS_MODULE or $dh{V_FLAG_SET}) {
($version) = `dpkg -s $perl` =~ /^Version:\s*(\S+)/m
unless $version;
$version = ">= $version";
}
# no need to depend on an un-versioned perl-base -- it's
# essential
addsubstvar($package, "perl:Depends", $perl, $version)
unless $perl eq 'perl-base' && ! length($version);
# add perlapi-<ver> for XS modules and other modules
# installed into vendorarch
addsubstvar($package, "perl:Depends",
"perlapi-" . ($Config{debian_abi} || $Config{version}))
if $deps & ( XS_MODULE | ARCHDEP_MODULE );
}
# MakeMaker always makes lib and share dirs, but typically
# only one directory is installed into.
foreach my $dir ("$tmp/$vendorlib", "$tmp/$vendorarch") {
if (-d $dir) {
doit("rmdir", "--ignore-fail-on-non-empty", "--parents",
"$dir");
}
}
}
=head1 SEE ALSO
L<debhelper(7)>
This program is a part of debhelper.
=head1 AUTHOR
Brendan O'Dea <bod@debian.org>
=cut
|
