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
|
#!/usr/bin/perl
=encoding UTF-8
=head1 NAME
dh_usrlocal - migrate usr/local directories to maintainer scripts
=cut
use warnings;
use strict;
use Debian::Debhelper::Dh_Lib;
use File::Find;
use File::stat;
our $VERSION = DH_BUILTIN_VERSION;
=head1 SYNOPSIS
B<dh_usrlocal> [S<I<debhelper options>>] [B<-n>]
=head1 DESCRIPTION
B<dh_usrlocal> is a debhelper program that can be used for building packages
that will provide a subdirectory in F</usr/local> when installed.
It finds subdirectories of F<usr/local> in the package build directory, and
removes them, replacing them with maintainer script snippets (unless B<-n>
is used) to create the directories at install time, and remove them when
the package is removed, in a manner compliant with Debian policy. These
snippets are inserted into the maintainer scripts by B<dh_installdeb>. See
L<dh_installdeb(1)> for an explanation of debhelper maintainer script
snippets.
When the I<DEB_RULES_REQUIRES_ROOT> environment variable is not (effectively)
I<binary-targets>, the directories in F</usr/local> will be handled as if
they were owned by root:root (see below).
When the I<DEB_RULES_REQUIRES_ROOT> environment variable has an effective value of
I<binary-targets>, the owners, groups and permissions will be
preserved with the sole exception where the directory is owned by root:root.
If a directory is owned by root:root, then ownership will be determined
at install time. The ownership and permission bits will either be root:root
mode 0755 or root:staff mode 02775. The actual choice depends on whether
the system has F</etc/staff-group-for-usr-local> (as documented in the Debian
Policy Manual ยง9.1.2 since version 4.1.4)
=head1 OPTIONS
=over 4
=item B<-n>, B<--no-scripts>
Do not modify F<postinst>/F<prerm> scripts.
=back
=head1 NOTES
Note that this command is not idempotent. L<dh_prep(1)> should be called
between invocations of this command. Otherwise, it may cause multiple
instances of the same text to be added to maintainer scripts.
=head1 CONFORMS TO
Debian policy, version 2.2
=cut
init();
# PROMISE: DH NOOP WITHOUT tmp(usr/local) cli-options()
foreach my $package (@{$dh{DOPACKAGES}}) {
my $tmp = tmpdir($package);
if (-d "$tmp/usr/local") {
my (@dirs, @justdirs);
find({no_chdir => 1,
preprocess => sub {
# Ensure a reproducible traversal.
return sort @_;
},
postprocess => sub {
# Uninstall, unless a direct child of /usr/local.
$_ = $File::Find::dir;
s!^\Q$tmp\E!!;
push @justdirs, $_ if m!/usr/local/.*/!;
# Remove a directory after its childs.
doit('rmdir', $File::Find::dir);
},
wanted => sub {
# rmdir would fail later anyways.
error("${File::Find::name} is not a directory")
if not -d $File::Find::name;
# Install directory before its childs.
my $fn = $File::Find::name;
$fn =~ s!^\Q$tmp\E!!;
return if $fn eq '/usr/local';
# Detect some obvious cases of "this will not end
# well". We rely on what "while read dir ... ; do"
# can handle for correctness.
if ($fn =~ m{[\s!'"\$()*#;<>?@\[\]\\`|]}) {
error("Cannot generate a correct shell script for $fn due to shell metacharacters");
}
if (should_use_root()) {
my $stat = stat $File::Find::dir;
if ($stat->uid == 0 && $stat->gid == 0) {
# Figure out the ownership and permission at runtime
# (required by Policy 9.1.2)
push(@dirs, "$fn default");
} else {
my $user = getpwuid $stat->uid;
my $group = getgrgid $stat->gid;
my $mode = sprintf "%04lo", ($stat->mode & 07777);
push @dirs, "$fn $mode $user $group";
}
} else {
# Figure out the ownership and permission at runtime
# (required by Policy 9.1.2)
push(@dirs, "$fn default");
}
}}, "$tmp/usr/local");
if (! $dh{NOSCRIPTS}) {
autoscript($package,"postinst", "postinst-usrlocal",
{ 'DIRS' => join ("\n", @dirs)}) if @dirs;
autoscript($package,"prerm", "prerm-usrlocal",
{ 'JUSTDIRS' => join ("\n", @justdirs)}) if @justdirs;
}
}
}
=head1 SEE ALSO
L<debhelper(7)>
This program is a part of debhelper.
=head1 AUTHOR
Andrew Stribblehill <ads@debian.org>
=cut
|
