blob: 1568c177fed0c9612dfc3bce4a903c74e303fed3 (
plain)
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
|
package Git::LoadCPAN;
use 5.008;
use strict;
use warnings;
=head1 NAME
Git::LoadCPAN - Wrapper for loading modules from the CPAN (OS) or Git's own copy
=head1 DESCRIPTION
The Perl code in Git depends on some modules from the CPAN, but we
don't want to make those a hard requirement for anyone building from
source.
Therefore the L<Git::LoadCPAN> namespace shipped with Git contains
wrapper modules like C<Git::LoadCPAN::Module::Name> that will first
attempt to load C<Module::Name> from the OS, and if that doesn't work
will fall back on C<Git::FromCPAN::Module::Name> shipped with Git
itself.
Usually distributors will not ship with Git's Git::FromCPAN tree at
all, preferring to use their own packaging of CPAN modules instead.
This module is only intended to be used for code shipping in the
C<git.git> repository. Use it for anything else at your peril!
=cut
sub import {
shift;
my $caller = caller;
my %args = @_;
my $module = exists $args{module} ? delete $args{module} : die "BUG: Expected 'module' parameter!";
my $import = exists $args{import} ? delete $args{import} : die "BUG: Expected 'import' parameter!";
die "BUG: Too many arguments!" if keys %args;
# Foo::Bar to Foo/Bar.pm
my $package_pm = $module;
$package_pm =~ s[::][/]g;
$package_pm .= '.pm';
eval {
require $package_pm;
1;
} or do {
my $error = $@ || "Zombie Error";
my $Git_LoadCPAN_pm_path = $INC{"Git/LoadCPAN.pm"} || die "BUG: Should have our own path from %INC!";
require File::Basename;
my $Git_LoadCPAN_pm_root = File::Basename::dirname($Git_LoadCPAN_pm_path) || die "BUG: Can't figure out lib/Git dirname from '$Git_LoadCPAN_pm_path'!";
require File::Spec;
my $Git_pm_FromCPAN_root = File::Spec->catdir($Git_LoadCPAN_pm_root, 'FromCPAN');
die "BUG: '$Git_pm_FromCPAN_root' should be a directory!" unless -d $Git_pm_FromCPAN_root;
local @INC = ($Git_pm_FromCPAN_root, @INC);
require $package_pm;
};
if ($import) {
no strict 'refs';
*{"${caller}::import"} = sub {
shift;
use strict 'refs';
unshift @_, $module;
goto &{"${module}::import"};
};
use strict 'refs';
}
}
1;
|
