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
|
#!perl
# Initialisation code and subroutines shared between installperl and installman
# Probably installhtml needs to join the club.
use strict;
use vars qw($Is_VMS $Is_W32 $Is_OS2 $Is_Cygwin $Is_Darwin $Is_NetWare
%opts $packlist);
use subs qw(unlink link chmod);
require File::Path;
BEGIN {
require Config;
if ($Config::Config{userelocatableinc}) {
# This might be a considered a hack. Need to get information about the
# configuration from Config.pm *before* Config.pm expands any .../
# prefixes.
#
# So we set $^X to pretend that we're the already installed perl, so
# Config.pm does its ... expansion off that location.
my $location = $Config::Config{initialinstalllocation};
die <<'OS' unless defined $location;
$Config{initialinstalllocation} is not defined - can't install a relocatable
perl without this.
OS
$^X = "$location/perl";
# And then remove all trace of ever having loaded Config.pm, so that
# it will reload with the revised $^X
undef %Config::;
delete $INC{"Config.pm"};
delete $INC{"Config_heavy.pl"};
delete $INC{"Config_git.pl"};
# You never saw us. We weren't here.
require Config;
}
Config->import;
}
if ($Config{d_umask}) {
umask(022); # umasks like 077 aren't that useful for installations
}
$Is_VMS = $^O eq 'VMS';
$Is_W32 = $^O eq 'MSWin32';
$Is_OS2 = $^O eq 'os2';
$Is_Cygwin = $^O eq 'cygwin';
$Is_Darwin = $^O eq 'darwin';
$Is_NetWare = $Config{osname} eq 'NetWare';
sub unlink {
my(@names) = @_;
my($cnt) = 0;
return scalar(@names) if $Is_VMS;
foreach my $name (@names) {
next unless -e $name;
chmod 0777, $name if ($Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare);
print " unlink $name\n" if $opts{verbose};
( CORE::unlink($name) and ++$cnt
or warn "Couldn't unlink $name: $!\n" ) unless $opts{notify};
}
return $cnt;
}
sub link {
my($from,$to) = @_;
my($success) = 0;
my $xfrom = $from;
$xfrom =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
my $xto = $to;
$xto =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
print $opts{verbose} ? " ln $xfrom $xto\n" : " $xto\n"
unless $opts{silent};
eval {
CORE::link($from, $to)
? $success++
: ($from =~ m#^/afs/# || $to =~ m#^/afs/#)
? die "AFS" # okay inside eval {}
: die "Couldn't link $from to $to: $!\n"
unless $opts{notify};
$packlist->{$xto} = { from => $xfrom, type => 'link' };
};
if ($@) {
warn "Replacing link() with File::Copy::copy(): $@";
print $opts{verbose} ? " cp $from $xto\n" : " $xto\n"
unless $opts{silent};
print " creating new version of $xto\n"
if $Is_VMS and -e $to and !$opts{silent};
unless ($opts{notify} or File::Copy::copy($from, $to) and ++$success) {
# Might have been that F::C::c can't overwrite the target
warn "Couldn't copy $from to $to: $!\n"
unless -f $to and (chmod(0666, $to), unlink $to)
and File::Copy::copy($from, $to) and ++$success;
}
$packlist->{$xto} = { type => 'file' };
}
$success;
}
sub chmod {
my($mode,$name) = @_;
return if ($^O eq 'dos');
printf " chmod %o %s\n", $mode, $name if $opts{verbose};
CORE::chmod($mode,$name)
|| warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name)
unless $opts{notify};
}
sub samepath {
my($p1, $p2) = @_;
return (lc($p1) eq lc($p2)) if ($Is_W32 || $Is_NetWare);
return 1
if $p1 eq $p2;
my ($dev1, $ino1) = stat $p1;
return 0
unless defined $dev1;
my ($dev2, $ino2) = stat $p2;
return $dev1 == $dev2 && $ino1 == $ino2;
}
sub safe_rename {
my($from,$to) = @_;
if (-f $to and not unlink($to)) {
my($i);
for ($i = 1; $i < 50; $i++) {
last if rename($to, "$to.$i");
}
warn("Cannot rename to '$to.$i': $!"), return 0
if $i >= 50; # Give up!
}
link($from,$to) || return 0;
unlink($from);
}
sub mkpath {
File::Path::mkpath(shift , $opts{verbose}, 0777) unless $opts{notify};
}
1;
|