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<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
author HackBot
date Sat, 14 May 2016 14:54:38 +0000
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8044:711c038a7dce 8045:a16537d2fe07
1 #!perl
2
3 # Initialisation code and subroutines shared between installperl and installman
4 # Probably installhtml needs to join the club.
5
6 use strict;
7 use vars qw($Is_VMS $Is_W32 $Is_OS2 $Is_Cygwin $Is_Darwin $Is_NetWare
8 %opts $packlist);
9 use subs qw(unlink link chmod);
10 require File::Path;
11 require File::Copy;
12
13 BEGIN {
14 require Config;
15 if ($Config::Config{userelocatableinc}) {
16 # This might be a considered a hack. Need to get information about the
17 # configuration from Config.pm *before* Config.pm expands any .../
18 # prefixes.
19 #
20 # So we set $^X to pretend that we're the already installed perl, so
21 # Config.pm does its ... expansion off that location.
22
23 my $location = $Config::Config{initialinstalllocation};
24 die <<'OS' unless defined $location;
25 $Config{initialinstalllocation} is not defined - can't install a relocatable
26 perl without this.
27 OS
28 $^X = "$location/perl";
29 # And then remove all trace of ever having loaded Config.pm, so that
30 # it will reload with the revised $^X
31 undef %Config::;
32 delete $INC{"Config.pm"};
33 delete $INC{"Config_heavy.pl"};
34 delete $INC{"Config_git.pl"};
35 # You never saw us. We weren't here.
36
37 require Config;
38 }
39 Config->import;
40 }
41
42 if ($Config{d_umask}) {
43 umask(022); # umasks like 077 aren't that useful for installations
44 }
45
46 $Is_VMS = $^O eq 'VMS';
47 $Is_W32 = $^O eq 'MSWin32';
48 $Is_OS2 = $^O eq 'os2';
49 $Is_Cygwin = $^O eq 'cygwin';
50 $Is_Darwin = $^O eq 'darwin';
51 $Is_NetWare = $Config{osname} eq 'NetWare';
52
53 sub unlink {
54 my(@names) = @_;
55 my($cnt) = 0;
56
57 return scalar(@names) if $Is_VMS;
58
59 foreach my $name (@names) {
60 next unless -e $name;
61 chmod 0777, $name if ($Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare);
62 print " unlink $name\n" if $opts{verbose};
63 ( CORE::unlink($name) and ++$cnt
64 or warn "Couldn't unlink $name: $!\n" ) unless $opts{notify};
65 }
66 return $cnt;
67 }
68
69 sub link {
70 my($from,$to) = @_;
71 my($success) = 0;
72
73 my $xfrom = $from;
74 $xfrom =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
75 my $xto = $to;
76 $xto =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
77 print $opts{verbose} ? " ln $xfrom $xto\n" : " $xto\n"
78 unless $opts{silent};
79 eval {
80 CORE::link($from, $to)
81 ? $success++
82 : ($from =~ m#^/afs/# || $to =~ m#^/afs/#)
83 ? die "AFS" # okay inside eval {}
84 : die "Couldn't link $from to $to: $!\n"
85 unless $opts{notify};
86 $packlist->{$xto} = { from => $xfrom, type => 'link' };
87 };
88 if ($@) {
89 warn "Replacing link() with File::Copy::copy(): $@";
90 print $opts{verbose} ? " cp $from $xto\n" : " $xto\n"
91 unless $opts{silent};
92 print " creating new version of $xto\n"
93 if $Is_VMS and -e $to and !$opts{silent};
94 unless ($opts{notify} or File::Copy::copy($from, $to) and ++$success) {
95 # Might have been that F::C::c can't overwrite the target
96 warn "Couldn't copy $from to $to: $!\n"
97 unless -f $to and (chmod(0666, $to), unlink $to)
98 and File::Copy::copy($from, $to) and ++$success;
99 }
100 $packlist->{$xto} = { type => 'file' };
101 }
102 $success;
103 }
104
105 sub chmod {
106 my($mode,$name) = @_;
107
108 return if ($^O eq 'dos');
109 printf " chmod %o %s\n", $mode, $name if $opts{verbose};
110 CORE::chmod($mode,$name)
111 || warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name)
112 unless $opts{notify};
113 }
114
115 sub samepath {
116 my($p1, $p2) = @_;
117
118 return (lc($p1) eq lc($p2)) if ($Is_W32 || $Is_NetWare);
119
120 return 1
121 if $p1 eq $p2;
122
123 my ($dev1, $ino1) = stat $p1;
124 return 0
125 unless defined $dev1;
126 my ($dev2, $ino2) = stat $p2;
127
128 return $dev1 == $dev2 && $ino1 == $ino2;
129 }
130
131 sub safe_rename {
132 my($from,$to) = @_;
133 if (-f $to and not unlink($to)) {
134 my($i);
135 for ($i = 1; $i < 50; $i++) {
136 last if rename($to, "$to.$i");
137 }
138 warn("Cannot rename to '$to.$i': $!"), return 0
139 if $i >= 50; # Give up!
140 }
141 link($from,$to) || return 0;
142 unlink($from);
143 }
144
145 sub mkpath {
146 File::Path::mkpath(shift , $opts{verbose}, 0777) unless $opts{notify};
147 }
148
149 1;