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9e6fc21 Merge common code from installperl and installman into install_lib.pl
Nicholas Clark authored
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 $packlist);
9 use subs qw(unlink link chmod);
10
11 use Config;
12 BEGIN {
13 if ($Config{userelocatableinc}) {
14 # This might be a considered a hack. Need to get information about the
15 # configuration from Config.pm *before* Config.pm expands any .../
16 # prefixes.
17 #
18 # So we set $^X to pretend that we're the already installed perl, so
19 # Config.pm doesits ... expansion off that location.
20
21 my $location = $Config{initialinstalllocation};
22 die <<'OS' unless defined $location;
23 $Config{initialinstalllocation} is not defined - can't install a relocatable
24 perl without this.
25 OS
26 $^X = "$location/perl";
27 # And then remove all trace of ever having loaded Config.pm, so that
28 # it will reload with the revised $^X
29 undef %Config::;
30 delete $INC{"Config.pm"};
31 delete $INC{"Config_heavy.pl"};
46807d8 @demerphq much better git related version numbering in our (*nix for now) build…
demerphq authored
32 delete $INC{"Config_git.pl"};
9e6fc21 Merge common code from installperl and installman into install_lib.pl
Nicholas Clark authored
33 # You never saw us. We weren't here.
34
35 require Config;
36 Config->import;
37 }
38 }
39
40 if ($Config{d_umask}) {
41 umask(022); # umasks like 077 aren't that useful for installations
42 }
43
44 $Is_VMS = $^O eq 'VMS';
45 $Is_W32 = $^O eq 'MSWin32';
46 $Is_OS2 = $^O eq 'os2';
47 $Is_Cygwin = $^O eq 'cygwin';
48 $Is_Darwin = $^O eq 'darwin';
49 $Is_NetWare = $Config{osname} eq 'NetWare';
50
51 sub unlink {
52 my(@names) = @_;
53 my($cnt) = 0;
54
55 return scalar(@names) if $Is_VMS;
56
57 foreach my $name (@names) {
58 next unless -e $name;
59 chmod 0777, $name if ($Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare);
60 print " unlink $name\n" if $opts{verbose};
61 ( CORE::unlink($name) and ++$cnt
62 or warn "Couldn't unlink $name: $!\n" ) unless $opts{notify};
63 }
64 return $cnt;
65 }
66
67 sub link {
68 my($from,$to) = @_;
69 my($success) = 0;
70
71 my $xfrom = $from;
72 $xfrom =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
73 my $xto = $to;
74 $xto =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
75 print $opts{verbose} ? " ln $xfrom $xto\n" : " $xto\n"
76 unless $opts{silent};
77 eval {
78 CORE::link($from, $to)
79 ? $success++
80 : ($from =~ m#^/afs/# || $to =~ m#^/afs/#)
81 ? die "AFS" # okay inside eval {}
82 : die "Couldn't link $from to $to: $!\n"
83 unless $opts{notify};
84 $packlist->{$xto} = { from => $xfrom, type => 'link' };
85 };
86 if ($@) {
87 warn "Replacing link() with File::Copy::copy(): $@";
88 print $opts{verbose} ? " cp $from $xto\n" : " $xto\n"
89 unless $opts{silent};
90 print " creating new version of $xto\n"
91 if $Is_VMS and -e $to and !$opts{silent};
92 unless ($opts{notify} or File::Copy::copy($from, $to) and ++$success) {
93 # Might have been that F::C::c can't overwrite the target
94 warn "Couldn't copy $from to $to: $!\n"
95 unless -f $to and (chmod(0666, $to), unlink $to)
96 and File::Copy::copy($from, $to) and ++$success;
97 }
98 $packlist->{$xto} = { type => 'file' };
99 }
100 $success;
101 }
102
103 sub chmod {
104 my($mode,$name) = @_;
105
106 return if ($^O eq 'dos');
107 printf " chmod %o %s\n", $mode, $name if $opts{verbose};
108 CORE::chmod($mode,$name)
109 || warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name)
110 unless $opts{notify};
111 }
112
113
114 sub samepath {
115 my($p1, $p2) = @_;
116
117 return (lc($p1) eq lc($p2)) if ($Is_W32 || $Is_NetWare);
118
119 if ($p1 ne $p2) {
120 my($dev1, $ino1, $dev2, $ino2);
121 ($dev1, $ino1) = stat($p1);
122 ($dev2, $ino2) = stat($p2);
4c3ca3f @toddr RT 74444 - install_lib.pl emits warnings when installperl is run with…
toddr authored
123 ($dev1 ~~ $dev2 && $ino1 ~~ $ino2);
9e6fc21 Merge common code from installperl and installman into install_lib.pl
Nicholas Clark authored
124 }
125 else {
126 1;
127 }
128 }
129
130 1;
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