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9e6fc21f |
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 $INC{"Config_heavy.pl"}; |
32 | # You never saw us. We weren't here. |
33 | |
34 | require Config; |
35 | Config->import; |
36 | } |
37 | } |
38 | |
39 | if ($Config{d_umask}) { |
40 | umask(022); # umasks like 077 aren't that useful for installations |
41 | } |
42 | |
43 | $Is_VMS = $^O eq 'VMS'; |
44 | $Is_W32 = $^O eq 'MSWin32'; |
45 | $Is_OS2 = $^O eq 'os2'; |
46 | $Is_Cygwin = $^O eq 'cygwin'; |
47 | $Is_Darwin = $^O eq 'darwin'; |
48 | $Is_NetWare = $Config{osname} eq 'NetWare'; |
49 | |
50 | sub unlink { |
51 | my(@names) = @_; |
52 | my($cnt) = 0; |
53 | |
54 | return scalar(@names) if $Is_VMS; |
55 | |
56 | foreach my $name (@names) { |
57 | next unless -e $name; |
58 | chmod 0777, $name if ($Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare); |
59 | print " unlink $name\n" if $opts{verbose}; |
60 | ( CORE::unlink($name) and ++$cnt |
61 | or warn "Couldn't unlink $name: $!\n" ) unless $opts{notify}; |
62 | } |
63 | return $cnt; |
64 | } |
65 | |
66 | sub link { |
67 | my($from,$to) = @_; |
68 | my($success) = 0; |
69 | |
70 | my $xfrom = $from; |
71 | $xfrom =~ s/^\Q$opts{destdir}\E// if $opts{destdir}; |
72 | my $xto = $to; |
73 | $xto =~ s/^\Q$opts{destdir}\E// if $opts{destdir}; |
74 | print $opts{verbose} ? " ln $xfrom $xto\n" : " $xto\n" |
75 | unless $opts{silent}; |
76 | eval { |
77 | CORE::link($from, $to) |
78 | ? $success++ |
79 | : ($from =~ m#^/afs/# || $to =~ m#^/afs/#) |
80 | ? die "AFS" # okay inside eval {} |
81 | : die "Couldn't link $from to $to: $!\n" |
82 | unless $opts{notify}; |
83 | $packlist->{$xto} = { from => $xfrom, type => 'link' }; |
84 | }; |
85 | if ($@) { |
86 | warn "Replacing link() with File::Copy::copy(): $@"; |
87 | print $opts{verbose} ? " cp $from $xto\n" : " $xto\n" |
88 | unless $opts{silent}; |
89 | print " creating new version of $xto\n" |
90 | if $Is_VMS and -e $to and !$opts{silent}; |
91 | unless ($opts{notify} or File::Copy::copy($from, $to) and ++$success) { |
92 | # Might have been that F::C::c can't overwrite the target |
93 | warn "Couldn't copy $from to $to: $!\n" |
94 | unless -f $to and (chmod(0666, $to), unlink $to) |
95 | and File::Copy::copy($from, $to) and ++$success; |
96 | } |
97 | $packlist->{$xto} = { type => 'file' }; |
98 | } |
99 | $success; |
100 | } |
101 | |
102 | sub chmod { |
103 | my($mode,$name) = @_; |
104 | |
105 | return if ($^O eq 'dos'); |
106 | printf " chmod %o %s\n", $mode, $name if $opts{verbose}; |
107 | CORE::chmod($mode,$name) |
108 | || warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name) |
109 | unless $opts{notify}; |
110 | } |
111 | |
112 | |
113 | sub samepath { |
114 | my($p1, $p2) = @_; |
115 | |
116 | return (lc($p1) eq lc($p2)) if ($Is_W32 || $Is_NetWare); |
117 | |
118 | if ($p1 ne $p2) { |
119 | my($dev1, $ino1, $dev2, $ino2); |
120 | ($dev1, $ino1) = stat($p1); |
121 | ($dev2, $ino2) = stat($p2); |
122 | ($dev1 == $dev2 && $ino1 == $ino2); |
123 | } |
124 | else { |
125 | 1; |
126 | } |
127 | } |
128 | |
129 | 1; |