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msgrcv: properly downgrade the receive buffer
[perl5.git] / install_lib.pl
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1#!perl
2
3# Initialisation code and subroutines shared between installperl and installman
4# Probably installhtml needs to join the club.
5
6use strict;
de35015f 7use vars qw($Is_VMS $Is_W32 $Is_OS2 $Is_Cygwin $Is_Darwin $Is_NetWare $Is_AmigaOS
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8 %opts $packlist);
9use subs qw(unlink link chmod);
a01f5661 10require File::Path;
b3387df1 11require File::Copy;
9e6fc21f 12
9e6fc21f 13BEGIN {
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14 require Config;
15 if ($Config::Config{userelocatableinc}) {
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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
2effe01f 21 # Config.pm does its ... expansion off that location.
9e6fc21f 22
f4df373d 23 my $location = $Config::Config{initialinstalllocation};
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24 die <<'OS' unless defined $location;
25$Config{initialinstalllocation} is not defined - can't install a relocatable
26perl without this.
27OS
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"};
46807d8e 34 delete $INC{"Config_git.pl"};
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35 # You never saw us. We weren't here.
36
37 require Config;
9e6fc21f 38 }
f4df373d 39 Config->import;
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40}
41
42if ($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 = $Config{osname} eq 'NetWare';
de35015f 52$Is_AmigaOS = $^O eq 'amigaos';
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53
54sub unlink {
55 my(@names) = @_;
56 my($cnt) = 0;
57
58 return scalar(@names) if $Is_VMS;
59
60 foreach my $name (@names) {
61 next unless -e $name;
de35015f 62 chmod 0777, $name if ($Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare || $Is_AmigaOS);
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63 print " unlink $name\n" if $opts{verbose};
64 ( CORE::unlink($name) and ++$cnt
65 or warn "Couldn't unlink $name: $!\n" ) unless $opts{notify};
66 }
67 return $cnt;
68}
69
70sub link {
71 my($from,$to) = @_;
72 my($success) = 0;
73
74 my $xfrom = $from;
75 $xfrom =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
76 my $xto = $to;
77 $xto =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
78 print $opts{verbose} ? " ln $xfrom $xto\n" : " $xto\n"
79 unless $opts{silent};
de35015f 80 my $link = $Is_AmigaOS ? \&CORE::symlink : \&CORE::link;
9e6fc21f 81 eval {
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82 $link->($from, $to)
83 ? $success++
84 : ($from =~ m#^/afs/# || $to =~ m#^/afs/#)
85 ? die "AFS" # okay inside eval {}
86 : die "Couldn't link $from to $to: $!\n"
87 unless $opts{notify};
88 $packlist->{$xto} = { from => $xfrom, type => 'link' };
89 };
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90 if ($@) {
91 warn "Replacing link() with File::Copy::copy(): $@";
92 print $opts{verbose} ? " cp $from $xto\n" : " $xto\n"
93 unless $opts{silent};
94 print " creating new version of $xto\n"
95 if $Is_VMS and -e $to and !$opts{silent};
96 unless ($opts{notify} or File::Copy::copy($from, $to) and ++$success) {
97 # Might have been that F::C::c can't overwrite the target
98 warn "Couldn't copy $from to $to: $!\n"
99 unless -f $to and (chmod(0666, $to), unlink $to)
100 and File::Copy::copy($from, $to) and ++$success;
101 }
102 $packlist->{$xto} = { type => 'file' };
103 }
104 $success;
105}
106
107sub chmod {
108 my($mode,$name) = @_;
109
110 return if ($^O eq 'dos');
111 printf " chmod %o %s\n", $mode, $name if $opts{verbose};
112 CORE::chmod($mode,$name)
113 || warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name)
114 unless $opts{notify};
115}
116
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117sub samepath {
118 my($p1, $p2) = @_;
119
120 return (lc($p1) eq lc($p2)) if ($Is_W32 || $Is_NetWare);
121
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122 return 1
123 if $p1 eq $p2;
124
125 my ($dev1, $ino1) = stat $p1;
126 return 0
127 unless defined $dev1;
128 my ($dev2, $ino2) = stat $p2;
129
130 return $dev1 == $dev2 && $ino1 == $ino2;
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131}
132
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133sub safe_rename {
134 my($from,$to) = @_;
135 if (-f $to and not unlink($to)) {
136 my($i);
137 for ($i = 1; $i < 50; $i++) {
138 last if rename($to, "$to.$i");
139 }
140 warn("Cannot rename to '$to.$i': $!"), return 0
141 if $i >= 50; # Give up!
142 }
143 link($from,$to) || return 0;
144 unlink($from);
145}
146
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147sub mkpath {
148 File::Path::mkpath(shift , $opts{verbose}, 0777) unless $opts{notify};
149}
150
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151sub unixtoamiga
152{
153 my $unixpath = shift;
154
155 my @parts = split("/",$unixpath);
156 my $isdir = 0;
157 $isdir = 1 if substr($unixpath,-1) eq "/";
158
159 my $first = 1;
160 my $amigapath = "";
161
162 my $i = 0;
163
164 for($i = 0; $i <= $#parts;$i++)
165 {
166 next if $parts[$i] eq ".";
167 if($parts[$i] eq "..")
168 {
169 $parts[$i] = "/";
170 }
171 if($i == 0)
172 {
173 if($parts[$i] eq "")
174 {
175 $amigapath .= $parts[$i + 1] . ":";
176 $i++;
177 next;
178 }
179 }
180 $amigapath .= $parts[$i];
181 if($i != $#parts)
182 {
183 $amigapath .= "/" unless $parts[$i] eq "/" ;
184 }
185 else
186 {
187 if($isdir)
188 {
189 $amigapath .= "/" unless $parts[$i] eq "/" ;
190 }
191 }
192 }
193
194 return $amigapath;
195}
196
197sub amigaprotect
198{
199 my ($file,$bits) = @_;
200 print "PROTECT: File $file\n";
201 system("PROTECT $file $bits")
202 unless $opts{notify};
203}
204
9e6fc21f 2051;