+#!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 $packlist);
+use subs qw(unlink link chmod);
+
+use Config;
+BEGIN {
+ if ($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 doesits ... expansion off that location.
+
+ my $location = $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 $INC{"Config_heavy.pl"};
+ # You never saw us. We weren't here.
+
+ require Config;
+ Config->import;
+ }
+}
+
+if ($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 || $Is_NetWare);
+
+ if ($p1 ne $p2) {
+ my($dev1, $ino1, $dev2, $ino2);
+ ($dev1, $ino1) = stat($p1);
+ ($dev2, $ino2) = stat($p2);
+ ($dev1 == $dev2 && $ino1 == $ino2);
+ }
+ else {
+ 1;
+ }
+}
+
+1;
https://perl5.git.perl.org / perl5.git / commitdiff