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#!/usr/bin/perl -w
use strict;
my $symlink_farm = $ENV{'SYMLINK'} || 0;
my $link_verbose = $ENV{'VERBOSE'} || 0;
my $link_copy = $ENV{'COPYLINK'} || 0;
sub good_link ($$) {
my ($src, $dest) = @_;
# Check if the destination directory does exist
my $ddir = $dest;
$ddir =~ s#/?[^/]+$##g;
if ($ddir eq "")
{
$ddir = ".";
}
if (! -d $ddir) # Create it if not
{
system("mkdir -p $ddir");
}
# Link the files
if ($symlink_farm) {
print "Symlink: $dest => $src\n" if ($link_verbose >= 3);
if (not symlink ($src, $dest)) {
print STDERR "Symlink from $src to $dest failed: $!\n";
}
} elsif ($link_copy) {
print "Copy: $dest => $src\n" if ($link_verbose >= 3);
if (system("cp -ap $src $dest")) {
my $err_num = $? >> 8;
my $sig_num = $? & 127;
print STDERR "Copy from $src to $dest failed: cp exited with error code $err_num, signal $sig_num\n";
}
} else {
print "Hardlink: $dest => $src\n" if ($link_verbose >= 3);
if (not link ($src, $dest)) {
print STDERR "Link from $src to $dest failed: $!\n";
}
}
}
sub real_file ($) {
my $link = shift;
my ($dir, $to);
while (-l $link) {
$dir = $link;
$dir =~ s#[^/]+/?$##;
if ($to = readlink($link)) {
$link = $dir . $to;
} else {
print STDERR "Can't readlink $link: $!\n";
}
}
return $link;
}
1;
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