105 lines
2.3 KiB
Perl
105 lines
2.3 KiB
Perl
#!perl -w
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# $Id: lwp-mirror.PL,v 1.18 1997/12/03 21:21:00 aas Exp $
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#
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# Simple mirror utility using LWP
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=head1 NAME
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lwp-mirror - Simple mirror utility for WWW
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=head1 SYNOPSIS
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lwp-mirror [-v] [-t timeout] <url> <local file>
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=head1 DESCRIPTION
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This program can be used to mirror a document from a WWW server. The
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document is only transfered if the remote copy is newer than the local
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copy. If the local copy is newer nothing happens.
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Use the C<-v> option to print the version number of this program.
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The timeout value specified with the C<-t> option. The timeout value
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is the time that the program will wait for response from the remote
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server before it fails. The default unit for the timeout value is
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seconds. You might append "m" or "h" to the timeout value to make it
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minutes or hours, repectively.
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Because this program is implemented using the LWP library, it only
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supports the protocols that LWP supports.
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=head1 SEE ALSO
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L<lwp-request>, L<LWP>
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=head1 AUTHOR
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Gisle Aas <aas@a.sn.no>
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=cut
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use LWP::Simple;
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use Getopt::Std;
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$progname = $0;
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$progname =~ s,.*/,,; # use basename only
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$progname =~ s/\.\w*$//; #strip extension if any
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$VERSION = sprintf("%d.%02d", q$Revision: 1.18 $ =~ /(\d+)\.(\d+)/);
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$opt_h = undef; # print usage
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$opt_v = undef; # print version
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$opt_t = undef; # timeout
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unless (getopts("hvt:")) {
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usage();
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}
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if ($opt_v) {
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require LWP;
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my $DISTNAME = 'libwww-perl-' . LWP::Version();
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die <<"EOT";
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This is lwp-mirror version $VERSION ($DISTNAME)
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Copyright 1995-1996, Gisle Aas.
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This program is free software; you can redistribute it and/or
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modify it under the same terms as Perl itself.
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EOT
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}
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$url = shift or usage();
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$file = shift or usage();
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usage() if $opt_h or @ARGV;
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if (defined $opt_t) {
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$opt_t =~ /^(\d+)([smh])?/;
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die "$progname: Illegal timeout value!\n" unless defined $1;
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$timeout = $1;
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$timeout *= 60 if ($2 eq "m");
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$timeout *= 3600 if ($2 eq "h");
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$LWP::Simple::ua->timeout($timeout);
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}
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$rc = mirror($url, $file);
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if ($rc == 304) {
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print STDERR "$progname: $file is up to date\n"
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} elsif (!is_success($rc)) {
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print STDERR "$progname: $rc ", status_message($rc), " ($url)\n";
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exit 1;
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}
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exit;
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sub usage
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{
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die <<"EOT";
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Usage: $progname [-options] <url> <file>
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-v print version number of program
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-t <timeout> Set timeout value
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EOT
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}
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