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operz |
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#!/bin/env perl -w |
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# |
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# $Id: cpan_check 1091 2007-03-07 07:00:12Z comand $ |
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# |
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# Copyright 2006 Cory Omand <comand@blastwave.org> |
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# All rights reserved. Use is subject to license terms. |
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# |
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# Redistribution and/or use, with or without modification, is |
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# permitted. This software is without warranty of any kind. The |
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# author(s) shall not be liable in the event that use of the |
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# software causes damage. |
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# |
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# cpan_check - Check CPAN for module updates. |
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# |
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use strict; |
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use Data::Dumper; |
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use File::Basename; |
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use Time::Local qw/timelocal/; |
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use vars qw/$HAS_LWP $MODULE_EXT/; |
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# Check for LWP support |
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$HAS_LWP = 0; |
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eval { |
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require LWP::UserAgent; |
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import LWP::UserAgent; |
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$HAS_LWP = 1; |
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}; |
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# Standard module extension |
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$MODULE_EXT = qr/\.(tar\.(gz|bz2)|tgz)/; |
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# Month lookup table |
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my @MONTHS = qw/Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec/; |
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my %MONTHS; |
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for (my $i = 0; $i < @MONTHS; $i++) { $MONTHS{$MONTHS[$i]} = $i } |
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# Parse a module filename to get version information |
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sub fileinfo { |
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my $file = shift; |
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return unless $file; |
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$file = basename $file; |
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my ($mname, $mvers) = $file =~ /^(.+?)[-\.\_](\d.*?)$MODULE_EXT$/; |
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return unless $mvers; |
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return ($mname, $mvers); |
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} |
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# Get a directory listing |
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sub get_listing { |
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my $dir = shift; |
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my @listing; |
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if ($HAS_LWP) { |
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my $ua = LWP::UserAgent->new(env_proxy => 1); |
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my $rsp = $ua->get($dir); |
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die "failed to list $dir: [" . $rsp->code . "] " . $rsp->message |
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unless $rsp->is_success; |
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@listing = split(/\n/, $rsp->content); |
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} |
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else { |
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@listing = `curl -s $dir`; |
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} |
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return @listing; |
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} |
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# Parse a HTML directory listing |
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sub parse_listing { |
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my $line = shift; |
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my ($file, $d, $m, $y, $H, $M); |
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($file, $d, $m, $y, $H, $M) = $line =~ |
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/<a\s+href="([^"]+)">.+<\/a>.+? # file |
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(\d{2})-(\w{3})-(\d{4})\s+ # date (DD-MMM-YYYY) |
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(\d{2}):(\d{2}) # time (HH:MM) |
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/ix; |
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unless ($file and $d and $m and $y) { |
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($file, $y, $m, $d, $H, $M) = $line =~ |
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/<a\s+href=\"([^\"]+)\">.+<\/a>.+? # file |
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(\d{4})-(\w{3})-(\d{2})\s+ # date (YYYY-MMM-DD) |
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(\d{2}):(\d{2}) # time (HH:MM) |
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/ix; |
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} |
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return ($file, $d, $m, $y, $H, $M); |
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} |
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# Get module information |
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sub get_modinfo { |
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my $moddir = shift; |
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my $modname = shift; |
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return unless $moddir and $modname; |
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my @listing = get_listing($moddir); |
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# Parse the listing... |
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my $vinfo; |
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foreach my $line (@listing) { |
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my ($file, $d, $m, $y, $H, $M) = parse_listing($line); |
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next unless $file && $file =~ /$MODULE_EXT$/; |
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my ($mname, $mver) = fileinfo($file); |
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next unless $mver and $mname; |
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next if $mname ne $modname; |
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$vinfo->{$mver} = timelocal(0, $M, $H, $d, $MONTHS{$m}, $y - 1900); |
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} |
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return $vinfo; |
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} |
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# |
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# MAIN EXECUTION |
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# |
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my $distfile = shift @ARGV; |
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die "Usage: $0 module_file" unless $distfile; |
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my $outfh; |
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my $outfile = shift @ARGV; |
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if ($outfile) { |
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open $outfh, ">>$outfile" |
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or die "Failed to open update file '$outfile': $!\n"; |
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} else { |
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$outfh = \*STDERR; |
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} |
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my ($modname, $modvers) = fileinfo($distfile); |
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die "Unable to parse module file name: $distfile" |
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unless $modname && defined $modvers; |
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# Get the distribution directory |
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my $distdir = dirname($distfile) . "/"; |
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# Get a list of modules... |
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my $info = get_modinfo($distdir, $modname) |
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or die "Unable to retrieve module information for $modname!\n"; |
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# Remove the current version. If the module has been pulled |
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# from CPAN, assume no current release (update to latest). |
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my $currel = delete $info->{$modvers} || 0; |
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# Find the versions which are newer than that one |
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my @uprev; |
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foreach my $ver (sort { $info->{$a} <=> $info->{$b} } keys %$info) { |
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push @uprev, $ver if $info->{$ver} >= $currel; |
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} |
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# Print version info |
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if (@uprev) { |
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my @ndev = grep(!/_/, @uprev); |
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my @dev = grep( /_/, @uprev); |
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if (@ndev) { |
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print "$modname $modvers:\n"; |
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my $rec = pop @ndev; |
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print " Recommended: ", $rec, "\n"; |
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print " Older: ", join(", ", @ndev), "\n" if @ndev; |
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print " Development: ", join(", ", @dev), "\n" if @dev; |
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# Output info to automate udpates |
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print $outfh "$modname|$rec", "\n"; |
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} |
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} |
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exit 0; |
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