#!/usr/bin/perl
# Process `cvs log' output to get a resonable changelog
# (c) 2003 Martin Mares <mj@ucw.cz>

use Digest::MD5;
use POSIX;

while (<STDIN>) {
	chomp;
	/^$/ && next;
	/^RCS file: / || die;
	$_ = <STDIN>;
	chomp;
	my ($file) = /^Working file: (.*)$/ or die;
	#print "$file\n";
	do {
		$_ = <STDIN> or die;
	} while (!/^description:/);
	$_ = <STDIN>;
	for(;;) {
		/^======/ && last;
		if (/^------/) { $_ = <STDIN>; next; }
		/^revision / || die;
		$_ = <STDIN>;
		my ($yy,$mm,$dd,$HH,$MM,$SS) = /^date: (....)\/(..)\/(..) (..):(..):(..);/ or die;
		my $t = POSIX::mktime($SS,$MM,$HH,$dd,$mm-1,$yy-1900) or die;
		my $T = sprintf("%06d", int(($t + 1800)/3600));
		$d = "";
		while ($_ = <STDIN>) {
			/^(-----|=====)/ && last;
			$d .= $_;
		}
		my $id = "$T:" . Digest::MD5::md5_hex($d);
		if (!defined $msg{$id}) {
			$date{$id} = "$yy-$mm-$dd $HH:$MM:$SS";
			$msg{$id} = $d;
			$files{$id} = "";
		}
		$files{$id} .= "\t* $file\n";
		#print "\t$id\n";
	}
}

foreach $id (sort keys %date) {
	print "### ", $date{$id}, "\n\n";
	print $files{$id}, "\n";
	print $msg{$id}, "\n";
}