#!/usr/bin/perl
# Intelligently updates gloval.h version/srcdate
open(G, "global.h") or die("Coldn't open global.h: $!\n");
open(O, ">global.h.$$") or die("Couldn't open global.h.$$ for write: $!\n");

while (<G>) {
	chomp;
	if (/VERSION\[\]\s+\=\s+\"(.+?)\"/) {
		my $ver = update_ver($1);
		print O ("char VERSION[]\t\t= \"$ver\"\;\n");
		next;
	}
	if (/SRCDATE\[\]\s+\=/) {
		chomp(my $date = `date +"%B %d, %Y"`);
		print O ("char SRCDATE[]\t\t= \"$date\"\;\n");
		next;
	}
	print O ("$_\n");
}

close(O);
close(G);
system("mv global.h.$$ global.h");

sub update_ver {
	my $cur = $_[0];
	my ($class, $major, $minor) = split(/\./, $cur);

	if ($minor =~ /([A-z]+)(\d+)/) {
		print("12 - $1 $2\n");
		my $str = $1; my $patch = $2; $patch++;
		$minor =~ s/p\d+//;
		return("$class.$major.$minor$str$patch");
	}

	$minor++;
	return("$class.$major.$minor");
}