#!/usr/bin/perl -w 
# mklinks v 1.13 (c) Steve McIntyre <stevem@chiark.greenend.org.uk>
# Released under GPL 31 Mar 1999
# See the file COPYING for license details
# Released as part of the slink_cd package, not much use standalone
#
# Given a list of *files* on stdin, will work through them replacing
# links into binary-all as appropriate, and will also fix the
# boot-disks current/ symlink as necessary. Designed to work with the
# "genlinks" option in slink_cd.
#
# Takes no parameters. Inspired by the "flatten" script by Jens Ritter

# $1 is the debug level
# We extensively work on $_!
while (<STDIN>)
{
	chop;
	if ( -l )
	{
		# Check if we have a file that we can link to binary-all
		if ( /binary-(i386|alpha|sparc|powerpc|arm|hurd-i386|m68k)\/.*/ )
		{
			$allfile = $_;
			$allfile =~ s/binary-\w*/binary-all/;
			$allfile =~ s/\.\///;
			if ( -e $allfile)
			{
				# We have a winner!
				unlink;
				if ( /non-US/ ) 
				{
					# broken layout...
					symlink( "../../$allfile", $_);
				}
				else
				{
					symlink( "../../../$allfile", $_);
				}
			}
		}

	    # And also check for the "current" boot-disks sym-link - this
	    # will break the sym-links farm when we try to link to it later...
		if ( /disks-(i386|alpha|sparc|powerpc|arm|hurd-i386|m68k)\/current$/ )
		{
			if($1)
			{
				print "Fixing the disks-ARCH/current sym-link for our purposes\n";
			}
			$currentdir = $_;
			$diskdir = readlink $currentdir;
			unlink $currentdir;
			mkdir $currentdir,0755;
			opendir(DIR, "$diskdir/" ) || die "can't opendir $diskdir: $!";
			while ($file = readdir(DIR))
			{
				if( ! -d "$diskdir/$file" )
				{
					symlink( "$diskdir/$file","$currentdir/$file" );
				}
			}
			closedir DIR;
		}
	}
}