#!/usr/bin/perl

# Attempt to break the GFDL so that the "redeeming" part of the
# license gets in the window /after/ the triggering part.  c/cruft
# handles this case correctly now and we don't want to mess that up
# later.

use strict;
use warnings;

# Keep in sync with checks/cruft
use constant BLOCK_SIZE => 16_384;

my ($rootdir) = @ARGV;
my $dir = "$rootdir/debian/src";
my $file = "$dir/good.texi";

unless (-d $dir) {
    mkdir $dir or die "mkdir $dir: $!";
}

my $slash = '/';
my $gfdl_start = <<EOT ;
Permission is granted to copy, distribute and${slash}or modify this
document under the terms of the GNU Free Documentation License,
version 1.3 or any later version published by the Free Software
Foundation;
EOT

my $gfdl_end = <<EOT;
with no Invariant Sections, no Front-Cover Texts and
no Back-Cover Texts.  A copy of the license is included in the
section entitled "GNU Free Documentation License".
EOT

my $fill = BLOCK_SIZE - length $gfdl_start;
my $prefix = ' ' x ($fill - 1);

open my $fd, '>', $file or die "open $file: $!";

print {$fd} $prefix, "\n";
print {$fd} $gfdl_start;
print {$fd} $gfdl_end;

close $fd or die "close $file: $!";