Change to Affero GPL

[yaxu]

After discussion, @felixroos and I would like to switch from GPL to the Affero GPL for it's coverage of web services. This will also match the license for Hydra. It's best to do this now before there are more substantial contributions from others.

Tagging people with merged/ongoing PRs: @puria @bwagner @ChiakiUehira @kindohm @charlieroberts @mindofmatthew @filippoguida

Please shout if you object to your changes being distributed under AGPL rather than GPL, thanks!

[yaxu]

I added the AGPL headers with this script.

Please take a look what you think (it'll be harder to make formatting tweaks etc later).

#!/usr/bin/perl -w

use strict;
use File::Basename;

my @fns = `find packages/ repl/ -regex '.*\.m?js'|grep -v node_modules`;

undef $/;
my $licence = <DATA>;

foreach my $fn (@fns) {
  chop($fn);
  my $base = basename($fn);
  open FILE, "<$fn";
  my $source = <FILE>;
  close(FILE);
  open FILE, ">$fn";
  my $tmp = $licence;
  $tmp =~ s/replaceme/$base/sg;
  print FILE $tmp;
  print FILE $source;
  close FILE;
  # unlink("$fn.tmp")
}

__DATA__
/*
replaceme - <short description TODO>
Copyright (C) 2022 <author(s) TODO> and contributors
This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/