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#!/usr/bin/perl
# Catch all in-source GPL2/3 license declarations and convert
# them to AGPL.
#
# You expected this to be using diff & patch? Well, the source
# files have all sorts of different commenting and indentation
# styles, not speaking of typos and failed uses of search and
# replace, that an attempt in using the patch(1) tool would fail
# miserably. This script instead is based on my rgrep from 1998.
# Keeping it here as it may be useful to other projects under-
# going the same pains. It is forbidden to use this script to
# convert AGPL code back to less strict licensing. Haha, just
# kidding.
#
# -symlynX
use File::Find;
$|=1;
# Recurse into current or given directories
find(\&wanted, $#ARGV >= 0 ? @ARGV : '.');
print STDERR "\n";
exit;
sub wanted {
my $name = $File::Find::name;
($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime)
= lstat;
return $File::Find::prune = 1 if /^(CVS|\.git|\.svn)$/;
# Nicer if you 'make distclean' first
return if /\.(o|pdf)$/i;
return if -d _ or -l _;
return if /afferify/; # Don't apply this to itself ;)
# No.. i didn't do it.. just being careful ;) ;)
# return unless -T _; # We don't have binaries in the repo, do we?
# We need the default variable '$_' for more important duties.
my $f = $_;
if (sysopen(I, $f, O_RDONLY)) {
$_ = &slurp(*I);
close I;
# Debugging: What's inside the file we just read?
# print STDERR '> ', $_;
if (0) {
# This code did the initial conversion. We ifdef it out.
# Good idea to have the text start with "GNUnet" rather than "This program"
if ( s#GNUnet is free software; you can redistribute it and/or modify it under the#GNUnet is free software: you can redistribute it and/or modify it# ) {
# Whoever had the idea of reformatting the GPL license text...
print STDERR "\nTrying wide style on $name\t";
# Most important thing to know in order to be able
# to read perl code: if regexps appear without any
# context, it means they are applied to the default
# variable being '$_'.
return unless s#terms of the GNU General Public License as published by the Free Software#under the terms of the GNU Affero General Public License as published#;
return unless s#^(\W*\s+)Foundation; either version \d, or \(at your option\) any later version\.#\1by the Free Software Foundation, either version 3 of the License,\n\1or (at your option) any later version.#m;
return unless s#GNUnet is distributed in the hope that it will be useful, but WITHOUT ANY#GNUnet is distributed in the hope that it will be useful, but#;
return unless s#WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR#WITHOUT ANY WARRANTY; without even the implied warranty of#;
return unless s#^(\W*\s+)A PARTICULAR PURPOSE. See the GNU General Public License for more details.#\1MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n\1Affero General Public License for more details.#m;
return unless s#^\W*\n\W*\s+You should have received a copy of the GNU General Public License along with\n\W*\s+GNUnet. see the file COPYING\. If not, .* see\s*\W*\s+<http://www.gnu.org/licenses/>\n##m;
} else {
# If this string is not in the file, leave it alone.
return unless s#GNUnet is free software; you can redistribute it and/or modify#GNUnet is free software: you can redistribute it and/or modify it#;
print STDERR "\nTrying regular style on $name\t";
# Patterns are designed to also match some typos and substitutions.
return unless s#it under the terms of the GNU General Public Lice\w+ as published#under the terms of the GNU Affero General Public License as published#;
return unless s#by the Free Software Foundation; either version \d, or \(at your#by the Free Software Foundation, either version 3 of the License,#;
return unless s#option\) any later version\.#or (at your option) any later version.#;
return unless s#General Public Lice\w+ for more details\.#Affero General Public License for more details.#;
return unless s#^\W*\n\W*\s+You should have received a copy of the GNU General Public Lice\w+\n\W*\s+along with GNUnet. see the file COPYING\. If not, write to the\n\W*\s+Free Software Foundation, Inc\., (51 Franklin Street, Fifth Floor|59 Tem ?ple Place - Suite 330),\n\W*\s+Boston, MA 0211\d-130\d, USA\.\n##m;
}
print STDERR "OK";
} else {
# This is the code in actual & current use:
return unless m#GNUnet is free software: you can redistribute it and/or modify it#;
print STDERR "\nTrying $name\t";
# There was a mistake in the replacement text!
return unless s#under the terms of the GNU General Public License as published#under the terms of the GNU Affero General Public License as published#;
print STDERR "FIXED";
}
# We directly overwrite the original file in the
# assumption that we're in a healthy revertible git.
open(O, '>', $f) or die "Cannot overwrite $f";
# Imagine, I could have left out $_ here... ;)
print O $_;
close O;
} else {
die "Cannot access $name";
}
}
# Reads a file from a stream into a variable all at once:
sub slurp {
# Perl sure gets clunky here
local(*IN) = @_;
local($save) = $/;
undef $/;
local($data) = <IN>;
$/ = $save;
return $data;
}
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