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#!/usr/bin/env perl


# BEGIN BPS TAGGED BLOCK {{{
#
# COPYRIGHT:
#
# This software is Copyright (c) 1996-2017 Best Practical Solutions, LLC
#                                          <sales@bestpractical.com>
#
# (Except where explicitly superseded by other copyright notices)
#
#
# LICENSE:
#
# This work is made available to you under the terms of Version 2 of
# the GNU General Public License. A copy of that license should have
# been provided with this software, but in any event can be snarfed
# from www.gnu.org.
#
# This work 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
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 or visit their web page on the internet at
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
#
#
# CONTRIBUTION SUBMISSION POLICY:
#
# (The following paragraph is not intended to limit the rights granted
# to you to modify and distribute this software under the terms of
# the GNU General Public License and is only of importance to you if
# you choose to contribute your changes and enhancements to the
# community by submitting them to Best Practical Solutions, LLC.)
#
# By intentionally submitting any modifications, corrections or
# derivatives to this work, or any other work intended for use with
# Request Tracker, to Best Practical Solutions, LLC, you confirm that
# you are the copyright holder for those contributions and you grant
# Best Practical Solutions,  LLC a nonexclusive, worldwide, irrevocable,
# royalty-free, perpetual, license to use, copy, create derivative
# works based on those contributions, and sublicense and distribute
# those contributions and any derivatives thereof.
#
# END BPS TAGGED BLOCK }}}
use strict;
use warnings;
my $LICENSE  = <<'EOL';

COPYRIGHT:

This software is Copyright (c) 1996-2017 Best Practical Solutions, LLC
                                         <sales@bestpractical.com>

(Except where explicitly superseded by other copyright notices)


LICENSE:

This work is made available to you under the terms of Version 2 of
the GNU General Public License. A copy of that license should have
been provided with this software, but in any event can be snarfed
from www.gnu.org.

This work 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
General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 or visit their web page on the internet at
http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.


CONTRIBUTION SUBMISSION POLICY:

(The following paragraph is not intended to limit the rights granted
to you to modify and distribute this software under the terms of
the GNU General Public License and is only of importance to you if
you choose to contribute your changes and enhancements to the
community by submitting them to Best Practical Solutions, LLC.)

By intentionally submitting any modifications, corrections or
derivatives to this work, or any other work intended for use with
Request Tracker, to Best Practical Solutions, LLC, you confirm that
you are the copyright holder for those contributions and you grant
Best Practical Solutions,  LLC a nonexclusive, worldwide, irrevocable,
royalty-free, perpetual, license to use, copy, create derivative
works based on those contributions, and sublicense and distribute
those contributions and any derivatives thereof.

EOL

use File::Find;

my @MAKE = qw(Makefile);

File::Find::find({ no_chdir => 1, wanted => \&tag_pm}, 'lib');
for my $masondir (qw( html share/html )) {
    next unless -d $masondir;
    File::Find::find({ no_chdir => 1, wanted => \&tag_mason}, $masondir);
}
for my $bindir (qw( sbin bin etc/upgrade devel/tools )) {
    next unless -d $bindir;
    File::Find::find({ no_chdir => 1, wanted => \&tag_script}, $bindir);
}
tag_makefile ('Makefile.in') if -f 'Makefile.in';
tag_makefile ('README');


sub tag_mason {
        my $pm = $_;
        return unless (-f $pm);
        return if $pm =~ /\.(?:png|jpe?g|gif)$/;
        open( FILE, '<', $pm ) or die "Failed to open $pm";
        my $file = (join "", <FILE>);
        close (FILE);
        print "$pm - ";
        return if another_license($pm => $file) && print "has different license\n";

        my $pmlic = $LICENSE;
        $pmlic =~ s/^/%# /mg;
        $pmlic =~ s/\s*$//mg;
        if ($file =~ /^%# BEGIN BPS TAGGED BLOCK \{\{\{/ms) {
                print "has license section";
             $file =~ s/^%# BEGIN BPS TAGGED BLOCK \{\{\{(.*?)%# END BPS TAGGED BLOCK \}\}\}/%# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n%# END BPS TAGGED BLOCK }}}/ms;


        } else {
                print "no license section";
             $file ="%# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n%# END BPS TAGGED BLOCK }}}\n". $file;
        }
        $file =~ s/%# END BPS TAGGED BLOCK \}\}\}(\n+)/%# END BPS TAGGED BLOCK }}}\n/mg;
        print "\n";




        open( FILE, '>', $pm ) or die "couldn't write new file";
        print FILE $file;
        close FILE;

}


sub tag_makefile {
        my $pm = shift;
        open( FILE, '<', $pm ) or die "Failed to open $pm";
        my $file = (join "", <FILE>);
        close (FILE);
        print "$pm - ";
        return if another_license($pm => $file) && print "has different license\n";

        my $pmlic = $LICENSE;
        $pmlic =~ s/^/# /mg;
        $pmlic =~ s/\s*$//mg;
        if ($file =~ /^# BEGIN BPS TAGGED BLOCK \{\{\{/ms) {
                print "has license section";
             $file =~ s/^# BEGIN BPS TAGGED BLOCK \{\{\{(.*?)# END BPS TAGGED BLOCK \}\}\}/# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n# END BPS TAGGED BLOCK }}}/ms;


        } else {
                print "no license section";
             $file ="# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n# END BPS TAGGED BLOCK }}}\n". $file;
        }
        $file =~ s/# END BPS TAGGED BLOCK \}\}\}(\n+)/# END BPS TAGGED BLOCK }}}\n/mg;
        print "\n";




        open( FILE, '>', $pm ) or die "couldn't write new file";
        print FILE $file;
        close FILE;

}


sub tag_pm {
        my $pm = $_;
        return unless $pm =~ /\.pm/s;
        open( FILE, '<', $pm ) or die "Failed to open $pm";
        my $file = (join "", <FILE>);
        close (FILE);
        print "$pm - ";
        return if another_license($pm => $file) && print "has different license\n";

        my $pmlic = $LICENSE;
        $pmlic =~ s/^/# /mg;
        $pmlic =~ s/\s*$//mg;
        if ($file =~ /^# BEGIN BPS TAGGED BLOCK \{\{\{/ms) {
                print "has license section";
             $file =~ s/^# BEGIN BPS TAGGED BLOCK \{\{\{(.*?)# END BPS TAGGED BLOCK \}\}\}/# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n# END BPS TAGGED BLOCK }}}/ms;


        } else {
                print "no license section";
             $file ="# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n# END BPS TAGGED BLOCK }}}\n". $file;
        }
        $file =~ s/# END BPS TAGGED BLOCK \}\}\}(\n+)/# END BPS TAGGED BLOCK }}}\n\n/mg;
        print "\n";




        open( FILE, '>', $pm ) or die "couldn't write new file $pm";
        print FILE $file;
        close FILE;

}


sub tag_script {
        my $pm = $_;
        return unless (-f $pm);
        open( FILE, '<', $pm ) or die "Failed to open $pm";
        my $file = (join "", <FILE>);
        close (FILE);
        print "$pm - ";
        return if another_license($pm => $file) && print "has different license\n";

        my $pmlic = $LICENSE;
        $pmlic =~ s/^/# /msg;
        $pmlic =~ s/\s*$//mg;
        if ($file =~ /^# BEGIN BPS TAGGED BLOCK \{\{\{/ms) {
                print "has license section";
             $file =~ s/^# BEGIN BPS TAGGED BLOCK \{\{\{(.*?)# END BPS TAGGED BLOCK \}\}\}/# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n# END BPS TAGGED BLOCK }}}/ms;


        } else {
                print "no license section";
                if ($file =~ /^(#!.*?)\n/) {

            my  $lic ="# BEGIN BPS TAGGED BLOCK {{{\n$pmlic\n# END BPS TAGGED BLOCK }}}\n";
                $file =~ s/^(#!.*?)\n/$1\n$lic/;

                }
        }
        $file =~ s/# END BPS TAGGED BLOCK \}\}\}(\n+)/# END BPS TAGGED BLOCK }}}\n/mg;
        print "\n";


        open( FILE, '>', $pm ) or die "couldn't write new file";
        print FILE $file;
        close FILE;

}

sub another_license {
    my $name = shift;
    my $file = shift;

    return 1 if ($name =~ /(?:ckeditor|scriptaculous|superfish|tablesorter|farbtastic)/i);

    return 0 if $file =~ /Copyright\s+\(c\)\s+\d\d\d\d-\d\d\d\d Best Practical Solutions/i;
    return 1 if $file =~ /\b(copyright|GPL|Public Domain)\b/i; # common
    return 1 if $file =~ /\(c\)\s+\d\d\d\d(?:-\d\d\d\d)?/i; # prototype
    return 0;
}