#!/usr/bin/env perl

# Created on: 2008-03-13 15:48:46
# Create by:  ivanw
# $Id$
# $Revision$, $HeadURL$, $Date$
# $Revision$, $Source$, $Date$

use strict;
use warnings;
use Getopt::Long;
use Pod::Usage;
use Data::Dumper qw/Dumper/;
use English qw/ -no_match_vars /;
use FindBin qw/$Bin/;
use Path::Tiny;
use App::diffdir;

our $VERSION = 0.8;
my ($name)   = $PROGRAM_NAME =~ m{^.*/(.*?)$}mxs;

my %option = (
    exclude => ['(?:[.]bzr|[.]svn|CVS|RCS|,v|[~-]$|[.]rpmnew|[.]git|[.]sw[op]$|[.]netrwhist$)|/(?:blib|_build)/|/(?:tags|Build|MYMETA.yml|Debian_CPANTS.txt|[.]vimtagsdisplay)$'],
    cmd     => 'diff',
    cp      => 0,
    rm      => 0,
    join    => 0,
    script  => 0,
    link    => 0,
    verbose => 0,
    man     => 0,
    help    => 0,
    VERSION => 0,
);

if ( !@ARGV ) {
    pod2usage( -verbose => 1 );
}

main();
exit 0;

sub main {

    Getopt::Long::Configure('bundling');
    GetOptions(
        \%option,
        'exclude|e=s',
        'cmd|command|c=s',
        'script|s!',
        'cp|cp-missing|m!',
        'rm|remove-extra|r!',
        'same|same-files|S',
        'join|j',
        'follow|f!',
        'fast|F!',
        'ignore_all_space|ignore-space-change|b',
        'ignore_space_change|ignore-all-space|w',
        'missing_dirs|missing-dirs|d!',
        'size_diff|size-diff|D',
        'exec|E!',
        'verbose|v+',
        'man',
        'help',
        'version',
    ) or pod2usage(2);
    my @dirs = @ARGV;

    if ( $option{'version'} ) {
        print "$name Version = $VERSION\n";
        exit 1;
    }
    elsif ( $option{'man'} ) {
        pod2usage( -verbose => 2 );
    }
    elsif ( $option{'help'} ) {
        pod2usage( -verbose => 1 );
    }

    # do stuff here
    my $dd = App::diffdir->new( %option );
    my %files = $dd->differences(@ARGV);
    my $sep = @ARGV > 2 ? "\n\t" : "\t";

    for my $file ( sort keys %files ) {
        print "$file\n";
        for my $dir ( @ARGV[ 1 .. $#ARGV ] ) {
            print "\t$files{$file}{$dir}{diff}\n";
        }
    }

    return;
}

__DATA__

=head1 NAME

diffdir - Compares two or more directories for files that differ

=head1 VERSION

This documentation refers to diffdir version 0.8.

=head1 SYNOPSIS

   diffdir [option] dir1 dir2 [dir3 ...]

 OPTIONS:
  -e --exclude[=]re
                Elclude any file or directory that matches this regular
                expression
  -s --script   Produce a script of actions
  -c --command[=]string
                The diff command you wish to use for viewing the
                differences in the files
  -m --cp-missing Create a copy statement for missing files rather than
                telling which directory it was missing from
  -r --remove-extra
                Remove extra files
  -S --same-files
                Show the same files instead of different files
  -j --join     Combines the file into a thrid based on the original directory names.
  -f --follow   Follow symlinks directories and diff symlink files.
     --no-follow
                Don't follow symlinked directories or diff symlinked files.
  -F --fast     Use file sizees to tell if files are different
  -b --ignore-space-change
                Ignore changes in the amount of white space.
  -w --ignore-all-space
                Ignore all white space.
  -d --missing-dirs
                Create directories that are missing (makes copying of missing files simpler)
  -E --exec     Show all diff action in one line

  -v --verbose  Show more detailed option
     --VERSION  Prints the version information
     --help     Prints this help information
     --man      Prints the full documentation for diffdir

=head1 DESCRIPTION

=head1 SUBROUTINES/METHODS

=head1 DIAGNOSTICS

=head1 CONFIGURATION AND ENVIRONMENT

=head1 DEPENDENCIES

=head1 INCOMPATIBILITIES

=head1 BUGS AND LIMITATIONS

There are no known bugs in this module.

Please report problems to Ivan Wills (ivan.wills@gmail.com).

Patches are welcome.

=head1 AUTHOR

Ivan Wills - (ivan.wills@gmail.com)

=head1 LICENSE AND COPYRIGHT

Copyright (c) 2015 Ivan Wills (14 Mullion Close, Hornsby Heights, NSW Australia 2077).
All rights reserved.

This module is free software; you can redistribute it and/or modify it under
the same terms as Perl itself. See L<perlartistic>.  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.

=cut