File Coverage

blib/lib/App/CopyrightImage.pm

Criterion	Covered	Total	%
statement	84	85	98.8
branch	30	38	78.9
condition	10	15	66.6
subroutine	11	11	100.0
pod	1	1	100.0
total	136	150	90.6

package App::CopyrightImage;

use 5.006;
use warnings;
use strict;

use Exporter qw(import);
use File::Basename;
use File::Copy;
use File::Find::Rule;
use Image::ExifTool qw(:Public);

our @EXPORT = qw(imgcopyright);

our $VERSION = '0.04';

sub imgcopyright {
    my (%data) = @_;

    die "need to supply the 'image' argument!\n" if ! $data{src};
    if (! $data{name} && (! $data{check} && ! $data{remove})){
        die "need to supply the 'name' argument\n";
    }
    $data{year} = (localtime(time))[5] + 1900;

    if ($data{dst} && -d $data{dst}){
        $data{basename} = $data{dst};
    }
    elsif (-d $data{src})
    {
        $data{basename} = $data{src};
    }
    else {
        $data{basename} = dirname $data{src};
    }

    if (-d $data{src}){
        @{ $data{images} } = File::Find::Rule->file()
                                     ->name('*.jpg', '*.jpeg')
                                     ->maxdepth(1)
                                     ->in($data{src});
    }
    else {
        push @{ $data{images} }, $data{src};
    }

    if ($data{check}){
        return _check(\%data);
    }
    else {
        _exif(\%data);
    }
}
sub _exif {
    my $data = shift;

    my $dst = $data->{dst}
        ? $data->{dst}
        : "$data->{basename}/ci";

    if (! -d $dst){
        mkdir $dst
          or die "can't create the destination image directory $dst!: $!";
    }

    my $et = Image::ExifTool->new;
    my %errors;

    for my $img (@{ $data->{images} }){

        # original

        $et->ExtractInfo($img);

        if ($data->{remove}){
            $et->SetNewValue('Copyright', '');
            $et->SetNewValue('Creator', '');
            $et->WriteInfo($img, "$img.tmp");
            move "$img.tmp", $img;
            next;
        }

        my $cp = $et->GetValue('Copyright');
        my $cr = $et->GetValue('Creator');

        if (! $data->{force} && ($cp || $cr)){
            my $set = "Copyright is already set;" if $cp;
            $set .= " Creator is already set;" if $cr;
            $errors{$img} = $set;
            next;
        }

        $et->SetNewValue('Copyright', "Copyright (C) $data->{year} by $data->{name}");
        my $creator_string = $data->{name};
        $creator_string .= " ($data->{email})" if $data->{email};

        $et->SetNewValue('Creator', $creator_string);

        my $ci_img = (fileparse($img))[0];
        $ci_img = "$dst/ci_$ci_img";

        # write out the new image

        $et->WriteInfo($img, $ci_img);

        # updated

        $et->ExtractInfo($ci_img);

        $errors{$img} = "failed to add Copyright; "
          if ! $et->GetValue('Copyright');

        $errors{$img} .= "failed to add Creator"
          if ! $et->GetValue('Creator');
    }
    return %errors;
}
sub _check {
    my $data = shift;

    my $et = Image::ExifTool->new;

    for (@{ $data->{images} }){
        $et->ExtractInfo($_);
        my $cp = $et->GetValue('Copyright');
        my $cr = $et->GetValue('Creator');

        my $err_str;
        $err_str .= " missing Copyright; " if ! $cp;
        $err_str .= " missing Creator; " if ! $cr;

        print "$_: $err_str\n" if $err_str;
    }
    return ();
}

1;
__END__