File Coverage

blib/lib/Alien/Plotly/Kaleido.pm

Criterion	Covered	Total	%
statement	50	64	78.1
branch	6	16	37.5
condition	3	6	50.0
subroutine	11	12	91.6
pod	2	3	66.6
total	72	101	71.2

package Alien::Plotly::Kaleido;

# ABSTRACT: Finds or installs plotly kaleido

use 5.010;
use strict;
use warnings;

our $VERSION = '0.003'; # VERSION

use parent 'Alien::Base';

use File::Which qw(which);
use IPC::Run ();
use JSON ();
use Path::Tiny ();

sub bin_dir {
    my ($class) = @_;
    if ( $class->install_type eq 'system' ) {
        return Alien::Base::bin_dir($class);
    }
    else {
        return Path::Tiny->new( $class->dist_dir );
    }
}

sub version {
    my ($self) = @_;
    if ( $self->install_type eq 'system' ) {
        state $version;
        unless ($version) {
            $version = $self->detect_kaleido_version;
        }
        return $version;
    }
    else {
        return $self->SUPER::version;
    }
}

sub detect_kaleido_version {
    my ($class) = @_;

    my $kaleido = which('kaleido');
    if ($kaleido) {
        my $decode_json_safe = sub {
            my ($out) = @_;
            my $data;
            eval { $data = JSON::decode_json($out); };
            $@ = '' if ($@);
            return $data;
        };

        my @cmd = ( $kaleido, 'plotly', '--disable-gpu', '--no-sandbox' );
        eval {
            require Chart::Plotly;
            my $plotlyjs =
              File::ShareDir::dist_file( 'Chart-Plotly',
                'plotly.js/plotly.min.js' );
              if ( -r $plotlyjs ) {
                push @cmd, "--plotlyjs=$plotlyjs";
            }
        };
        my $h;
        my $data;
        eval {
            my ( $in, $out, $err );
            $h = IPC::Run::start( \@cmd, \$in, \$out, \$err,
                my $t = IPC::Run::timer(30) );
            while ( not $data and not $t->is_expired ) {
                $h->pump;
                $data = $decode_json_safe->($out);
            }
            $h->finish;
        };
        if ($@) {
            warn $@;
            $h->kill_kill;
        }
        if ( $data and exists $data->{version} ) {
            return $data->{version};
        }
    }

    die "Failed to detect kaleido version";
}

1;

__END__