File Coverage

blib/lib/TAP/Parser/SourceHandler/File.pm

Criterion	Covered	Total	%
statement	36	36	100.0
branch	10	14	71.4
condition			n/a
subroutine	8	8	100.0
pod	2	2	100.0
total	56	60	93.3

package TAP::Parser::SourceHandler::File;

use strict;
use warnings;

use TAP::Parser::IteratorFactory  ();
use TAP::Parser::Iterator::Stream ();

use base 'TAP::Parser::SourceHandler';

TAP::Parser::IteratorFactory->register_handler(__PACKAGE__);

=head1 NAME

TAP::Parser::SourceHandler::File - Stream TAP from a text file.

=head1 VERSION

Version 3.40_01

=cut

our $VERSION = '3.40_01';

=head1 SYNOPSIS

  use TAP::Parser::Source;
  use TAP::Parser::SourceHandler::File;

  my $source = TAP::Parser::Source->new->raw( \'file.tap' );
  $source->assemble_meta;

  my $class = 'TAP::Parser::SourceHandler::File';
  my $vote  = $class->can_handle( $source );
  my $iter  = $class->make_iterator( $source );

=head1 DESCRIPTION

This is a I L - it has 2 jobs:

1. Figure out if the I source it's given is a file containing raw TAP
output.  See L for more details.

2. Takes raw TAP from the text file given, and converts into an iterator.

Unless you're writing a plugin or subclassing L, you probably
won't need to use this module directly.

=head1 METHODS

=head2 Class Methods

=head3 C

  my $vote = $class->can_handle( $source );

Only votes if $source looks like a regular file.  Casts the following votes:

  0.9 if it's a .tap file
  0.9 if it has an extension matching any given in user config.

=cut

sub can_handle {
    my ( $class, $src ) = @_;
    my $meta   = $src->meta;
    my $config = $src->config_for($class);

    return 0 unless $meta->{is_file};
    my $file = $meta->{file};
    return 0.9 if $file->{lc_ext} eq '.tap';

    if ( my $exts = $config->{extensions} ) {
        my @exts = ref $exts eq 'ARRAY' ? @$exts : $exts;
        return 0.9 if grep { lc($_) eq $file->{lc_ext} } @exts;
    }

    return 0;
}

=head3 C

  my $iterator = $class->make_iterator( $source );

Returns a new L for the source.  Cs
on error.

=cut

sub make_iterator {
    my ( $class, $source ) = @_;

    $class->_croak('$source->raw must be a scalar ref')
      unless $source->meta->{is_scalar};

    my $file = ${ $source->raw };
    my $fh;
    open( $fh, '<', $file )
      or $class->_croak("error opening TAP source file '$file': $!");
    return $class->iterator_class->new($fh);
}

=head3 C

The class of iterator to use, override if you're sub-classing.  Defaults
to L.

=cut

use constant iterator_class => 'TAP::Parser::Iterator::Stream';

1;

__END__