File Coverage

blib/lib/Module/Install/ReadmeFromPod.pm

Criterion	Covered	Total	%
statement	14	103	13.5
branch	0	32	0.0
condition	0	19	0.0
subroutine	5	15	33.3
pod	1	1	100.0
total	20	170	11.7

package Module::Install::ReadmeFromPod;

use 5.006;
use strict;
use warnings;
use base qw(Module::Install::Base);
use vars qw($VERSION);

$VERSION = '0.30';

{

    # these aren't defined until after _require_admin is run, so
    # define them so prototypes are available during compilation.
    sub io;
    sub capture(&;@);

=pod

=begin quiet_pod_coverage

=head2 io

=head2 capture

=end quiet_pod_coverage

=cut

    my $done = 0;

    sub _require_admin {

	# do this once to avoid redefinition warnings from IO::All
	return if $done;

	require IO::All;
	IO::All->import( '-binary' );

	require Capture::Tiny;
	Capture::Tiny->import ( 'capture' );

	return;
    }

}

sub readme_from {
  my $self = shift;
  return unless $self->is_admin;

  _require_admin;

  # Input file
  my $in_file  = shift || $self->_all_from
    or die "Can't determine file to make readme_from";

  # Get optional arguments
  my ($clean, $format, $out_file, $options);
  my $args = shift;
  if ( ref $args ) {
    # Arguments are in a hashref
    if ( ref($args) ne 'HASH' ) {
      die "Expected a hashref but got a ".ref($args)."\n";
    } else {
      $clean    = $args->{'clean'};
      $format   = $args->{'format'};
      $out_file = $args->{'output_file'};
      $options  = $args->{'options'};
    }
  } else {
    # Arguments are in a list
    $clean    = $args;
    $format   = shift;
    $out_file = shift;
    $options  = \@_;
  }

  # Default values;
  $clean  ||= 0;
  $format ||= 'txt';

  # Generate README
  print "readme_from $in_file to $format\n";
  if ($format =~ m/te?xt/) {
    $out_file = $self->_readme_txt($in_file, $out_file, $options);
  } elsif ($format =~ m/html?/) {
    $out_file = $self->_readme_htm($in_file, $out_file, $options);
  } elsif ($format eq 'man') {
    $out_file = $self->_readme_man($in_file, $out_file, $options);
  } elsif ($format eq 'md') {
    $out_file = $self->_readme_md($in_file, $out_file, $options);
  } elsif ($format eq 'pdf') {
    $out_file = $self->_readme_pdf($in_file, $out_file, $options);
  }

  if ($clean) {
    $self->clean_files($out_file);
  }

  return 1;
}


sub _readme_txt {
  my ($self, $in_file, $out_file, $options) = @_;
  $out_file ||= 'README';
  require Pod::Text;
  my $parser = Pod::Text->new( @$options );
  my $io = io->file($out_file)->open(">");
  my $out_fh = $io->io_handle;
  $parser->output_fh( *$out_fh );
  $parser->parse_file( $in_file );
  return $out_file;
}


sub _readme_htm {
  my ($self, $in_file, $out_file, $options) = @_;
  $out_file ||= 'README.htm';
  require Pod::Html;
  my ($o) = capture {
    Pod::Html::pod2html(
      "--infile=$in_file",
      "--outfile=-",
      @$options,
    );
  };
  io->file($out_file)->print($o);
  # Remove temporary files if needed
  for my $file ('pod2htmd.tmp', 'pod2htmi.tmp') {
    if (-e $file) {
      unlink $file or warn "Warning: Could not remove file '$file'.\n$!\n";
    }
  }
  return $out_file;
}


sub _readme_man {
  my ($self, $in_file, $out_file, $options) = @_;
  $out_file ||= 'README.1';
  require Pod::Man;
  my $parser = Pod::Man->new( @$options );
  my $io = io->file($out_file)->open(">");
  my $out_fh = $io->io_handle;
  $parser->output_fh( *$out_fh );
  $parser->parse_file( $in_file );
  return $out_file;
}


sub _readme_pdf {
  my ($self, $in_file, $out_file, $options) = @_;
  $out_file ||= 'README.pdf';
  eval { require App::pod2pdf; }
    or die "Could not generate $out_file because pod2pdf could not be found\n";
  my $parser = App::pod2pdf->new( @$options );
  $parser->parse_from_file($in_file);
  my ($o) = capture { $parser->output };
  io->file($out_file)->print($o);
  return $out_file;
}

sub _readme_md {
  my ($self, $in_file, $out_file, $options) = @_;
  $out_file ||= 'README.md';
  require Pod::Markdown;
  my $parser = Pod::Markdown->new( @$options );
  my $io = io->file($out_file)->open(">");
  my $out_fh = $io->io_handle;
  $parser->output_fh( *$out_fh );
  $parser->parse_file( $in_file );
  return $out_file;
}


sub _all_from {
  my $self = shift;
  return unless $self->admin->{extensions};
  my ($metadata) = grep {
    ref($_) eq 'Module::Install::Metadata';
  } @{$self->admin->{extensions}};
  return unless $metadata;
  return $metadata->{values}{all_from} || '';
}

'Readme!';

__END__