# First cut at using the readline history directly rather than reimplementing
# it. It does save history but it's a little crappy; still playing with it ;)
# 
# epitaph, 22nd April 2007

package Devel::REPL::Plugin::ReadLineHistory;

use Moose::Role;

my $hist_file=$ENV{PERLREPL_HISTFILE} ||
             (($ENV{HOME} || (getpwuid($<))[7]) . "/.perlreplhist");
# HISTLEN should probably be in a config file to stop people accidentally
# truncating their history if they start the program and forget to set
# PERLREPL_HISTLEN
my $hist_len=$ENV{PERLREPL_HISTLEN} || 100;

around 'run' => sub {
  my $orig=shift;
  my ($self, @args)=@_;
  $self->term->stifle_history($hist_len);
  -f($hist_file) && $self->term->ReadHistory($hist_file);
  $self->term->Attribs->{do_expand}=1;
  $self->$orig(@args);
  $self->term->WriteHistory($hist_file) ||
    $self->print("warning: failed to write history file $hist_file");
};

1;