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package Reply::Plugin::CollapseStack;
use strict;
use warnings;
# ABSTRACT: display error stack traces only on demand
use base 'Reply::Plugin';
{
local @SIG{qw(__DIE__ __WARN__)};
require Carp::Always;
}
=head1 SYNOPSIS
; .replyrc
[CollapseStack]
num_lines = 1
=head1 DESCRIPTION
This plugin hides stack traces until you specifically request them
with the C<#stack> command.
The number of lines of stack to always show is configurable; specify
the C<num_lines> option.
=cut
sub new {
my $class = shift;
my %opts = @_;
my $self = $class->SUPER::new(@_);
$self->{num_lines} = $opts{num_lines} || 1;
return $self;
}
sub compile {
my $self = shift;
my ($next, @args) = @_;
local $SIG{__DIE__} = \&Carp::Always::_die;
$next->(@args);
}
sub execute {
my $self = shift;
my ($next, @args) = @_;
local $SIG{__DIE__} = \&Carp::Always::_die;
$next->(@args);
}
sub mangle_error {
my $self = shift;
my $error = shift;
$self->{full_error} = $error;
my @lines = split /\n/, $error;
if (@lines > $self->{num_lines}) {
splice @lines, $self->{num_lines};
$error = join "\n", @lines, " (Run #stack to see the full trace)\n";
}
return $error;
}
sub command_stack {
my $self = shift;
# XXX should use print_error here
print($self->{full_error} || "No stack to display.\n");
return '';
}
=for Pod::Coverage
command_stack
=cut
1;
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