diff options
Diffstat (limited to 'lib/Term/Filter.pm')
| -rw-r--r-- | lib/Term/Filter.pm | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Term/Filter.pm b/lib/Term/Filter.pm index 9969895..9172fc2 100644 --- a/lib/Term/Filter.pm +++ b/lib/Term/Filter.pm @@ -149,6 +149,9 @@ sub _setup { my $self = shift; my (@cmd) = @_; + Carp::croak("Must be run attached to a tty") + unless -t $self->input && -t $self->output; + $self->pty->spawn(@cmd) || Carp::croak("Couldn't spawn @cmd: $!"); $self->_raw_mode(1); |