maybe-via-carton

#!/bin/bash
#
# Potentially re-exec commands inside the current directory's carton
# environment.
#
# Usage: alias perldoc='maybe-via-carton perldoc'
#
cmd=$1
shift
if [[ -f cpanfile.snapshot && -d local ]] && which carton >/dev/null 2>/dev/null; then
    echo running inside carton >&2
    exec carton exec -- $cmd "$@"
else
    exec $cmd "$@"
fi