[slime-devel] Re: Redirecting output from slime-compile-and-load-file?

[Nikodemus Siivola]

Chris Dean <ctdean at sokitomi.com> writes:

> Matt Pillsbury <pillsbury at gmail.com> writes:
>> I was wondering if it is possible, using SBCL and SLIME, to have the
>> output (errors, warnings, et c.) from slime-compile-and-load-file
>> directed somewhere other than the REPL?
>
> Did you ever find a solution to this?  I'm also looking for a way to
> keep my repl clean.

Slime doesn't currently have the infrastructure for this really, not
that adding it would be too difficult.

Compiler-output controlled by *compile-print* and *compile-verbose*
should go to *standard-output*, which I believe you don't have a
problem with.

Everything else _should_ go to *error-output*, and in SBCL at least
I believe it does, so you need to bind *error-output* at the right
place to another stream. 

(defun swank-compiler (function)
  (clear-compiler-notes)
  (with-simple-restart (abort "Abort SLIME compilation.")
    (multiple-value-bind (result usecs)
        (handler-bind ((compiler-condition #'record-note-for-condition))
          (let ((*error-output* your-compiler-error-output-stream)) ; <--- HERE
            (measure-time-interval function)))
      (list (to-string result)
            (format nil "~,2F" (/ usecs 1000000.0))))))

If you just want to get rid of the "noise", bind it to the result of
(make-broadcast-stream). 

The more complete solution is to add another stream to the comm layer,
and have it write to *slime-compile-output* or something.

Cheers,

  -- Nikodemus              Schemer: "Buddha is small, clean, and serious."
                   Lispnik: "Buddha is big, has hairy armpits, and laughs."