Re: Issue with remote async processes.

[Michael Albinus]

Ergus <spacibba@aol.com> writes:

Hi,

> Sorry to bother... I have another question. When we use process-file and
> start-file-process with tramp, how can we get the error output in a
> buffer?

The argument BUFFER can be a list. The car is the output (string or
buffer), the cdr is the stderr (just a string, a filename).

--8<---------------cut here---------------start------------->8---
(let ((default-directory "/ssh::")
      (output (generate-new-buffer "*Output*"))
      (stderr "/ssh::/tmp/xxx"))
  (process-file "echo" nil (list output stderr) nil "Hallo")
  (process-file "echa" nil (list output stderr) nil "Holla")
  (find-file stderr))
--8<---------------cut here---------------end--------------->8---

In start-file-process, it is similar. The difference is, that stderr can
be either a string (filename) or a buffer.

--8<---------------cut here---------------start------------->8---
(let ((default-directory "/ssh::")
      (output (generate-new-buffer "*Output*"))
      (stderr (generate-new-buffer "*Stderr*")))
  (start-file-process "test1" (list output stderr) "echo" "Hallo")
  (start-file-process "test2" (list output stderr) "echa" "Holla"))
--8<---------------cut here---------------end--------------->8---

Best regards, Michael.