Small asynchronous process execution library for myself.
# test.sh
#!/bin/bash
echo "to stderr" >&2
grep . -o | while read x ; do sleep 0.2 ; echo "$x" ; done(little-async-start-process '("/path/to/test.sh")
:input "Hello!"
:filter (lambda (p output)
(with-current-buffer
(get-buffer-create "*tmp*")
(insert (format "GOT %s" output))))
:stderr "*tmp-stderr*")You will see below in *tmp* buffer:
GOT H
GOT e
GOT l
GOT l
GOT o
GOT !
Each line is written every 0.2 seconds. Meanwhile, Emacs will not be blocked.
You will see belo in *tmp-stderr* buffer:
to stderr