On 2019-11-14 7:19 pm, Francesco Petrogalli wrote:
I would like to capture the output of a command line script into a
lilypond variable. Is there a way to do this?
I am trying to print the hash of a commit in the pdf, to version the
file.
Neither ly:spawn nor system appear to capture stdout of the child
process.
Looks like you have to jump through a few hoops:
;;;;
(use-modules (ice-9 popen) (ice-9 rdelim))
(let* ((port (open-input-pipe "date +%s"))
(str (read-line port)))
(close-pipe port) str)
;;;;
-- Aaron Hill
