Have you actually tried this? LilyPond appends ".pdf" to the output
filename (and ".midi"). If you try to make the fifo ending in ".pdf",
you find lilypond removes the fifo before writing a new file. For the
same reasons, the output file cannot be /dev/stdout. Maybe you could
write something exciting using FUSE or Docker.
On 1/7/2024 5:41 AM, Raphael Mankin wrote:
On 05/01/2024 03:46, David Wright wrote:
Alternatively, use a fifo, e.g.
fifo=/var/tmp/ly-pdf$$
rm -rf $fifo
mknod $fifo p
cat source.ly | lintLy | lilypond -o $fifo &
optimizePDF < $fifo > score.pdf
wait
rm -rf $fifo
A trick I learned when doing Oracle backups. It also would not write
to stdout.
