Alex Kost <alez...@gmail.com> skribis: > Ludovic Courtès (2016-07-23 14:07 +0300) wrote: > >> Alex Kost <alez...@gmail.com> skribis: >> >>> * gnu/packages/guile.scm (guile-daemon): New variable. >> >> OK! >> >>> + (home-page "https://github.com/alezost/guile-daemon";) >>> + (synopsis "Evaluate code in a running Guile process") >>> + (description >>> + "Guile-Daemon is a small Guile program that loads your initial >>> +configuration file, and then reads and evaluates Guile expressions that >>> +you send to a FIFO file.") >> >> This looks a lot like ‘guile --listen’, except without the REPL prompt >> and stuff, right? > > Sorry, I don't understand what «without the REPL prompt and stuff» means :-)
‘guile --listen’ gives you a REPL prompt, which is nice for interactive stuff, but less nice for scripting. > I wrote Guile-Daemon because I needed a general-purpose guile process > running all the time to which I can send expressions for evaluating. > > So I run 'guile-daemon', and then I can do something like this: > > echo '(something #:useful? #t)' > /path/to/daemon-fifo-file > > Actually there is 'gdpipe' shell script that does this redirection: > > gdpipe '(something #:useful? #t)' > > As for 'guile --listen', yes, Guile-Daemon also starts a socket to which > you can connect with "M-x geiser-connect-local" or alike. Understood, it does sound useful. > If anyone is interested, I use it as an OSD daemon, particularly to set > sound volume/muteness and to display it using Guile-XOSD. Here is a > small demo: > > https://raw.github.com/alezost/guile-daemon-config/master/sound-volume-demo.gif Pretty neat! Thanks, Ludo’.
