Actually the second solution (passing a variable via Scheme) works great! Basically I have multiple template files to render a score in different ways (paper sizes, etc) and this way I can use the same base file to generate PDFs using the different templates without editing the base file every time.
And you're right--I did go over that page in the manual, but that part must have escaped me. Thanks for your help. Benjamin ๐ช๐ฏ 2024-01-16 ๐จ๐ 12:39, Aaron Hill <lilyp...@hillvisions.com> ๐ฎ๐ด๐: > On 2024-01-16 10:12 am, Benjamin Bruce wrote: >> Is there a way to compile multiple input files into one output file via >> the command line? Currently I am using \include, but I would like to be >> able to choose the included file on the fly without editing the main >> file. > > If I recall correctly, LilyPond will process each source file included > on the command-line individually. You could use the shell to > concatenate all your sources together and pass them via standard input. > (Pass the filename "-" to LilyPond to instruct it to read from STDIN.) > > >> Another thought I had was maybe there is a way to pass a value to the >> .ly file via the command line and use Scheme to choose the appropriate >> file to import based on that value. But that may be even more >> far-fetched. > > You could do this, but my Spidey-Senseโข tingles and suggests this may be > an XY problem. But I simply do not have enough information about what > you are needing to accomplish. > > But for reference: > > lilypond -e '(define-public a 42)' > > Then within your .ly source, you'll need to bring in the guile-user > module: > > %%%% > #(use-modules (guile-user)) > > %% The variable `a` should now be in scope. > %%%% > > ---- > > NOTE: All of the above is documented in the first sections of the Usage > manual. > https://lilypond.org/doc/v2.24/Documentation/usage/command_002dline-usage > > > -- Aaron Hill
