There might be more elegant ways to do it (there probably is), but I have a
variable I define in my output files, is-loaded-file and then I can use #(if
(defined? 'is-loaded-file) … ) in the definition files to test. This requires a
situation where there’s a clear separation between ”definition files” and
”output files”, but works quite well for me.
> 14 sep. 2021 kl. 09:52 skrev Omid Mo'menzadeh <omid.mnza...@gmail.com>:
>
> Hello all. This might be a weird thing to seek, but here is the scenario:
> I have several files defining (but not using) different parts of the score,
> which other files use to construct several output types.
>
> But the problem is the command `lilypond -l WARNING -o /path/to/file.ly` does
> not show a warning for the following example file:
> ghigh = \relative c {
> \clef "treble_8"
> \time 4/4
> \voiceOne
> c2 |
> }
>
> It does, if I include the following part at the end of the file:
> \book {
> \ghigh
> }
>
> But the problem is that when I include it in another file, I get an extra
> output!
>
> A possible solution could look like an `if __name__ == "__main__"` clause in
> Python, but I don't know if we have a similar variable available in Lilypond.
> Thanks in advance,
> Omid
