Re: tree-sitter and language support

[Roman Rudakov]

Yuan Fu <casouri@gmail.com> writes:

> > On Nov 24, 2022, at 9:20 PM, T.V Raman <raman@google.com> wrote:
> >
> > I installed from elpa/melpa:
> >
> > ls -1 -d tree-sitter-*
> > tree-sitter-20220212.1632/
> > tree-sitter-langs-20221122.645/
> > 21:18:06 elpa $
> >
> > but emacs compiled from latest Git Head still produces the 
> > completely
> > unhelpful message
> > tree-support for language <x> is unavailable if I invoke c-ts-mode 
> > or
> > c++-ts-mode
> >
> > A note in the News file detailing what bits one needs to install 
> > might
> > be the shoes we need to help us walk the final mile on this long 
> > road
> > to tree-sitter integration.
>
> We are just starting to work on tree-sitter’s user-facing
> documentation, including the (emacs) manual and NEWS file. I’ll
> definitely improve the error message. In the meantime, find files 
> that
> looks like libtree-sitter-xxx.so and put them under
> ~/.emacs.d/tree-sitter (or a standard library location like
> /usr/local/lib), and Emacs should be able to find them.
>
> Yuan

Hi Yuan!

I have a question. Are these paths hardcoded? I use MacOS, I've built 
a grammar for java using custom homebrew formula, it produces the file 
/opt/homebrew/lib/libtree-sitter-java.dylib, but when I open any java 
source file and try to activate java-ts-mode, I'm getting the error:

Warning (treesit): Cannot activate tree-sitter, because language 
definition for java is unavailable (not-found): 
(libtree-sitter-java.so libtree-sitter-java.dylib) No such file or 
directory

I can fix it by adding /opt/homebrew/lib to treesit-extra-load-path, 
but I'm wondering how to install grammar properly to avoid setting 
this variable.
--
Best regards, Roman

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