bug#71562: treesit-install-language-grammar fails to install typescript

[Dmitry Gutov <dmitry@gutov.dev>]

On 14/06/2024 21:18, Steinar Bang wrote:
> Platform: emacs 29.3 from backports debian package (1:29.3+1-3~bpo12+1)
>            debian 12.5 "bookworm" (current stable) on amd64
> 
> The 'M-x treesit-install-language-grammar RET typescript RET' fails
> with:
> 
>   ⛔ Warning (treesit): Error encountered when installing language
> grammar: (file-missing Setting current directory No such file or
> directory /tmp/treesit-workdirN2u4XF/repo/src)
> 
> I used defaults on all questions because I had no idea what else to put
> there.
> 
> I think the reason the command fails is that the repository
>   https://github.com/tree-sitter/tree-sitter-typescript
> actually contains two tree-sitter parsers for typescript and tsx:
>   https://github.com/tree-sitter/tree-sitter-typescript/tree/master/typescript
>   https://github.com/tree-sitter/tree-sitter-typescript/tree/master/tsx

FWIW, this is more or less intended, since we don't store the exact urls 
for the grammars (in the default settings), and just infer them 
according to the common scheme.

But we could change that in some cases, and perhaps typescript is 
popular enough for us to do that.