Add option to configure compile file's extension

[MTrost]

Some JavaScript libraries and tools can't handle .mjs files (e.g. Remix, Photoshop were mentioned in Slack).

It would be great to have a way to tell squint what file extension it uses to create files with non-standard extensions possible (Photoshop uses .psjs).

Files containing #jsx should probably be constrained to .jsx (and .tsx?).

[borkdude]

Files containing #jsx are emitted as .jsx already automatically. If not, please provide a repro.
The extension can be configured using the --extension option:

$ npx squint compile --help
Usage: squint compile <files> <opts>

Options:

--elide-imports: do not include imports
--elide-exports: do not include exports
--extension: default extension for JS files

Let me me know if this isn't sufficient

[MTrost]

Hi hi 👋

It seems that I missed some iterations, and everything I wished for here is already implemented.

And regarding the #jsx I didn't make myself clear: I meant, that files with #jsx in it should be ignored when changing the file extension and still compile to .jsx files. So exactly as it is already implemented!

Closing this, thanks for your work!