How to get JSON output with "rescript build"

[dannyfritz]

Curious how to get the JSON output for rescript build on version 12. I want it for more easily parsing the output in a build system.

[nojaf]

Can you elaborate a bit? What exactly were you doing in earlier versions?

[dannyfritz]

I'm new to rescript so i wasn't doing it before.

To avoid an x/y problem: I'm trying to run rescript build and parse the output into my neovim quickfix panel. Parsing this cli output is proving tricky for me; hence the request for a more structured output.

[nojaf]

Well, getting JSON output in rescipt build is just wish fulfillment.
If there is nothing indicating in rescript build --help it probably doesn't exists.

The best next thing would be to parse the lib/bs/.compiler.log file.
This is what the LSP server does to construct diagnostics.

Of course, your question also makes me wonder why the LSP is not providing you the same information?

[dannyfritz]

Alright. I should be able to get something working with the build artifacts or with the Language Server. Might be the right time for me to learn LSP.

[dannyfritz]

The LSP is leaving a lot to be desired, at least in Neovim. I'm finding it will only show diagnostics for open buffers and not for the whole project. So if a buffer is closed, it has no errors according to LSP until I try and build it with rescript build.

• https://artem.rocks/posts/workspace_diagnostics_nvim