Add suppport for customize dune path

[bn-d]

We have support for ocaml.repl.path. Can we add similar support for the dune binary? Thanks

{
  "ocaml.dune.path": "/my/path/my_dune_exe"
}

[ulugbekna]

Hi,

1. Why would you like that? Specifying the use case will present a more convincing argument in favor of the feature.
2. Isn't this possible either using global or custom sandbox? You can read more about those from the README page of this repo.

[bn-d]

I have multiple versions of dune co-exist (some with some env specific setups), and I need to select the correct version to build. The customized binary could have a name other than dune, i.e. mydune.

So I am not sure how global/custom sandbox would help. Even with the correct path setup, the extension will still run dune build instead of mydune build.

If having the path in top-level might conflict with other sandboxes, I am also ok with

{
  "ocaml.sandbox": {
    "kind": "global",
    "dunePath": "/my/path/my_dune_exe"
  }
}

[code-ghalib]

This is not exactly the same request, but it would be nice if it were possible to point the extension to a /non/opam/path/bin to look for all the binaries it needs (ocaml-lsp-server, dune, ocamlformat, etc.).

I think you could do some pointing to individual executables with this extension.

My use-case is that on some environments I don't use opam and have pre-built binaries installed at some path using the system's package manager.

[bn-d]

Was able to find a workaround using custom kind. Just need to provide a custom switch as template, ie if [ $prog = dune ]; then /my/path/my_dune_exe $args; else $prog $args; fi