A small proxy for kotlin-lsp to Helix, because Helix doesn't support JAR paths.

The proxy spawns an instance of kotlin-lsp and forwards messages to Helix after rewriting the JAR:// path to a file:// path, unzipping the file to the default caching destination of the OS.

Tested on MacOS, although I haven't done a lot of it, go to definition and references seems to be working well for me.

How to.

Clone the project, build it with cargo and configure language.toml to point to the created executable. Such as

[[language]]
name = "kotlin"
scope = "source.kotlin"
injection-regex = "kotlin"
file-types = ["kt", "kts"]
shebangs = ["kotlin"]
roots = [
  "settings.gradle",
  "settings.gradle.kts",
  "build.gradle",
  "build.gradle.kts"
]
comment-token = "//"
language-servers = ["kotlin-lsp"]
indent = {tab-width = 2, unit = "  "}


[language-server.kotlin-lsp]
command = "/PATH/TO/EXECUTABLE/kotlin-lsp-wrapper"