Vintellij

Make IntelliJ as a server language protocol.

Installation

Vim

{
  "dinhhuy258/vintellij",
  branch = "lsp",
  config = function()
    require("vintellij").setup({
      debug = false,
      common_capabilities = vim.lsp.protocol.make_client_capabilities(),
      common_on_attach = function() 
        print("your on_attach function here")
      end,
      common_on_init = function()
        print("Vintellij started ...")
      end,
      filetypes = {
        "kotlin"
      },
      lib_dirs = {
        "~/.gradle",
        "/Library/Java/JavaVirtualMachines",
      },
    })
  end,
}

lib_dirs is the list of external library sources that uses by Intellij.

Intellij plugin

Modify intellij plugin version and intellij kotlin version in build.gradle file based on your Intellij version (default is 2020.2) (optional)
Run ./gradlew buildPlugin
Install the vintellij plugin into Intellij. (Preferences -> Plugins -> Install Plugin from Disk...)

Vintellij commands

VintellijOptimizeImport: Optimze import for the current file
VintellijGenDoc: Generate kotlin doc at the current cursor. (Currently, only support Class and Function docs)

Note: Please move the cursor to the line of a class/function that you want to generate doc before running a command. If your class/method contains annotations then move the cursor to the top annotation.

Eg:

class TestKotlin { <------------ Cursor must be in this line
}

@Controler   <------------ Cursor must be in this line
@TestAnnotation
class TestKotlin {
}

Start Vintellij LSP Client

Vintellij LSP Client does not start automatically, please open the project in IntelliJ same as the project in Neovim then open any Kolin or Java file in project and run command :LspStart

Note: If you disable zip and zipPlugin then the go to implementation feature will not work properly.

Features

Go to definition
Go to type definition
Go to implementation
Go to reference
Document symbol
Import code action
Document formatting
Autocompletion
Generate doc (Kotlin only)
Optimize import

Issue

The buffer sync between NeoVim and Intellij still have a problem
To make it work, the Intellij must open the same project as Vim.
Always open Intellij otherwise everything will be slow - the workarround maybe:
- Get IntelliJ focused by having it in your secondary screen
- Get vim transparent and putting IntelliJ behind

Development

Disable Vintellij plugin from your Intellij
From Intellij (on Vintellij project), select Gradle panel => run runIde task as debug.
An Intellij with Vintellij plugin installed will be spawned. Open a java/kotlin project from that Intellij
Open the same project by vim -> open a java/kotlin file -> LspStart
Set any debugger from Vintelli project