From 1757cb319e9a20d0c338134bdc74473c4746b4f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ensar=20Saraj=C4=8Di=C4=87?= <es.ensar@gmail.com>
Date: Mon, 6 Jun 2022 19:35:17 +0200
Subject: [PATCH] Add neovim-java-plugin-host

---
 .../config/nvim/lua/esensar/init/plugins.lua  |  1 +
 .../nvim/lua/esensar/lsp/jdtls_setup.lua      | 29 ++++++++++++++++---
 symlinks/config/nvim/plugin/java_host.lua     | 13 +++++++++
 3 files changed, 39 insertions(+), 4 deletions(-)
 create mode 100644 symlinks/config/nvim/plugin/java_host.lua

diff --git a/symlinks/config/nvim/lua/esensar/init/plugins.lua b/symlinks/config/nvim/lua/esensar/init/plugins.lua
index 3006767..089bd2c 100644
--- a/symlinks/config/nvim/lua/esensar/init/plugins.lua
+++ b/symlinks/config/nvim/lua/esensar/init/plugins.lua
@@ -48,6 +48,7 @@ return require("packer").startup({
 		use("diepm/vim-rest-console") -- REST console for vim
 		use("esensar/nvim-dev-container") -- devcontainer.json support
 		use("jbyuki/one-small-step-for-vimkind") -- Debugger for Nvim-Lua
+		use("esensar/neovim-java-plugin-host") -- Host for Java plugins
 
 		-- Snippets
 		use("L3MON4D3/LuaSnip") -- snippets support
diff --git a/symlinks/config/nvim/lua/esensar/lsp/jdtls_setup.lua b/symlinks/config/nvim/lua/esensar/lsp/jdtls_setup.lua
index f05c260..5dacb5b 100644
--- a/symlinks/config/nvim/lua/esensar/lsp/jdtls_setup.lua
+++ b/symlinks/config/nvim/lua/esensar/lsp/jdtls_setup.lua
@@ -5,15 +5,29 @@
 local common_config = require("esensar.lsp.server_config")
 local M = {}
 
+local function is_in_config_home(bufname)
+	bufname = bufname or vim.api.nvim_buf_get_name(vim.api.nvim_get_current_buf())
+	local dirname = vim.fn.fnamemodify(bufname, ":p:h")
+	local getparent = function(p)
+		return vim.fn.fnamemodify(p, ":h")
+	end
+	local config_path = vim.fn.resolve(vim.fn.expand(vim.fn.stdpath("config")))
+	while getparent(dirname) ~= dirname do
+		if dirname == config_path then
+			return true
+		else
+			dirname = getparent(dirname)
+		end
+	end
+	return false
+end
+
 function M.setup()
 	local _, installed_jdtls = require("nvim-lsp-installer.servers").get_server("jdtls")
 
 	require("jdtls").setup_dap({ hotcoredeplace = "auto" })
 	require("jdtls.setup").add_commands()
 
-	local root_markers = { "gradlew", "pom.xml" }
-	local root_dir = require("jdtls.setup").find_root(root_markers)
-
 	local config = vim.tbl_extend("force", installed_jdtls["_default_options"], {
 		flags = {
 			allow_incremental_sync = true,
@@ -31,7 +45,14 @@ function M.setup()
 			},
 		},
 	}
-	config.root_dir = root_dir
+
+	if is_in_config_home() then
+		config.settings.java.project = {
+			referencedLibraries = require("java_plugin_host").classpath,
+		}
+	end
+	config.root_dir = require("jdtls.setup").find_root({ "gradlew", "pom.xml" })
+
 	config.on_init = function(client, _)
 		client.notify("workspace/didChangeConfiguration", { settings = config.settings })
 	end
diff --git a/symlinks/config/nvim/plugin/java_host.lua b/symlinks/config/nvim/plugin/java_host.lua
new file mode 100644
index 0000000..b230250
--- /dev/null
+++ b/symlinks/config/nvim/plugin/java_host.lua
@@ -0,0 +1,13 @@
+-- Configuration for Java remote plugin host
+require("java_plugin_host").setup({
+	autostart = false,
+	rplugins = {
+		load_class = true,
+		compile_java = true,
+	},
+	common_host = {
+		custom_repositories = {
+			"https://maven.pkg.github.com/OWNER/REPOSITORY",
+		},
+	},
+})