dotfiles/symlinks/config/nvim/lua/lsp/jdtls_setup.lua

-------------------------------------------------------------------------------
--    - JDTLS server configuration -
-------------------------------------------------------------------------------

local common_config = require("lsp.server_config")
local M = {}

function M.setup()
  require'jdtls'.setup_dap()
	require'jdtls.setup'.add_commands()
	local on_attach = function(client, bufnr)

		local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
		local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end

		buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')

		local default_opts = {noremap = true, silent = true}

		common_config.on_attach(client, bufnr)

		buf_set_keymap('n', '<A-CR>', "<cmd>lua require('jdtls').code_action()<CR>", default_opts)
		buf_set_keymap('n', '<Leader>ac', "<cmd>lua require('jdtls').code_action()<CR>", default_opts)
	end

	local root_markers = {'gradlew', 'pom.xml'}
	local root_dir = require('jdtls.setup').find_root(root_markers)
	local home = os.getenv('HOME')

	local workspace_folder = home .. "/.workspace" .. vim.fn.fnamemodify(root_dir, ":p:h:t")
	local config = {
		flags = {
			allow_incremental_sync = true,
		};
		on_attach = on_attach,
	}
	config.settings = {
		java = {
			signatureHelp = { enabled = true };
			sources = {
				organizeImports = {
					starThreshold = 9999;
					staticStarThreshold = 9999;
				};
			};
		};
	}
	config.cmd = {'jdtls-start.sh', workspace_folder}
	config.on_init = function(client, _)
		client.notify('workspace/didChangeConfiguration', { settings = config.settings })
	end

	local extendedClientCapabilities = require'jdtls'.extendedClientCapabilities
	extendedClientCapabilities.resolveAdditionalTextEditsSupport = true
	config.init_options = {
		-- bundles = bundles;
		extendedClientCapabilities = extendedClientCapabilities;
	}

	-- Server
	require('jdtls').start_or_attach(config)
end

return M