my-nvim-setup/lua/nvim-lspconfig/lua.lua

vim.cmd [[packadd nvim-lspconfig]]
vim.cmd [[packadd nvim-compe]]

local function map(mode, lhs, rhs, opts)
    local options = {noremap = true}
    if opts then
        options = vim.tbl_extend("force", options, opts)
    end
    vim.api.nvim_set_keymap(mode, lhs, rhs, options)
end

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

-- Mappings.
map("n", "gd", "<Cmd>lua vim.lsp.buf.definition()<CR>", opts)
map("n", "gD", "<Cmd>lua vim.lsp.buf.declaration()<CR>", opts)
map("n", "gr", "<cmd>lua vim.lsp.buf.references()<CR>", opts)

map("n", "K", "<Cmd>lua vim.lsp.buf.hover()<CR>", opts)
map("n", "gi", "<cmd>lua vim.lsp.buf.implementation()<CR>", opts)
map("n", "<C-k>", "<cmd>lua vim.lsp.buf.signature_help()<CR>", opts)
map("n", "<space>wa", "<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>", opts)
map("n", "<space>wr", "<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>", opts)
map("n", "<space>wl", "<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>", opts)
map("n", "<space>D", "<cmd>lua vim.lsp.buf.type_definition()<CR>", opts)
map("n", "<space>rn", "<cmd>lua vim.lsp.buf.rename()<CR>", opts)
map("n", "<space>e", "<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>", opts)
map("n", "[d", "<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>", opts)
map("n", "]d", "<cmd>lua vim.lsp.diagnostic.goto_next()<CR>", opts)
map("n", "<space>q", "<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>", opts)

require "lspconfig".tsserver.setup {}
require "lspconfig".cssls.setup {}
require "lspconfig".html.setup {}