Nvim lsp settings

lsp-config.lua

--##########################################################################################################
-- LSP Keybindings and completion---------------------------------------------------------------------------
--###################################################################################################################

local nvim_lsp = require('lspconfig')
vim.lsp.set_log_level 'debug'
-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
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

  -- Enable completion triggered by <c-x><c-o>
  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')

  -- Mappings.
  local opts = { noremap=true, silent=true }

  -- See `:help vim.lsp.*` for documentation on any of the below functions
  buf_set_keymap('n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
  buf_set_keymap('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
  buf_set_keymap('n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
  buf_set_keymap('n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
  buf_set_keymap('n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
  buf_set_keymap('n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
  buf_set_keymap('n', '<space>lD', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
  buf_set_keymap('n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
  buf_set_keymap('n', '<space>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
  buf_set_keymap('n', '<space>le', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
  buf_set_keymap('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<CR>', opts)
  buf_set_keymap('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<CR>', opts)
  buf_set_keymap('n', '<space>lq', '<cmd>lua vim.diagnostic.setloclist()<CR>', opts)
  buf_set_keymap('n', '<space>lf', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)

  -- require 'illuminate'.on_attach(client)
  require'aerial'.on_attach(client, bufnr)
  if client.resolved_capabilities.document_highlight then
      vim.cmd [[
        hi LspReferenceRead cterm=bold ctermbg=red guibg=LightYellow
        hi LspReferenceText cterm=bold ctermbg=red guibg=LightYellow
        hi LspReferenceWrite cterm=bold ctermbg=red guibg=LightYellow
        augroup lsp_document_highlight
          autocmd! * <buffer>
          autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
          autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
        augroup END
      ]]
  end
end

vim.diagnostic.config({
  virtual_text = true,
  signs = true,
  underline = true,
  update_in_insert = false,
  severity_sort = false,
})

-- Change diagnostic symbols in the sign column (gutter)
local signs = { Error = " ", Warn = " ", Hint = " ", Info = " " }
for type, icon in pairs(signs) do
  local hl = "DiagnosticSign" .. type
  vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = hl })
end

vim.o.updatetime = 250
vim.cmd [[autocmd CursorHold,CursorHoldI * lua vim.diagnostic.open_float(nil, {focus=false})]]

-- Set completeopt to have a better completion experience
vim.o.completeopt = 'menu,menuone,noselect'

-- Add additional capabilities supported by nvim-cmp
local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)
-- local capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities())

--##########################################################################################################
-- General lang server setup -----------------------------------------
--###################################################################################################################

local server_config = {
  capabilities = capabilities;
  on_attach = on_attach;
  flags = {
    debounce_text_changes = 150,
  },
}

--##########################################################################################################
-- C++ config------------------------------------------
--###################################################################################################################

nvim_lsp.clangd.setup {
  capabilities = capabilities;
  on_attach = on_attach;
  flags = {
    debounce_text_changes = 150,
  },
  cmd = {
    "clangd",
    "--background-index",
  },
  filetypes = { "c", "cpp", "objc", "objcpp" },
  -- on_init = function to handle changing offsetEncoding
  -- root_dir = require('lspconfig/util').root_pattern("compile_commands.json", "compile_flags.txt", ".ccls"),
  -- root_dir = root_pattern("compile_commands.json", "compile_flags.txt", ".git") or dirname
}