add dressing for popup menus and migrate from deprecated lspinstall to lsp-installer

init.lua

@@ -1,7 +1,9 @@
 require 'plugins'
 
-vim.g.onedark_style = 'warmer'
-require('onedark').setup()
+require('onedark').setup {
+	style = 'warmer'
+}
+require('onedark').load()
 
 require 'lsp'
 require 'completion'

lua/keys.lua

@@ -2,7 +2,7 @@ local key = vim.api.nvim_set_keymap
 local u = require('utils')
 
 vim.cmd([[autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif]])
-vim.cmd([[autocmd CursorHold * lua vim.lsp.diagnostic.show_line_diagnostics({focusable = false})]])
+vim.cmd([[autocmd CursorHold * lua vim.diagnostic.open_float({focusable = false})]])
 
 key('n', ';', ':Telescope find_files<CR>', {})
 key('', '<C-n>', ':NvimTreeToggle<CR>', {})

lua/lsp.lua

@@ -1,4 +1,3 @@
-require'lspinstall'.setup()
 local u = require('utils')
 local nvim_lsp = require'lspconfig'
 
@@ -54,24 +53,24 @@ local capabilities = vim.lsp.protocol.make_client_capabilities()
 capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)
 
 
-local servers = require'lspinstall'.installed_servers()
-for _, lsp in ipairs(servers) do
+local servers = require'nvim-lsp-installer'
+servers.on_server_ready(function(server) 
   local config = {
     on_attach = on_attach,
     capabilities = capabilities,
     flags = {debounce_text_changes = 150}
   }
-  if lsp == "lua" then
+  if server.name == "sumneko_lua" then
     config.settings = require'lsp.lua'
   end
-  if lsp == "rust" then
+  if server.name == "rust_analyzer" then
     config.settings = require'lsp.rust'
   end
-  nvim_lsp[lsp].setup(config)
-end
-
+  server:setup(config)
+end)
 
 -- Set completeopt to have a better completion experience
 vim.o.completeopt = 'menuone,noselect'
 
 
+

lua/plugins.lua

@@ -48,7 +48,8 @@ return require('packer').startup({function()
   use 'akinsho/toggleterm.nvim'
   -- LSP Setup
   use 'neovim/nvim-lspconfig'
-  use 'kabouzeid/nvim-lspinstall'
+  -- use 'kabouzeid/nvim-lspinstall'
+  use 'williamboman/nvim-lsp-installer'
   use 'nvim-lua/lsp_extensions.nvim'
   use 'nvim-lua/completion-nvim'
   use 'nvim-lua/popup.nvim'
@@ -69,6 +70,8 @@ return require('packer').startup({function()
 
   use 'kyazdani42/nvim-web-devicons'
 
+  use 'stevearc/dressing.nvim'
+
   use {
     'kyazdani42/nvim-tree.lua',
     cmd = {