Add basic lsp support

neovim/init.lua

@@ -41,6 +41,8 @@ vim.cmd('syntax on')
 
 require('packer').startup(function(use)
 
+    use('tpope/vim-surround')
+    use('neovim/nvim-lspconfig')
     use('folke/tokyonight.nvim')
     use('euclidianAce/BetterLua.vim')
     use{
@@ -115,3 +117,60 @@ require'nvim-treesitter.configs'.setup {
         additional_vim_regex_highlighting = true
     }
 }
+
+vim.lsp.enable('lua_ls')
+vim.lsp.config('lua_ls', {
+    on_init = function(client)
+        if client.workspace_folders then
+            local path = client.workspace_folders[1].name
+            if
+                path ~= vim.fn.srtdpath('config')
+                and (vim.uv.fs_state(path .. '/.luarc.json') or vim.uv.fs_state(path .. '/.luarc.jsonc'))
+            then
+                return
+            end
+        end
+
+        client.config.settings.Lua = vim.tbl_deep_extend('force', client.config.settings.Lua, {
+            runtime = {
+                version = 'LuaJIT',
+
+                path = {
+                    'lua/?.lua',
+                    'lua/?/init.lua',
+                },
+            },
+
+            workspace = {
+                checkThirdParty = false,
+                library = {
+                    vim.env.VIMRUNTIME
+                }
+            }
+        })
+    end,
+    settings = {
+        Lua = {}
+    }
+})
+
+vim.lsp.enable('ada_ls')
+
+vim.lsp.config('ada_ls', {
+    on_attach = function(client, bufnr)
+        vim.lsp.completion.enable(true, client.id, bufnr, {
+            autotrigger = true,
+            convert = function(item)
+                return { abbr = item.label:gsub("%b()", "") }
+            end,
+        })
+        vim.keymap.set("i", "<C-space>", vim.lsp.completion.get, {desc = "trigger autocompletion"})
+    end,
+    settings = {
+        ada = {
+            projectFile = "project.gpr";
+        }
+    }
+})
+
+vim.opt.completeopt = { "menuone", "noselect", "popup" }