Add mason, and all the lsp things needed

config/nvim/plugins/lsp.lua

@@ -1,43 +1,124 @@
-local on_attach = function(_, bufnr)
+local lspconfig = require("lspconfig")
 
-  local bufmap = function(keys, func)
-    vim.keymap.set('n', keys, func, { buffer = bufnr })
-  end
+-- import mason_lspconfig plugin
+local mason_lspconfig = require("mason-lspconfig")
 
-  bufmap('<leader>r', vim.lsp.buf.rename)
-  bufmap('<leader>a', vim.lsp.buf.code_action)
+-- import cmp-nvim-lsp plugin
+local cmp_nvim_lsp = require("cmp_nvim_lsp")
 
-  bufmap('gd', vim.lsp.buf.definition)
-  bufmap('gD', vim.lsp.buf.declaration)
-  bufmap('gI', vim.lsp.buf.implementation)
-  bufmap('<leader>D', vim.lsp.buf.type_definition)
+local keymap = vim.keymap -- for conciseness
 
-  bufmap('gr', require('telescope.builtin').lsp_references)
-  bufmap('<leader>s', require('telescope.builtin').lsp_document_symbols)
-  bufmap('<leader>S', require('telescope.builtin').lsp_dynamic_workspace_symbols)
+vim.api.nvim_create_autocmd("LspAttach", {
+  group = vim.api.nvim_create_augroup("UserLspConfig", {}),
+  callback = function(ev)
+    -- Buffer local mappings.
+    -- See `:help vim.lsp.*` for documentation on any of the below functions
+    local opts = { buffer = ev.buf, silent = true }
 
-  bufmap('K', vim.lsp.buf.hover)
+    -- set keybinds
+    opts.desc = "Show LSP references"
+    keymap.set("n", "gR", "<cmd>Telescope lsp_references<CR>", opts) -- show definition, references
 
-  vim.api.nvim_buf_create_user_command(bufnr, 'Format', function(_)
-    vim.lsp.buf.format()
-  end, {})
+    opts.desc = "Go to declaration"
+    keymap.set("n", "gD", vim.lsp.buf.declaration, opts) -- go to declaration
+
+    opts.desc = "Show LSP definitions"
+    keymap.set("n", "gd", "<cmd>Telescope lsp_definitions<CR>", opts) -- show lsp definitions
+
+    opts.desc = "Show LSP implementations"
+    keymap.set("n", "gi", "<cmd>Telescope lsp_implementations<CR>", opts) -- show lsp implementations
+
+    opts.desc = "Show LSP type definitions"
+    keymap.set("n", "gt", "<cmd>Telescope lsp_type_definitions<CR>", opts) -- show lsp type definitions
+
+    opts.desc = "See available code actions"
+    keymap.set({ "n", "v" }, "<leader>ca", vim.lsp.buf.code_action, opts) -- see available code actions, in visual mode will apply to selection
+
+    opts.desc = "Smart rename"
+    keymap.set("n", "<leader>rn", vim.lsp.buf.rename, opts) -- smart rename
+
+    opts.desc = "Show buffer diagnostics"
+    keymap.set("n", "<leader>D", "<cmd>Telescope diagnostics bufnr=0<CR>", opts) -- show  diagnostics for file
+
+    opts.desc = "Show line diagnostics"
+    keymap.set("n", "<leader>d", vim.diagnostic.open_float, opts) -- show diagnostics for line
+
+    opts.desc = "Go to previous diagnostic"
+    keymap.set("n", "[d", vim.diagnostic.goto_prev, opts) -- jump to previous diagnostic in buffer
+
+    opts.desc = "Go to next diagnostic"
+    keymap.set("n", "]d", vim.diagnostic.goto_next, opts) -- jump to next diagnostic in buffer
+
+    opts.desc = "Show documentation for what is under cursor"
+    keymap.set("n", "K", vim.lsp.buf.hover, opts) -- show documentation for what is under cursor
+
+    opts.desc = "Restart LSP"
+    keymap.set("n", "<leader>rs", ":LspRestart<CR>", opts) -- mapping to restart lsp if necessary
+  end,
+})
+
+-- used to enable autocompletion (assign to every lsp server config)
+local capabilities = cmp_nvim_lsp.default_capabilities()
+
+-- Change the Diagnostic symbols in the sign column (gutter)
+-- (not in youtube nvim video)
+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 = "" })
 end
 
-local capabilities = vim.lsp.protocol.make_client_capabilities()
-capabilities = require('cmp_nvim_lsp').default_capabilities(capabilities)
-
-require('neodev').setup()
-require('lspconfig').lua_ls.setup {
-    on_attach = on_attach,
-    capabilities = capabilities,
-	root_dir = function()
-        return vim.loop.cwd()
-    end,
-	cmd = { "lua-lsp" },
-    settings = {
+mason_lspconfig.setup_handlers({
+  -- default handler for installed servers
+  function(server_name)
+    lspconfig[server_name].setup({
+      capabilities = capabilities,
+    })
+  end,
+  ["svelte"] = function()
+    -- configure svelte server
+    lspconfig["svelte"].setup({
+      capabilities = capabilities,
+      on_attach = function(client, bufnr)
+        vim.api.nvim_create_autocmd("BufWritePost", {
+          pattern = { "*.js", "*.ts" },
+          callback = function(ctx)
+            -- Here use ctx.match instead of ctx.file
+            client.notify("$/onDidChangeTsOrJsFile", { uri = ctx.match })
+          end,
+        })
+      end,
+    })
+  end,
+  ["graphql"] = function()
+    -- configure graphql language server
+    lspconfig["graphql"].setup({
+      capabilities = capabilities,
+      filetypes = { "graphql", "gql", "svelte", "typescriptreact", "javascriptreact" },
+    })
+  end,
+  ["emmet_ls"] = function()
+    -- configure emmet language server
+    lspconfig["emmet_ls"].setup({
+      capabilities = capabilities,
+      filetypes = { "html", "typescriptreact", "javascriptreact", "css", "sass", "scss", "less", "svelte" },
+    })
+  end,
+  ["lua_ls"] = function()
+    -- configure lua server (with special settings)
+    lspconfig["lua_ls"].setup({
+      capabilities = capabilities,
+      settings = {
         Lua = {
-            workspace = { checkThirdParty = false },
-            telemetry = { enable = false },
+          -- make the language server recognize "vim" global
+          diagnostics = {
+            globals = { "vim" },
+          },
+          completion = {
+            callSnippet = "Replace",
+          },
         },
-    }
-}
+      },
+    })
+  end,
+})

config/nvim/plugins/mason.lua

@@ -0,0 +1,43 @@
+local mason = require("mason")
+
+-- import mason-lspconfig
+local mason_lspconfig = require("mason-lspconfig")
+
+-- enable mason and configure icons
+mason.setup({
+  ui = {
+    icons = {
+      package_installed = "✓",
+      package_pending = "➜",
+      package_uninstalled = "✗",
+    },
+  },
+})
+
+mason_lspconfig.setup({
+  -- list of servers for mason to install
+  ensure_installed = {
+    "bashls",
+    "docker",
+    "docker_compose_language_service",
+    "gopls",
+    "jsonls",
+    "markdown_oxide",
+    "taplo",
+    "tailwindcss",
+    "yamlls",
+    "nil_ls",
+    "rust_analyzer",
+    "sqlls",
+    "tsserver",
+    "html",
+    "cssls",
+    "tailwindcss",
+    "svelte",
+    "lua_ls",
+    "graphql",
+    "emmet_ls",
+    "prismals",
+    "pyright",
+  },
+})

hosts/familypc/home.nix

@@ -194,6 +194,8 @@ in
       	nvim-web-devicons
         nvim-cmp
         nvim-surround
+        nvim-lspconfig
+        cmp-nvim-lsp
         cmp-buffer
         luasnip
         cmp_luasnip
@@ -213,6 +215,8 @@ in
         nvim-tree-lua
         telescope-fzf-native-nvim
         vim-tmux-navigator
+        mason-nvim
+        mason-lspconfig-nvim
       ];
       extraLuaConfig = ''
         ${builtins.readFile ../../config/nvim/options.lua}
@@ -222,6 +226,7 @@ in
         ${builtins.readFile ../../config/nvim/plugins/auto-session.lua}
         ${builtins.readFile ../../config/nvim/plugins/comment.lua}
         ${builtins.readFile ../../config/nvim/plugins/cmp.lua}
+        ${builtins.readFile ../../config/nvim/plugins/lsp.lua}
         ${builtins.readFile ../../config/nvim/plugins/nvim-tree.lua}
         ${builtins.readFile ../../config/nvim/plugins/telescope.lua}
         ${builtins.readFile ../../config/nvim/plugins/todo-comments.lua}