feat(no-null-ls)!: Remove null-ls, replace with conform and nvim-lint

BREAKING CHANGE: conform.nvim and nvim-lint introduced again after v1.0.0

lua/NeutronVim/plugins/LSP/formatting.lua

@@ -0,0 +1,54 @@
+return {
+  "stevearc/conform.nvim",
+  event = { "BufReadPre", "BufNewFile" },
+  lazy = true,
+  keys = {
+    {
+      "<leader>mf",
+      "<cmd>lua require('conform').format({lsp_fallback = true,async = false, timeout_ms = 500})<CR>",
+      mode = { "n", "v" },
+      desc = "Format",
+    },
+  },
+
+  config = function()
+    local conform_status_ok, conform = pcall(require, "conform")
+    if not conform_status_ok then
+      print("conform not found!")
+    end
+    conform.setup({
+      formatters_by_ft = {
+        javascript = { "prettierd" },
+        javascriptreact = { "prettierd" },
+        typescript = { "prettierd" },
+        typescriptreact = { "prettierd" },
+        json = { "prettierd" },
+        yaml = { "prettierd" },
+        markdown = { "prettierd" },
+        html = { "prettierd" },
+        css = { "prettierd" },
+        svelte = { "prettierd" },
+        lua = { "stylua" },
+        python = function(bufnr)
+          if require("conform").get_formatter_info("ruff_format", bufnr).available then
+            return { "ruff_format" }
+          else
+            return { "isort", "black" }
+          end
+        end,
+        rust = { "rustfmt" },
+        cpp = { "clang-format" },
+        c = { "clang-format" },
+        cmake = { "cmake_format" },
+        ["*"] = { "codespell" },
+        fish = { "fish_indent" },
+        sh = { "shfmt" },
+        bash = { "shfmt" },
+      },
+      format_on_save = {
+        lsp_fallback = true,
+        async = true,
+      },
+    })
+  end,
+}

lua/NeutronVim/plugins/LSP/linting.lua

@@ -0,0 +1,29 @@
+return {
+  "daUnknownCoder/nvim-lint",
+  event = { "BufReadPre", "BufNewFile" },
+  lazy = true,
+  keys = {
+    { "<leader>mt", "<cmd>lua require('lint').try_lint()<cr>", desc = "Lint" },
+  },
+  config = function()
+    local linter_status_ok, lint = pcall(require, "lint")
+    if not linter_status_ok then
+      print("nvim-lint not found!")
+    end
+    lint.linters_by_ft = {
+      javascript = { "eslint_d" },
+      javascriptreact = { "eslint_d" },
+      typescript = { "eslint_d" },
+      typescriptreact = { "eslint_d" },
+      lua = { "luacheck" },
+      python = { "pylint" },
+    }
+    local lint_augroup = vim.api.nvim_create_augroup("lint", { clear = true })
+    vim.api.nvim_create_autocmd({ "BufEnter", "BufWritePost", "InsertLeave" }, {
+      group = lint_augroup,
+      callback = function()
+        lint.try_lint()
+      end,
+    })
+  end,
+}

lua/NeutronVim/plugins/LSP/mason.lua

@@ -4,18 +4,10 @@ return {
   lazy = true,
   dependencies = {
     { "williamboman/mason-lspconfig.nvim", cmd = { "LspInstall", "LspUninstall" } },
+    { "WhoIsSethDaniel/mason-tool-installer.nvim" },
   },
   opts = {
-    ensure_installed = {
-      "black",
-      "isort",
-      "flake8",
-      "ruff",
-      "eslint_d",
-      "luacheck",
-      "prettierd",
-      "stylua",
-    },
+    ensure_installed = {},
   },
   config = function()
     local icons_ok, icons = pcall(require, "NeutronVim.core.icons")
@@ -30,11 +22,10 @@ return {
     if not mason_lspconfig_status_ok then
       print("mason-lspconfig not found!")
     end
-    local mason_null_ls_status_ok, mason_null_ls = pcall(require, "mason-null-ls")
-    if not mason_null_ls_status_ok then
-      print("mason-null-ls not found!")
+    local mason_tool_installer_status_ok, mason_tool_installer = pcall(require, "mason-tool-installer")
+    if not mason_tool_installer_status_ok then
+      print("mason-tool-installer not found!")
     end
-
     mason.setup({
       ui = {
         icons = {
@@ -52,19 +43,32 @@ return {
         "lua_ls",
         "pyright",
         "marksman",
+        "eslint",
+        "clangd",
+        "cmake",
+        "bashls",
       },
       automatic_installation = true,
     })
-    mason_null_ls.setup({
+    mason_tool_installer.setup({
       ensure_installed = {
         "prettierd",
+        "eslint_d",
         "stylua",
         "black",
         "isort",
-        "ruff",
-        "eslint_d",
+        "pylint",
         "luacheck",
+        "ruff",
+        "rustfmt",
+        "clang-format",
+        "cmakelang",
+        "codespell",
+        "shfmt",
       },
+      auto_update = true,
+      run_on_start = true,
+      start_delay = 5000,
     })
   end,
 }

lua/NeutronVim/plugins/UI/lualine.lua

@@ -40,6 +40,18 @@ return {
             symbols = { modified = " " .. icons.ui.Pencil, readonly = " " .. icons.ui.Lock, unnamed = " [None] " },
             path = 0,
           },
+          {
+            function()
+              local lint_progress = function()
+                local linters = require("lint").get_running()
+                if #linters == 0 then
+                  return "󰦕 Linting completed"
+                end
+                return "󱉶 Linting with '" .. table.concat(linters, ", ") .. "' in progress"
+              end
+              return lint_progress()
+            end,
+          },
           {
             function()
               return "%="
@@ -73,6 +85,11 @@ return {
           },
         },
         lualine_x = {
+          {
+            function()
+              return "%="
+            end,
+          },
           {
             "diff",
             symbols = {