Use the LazyVim oxc extra instead of hand-rolled oxlint config

The oxlint LSP now enables type-aware linting on its own when tsgolint is
present and .oxlintrc.json mentions typescript, and ships :LspOxlintFixAll --
which is what the oxlint_fix function reimplemented by shelling out to the CLI.
The extra also sets fixKind = "all" and prefers the top-level oxlint config in
monorepos. Fixes now apply as a workspace edit instead of writing to disk and
reloading.

oxfmt takes js/ts/json/vue over prettier; prettier keeps css/html/yaml/markdown.
Add oxlint to mason so it resolves outside projects with a local install.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

lazyvim.json

@@ -29,6 +29,7 @@
     "lazyvim.plugins.extras.lang.tex",
     "lazyvim.plugins.extras.lang.toml",
     "lazyvim.plugins.extras.lang.typescript",
+    "lazyvim.plugins.extras.lang.typescript.oxc",
     "lazyvim.plugins.extras.lang.typescript.tsgo",
     "lazyvim.plugins.extras.lang.typst",
     "lazyvim.plugins.extras.lang.yaml",

lua/config/keymaps.lua

@@ -35,62 +35,3 @@ if vim.fn.has("mac") == 1 then
   vim.keymap.set("t", "<D-v>", '<C-\\><C-n>"+pi')
   vim.keymap.set("t", "<D-s-v>", '<C-\\><C-n>"+pi')
 end
-
-local function oxlint_cmd(bufnr)
-  local file = vim.api.nvim_buf_get_name(bufnr)
-  if file == "" then
-    return nil
-  end
-
-  local root = vim.fs.dirname(vim.fs.find({ "package.json", ".oxlintrc.json", "oxlint.config.ts" }, {
-    path = file,
-    upward = true,
-  })[1] or "")
-
-  local local_bin = root ~= "" and vim.fs.joinpath(root, "node_modules", ".bin", "oxlint") or nil
-  return local_bin and vim.fn.executable(local_bin) == 1 and local_bin or "oxlint"
-end
-
-local function oxlint_fix()
-  local bufnr = vim.api.nvim_get_current_buf()
-  local file = vim.api.nvim_buf_get_name(bufnr)
-  if file == "" then
-    vim.notify("Oxlint fix requires a file-backed buffer", vim.log.levels.WARN)
-    return
-  end
-
-  if vim.bo[bufnr].modified then
-    vim.cmd.update()
-  end
-
-  local cmd = oxlint_cmd(bufnr)
-  if not cmd or vim.fn.executable(cmd) ~= 1 then
-    vim.notify("oxlint executable not found", vim.log.levels.ERROR)
-    return
-  end
-
-  local cwd = vim.fs.dirname(vim.fs.find({ "package.json", ".oxlintrc.json", "oxlint.config.ts" }, {
-    path = file,
-    upward = true,
-  })[1] or file)
-
-  vim.system({ cmd, "--fix", "--type-aware", file }, { cwd = cwd, text = true }, function(result)
-    vim.schedule(function()
-      if result.code == 0 or result.code == 1 then
-        vim.cmd.checktime()
-        pcall(require("lint").try_lint, "oxlint")
-        local level = result.code == 0 and vim.log.levels.INFO or vim.log.levels.WARN
-        local msg = result.code == 0 and "Oxlint fix completed" or "Oxlint fix completed with remaining diagnostics"
-        vim.notify(msg, level)
-      else
-        local output = table.concat(vim.tbl_filter(function(v)
-          return v and v ~= ""
-        end, { result.stdout, result.stderr }), "\n")
-        vim.notify(output ~= "" and output or "Oxlint fix failed", vim.log.levels.ERROR)
-      end
-    end)
-  end)
-end
-
-vim.api.nvim_create_user_command("OxlintFix", oxlint_fix, { desc = "Fix current file with oxlint" })
-vim.keymap.set("n", "<leader>cx", oxlint_fix, { desc = "Oxlint Fix" })

lua/plugins/conform.lua

@@ -0,0 +1,24 @@
+local oxfmt_owned = {
+  "javascript",
+  "javascriptreact",
+  "typescript",
+  "typescriptreact",
+  "json",
+  "jsonc",
+  "vue",
+}
+
+return {
+  "stevearc/conform.nvim",
+  opts = function(_, opts)
+    opts.formatters_by_ft = opts.formatters_by_ft or {}
+    for _, ft in ipairs(oxfmt_owned) do
+      local formatters = opts.formatters_by_ft[ft]
+      if formatters then
+        opts.formatters_by_ft[ft] = vim.tbl_filter(function(formatter)
+          return formatter ~= "prettier"
+        end, formatters)
+      end
+    end
+  end,
+}

lua/plugins/linting.lua

@@ -1,16 +1,7 @@
 return {
   "mfussenegger/nvim-lint",
   opts = {
-    linters_by_ft = {
-      javascript = { "oxlint" },
-      typescript = { "oxlint" },
-      javascriptreact = { "oxlint" },
-      typescriptreact = { "oxlint" },
-    },
     linters = {
-      oxlint = {
-        prepend_args = { "--type-aware" },
-      },
       ["markdownlint-cli2"] = {
         prepend_args = {
           "--config",

lua/plugins/lspconfig.lua

@@ -1,4 +1,5 @@
 return {
+  {
     "neovim/nvim-lspconfig",
     opts = {
       diagnostics = {
@@ -10,8 +11,11 @@ return {
           -- removing .proto from the list of filetypes since clangd doesn't seem to be able to parse them
           filetypes = { "c", "cpp", "objc", "objcpp", "cuda" },
         },
-      -- Disable oxlint LSP - using nvim-lint with CLI instead for type-aware support
+        oxlint = {
-      oxlint = { enabled = false },
+          keys = {
+            { "<leader>cx", "<cmd>LspOxlintFixAll<cr>", desc = "Oxlint Fix All" },
+          },
+        },
       },
       -- Disable eslint formatting as it's slow and timing out on big projects
       -- taken from
@@ -22,4 +26,9 @@ return {
         end,
       },
     },
+  },
+  {
+    "mason-org/mason.nvim",
+    opts = { ensure_installed = { "oxlint" } },
+  },
 }