feat!: make conform.nvim and nvim-lint the default formatters/linters

lua/lazyvim/plugins/extras/formatting/black.lua

@@ -10,6 +10,7 @@ return {
     optional = true,
     opts = function(_, opts)
       local nls = require("null-ls")
+      opts.sources = opts.sources or {}
       table.insert(opts.sources, nls.builtins.formatting.black)
     end,
   },

lua/lazyvim/plugins/extras/formatting/prettier.lua

@@ -10,6 +10,7 @@ return {
     optional = true,
     opts = function(_, opts)
       local nls = require("null-ls")
+      opts.sources = opts.sources or {}
       table.insert(opts.sources, nls.builtins.formatting.prettierd)
     end,
   },

lua/lazyvim/plugins/extras/lang/cmake.lua

@@ -12,8 +12,7 @@ return {
     optional = true,
     opts = function(_, opts)
       local nls = require("null-ls")
-      opts.sources = opts.sources or {}
+      opts.sources = vim.list_extend(opts.sources or {}, {
-      vim.list_extend(opts.sources, {
         nls.builtins.diagnostics.cmake_lint,
       })
     end,

lua/lazyvim/plugins/extras/lang/docker.lua

@@ -19,8 +19,7 @@ return {
     optional = true,
     opts = function(_, opts)
       local nls = require("null-ls")
-      opts.sources = opts.sources or {}
+      opts.sources = vim.list_extend(opts.sources or {}, {
-      vim.list_extend(opts.sources, {
         nls.builtins.diagnostics.hadolint,
       })
     end,

lua/lazyvim/plugins/extras/lang/elixir.lua

@@ -37,8 +37,7 @@ return {
         return
       end
       local nls = require("null-ls")
-      opts.sources = opts.sources or {}
+      opts.sources = vim.list_extend(opts.sources or {}, {
-      vim.list_extend(opts.sources, {
         nls.builtins.diagnostics.credo,
       })
     end,

lua/lazyvim/plugins/extras/lang/go.lua

@@ -86,14 +86,12 @@ return {
     "nvimtools/none-ls.nvim",
     optional = true,
     opts = function(_, opts)
-      if type(opts.sources) == "table" then
+      local nls = require("null-ls")
-        local nls = require("null-ls")
+      opts.sources = vim.list_extend(opts.sources or {}, {
-        vim.list_extend(opts.sources, {
+        nls.builtins.code_actions.gomodifytags,
-          nls.builtins.code_actions.gomodifytags,
+        nls.builtins.code_actions.impl,
-          nls.builtins.code_actions.impl,
+        nls.builtins.formatting.goimports,
-          nls.builtins.formatting.goimports,
+      })
-        })
-      end
     end,
   },
   {

lua/lazyvim/plugins/extras/lang/omnisharp.lua

@@ -13,6 +13,7 @@ return {
     optional = true,
     opts = function(_, opts)
       local nls = require("null-ls")
+      opts.sources = opts.sources or {}
       table.insert(opts.sources, nls.builtins.formatting.csharpier)
     end,
   },

lua/lazyvim/plugins/extras/lang/terraform.lua

@@ -28,13 +28,11 @@ return {
     "nvimtools/none-ls.nvim",
     optional = true,
     opts = function(_, opts)
-      if type(opts.sources) == "table" then
+      local null_ls = require("null-ls")
-        local null_ls = require("null-ls")
+      opts.sources = vim.list_extend(opts.sources or {}, {
-        vim.list_extend(opts.sources, {
+        null_ls.builtins.formatting.terraform_fmt,
-          null_ls.builtins.formatting.terraform_fmt,
+        null_ls.builtins.diagnostics.terraform_validate,
-          null_ls.builtins.diagnostics.terraform_validate,
+      })
-        })
-      end
     end,
   },
   {

lua/lazyvim/plugins/extras/lsp/none-ls.lua

@@ -0,0 +1,45 @@
+local Util = require("lazyvim.util")
+
+return {
+  -- none-ls
+  {
+    "nvimtools/none-ls.nvim",
+    event = "LazyFile",
+    dependencies = { "mason.nvim" },
+    init = function()
+      Util.on_very_lazy(function()
+        -- register the formatter with LazyVim
+        require("lazyvim.util").format.register({
+          name = "none-ls.nvim",
+          priority = 200, -- set higher than conform, the builtin formatter
+          primary = true,
+          format = function(buf)
+            return Util.lsp.format({
+              bufnr = buf,
+              filter = function(client)
+                return client.name == "null-ls"
+              end,
+            })
+          end,
+          sources = function(buf)
+            local ret = require("null-ls.sources").get_available(vim.bo[buf].filetype, "NULL_LS_FORMATTING") or {}
+            return vim.tbl_map(function(source)
+              return source.name
+            end, ret)
+          end,
+        })
+      end)
+    end,
+    opts = function(_, opts)
+      local nls = require("null-ls")
+      opts.root_dir = opts.root_dir
+        or require("null-ls.utils").root_pattern(".null-ls-root", ".neoconf.json", "Makefile", ".git")
+      opts.sources = vim.list_extend(opts.sources or {}, {
+        nls.builtins.formatting.fish_indent,
+        nls.builtins.diagnostics.fish,
+        nls.builtins.formatting.stylua,
+        nls.builtins.formatting.shfmt,
+      })
+    end,
+  },
+}

lua/lazyvim/plugins/linting.lua

@@ -0,0 +1,67 @@
+return {
+  {
+    "mfussenegger/nvim-lint",
+    event = "LazyFile",
+    opts = {
+      -- Event to trigger linters
+      events = { "BufWritePost", "BufReadPost", "InsertLeave" },
+      linters_by_ft = {
+        fish = { "fish" },
+      },
+      -- LazyVim extension to easily override linter options
+      -- or add custom linters.
+      ---@type table<string,table>
+      linters = {
+        -- -- Example of using selene only when a selene.toml file is present
+        -- selene = {
+        --   -- `condition` is another LazyVim extension that allows you to
+        --   -- dynamically enable/disable linters based on the context.
+        --   condition = function(ctx)
+        --     return vim.fs.find({ "selene.toml" }, { path = ctx.filename, upward = true })[1]
+        --   end,
+        -- },
+      },
+    },
+    config = function(_, opts)
+      local M = {}
+
+      local lint = require("lint")
+      for name, linter in pairs(opts.linters) do
+        if type(linter) == "table" and type(lint.linters) == "table" then
+          lint.linters[name] = vim.tbl_deep_extend("force", lint.linters[name], linter)
+        end
+      end
+      lint.linters_by_ft = opts.linters_by_ft
+
+      function M.debounce(ms, fn)
+        local timer = vim.loop.new_timer()
+        return function(...)
+          local argv = { ... }
+          timer:start(ms, 0, function()
+            timer:stop()
+            vim.schedule_wrap(fn)(unpack(argv))
+          end)
+        end
+      end
+
+      function M.lint()
+        local names = lint.linters_by_ft[vim.bo.filetype] or {}
+        local ctx = { filename = vim.api.nvim_buf_get_name(0) }
+        ctx.dirname = vim.fn.fnamemodify(ctx.filename, ":h")
+        names = vim.tbl_filter(function(name)
+          local linter = lint.linters[name]
+          return linter and not (type(linter) == "table" and linter.condition and not linter.condition(ctx))
+        end, names)
+
+        if #names > 0 then
+          lint.try_lint(names)
+        end
+      end
+
+      vim.api.nvim_create_autocmd(opts.events, {
+        group = vim.api.nvim_create_augroup("nvim-lint", { clear = true }),
+        callback = M.debounce(100, M.lint),
+      })
+    end,
+  },
+}

lua/lazyvim/plugins/lsp/init.lua

@@ -200,49 +200,6 @@ return {
     end,
   },
 
-  -- formatters
-  {
-    "nvimtools/none-ls.nvim",
-    event = "LazyFile",
-    dependencies = { "mason.nvim" },
-    opts = function()
-      local nls = require("null-ls")
-      return {
-        root_dir = require("null-ls.utils").root_pattern(".null-ls-root", ".neoconf.json", "Makefile", ".git"),
-        sources = {
-          nls.builtins.formatting.fish_indent,
-          nls.builtins.diagnostics.fish,
-          nls.builtins.formatting.stylua,
-          nls.builtins.formatting.shfmt,
-        },
-      }
-    end,
-    config = function(_, opts)
-      require("null-ls").setup(opts)
-
-      -- register the formatter with LazyVim
-      require("lazyvim.util").format.register({
-        name = "none-ls.nvim",
-        priority = 50,
-        primary = true,
-        format = function(buf)
-          return Util.lsp.format({
-            bufnr = buf,
-            filter = function(client)
-              return client.name == "null-ls"
-            end,
-          })
-        end,
-        sources = function(buf)
-          local ret = require("null-ls.sources").get_available(vim.bo[buf].filetype, "NULL_LS_FORMATTING") or {}
-          return vim.tbl_map(function(source)
-            return source.name
-          end, ret)
-        end,
-      })
-    end,
-  },
-
   -- cmdline tools and lsp servers
   {
 

lua/lazyvim/util/format.lua

@@ -124,7 +124,26 @@ function M.format(opts)
   end
 end
 
+function M.health()
+  local Config = require("lazy.core.config")
+  local has_plugin = Config.spec.plugins["none-ls.nvim"]
+  local has_extra = vim.tbl_contains(Config.spec.modules, "lazyvim.plugins.extras.lsp.none-ls")
+  if has_plugin and not has_extra then
+    Util.warn({
+      "`conform.nvim` and `nvim-lint` are now the default forrmatters and linters in LazyVim.",
+      "",
+      "You can use those plugins together with `none-ls.nvim`,",
+      "but you need to enable the `lazyvim.plugins.extras.lsp.none-ls` extra,",
+      "for formatting to work correctly.",
+      "",
+      "In case you no longer want to use `none-ls.nvim`, just remove the spec from your config.",
+    })
+  end
+end
+
 function M.setup()
+  M.health()
+
   -- Autoformat autocmd
   vim.api.nvim_create_autocmd("BufWritePre", {
     group = vim.api.nvim_create_augroup("LazyFormat", {}),