[Feature] Expose null ls setup to user config (#1323)

* expose null_ls setup to user config

* add new config to example configs

* fix tabs with stylua

* change else statement in the example

init.lua

@@ -58,7 +58,7 @@ require("lsp").config()
 local null_status_ok, null_ls = pcall(require, "null-ls")
 if null_status_ok then
   null_ls.config {}
-  require("lspconfig")["null-ls"].setup {}
+  require("lspconfig")["null-ls"].setup(lvim.lsp.null_ls.setup)
 end
 
 local lsp_settings_status_ok, lsp_settings = pcall(require, "nlspsettings")

lua/default-config.lua

@@ -104,6 +104,9 @@ lvim = {
     on_init_callback = nil,
     ---@usage query the project directory from the language server and use it to set the CWD
     smart_cwd = true,
+    null_ls = {
+      setup = {},
+    },
   },
 
   plugins = {

utils/installer/config.example-no-ts.lua

@@ -61,6 +61,21 @@ lvim.builtin.treesitter.highlight.enabled = true
 --   --Enable completion triggered by <c-x><c-o>
 --   buf_set_option("omnifunc", "v:lua.vim.lsp.omnifunc")
 -- end
+-- you can overwrite the null_ls setup table (useful for setting the root_dir function)
+-- lvim.lsp.null_ls.setup = {
+--   root_dir = require("lspconfig").util.root_pattern("Makefile", ".git", "node_modules"),
+-- }
+-- or if you need something more advanced
+-- lvim.lsp.null_ls.setup.root_dir = function(fname)
+--   if vim.bo.filetype == "javascript" then
+--     return require("lspconfig/util").root_pattern("Makefile", ".git", "node_modules")(fname)
+--       or require("lspconfig/util").path.dirname(fname)
+--   elseif vim.bo.filetype == "php" then
+--     return require("lspconfig/util").root_pattern("Makefile", ".git", "composer.json")(fname) or vim.fn.getcwd()
+--   else
+--     return require("lspconfig/util").root_pattern("Makefile", ".git")(fname) or require("lspconfig/util").path.dirname(fname)
+--   end
+-- end
 
 -- set a formatter if you want to override the default lsp one (if it exists)
 -- lvim.lang.python.formatters = {

utils/installer/config.example.lua

@@ -70,6 +70,21 @@ lvim.builtin.treesitter.highlight.enabled = true
 --   --Enable completion triggered by <c-x><c-o>
 --   buf_set_option("omnifunc", "v:lua.vim.lsp.omnifunc")
 -- end
+-- you can overwrite the null_ls setup table (useful for setting the root_dir function)
+-- lvim.lsp.null_ls.setup = {
+--   root_dir = require("lspconfig").util.root_pattern("Makefile", ".git", "node_modules"),
+-- }
+-- or if you need something more advanced
+-- lvim.lsp.null_ls.setup.root_dir = function(fname)
+--   if vim.bo.filetype == "javascript" then
+--     return require("lspconfig/util").root_pattern("Makefile", ".git", "node_modules")(fname)
+--       or require("lspconfig/util").path.dirname(fname)
+--   elseif vim.bo.filetype == "php" then
+--     return require("lspconfig/util").root_pattern("Makefile", ".git", "composer.json")(fname) or vim.fn.getcwd()
+--   else
+--     return require("lspconfig/util").root_pattern("Makefile", ".git")(fname) or require("lspconfig/util").path.dirname(fname)
+--   end
+-- end
 
 -- set a formatter if you want to override the default lsp one (if it exists)
 -- lvim.lang.python.formatters = {