feat: add option to pass the stylua.toml location (#2)

* feat: add option to pass the stylua.toml location

* fix: logic to set path

* docs: update

* make ci happy

doc/stylua.txt

@@ -12,10 +12,23 @@ To find out more:
 https://github.com/wesleimp/stylua.nvim
 
 
-stylua.format({bufnr})                                           *stylua.format*
-    Format your Lua code. If {bufnr} is not set, the current buffer will be
+stylua.format({opts})                                           *stylua.format*
+    Format your Lua code. If {opts} is not set, some defaults will be
     used to format >
 
+    Parameters: ~
+        {opts} (table)  options to pass to the formatter
+
+    Options: ~
+        {bufnr}             (number)   specify the buffer number where
+                                       treesitter should run. (default:
+                                       current buffer)
+
+        {config_path}       (string)   specify the config file to use.
+                                       (default: .stylua.toml or
+                                       stylua.toml defined in the
+                                       project)
+
     :lua require("stylua").format()
 <
 vim:tw=78:ts=8:ft=help:norl:

lua/stylua/init.lua

@@ -38,10 +38,17 @@ local function find_stylua(path)
   return M._config[path]
 end
 
-function M.format(bufnr)
-  bufnr = bufnr or vim.api.nvim_get_current_buf()
-  local filepath = Path:new(vim.api.nvim_buf_get_name(bufnr)):absolute()
-  local stylua_toml = find_stylua(filepath)
+function M.format(opts)
+  opts = opts or {}
+  local bufnr = opts.bufnr or vim.api.nvim_get_current_buf()
+
+  local stylua_toml
+  if opts.config_path then
+    stylua_toml = Path:new(opts.config_path):absolute()
+  else
+    local filepath = Path:new(vim.api.nvim_buf_get_name(bufnr)):absolute()
+    stylua_toml = find_stylua(filepath)
+  end
 
   local args = {}