refactor: move luaurc logic to another file

lua/luau-lsp/init.lua

@@ -1,43 +1,8 @@
-local json = require "luau-lsp.json"
-local log = require "luau-lsp.log"
-
----@param paths string[]
----@return file*?
-local function find_luaurc(paths)
-  local luaurc = io.open(".luaurc", "r")
-  if luaurc then
-    return luaurc
-  end
-
-  for _, path in ipairs(paths) do
-    luaurc = io.open(path .. "/.luaurc", "r")
-    if luaurc then
-      return luaurc
-    end
-  end
-end
-
 local M = {}
 
----@param paths? string[]
 ---@return table<string, string>?
-function M.aliases(paths)
-  local luaurc = find_luaurc(paths or { "src", "lib" })
-  if not luaurc then
-    return
-  end
-
-  local ok, content = pcall(json.decode, luaurc:read "a")
-  if not ok then
-    log.error("Failed to read '.luaurc': %s", content)
-    return
-  end
-
-  local aliases = vim.empty_dict()
-  for alias, value in pairs(content.aliases or {}) do
-    aliases["@" .. alias] = value
-  end
-  return aliases
+function M.aliases()
+  return require("luau-lsp.luaurc").aliases { "lib", "src" }
 end
 
 ---@param opts luau-lsp.Config

lua/luau-lsp/log.lua

@@ -40,7 +40,6 @@ end)
 local function create_logger(level, levelnr)
   return function(message, ...)
     message = string.format(message, ...)
-
     write(message, level)
 
     if levelnr >= M.level then

lua/luau-lsp/luaurc.lua

@@ -0,0 +1,45 @@
+local json = require "luau-lsp.json"
+local log = require "luau-lsp.log"
+local util = require "luau-lsp.util"
+
+local M = {}
+
+---@param dirs string[]
+---@return string?
+function M.find_luaurc(dirs)
+  if util.is_file ".luaurc" then
+    return ".luaurc"
+  end
+
+  for _, dir in ipairs(dirs) do
+    if util.is_file(vim.fs.joinpath(dir, ".luaurc")) then
+      return vim.fs.joinpath(dir, ".luaurc")
+    end
+  end
+end
+
+---@param dirs? string[]
+---@return table<string, string>?
+function M.aliases(dirs)
+  local path = M.find_luaurc(dirs or {})
+  if not path then
+    return
+  end
+
+  local luaurc = io.open(path, "r")
+  assert(luaurc)
+
+  local ok, content = pcall(json.decode, luaurc:read "a")
+  if not ok then
+    log.error("Failed to read '.luaurc': %s", content)
+    return
+  end
+
+  local aliases = vim.empty_dict()
+  for alias, value in pairs(content.aliases or {}) do
+    aliases["@" .. alias] = value
+  end
+  return aliases
+end
+
+return M

spec/luaurc_spec.lua

@@ -1,9 +1,19 @@
 describe(".luaurc", function()
-  it("should read .luaurc aliases", function()
-    local aliases = require("luau-lsp").aliases {
+  it("should find a .luaurc file", function()
+    local path = require("luau-lsp.luaurc").find_luaurc {
+      "spec/roblox-project",
       "spec/roblox-project/lib",
       "spec/roblox-project/src",
+    }
+
+    assert.same("spec/roblox-project/.luaurc", path)
+  end)
+
+  it("should read .luaurc aliases", function()
+    local aliases = require("luau-lsp.luaurc").aliases {
       "spec/roblox-project",
+      "spec/roblox-project/lib",
+      "spec/roblox-project/src",
     }
 
     assert.same({