fix: setup sequence

Author: v1nh1shungry

lua/cppman/index.lua

@@ -5,9 +5,7 @@ local utils = require("cppman.utils")
 local CACHE_HOME = os.getenv("XDG_CACHE_HOME") or vim.fs.joinpath(os.getenv("HOME"), ".cache")
 local CACHE_DIR = vim.fs.joinpath(CACHE_HOME, "cppman")
 
-local index_db_path = vim.fs.joinpath(CACHE_DIR, "index.db")
-index_db_path = vim.fn.filereadable(index_db_path) == 1 and index_db_path
-  or require("cppman.config").get().index_db_path
+local index_db_path
 
 ---@type vim.SystemObj
 local job = nil
@@ -16,6 +14,10 @@ local job = nil
 M.entries = {}
 
 M.setup = function()
+  index_db_path = vim.fs.joinpath(CACHE_DIR, "index.db")
+  index_db_path = vim.fn.filereadable(index_db_path) == 1 and index_db_path
+    or require("cppman.config").get().index_db_path
+
   if vim.fn.filereadable(index_db_path) == 0 then
     M.fetch()
   else

lua/cppman/init.lua

@@ -8,9 +8,17 @@ local function pick(entries)
   require("cppman.picker." .. config.get().picker)(entries)
 end
 
----@param opts Cppman.Config
+---@param opts? Cppman.Config
 M.setup = function(opts)
-  config.setup(opts)
+  if vim.g.loaded_cppman then
+    return
+  end
+
+  config.setup(opts or {})
+
+  require("cppman.index").setup()
+
+  vim.g.loaded_cppman = true
 end
 
 M.fetch_index = function()

plugin/cppman.lua

@@ -1,10 +1,9 @@
-local os = vim.uv.os_uname().sysname
-if os ~= "Linux" then
-  require("cppman.utils").error(os .. " is not supported")
-  return
-end
-
-require("cppman.index").setup()
+-- TODO: A rough fix for setup sequence, refactor it later
+vim.defer_fn(function()
+  if not vim.g.loaed_cppman then
+    require("cppman").setup()
+  end
+end, 0)
 
 vim.api.nvim_create_user_command("Cppman", function(args)
   if args.args == "" then