chore: remove diagnostic suppressions after tidying nits

.luarc.json

@@ -4,15 +4,6 @@
 	"diagnostics": {
 		"globals": [
 			"vim"
-		],
-		"disable": [
-			"cast-local-type",
-			"lowercase-global",
-			"missing-parameter",
-			"missing-return",
-			"missing-return-value",
-			"need-check-nil",
-			"param-type-mismatch"
 		]
 	}
 }

lua/nvim-tree/actions/reloaders/reloaders.lua

@@ -30,8 +30,8 @@ function M.reload_node_status(parent_node, projects)
 end
 
 local event_running = false
----@param _ table unused node passed by action
----@param unloaded_bufnr number optional bufnr recently unloaded via BufUnload event
+---@param _ table|nil unused node passed by action
+---@param unloaded_bufnr number|nil optional bufnr recently unloaded via BufUnload event
 function M.reload_explorer(_, unloaded_bufnr)
   if event_running or not core.get_explorer() or vim.v.exiting ~= vim.NIL then
     return

lua/nvim-tree/explorer/filters.lua

@@ -91,8 +91,8 @@ local function custom(path)
 end
 
 ---Prepare arguments for should_filter. This is done prior to should_filter for efficiency reasons.
----@param git_status table results of git.load_project_status(...)
----@param unloaded_bufnr number optional bufnr recently unloaded via BufUnload event
+---@param git_status table|nil optional results of git.load_project_status(...)
+---@param unloaded_bufnr number|nil optional bufnr recently unloaded via BufUnload event
 ---@return table
 --- git_status: reference
 --- unloaded_bufnr: copy

lua/nvim-tree/git/runner.lua

@@ -45,7 +45,7 @@ function Runner:_handle_incoming_data(prev_output, incoming)
     self._parse_status_output(line)
   end
 
-  return nil
+  return ""
 end
 
 function Runner:_getopts(stdout_handle, stderr_handle)

lua/nvim-tree/legacy.lua

@@ -14,16 +14,16 @@ local function refactored(opts)
   end
 
   -- 2022/06/20
-  utils.move_missing_val(opts, "update_focused_file", "update_cwd", opts, "update_focused_file", "update_root")
-  utils.move_missing_val(opts, "", "update_cwd", opts, "", "sync_root_with_cwd")
+  utils.move_missing_val(opts, "update_focused_file", "update_cwd", opts, "update_focused_file", "update_root", true)
+  utils.move_missing_val(opts, "", "update_cwd", opts, "", "sync_root_with_cwd", true)
 
   -- 2022/11/07
   utils.move_missing_val(opts, "", "open_on_tab", opts, "tab.sync", "open", false)
-  utils.move_missing_val(opts, "", "open_on_tab", opts, "tab.sync", "close")
-  utils.move_missing_val(opts, "", "ignore_buf_on_tab_change", opts, "tab.sync", "ignore")
+  utils.move_missing_val(opts, "", "open_on_tab", opts, "tab.sync", "close", true)
+  utils.move_missing_val(opts, "", "ignore_buf_on_tab_change", opts, "tab.sync", "ignore", true)
 
   -- 2022/11/22
-  utils.move_missing_val(opts, "renderer", "root_folder_modifier", opts, "renderer", "root_folder_label")
+  utils.move_missing_val(opts, "renderer", "root_folder_modifier", opts, "renderer", "root_folder_label", true)
 end
 
 local function removed(opts)

lua/nvim-tree/log.lua

@@ -14,9 +14,11 @@ function M.raw(typ, fmt, ...)
 
   local line = string.format(fmt, ...)
   local file = io.open(M.path, "a")
+  if file then
     io.output(file)
     io.write(line)
     io.close(file)
+  end
 end
 
 --- Write to log file via M.line
@@ -24,7 +26,7 @@ end
 --- @return number nanos to pass to profile_end
 function M.profile_start(fmt, ...)
   if not M.path or not M.config.types.profile and not M.config.types.all then
-    return
+    return 0
   end
   M.line("profile", "START " .. (fmt or "???"), ...)
   return vim.loop.hrtime()

lua/nvim-tree/utils.lua

@@ -197,12 +197,8 @@ end
 -- Create empty sub-tables if not present
 -- @param tbl to create empty inside of
 -- @param path dot separated string of sub-tables
--- @return deepest sub-table
+-- @return table deepest sub-table
 function M.table_create_missing(tbl, path)
-  if tbl == nil then
-    return nil
-  end
-
   local t = tbl
   for s in string.gmatch(path, "([^%.]+)%.*") do
     if t[s] == nil then
@@ -222,12 +218,8 @@ end
 --- @param dst table to copy to
 --- @param dst_path string dot separated string of sub-tables, created when missing
 --- @param dst_pos string value pos
---- @param remove boolean default true
+--- @param remove boolean
 function M.move_missing_val(src, src_path, src_pos, dst, dst_path, dst_pos, remove)
-  if remove == nil then
-    remove = true
-  end
-
   local ok, err = pcall(vim.validate, {
     src = { src, "table" },
     src_path = { src_path, "string" },
@@ -246,11 +238,10 @@ function M.move_missing_val(src, src_path, src_pos, dst, dst_path, dst_pos, remo
     if src[pos] and type(src[pos]) == "table" then
       src = src[pos]
     else
-      src = nil
-      break
+      return
     end
   end
-  local src_val = src and src[src_pos]
+  local src_val = src[src_pos]
   if src_val == nil then
     return
   end

lua/nvim-tree/view.lua

@@ -389,8 +389,8 @@ function M.restore_tab_state()
 end
 
 --- Returns the window number for nvim-tree within the tabpage specified
----@param tabpage number: (optional) the number of the chosen tabpage. Defaults to current tabpage.
----@return number
+---@param tabpage number|nil (optional) the number of the chosen tabpage. Defaults to current tabpage.
+---@return number|nil
 function M.get_winnr(tabpage)
   tabpage = tabpage or vim.api.nvim_get_current_tabpage()
   local tabinfo = M.View.tabpages[tabpage]
@@ -406,8 +406,8 @@ function M.get_bufnr()
 end
 
 --- Checks if nvim-tree is displaying the help ui within the tabpage specified
----@param tabpage number: (optional) the number of the chosen tabpage. Defaults to current tabpage.
----@return number
+---@param tabpage number|nil (optional) the number of the chosen tabpage. Defaults to current tabpage.
+---@return number|nil
 function M.is_help_ui(tabpage)
   tabpage = tabpage or vim.api.nvim_get_current_tabpage()
   local tabinfo = M.View.tabpages[tabpage]