refactor(#2826): explorer init logging

lua/nvim-tree/actions/root/change-dir.lua

@@ -85,7 +85,7 @@ M.force_dirchange = add_profiling_to(function(foldername, should_open_view)
     if should_change_dir() then
       cd(M.options.global, foldername)
     end
-    core.init(foldername)
+    core.init(foldername, "change-dir")
   end
 
   if should_open_view then

lua/nvim-tree/core.lua

@@ -9,9 +9,12 @@ local TreeExplorer = nil
 local first_init_done = false
 
 ---@param foldername string
-function M.init(foldername)
+---@param callsite string
+function M.init(foldername, callsite)
   local profile = log.profile_start("core init %s", foldername)
 
+  log.line("dev", "core.init(%s, %s)", foldername, callsite)
+
   if TreeExplorer then
     TreeExplorer:destroy()
   end

lua/nvim-tree/explorer/view.lua

@@ -31,7 +31,7 @@ local DEFAULT_PADDING = 1
 ---@field private width (fun():integer)|integer|string
 ---@field private max_width integer
 ---@field private padding integer
----@field private bufnr_by_tab table<integer, integer> for diagnostics during multi instance
+---@field private bufnr_by_tab table<integer, integer> stored per tab until multi-instance is complete
 local View = Class:extend()
 
 ---@class View
@@ -617,7 +617,6 @@ end
 ---@param callsite string
 ---@return integer? winid
 function View:winid(tabpage, callsite)
-  local winid = nil
   local bufnr = self.bufnr_by_tab[tabpage]
 
   local msg = string.format("View:winid(%3s, %-20.20s)", tabpage, callsite)
@@ -625,7 +624,7 @@ function View:winid(tabpage, callsite)
   if bufnr then
     for _, w in pairs(vim.api.nvim_tabpage_list_wins(tabpage or 0)) do
       if vim.api.nvim_win_get_buf(w) == bufnr then
-        log.line("dev", "%s b%d : w%s", msg, bufnr, winid)
+        log.line("dev", "%s b%d : w%s", msg, bufnr, w)
         return w
       end
     end

lua/nvim-tree/lib.lua

@@ -102,14 +102,14 @@ function M.open(opts)
   M.set_target_win()
   if not core.get_explorer() or opts.path then
     if opts.path then
-      core.init(opts.path)
+      core.init(opts.path, "lib.open - opts.path")
     else
       local cwd, err = vim.loop.cwd()
       if not cwd then
         notify.error(string.format("current working directory unavailable: %s", err))
         return
       end
-      core.init(cwd)
+      core.init(cwd, "lib.open - cwd")
     end
   end