refactor(#2988): multi instance dir_up (#3222)

* chore: moving root action dir-up to explorer class

* chore(explorer): moving requires to top level

---------

Co-authored-by: Alexander Courtis <alex@courtis.org>

Author: Uanela

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

@@ -1,7 +1,6 @@
 local M = {}
 
 M.change_dir = require("nvim-tree.actions.root.change-dir")
-M.dir_up = require("nvim-tree.actions.root.dir-up")
 
 function M.setup(opts)
   M.change_dir.setup(opts)

lua/nvim-tree/actions/root/init.lua

@@ -168,7 +168,7 @@ Api.tree.change_root_to_node = wrap_node(function(node)
   end
 end)
 
-Api.tree.change_root_to_parent = wrap_node(actions.root.dir_up.fn)
+Api.tree.change_root_to_parent = wrap_node(wrap_explorer("dir_up"))
 Api.tree.get_node_under_cursor = wrap_explorer("get_node_at_cursor")
 Api.tree.get_nodes = wrap_explorer("get_nodes")
 

lua/nvim-tree/api.lua

@@ -22,6 +22,8 @@ local Clipboard = require("nvim-tree.actions.fs.clipboard")
 local Renderer = require("nvim-tree.renderer")
 
 local FILTER_REASON = require("nvim-tree.enum").FILTER_REASON
+local change_dir = require("nvim-tree.actions.root.change-dir")
+local find_file = require("nvim-tree.actions.finders.find-file")
 
 local config
 
@@ -659,6 +661,22 @@ function Explorer:get_nodes_by_line(line_start)
   return nodes_by_line
 end
 
+---@param node Node
+function Explorer:dir_up(node)
+  if not node or node.name == ".." then
+    change_dir.fn("..")
+  else
+    local cwd = core.get_cwd()
+    if cwd == nil then
+      return
+    end
+
+    local newdir = vim.fn.fnamemodify(utils.path_remove_trailing(cwd), ":h")
+    change_dir.fn(newdir)
+    find_file.fn(node.absolute_path)
+  end
+end
+
 ---Api.tree.get_nodes
 ---@return nvim_tree.api.Node
 function Explorer:get_nodes()