fix(nvim-tree#2794): sshfs compatibility (nvim-tree#2893)

* add type fallback for nil types

* add PR suggestions

* Update lua/nvim-tree/explorer/explore.lua

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

* use type from fs_stat for sshfs compatibility

---------

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

Author: mxple

lua/nvim-tree/actions/fs/remove-file.lua

@@ -56,13 +56,18 @@ local function remove_dir(cwd)
   end
 
   while true do
-    local name, t = vim.loop.fs_scandir_next(handle)
+    local name, _ = vim.loop.fs_scandir_next(handle)
     if not name then
       break
     end
 
     local new_cwd = utils.path_join { cwd, name }
-    if t == "directory" then
+
+    -- Type must come from fs_stat and not fs_scandir_next to maintain sshfs compatibility
+    local stat = vim.loop.fs_stat(new_cwd)
+    local type = stat and stat.type or nil
+
+    if type == "directory" then
       local success = remove_dir(new_cwd)
       if not success then
         return false

lua/nvim-tree/explorer/explore.lua

@@ -29,7 +29,7 @@ local function populate_children(handle, cwd, node, git_status, parent)
   })
 
   while true do
-    local name, t = vim.loop.fs_scandir_next(handle)
+    local name, _ = vim.loop.fs_scandir_next(handle)
     if not name then
       break
     end
@@ -41,14 +41,18 @@ local function populate_children(handle, cwd, node, git_status, parent)
 
       ---@type uv.fs_stat.result|nil
       local stat = vim.loop.fs_stat(abs)
+
+      -- Type must come from fs_stat and not fs_scandir_next to maintain sshfs compatibility
+      local type = stat and stat.type or nil
+
       local filter_reason = parent.filters:should_filter_as_reason(abs, stat, filter_status)
       if filter_reason == FILTER_REASON.none and not nodes_by_path[abs] then
         local child = nil
-        if t == "directory" and vim.loop.fs_access(abs, "R") then
+        if type == "directory" and vim.loop.fs_access(abs, "R") then
           child = builders.folder(node, abs, name, stat)
-        elseif t == "file" then
+        elseif type == "file" then
           child = builders.file(node, abs, name, stat)
-        elseif t == "link" then
+        elseif type == "link" then
           local link = builders.link(node, abs, name, stat)
           if link.link_to ~= nil then
             child = link

lua/nvim-tree/explorer/init.lua

@@ -119,7 +119,7 @@ function Explorer:reload(node, git_status)
   })
 
   while true do
-    local name, t = vim.loop.fs_scandir_next(handle)
+    local name, _ = vim.loop.fs_scandir_next(handle)
     if not name then
       break
     end
@@ -132,11 +132,14 @@ function Explorer:reload(node, git_status)
     if filter_reason == FILTER_REASON.none then
       remain_childs[abs] = true
 
+      -- Type must come from fs_stat and not fs_scandir_next to maintain sshfs compatibility
+      local type = stat and stat.type or nil
+
       -- Recreate node if type changes.
       if nodes_by_path[abs] then
         local n = nodes_by_path[abs]
 
-        if n.type ~= t then
+        if n.type ~= type then
           utils.array_remove(node.nodes, n)
           explorer_node.node_destroy(n)
           nodes_by_path[abs] = nil
@@ -145,11 +148,11 @@ function Explorer:reload(node, git_status)
 
       if not nodes_by_path[abs] then
         local new_child = nil
-        if t == "directory" and vim.loop.fs_access(abs, "R") and Watcher.is_fs_event_capable(abs) then
+        if type == "directory" and vim.loop.fs_access(abs, "R") and Watcher.is_fs_event_capable(abs) then
           new_child = builders.folder(node, abs, name, stat)
-        elseif t == "file" then
+        elseif type == "file" then
           new_child = builders.file(node, abs, name, stat)
-        elseif t == "link" then
+        elseif type == "link" then
           local link = builders.link(node, abs, name, stat)
           if link.link_to ~= nil then
             new_child = link