Fix dirmonitor sorting issues (#1599)

* Use `PATHSEP` in path-related functions

* Don't stop on digits when getting the common part in `system.path_compare`

* Avoid sorting multiple times in `dirwatch.get_directory_files`

This also fixes the timeout detection in `recurse_pred`.

data/core/common.lua

@@ -226,7 +226,7 @@ function common.path_suggest(text, root)
   if root and root:sub(-1) ~= PATHSEP then
     root = root .. PATHSEP
   end
-  local path, name = text:match("^(.-)([^/\\]*)$")
+  local path, name = text:match("^(.-)([^"..PATHSEP.."]*)$")
   local clean_dotslash = false
   -- ignore root if path is absolute
   local is_absolute = common.is_absolute_path(text)
@@ -279,7 +279,7 @@ end
 ---@param text string The input path.
 ---@return string[]
 function common.dir_path_suggest(text)
-  local path, name = text:match("^(.-)([^/\\]*)$")
+  local path, name = text:match("^(.-)([^"..PATHSEP.."]*)$")
   local files = system.list_dir(path == "" and "." or path) or {}
   local res = {}
   for _, file in ipairs(files) do
@@ -298,7 +298,7 @@ end
 ---@param dir_list string[] A list of paths to filter.
 ---@return string[]
 function common.dir_list_suggest(text, dir_list)
-  local path, name = text:match("^(.-)([^/\\]*)$")
+  local path, name = text:match("^(.-)([^"..PATHSEP.."]*)$")
   local res = {}
   for _, dir_path in ipairs(dir_list) do
     if dir_path:lower():find(text:lower(), nil, true) == 1 then
@@ -461,7 +461,7 @@ end
 function common.basename(path)
   -- a path should never end by / or \ except if it is '/' (unix root) or
   -- 'X:\' (windows drive)
-  return path:match("[^\\/]+$") or path
+  return path:match("[^"..PATHSEP.."]+$") or path
 end
 
 
@@ -470,7 +470,7 @@ end
 ---@param path string
 ---@return string|nil
 function common.dirname(path)
-  return path:match("(.+)[\\/][^\\/]+$")
+  return path:match("(.+)["..PATHSEP.."][^"..PATHSEP.."]+$")
 end
 
 
@@ -513,10 +513,10 @@ end
 
 local function split_on_slash(s, sep_pattern)
   local t = {}
-  if s:match("^[/\\]") then
+  if s:match("^["..PATHSEP.."]") then
     t[#t + 1] = ""
   end
-  for fragment in string.gmatch(s, "([^/\\]+)") do
+  for fragment in string.gmatch(s, "([^"..PATHSEP.."]+)") do
     t[#t + 1] = fragment
   end
   return t
@@ -649,7 +649,7 @@ function common.mkdirp(path)
   while path and path ~= "" do
     local success_mkdir = system.mkdir(path)
     if success_mkdir then break end
-    local updir, basedir = path:match("(.*)[/\\](.+)$")
+    local updir, basedir = path:match("(.*)["..PATHSEP.."](.+)$")
     table.insert(subdirs, 1, basedir or path)
     path = updir
   end

data/core/dirwatch.lua

@@ -190,49 +190,47 @@ end
 -- "root" will by an absolute path without trailing '/'
 -- "path" will be a path starting without '/' and without trailing '/'
 --    or the empty string.
---    It will identifies a sub-path within "root.
+--    It identifies a sub-path within "root".
 -- The current path location will therefore always be: root .. path.
--- When recursing "root" will always be the same, only "path" will change.
+-- When recursing, "root" will always be the same, only "path" will change.
 -- Returns a list of file "items". In each item the "filename" will be the
 -- complete file path relative to "root" *without* the trailing '/', and without the starting '/'.
-function dirwatch.get_directory_files(dir, root, path, t, entries_count, recurse_pred)
+function dirwatch.get_directory_files(dir, root, path, entries_count, recurse_pred)
+  local t = {}
   local t0 = system.get_time()
-  local t_elapsed = system.get_time() - t0
-  local dirs, files = {}, {}
   local ignore_compiled = compile_ignore_files()
 
-
   local all = system.list_dir(root .. PATHSEP .. path)
   if not all then return nil end
-
-  for _, file in ipairs(all or {}) do
+  local entries = { }
+  for _, file in ipairs(all) do
     local info = get_project_file_info(root, (path ~= "" and (path .. PATHSEP) or "") .. file, ignore_compiled)
     if info then
-      table.insert(info.type == "dir" and dirs or files, info)
-      entries_count = entries_count + 1
+      table.insert(entries, info)
     end
   end
+  table.sort(entries, compare_file)
 
   local recurse_complete = true
-  table.sort(dirs, compare_file)
-  for _, f in ipairs(dirs) do
-    table.insert(t, f)
-    if recurse_pred(dir, f.filename, entries_count, t_elapsed) then
-      local _, complete, n = dirwatch.get_directory_files(dir, root, f.filename, t, entries_count, recurse_pred)
-      recurse_complete = recurse_complete and complete
-      if n ~= nil then
-        entries_count = n
+  for _, info in ipairs(entries) do
+    table.insert(t, info)
+    entries_count = entries_count + 1
+    if info.type == "dir" then
+      if recurse_pred(dir, info.filename, entries_count, system.get_time() - t0) then
+        local t_rec, complete, n = dirwatch.get_directory_files(dir, root, info.filename, entries_count, recurse_pred)
+        recurse_complete = recurse_complete and complete
+        if n ~= nil then
+          entries_count = n
+          for _, info_rec in ipairs(t_rec) do
+            table.insert(t, info_rec)
+          end
+        end
+      else
+        recurse_complete = false
       end
-    else
-      recurse_complete = false
     end
   end
 
-  table.sort(files, compare_file)
-  for _, f in ipairs(files) do
-    table.insert(t, f)
-  end
-
   return t, recurse_complete, entries_count
 end
 

data/core/init.lua

@@ -102,7 +102,7 @@ local function strip_leading_path(filename)
 end
 
 local function strip_trailing_slash(filename)
-  if filename:match("[^:][/\\]$") then
+  if filename:match("[^:]["..PATHSEP.."]$") then
     return filename:sub(1, -2)
   end
   return filename
@@ -120,9 +120,7 @@ local function show_max_files_warning(dir)
     "Too many files in project directory: stopped reading at "..
     config.max_project_files.." files. For more information see "..
     "usage.md at https://github.com/lite-xl/lite-xl."
-  if core.status_view then
-    core.status_view:show_message("!", style.accent, message)
-  end
+  core.warn(message)
 end
 
 
@@ -184,7 +182,7 @@ local function refresh_directory(topdir, target)
     directory_start_idx = directory_start_idx + 1
   end
 
-  local files = dirwatch.get_directory_files(topdir, topdir.name, (target or ""), {}, 0, function() return false end)
+  local files = dirwatch.get_directory_files(topdir, topdir.name, (target or ""), 0, function() return false end)
   local change = false
 
   -- If this file doesn't exist, we should be calling this on our parent directory, assume we'll do that.
@@ -265,7 +263,7 @@ function core.add_project_directory(path)
 
   local fstype = PLATFORM == "Linux" and system.get_fs_type(topdir.name) or "unknown"
   topdir.force_scans = (fstype == "nfs" or fstype == "fuse")
-  local t, complete, entries_count = dirwatch.get_directory_files(topdir, topdir.name, "", {}, 0, timed_max_files_pred)
+  local t, complete, entries_count = dirwatch.get_directory_files(topdir, topdir.name, "", 0, timed_max_files_pred)
   topdir.files = t
   if not complete then
     topdir.slow_filesystem = not complete and (entries_count <= config.max_project_files)