fix(make_entry): ordinal & display for higher depth search

lua/telescope/_extensions/file_browser/actions.lua

@@ -93,7 +93,7 @@ end
 local function newly_created_root(path, cwd)
   local idx
   local parents = path:parents()
-  cwd = fb_utils.trim_right_os_sep(cwd)
+  cwd = fb_utils.sanitize_path_str(cwd)
   for i, p in ipairs(parents) do
     if p == cwd then
       idx = i

lua/telescope/_extensions/file_browser/make_entry.lua

@@ -1,15 +1,15 @@
-local fb_utils = require "telescope._extensions.file_browser.utils"
+local Path = require "plenary.path"
+local action_state = require "telescope.actions.state"
+local entry_display = require "telescope.pickers.entry_display"
 local fb_git = require "telescope._extensions.file_browser.git"
+local fb_utils = require "telescope._extensions.file_browser.utils"
+local fb_make_entry_utils = require "telescope._extensions.file_browser.make_entry_utils"
 local fs_stat = require "telescope._extensions.file_browser.fs_stat"
-local utils = require "telescope.utils"
 local log = require "telescope.log"
-local entry_display = require "telescope.pickers.entry_display"
-local action_state = require "telescope.actions.state"
+local os_sep = Path.path.sep
 local state = require "telescope.state"
 local strings = require "plenary.strings"
-local Path = require "plenary.path"
-local os_sep = Path.path.sep
-local os_sep_len = #os_sep
+local utils = require "telescope.utils"
 
 local sep = " "
 
@@ -114,9 +114,9 @@ local make_entry = function(opts)
   })
 
   -- needed since Path:make_relative does not resolve parent dirs
-  local parent_dir = Path:new(opts.cwd):parent():absolute()
+  local parent_dir = fb_utils.sanitize_path_str(Path:new(opts.cwd):parent():absolute())
   local mt = {}
-  mt.cwd = opts.cwd
+  mt.cwd = fb_utils.sanitize_path_str(opts.cwd)
 
   -- TODO(fdschmidt93): handle VimResized with due to variable width
   mt.display = function(entry)
@@ -125,7 +125,7 @@ local make_entry = function(opts)
     local display_array = {}
     local icon, icon_hl
 
-    local tail = fb_utils.trim_right_os_sep(entry.ordinal)
+    local tail = fb_utils.sanitize_path_str(entry.ordinal)
     local path_display = utils.transform_path(opts, tail)
 
     if entry.is_dir then
@@ -235,14 +235,13 @@ local make_entry = function(opts)
   end
 
   return function(absolute_path)
-    absolute_path = fb_utils.trim_right_os_sep(absolute_path)
+    absolute_path = fb_utils.sanitize_path_str(absolute_path)
     local path = Path:new(absolute_path)
     local is_dir = path:is_dir()
 
     local e = setmetatable({
       absolute_path,
-      ordinal = (absolute_path == opts.cwd and ".")
-        or (absolute_path == parent_dir and ".." or vim.fs.basename(absolute_path)),
+      ordinal = fb_make_entry_utils.get_ordinal_path(absolute_path, opts.cwd, parent_dir),
       Path = path,
       path = absolute_path,
       is_dir = is_dir,

lua/telescope/_extensions/file_browser/make_entry_utils.lua

@@ -0,0 +1,30 @@
+local Path = require "plenary.path"
+local fb_utils = require "telescope._extensions.file_browser.utils"
+
+local os_sep = Path.path.sep
+local os_sep_len = #os_sep
+
+local M = {}
+
+--- compute ordinal path
+--- accounts for `auto_depth` option
+---@param path string
+---@param cwd string
+---@param parent string
+---@return string
+M.get_ordinal_path = function(path, cwd, parent)
+  path = fb_utils.sanitize_path_str(path)
+  if path == cwd then
+    return "."
+  elseif path == parent then
+    return ".."
+  end
+
+  local cwd_substr = #cwd + 1
+  print(cwd_substr)
+  cwd_substr = cwd:sub(-1, -1) ~= os_sep and cwd_substr + os_sep_len or cwd_substr
+
+  return path:sub(cwd_substr, -1)
+end
+
+return M

lua/telescope/_extensions/file_browser/utils.lua

@@ -10,6 +10,8 @@ local truncate = require("plenary.strings").truncate
 
 local fb_utils = {}
 
+local iswin = vim.loop.os_uname().sysname == "Windows_NT"
+
 fb_utils.is_dir = function(path)
   if Path.is_path(path) then
     return path:is_dir()
@@ -181,17 +183,28 @@ fb_utils.notify = function(funname, opts)
   end
 end
 
--- trim the right most os separator from a path string
-fb_utils.trim_right_os_sep = function(path)
-  return path:sub(-1, -1) ~= os_sep and path or path:sub(1, -1 - #os_sep)
+--- de-dupe os_sep and right trim os_sep nearly everywhere
+--- exception for root dir path (`/` or `C:\`)
+---@param path string
+---@return string
+fb_utils.sanitize_path_str = function(path)
+  path = path:gsub(os_sep .. os_sep, os_sep)
+  if iswin then
+    if path:match "^%w:\\$" then
+      return path
+    else
+      return (path:gsub("(.)\\$", "%1"))
+    end
+  end
+  return (path:gsub("(.)/$", "%1"))
 end
 
 local _get_selection_index = function(path, dir, results)
   local path_dir = Path:new(path):parent():absolute()
-  path = fb_utils.trim_right_os_sep(path)
+  path = fb_utils.sanitize_path_str(path)
   if dir == path_dir then
     for i, path_entry in ipairs(results) do
-      if fb_utils.trim_right_os_sep(path_entry.value) == path then
+      if fb_utils.sanitize_path_str(path_entry.value) == path then
         return i
       end
     end

lua/tests/make_entry_spec.lua

@@ -0,0 +1,24 @@
+local me_utils = require "telescope._extensions.file_browser.make_entry_utils"
+
+describe("get_ordinal_path", function()
+  it("shows '.' for cwd", function()
+    assert.are.same(".", me_utils.get_ordinal_path("/home/a/b/c", "/home/a/b/c", "/home/a/b"))
+    assert.are.same(".", me_utils.get_ordinal_path("/home/a/b/c", "/home/a/b/c", "/home/a/b"))
+  end)
+
+  it("shows '..' for parent path", function()
+    assert.are.same("..", me_utils.get_ordinal_path("/home/a/b", "/home/a/b/c", "/home/a/b"))
+  end)
+
+  it("shows basename for cwd file", function()
+    assert.are.same("file.txt", me_utils.get_ordinal_path("/home/a/b/c/file.txt", "/home/a/b/c", "/home/a/b"))
+  end)
+
+  it("handles depths greater than 1", function()
+    assert.are.same("d/file.txt", me_utils.get_ordinal_path("/home/a/b/c/d/file.txt", "/home/a/b/c", "/home/a/b"))
+  end)
+
+  it("handles duplicate os_sep", function()
+    assert.are.same("file.txt", me_utils.get_ordinal_path("/home/a/b/c//file.txt", "/home/a/b/c", "/home/a/b"))
+  end)
+end)