path display options as enum.

lua/telescope/config.lua

@@ -1,3 +1,5 @@
+local types = require('telescope.types')
+
 -- Keep the values around between reloads
 _TelescopeConfigurationValues = _TelescopeConfigurationValues or {}
 
@@ -113,9 +115,9 @@ function config.set_defaults(defaults)
   set("border", {})
   set("borderchars", { '─', '│', '─', '│', '╭', '╮', '╯', '╰'})
 
-  set("hide_filename", false)
-  set("shorten_path", false)
-  set("tail_path", false)
+  set(types.path_display_options.HIDE_PATH, false)
+  set(types.path_display_options.SHORTEN_PATH, false)
+  set(types.path_display_options.TAIL_PATH, false)
 
   set("get_status_text", function(self)
     local xx = (self.stats.processed or 0) - (self.stats.filtered or 0)

lua/telescope/types.lua

@@ -0,0 +1,23 @@
+local types = {}
+
+-- convert numbered index table into an enum
+--
+-- example:
+-- enum { "foo", "bar" }
+-- returns:
+-- { foo = 1, bar = 2 }
+local enum = function(table)
+  for i = 1, #table do
+    table[table[i]] = i
+    table[i] = nil
+  end
+  return table
+end
+
+types.path_display_options = enum {
+  "HIDE_PATH",
+  "SHORTEN_PATH",
+  "TAIL_PATH"
+}
+
+return types

lua/telescope/utils.lua

@@ -2,6 +2,7 @@ local has_devicons, devicons = pcall(require, 'nvim-web-devicons')
 
 local pathlib = require('telescope.path')
 local Job     = require('plenary.job')
+local types   = require('telescope.types')
 
 local utils = {}
 
@@ -149,20 +150,21 @@ end)()
 
 utils.transform_filepath = function(opts, path)
   local config = require('telescope.config').values
+  local types = types.path_display_options
 
-  if path == nil or utils.get_default(opts.hide_filename, config.hide_filename) then
+  if path == nil or utils.get_default(opts[types.HIDE_PATH], config[types.HIDE_PATH]) then
     return ''
   end
 
   local transformed_path = path
 
-  if utils.get_default(opts.tail_path, config.tail_path) then
+  if utils.get_default(opts[types.TAIL_PATH], config[types.TAIL_PATH]) then
     transformed_path = utils.path_tail(transformed_path)
   else
     local cwd = vim.fn.expand(opts.cwd or vim.fn.getcwd())
     transformed_path = pathlib.make_relative(transformed_path, cwd)
 
-    if utils.get_default(opts.shorten_path, config.shorten_path) then
+    if utils.get_default(opts[types.SHORTEN_PATH], config[types.SHORTEN_PATH]) then
       transformed_path = pathlib.shorten(transformed_path)
     end
   end