feat(entry_maker): add 'filename_first' option for path_display (#3010)

* Initial commit

* Fixes issue with find_files where devicons where disabled

* Fixes issue with vimgrep where devicons where disabled

* Fixes trailing space for path with only a file name

* Adds test for reverse path_display

* Refactors reverse to filename_first

* Adds tests

* Fixes highlighting

* Fixes linting issues

* Uses trim function

* Fixes issue with highlighting

* Moves local function to utils

* Removes redundant code

* Adds highlighting for gen_from_buffer

* fix formatting

---------

Co-authored-by: alycklama <>
Co-authored-by: James Trew <j.trew10@gmail.com>

lua/tests/automated/utils_spec.lua

@@ -277,4 +277,24 @@ describe("transform_path", function()
   it("handles default 'truncate' path_display", function()
     assert_path({ "truncate" }, new_relpath "lua/telescope/init.lua", new_relpath "…scope/init.lua")
   end)
+
+  it("handles 'filename_first' path_display", function()
+    assert_path("filename_first", new_relpath "init.lua", new_relpath "init.lua")
+    assert_path("filename_first", new_relpath "lua/telescope/init.lua", new_relpath "init.lua lua/telescope")
+  end)
+
+  it("handles 'filename_first' path_display with the option to reverse directories", function()
+    assert_path({ filename_first = { reverse_directories = true } }, new_relpath "init.lua", new_relpath "init.lua")
+    assert_path(
+      { filename_first = { reverse_directories = true } },
+      new_relpath "lua/telescope/init.lua",
+      new_relpath "init.lua telescope/lua"
+    )
+    assert_path({ filename_first = { reverse_directories = false } }, new_relpath "init.lua", new_relpath "init.lua")
+    assert_path(
+      { filename_first = { reverse_directories = false } },
+      new_relpath "lua/telescope/init.lua",
+      new_relpath "init.lua lua/telescope"
+    )
+  end)
 end)