Cleanup previous PR

docs/changelog.rst

@@ -45,6 +45,8 @@ Detailed list of changes
 
 - Fix a bug that caused :opt:`macos_colorspace` to always be ``default`` regardless of its actual value (:iss:`5129`)
 
+- diff kitten: A new option :opt:`kitten-diff.ignore_name` to exclude files and directories from being scanned (:pull:`5171`)
+
 - ssh kitten: Fix bash not being executed as a login shell since kitty 0.25.0 (:iss:`5130`)
 
 - macOS: When pasting text and the clipboard has a filesystem path, paste the

kittens/diff/collect.py

@@ -7,9 +7,11 @@ from contextlib import suppress
 from fnmatch import fnmatch
 from functools import lru_cache
 from hashlib import md5
-from itertools import product
+from typing import (
+    TYPE_CHECKING, Dict, Iterator, List, Optional, Sequence, Set, Tuple, Union
+)
+
 from kitty.guess_mime_type import guess_type
-from typing import TYPE_CHECKING, Dict, List, Set, Optional, Iterator, Tuple, Union
 
 if TYPE_CHECKING:
     from .highlight import DiffHighlight  # noqa
@@ -39,7 +41,7 @@ class Segment:
 
 class Collection:
 
-    ignore_paths: Tuple[str, ...] = ()
+    ignore_names: Tuple[str, ...] = ()
 
     def __init__(self) -> None:
         self.changes: Dict[str, str] = {}
@@ -109,14 +111,19 @@ def resolve_remote_name(path: str, default: str) -> str:
     return default
 
 
-def walk(base: str, names: Set[str], pmap: Dict[str, str], ignore_paths: Tuple[str, ...]) -> None:
+def allowed_items(items: Sequence[str], ignore_patterns: Sequence[str]) -> Iterator[str]:
+    for name in items:
+        for pat in ignore_patterns:
+            if fnmatch(name, pat):
+                break
+        else:
+            yield name
+
+
+def walk(base: str, names: Set[str], pmap: Dict[str, str], ignore_names: Tuple[str, ...]) -> None:
     for dirpath, dirnames, filenames in os.walk(base):
-        ignored = [_dir for _dir, pat in product(dirnames, ignore_paths) if fnmatch(_dir, pat)]
-        for _dir in ignored:
-            dirnames.pop(dirnames.index(_dir))
-        for filename in filenames:
-            if any(fnmatch(filename, pat) for pat in ignore_paths if pat):
-                continue
+        dirnames[:] = allowed_items(dirnames, ignore_names)
+        for filename in allowed_items(filenames, ignore_names):
             path = os.path.abspath(os.path.join(dirpath, filename))
             path_name_map[path] = name = os.path.relpath(path, base)
             names.add(name)
@@ -129,8 +136,8 @@ def collect_files(collection: Collection, left: str, right: str) -> None:
     left_path_map: Dict[str, str] = {}
     right_path_map: Dict[str, str] = {}
 
-    walk(left, left_names, left_path_map, collection.ignore_paths)
-    walk(right, right_names, right_path_map, collection.ignore_paths)
+    walk(left, left_names, left_path_map, collection.ignore_names)
+    walk(right, right_names, right_path_map, collection.ignore_names)
 
     common_names = left_names & right_names
     changed_names = {n for n in common_names if data_for_path(left_path_map[n]) != data_for_path(right_path_map[n])}

kittens/diff/main.py

@@ -655,7 +655,7 @@ def main(args: List[str]) -> None:
     opts = init_config(cli_opts)
     set_diff_command(opts.diff_cmd)
     lines_for_path.replace_tab_by = opts.replace_tab_by
-    Collection.ignore_paths = opts.ignore_paths
+    Collection.ignore_names = tuple(opts.ignore_name)
     left, right = map(get_remote_file, (left, right))
     if os.path.isdir(left) != os.path.isdir(right):
         raise SystemExit('The items to be diffed should both be either directories or files. Comparing a directory to a file is not valid.')

kittens/diff/options/definition.py

@@ -48,10 +48,17 @@ opt('replace_tab_by', '\\x20\\x20\\x20\\x20',
     long_text='The string to replace tabs with. Default is to use four spaces.'
     )
 
-opt('ignore_paths', '',
-    option_type='pattern_list',
-    long_text='''List of patterns that are matched against directory and file
-names and ignored when directories are compared.
+opt('+ignore_name', '',
+    option_type='store_multiple',
+    add_to_default=False,
+    long_text='''
+A glob pattern that is matched against only the filename of files and directories. Matching
+files and directories are ignored when scanning the filesystem to look for files to diff.
+Can be specified multiple times to use multiple patterns. For example::
+
+   ignore_name .git
+   ignore_name *~
+   ignore_name *.pyc
 ''',
     )
 

kittens/diff/options/parse.py

@@ -1,7 +1,7 @@
 # generated by gen-config.py DO NOT edit
 
 import typing
-from kittens.diff.options.utils import parse_map, pattern_list, syntax_aliases
+from kittens.diff.options.utils import parse_map, store_multiple, syntax_aliases
 from kitty.conf.utils import merge_dicts, positive_int, python_string, to_color, to_color_or_none
 
 
@@ -37,6 +37,10 @@ class Parser:
     def hunk_margin_bg(self, val: str, ans: typing.Dict[str, typing.Any]) -> None:
         ans['hunk_margin_bg'] = to_color(val)
 
+    def ignore_name(self, val: str, ans: typing.Dict[str, typing.Any]) -> None:
+        for k, v in store_multiple(val, ans["ignore_name"]):
+            ans["ignore_name"][k] = v
+
     def margin_bg(self, val: str, ans: typing.Dict[str, typing.Any]) -> None:
         ans['margin_bg'] = to_color(val)
 
@@ -86,12 +90,10 @@ class Parser:
         for k in parse_map(val):
             ans['map'].append(k)
 
-    def ignore_paths(self, val: str, ans: typing.Dict[str, typing.Any]):
-        ans['ignore_paths'] = pattern_list(val)
-
 
 def create_result_dict() -> typing.Dict[str, typing.Any]:
     return {
+        'ignore_name': {},
         'map': [],
     }
 

kittens/diff/options/types.py

@@ -20,7 +20,7 @@ option_names = (  # {{{
  'highlight_removed_bg',
  'hunk_bg',
  'hunk_margin_bg',
- 'ignore_paths',
+ 'ignore_name',
  'map',
  'margin_bg',
  'margin_fg',
@@ -50,7 +50,6 @@ class Options:
     highlight_removed_bg: Color = Color(253, 184, 192)
     hunk_bg: Color = Color(241, 248, 255)
     hunk_margin_bg: Color = Color(219, 237, 255)
-    ignore_paths: typing.Tuple[str, ...] = ()
     margin_bg: Color = Color(250, 251, 252)
     margin_fg: Color = Color(170, 170, 170)
     margin_filler_bg: typing.Optional[kitty.fast_data_types.Color] = None
@@ -66,6 +65,7 @@ class Options:
     syntax_aliases: typing.Dict[str, str] = {'pyj': 'py', 'pyi': 'py', 'recipe': 'py'}
     title_bg: Color = Color(255, 255, 255)
     title_fg: Color = Color(0, 0, 0)
+    ignore_name: typing.Dict[str, str] = {}
     map: typing.List[typing.Tuple[kitty.types.ParsedShortcut, kitty.conf.utils.KeyAction]] = []
     key_definitions: KittensKeyMap = {}
     config_paths: typing.Tuple[str, ...] = ()
@@ -118,6 +118,7 @@ class Options:
 
 
 defaults = Options()
+defaults.ignore_name = {}
 defaults.map = [
     # quit
     (ParsedShortcut(mods=0, key_name='q'), KeyAction('quit')),  # noqa

kittens/diff/options/utils.py

@@ -3,8 +3,7 @@
 # License: GPLv3 Copyright: 2021, Kovid Goyal <kovid at kovidgoyal.net>
 
 
-import shlex
-from typing import Any, Dict, Iterable, List, Tuple, Union
+from typing import Any, Container, Dict, Iterable, Tuple, Union
 
 from kitty.conf.utils import (
     KeyFuncWrapper, KittensKeyDefinition, parse_kittens_key
@@ -59,8 +58,10 @@ def syntax_aliases(raw: str) -> Dict[str, str]:
     return ans
 
 
-def pattern_list(raw: str) -> Tuple[str, ...]:
-    return tuple(shlex.split(raw, comments=True))
+def store_multiple(val: str, current_val: Container[str]) -> Iterable[Tuple[str, str]]:
+    val = val.strip()
+    if val not in current_val:
+        yield val, val
 
 
 def parse_map(val: str) -> Iterable[KittensKeyDefinition]: