From c86df75ab11643fa4649cfe6ed5c4692d4ee342b Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 15 Apr 2024 20:05:20 +0200
Subject: Adding upstream version 3.6.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 pre_commit/meta_hooks/check_useless_excludes.py | 83 +++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 pre_commit/meta_hooks/check_useless_excludes.py

(limited to 'pre_commit/meta_hooks/check_useless_excludes.py')

diff --git a/pre_commit/meta_hooks/check_useless_excludes.py b/pre_commit/meta_hooks/check_useless_excludes.py
new file mode 100644
index 0000000..664251a
--- /dev/null
+++ b/pre_commit/meta_hooks/check_useless_excludes.py
@@ -0,0 +1,83 @@
+from __future__ import annotations
+
+import argparse
+import re
+from collections.abc import Iterable
+from collections.abc import Sequence
+
+from cfgv import apply_defaults
+
+import pre_commit.constants as C
+from pre_commit import git
+from pre_commit.clientlib import load_config
+from pre_commit.clientlib import MANIFEST_HOOK_DICT
+from pre_commit.commands.run import Classifier
+
+
+def exclude_matches_any(
+        filenames: Iterable[str],
+        include: str,
+        exclude: str,
+) -> bool:
+    if exclude == '^$':
+        return True
+    include_re, exclude_re = re.compile(include), re.compile(exclude)
+    for filename in filenames:
+        if include_re.search(filename) and exclude_re.search(filename):
+            return True
+    return False
+
+
+def check_useless_excludes(config_file: str) -> int:
+    config = load_config(config_file)
+    filenames = git.get_all_files()
+    classifier = Classifier.from_config(
+        filenames, config['files'], config['exclude'],
+    )
+    retv = 0
+
+    exclude = config['exclude']
+    if not exclude_matches_any(filenames, '', exclude):
+        print(
+            f'The global exclude pattern {exclude!r} does not match any files',
+        )
+        retv = 1
+
+    for repo in config['repos']:
+        for hook in repo['hooks']:
+            # the default of manifest hooks is `types: [file]` but we may
+            # be configuring a symlink hook while there's a broken symlink
+            hook.setdefault('types', [])
+            # Not actually a manifest dict, but this more accurately reflects
+            # the defaults applied during runtime
+            hook = apply_defaults(hook, MANIFEST_HOOK_DICT)
+            names = classifier.by_types(
+                classifier.filenames,
+                hook['types'],
+                hook['types_or'],
+                hook['exclude_types'],
+            )
+            include, exclude = hook['files'], hook['exclude']
+            if not exclude_matches_any(names, include, exclude):
+                print(
+                    f'The exclude pattern {exclude!r} for {hook["id"]} does '
+                    f'not match any files',
+                )
+                retv = 1
+
+    return retv
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument('filenames', nargs='*', default=[C.CONFIG_FILE])
+    args = parser.parse_args(argv)
+
+    retv = 0
+    for filename in args.filenames:
+        retv |= check_useless_excludes(filename)
+    return retv
+
+
+if __name__ == '__main__':
+    raise SystemExit(main())
-- 
cgit v1.2.3