Fixes file types from .pre-commit-config.yaml issue

pre_commit/commands/run.py

@@ -48,12 +48,17 @@ def _filter_by_include_exclude(filenames, include, exclude):
     }
 
 
-def _filter_by_types(filenames, types, exclude_types):
+def _filter_by_types(filenames,
+                     types,
+                     exclude_types,
+                     get_tags=tags_from_path):
     types, exclude_types = frozenset(types), frozenset(exclude_types)
+    valid_types = types - exclude_types
+
     ret = []
     for filename in filenames:
-        tags = tags_from_path(filename)
-        if tags >= types and not tags & exclude_types:
+        tags = frozenset(get_tags(filename))
+        if len(valid_types.intersection(tags)) > 0:
             ret.append(filename)
     return tuple(ret)
 

tests/commands/run_test.py

@@ -9,12 +9,14 @@
 
 import pytest
 
+from identify.identify import tags_from_interpreter
 import pre_commit.constants as C
 from pre_commit.commands.install_uninstall import install
 from pre_commit.commands.run import _compute_cols
 from pre_commit.commands.run import _filter_by_include_exclude
 from pre_commit.commands.run import _get_skips
 from pre_commit.commands.run import _has_unmerged_paths
+from pre_commit.commands.run import _filter_by_types
 from pre_commit.commands.run import run
 from pre_commit.runner import Runner
 from pre_commit.util import cmd_output
@@ -831,3 +833,17 @@ def test_include_exclude_does_search_instead_of_match(some_filenames):
 def test_include_exclude_exclude_removes_files(some_filenames):
     ret = _filter_by_include_exclude(some_filenames, '', r'\.py$')
     assert ret == {'.pre-commit-hooks.yaml'}
+
+
+def get_tags_stub(interpreter):
+    return lambda x: tags_from_interpreter(interpreter)
+
+
+def test_filter_by_types_for_bash_by_interpreter():
+    ret = _filter_by_types(['bash_script'], ['shell', 'sh', 'bash'], [], get_tags=get_tags_stub('bash'))
+    assert ret == ('bash_script',)
+
+
+def test_filter_by_types_for_python_by_interpreter():
+    ret = _filter_by_types(['script.py'], ['python'], [], get_tags=get_tags_stub('python'))
+    assert ret == ('script.py',)