fix: support root-level matching for '**/' globs

- generate an additional regex to match root-level files alongside '**/' patterns.
- ensure files in the repo root are correctly excluded from analysis.

pr_agent/algo/file_filter.py

@@ -17,14 +17,14 @@ def filter_ignored(files, platform = 'github'):
         glob_setting = get_settings().ignore.glob
         if isinstance(glob_setting, str):  # --ignore.glob=[.*utils.py], --ignore.glob=.*utils.py
             glob_setting = glob_setting.strip('[]').split(",")
-        patterns += [fnmatch.translate(glob) for glob in glob_setting]
+        patterns += translate_globs_to_regexes(glob_setting)
 
         code_generators = get_settings().config.get('ignore_language_framework', [])
         for cg in code_generators:
             glob_patterns = get_settings().generated_code.get(cg, [])
             if isinstance(glob_patterns, str):
                 glob_patterns = [glob_patterns]
-            patterns += [fnmatch.translate(glob) for glob in glob_patterns]
+            patterns += translate_globs_to_regexes(glob_patterns)
 
         # compile all valid patterns
         compiled_patterns = []
@@ -73,3 +73,11 @@ def filter_ignored(files, platform = 'github'):
         print(f"Could not filter file list: {e}")
 
     return files
+
+def translate_globs_to_regexes(globs: list):
+    regexes = []
+    for pattern in globs:
+        regexes.append(fnmatch.translate(pattern))
+        if pattern.startswith("**/"): # cover root-level files
+            regexes.append(fnmatch.translate(pattern[3:]))
+    return regexes

tests/unittest/test_file_filter.py

@@ -92,7 +92,8 @@ class TestIgnoreFilter:
             type('', (object,), {'filename': 'dir1/service.pb.go'})(),
             type('', (object,), {'filename': 'dir1/dir/data_pb2.py'})(),
             type('', (object,), {'filename': 'file.py'})(),
-            type('', (object,), {'filename': 'dir2/file_gen.go'})()
+            type('', (object,), {'filename': 'dir2/file_gen.go'})(),
+            type('', (object,), {'filename': 'file.generated.go'})()
         ]
         expected = [
             files[0],