1 files changed, 49 insertions, 0 deletions
diff --git a/tools/hacking.py b/tools/hacking.py
index ea490f748..edb06525e 100755
--- a/tools/hacking.py
+++ b/tools/hacking.py
@@ -21,6 +21,7 @@
 built on top of pep8.py
 """
 
+import fnmatch
 import inspect
 import logging
 import os
@@ -49,6 +50,52 @@ DOCSTRING_TRIPLE = ['"""', "'''"]
 VERBOSE_MISSING_IMPORT = False
 
 
+# Monkey patch broken excluded filter in pep8
+def filename_match(filename, patterns, default=True):
+    """
+    Check if patterns contains a pattern that matches filename.
+    If patterns is unspecified, this always returns True.
+    """
+    if not patterns:
+        return default
+    return any(fnmatch.fnmatch(filename, pattern) for pattern in patterns)
+
+
+def excluded(filename):
+    """
+    Check if options.exclude contains a pattern that matches filename.
+    """
+    basename = os.path.basename(filename)
+    return any((filename_match(filename, pep8.options.exclude,
+                               default=False),
+                filename_match(basename, pep8.options.exclude,
+                               default=False)))
+
+
+def input_dir(dirname, runner=None):
+    """
+    Check all Python source files in this directory and all subdirectories.
+    """
+    dirname = dirname.rstrip('/')
+    if excluded(dirname):
+        return
+    if runner is None:
+        runner = pep8.input_file
+    for root, dirs, files in os.walk(dirname):
+        if pep8.options.verbose:
+            print('directory ' + root)
+        pep8.options.counters['directories'] += 1
+        dirs.sort()
+        for subdir in dirs[:]:
+            if excluded(os.path.join(root, subdir)):
+                dirs.remove(subdir)
+        files.sort()
+        for filename in files:
+            if pep8.filename_match(filename) and not excluded(filename):
+                pep8.options.counters['files'] += 1
+                runner(os.path.join(root, filename))
+
+
 def is_import_exception(mod):
     return (mod in IMPORT_EXCEPTIONS or
             any(mod.startswith(m + '.') for m in IMPORT_EXCEPTIONS))
@@ -417,6 +464,8 @@ if __name__ == "__main__":
     add_nova()
     pep8.current_file = current_file
     pep8.readlines = readlines
+    pep8.excluded = excluded
+    pep8.input_dir = input_dir
     try:
         pep8._main()
     finally: