demo

hooks.yaml

@@ -1,3 +1,10 @@
+-   id: pep8-check
+    name: pep8 check
+    description: "demo"
+    entry: pep8-check
+    language: python
+    files: \.py$
+    args: [-i]
 -   id: autopep8-wrapper
     name: autopep8 wrapper
     description: "Runs autopep8 over python source.  If you configure additional arguments you'll want to at least include -i."

pre_commit_hooks/pep8_check.py

@@ -0,0 +1,24 @@
+from __future__ import absolute_import
+from __future__ import print_function
+from __future__ import unicode_literals
+
+import argparse
+import io
+import sys
+import xml.sax
+from pre_commit_hooks.util import cmd_output
+
+
+def check_pep8(argv=None):
+    parser = argparse.ArgumentParser()
+    parser.add_argument('filenames', nargs='*', help='XML filenames to check.')
+    args = parser.parse_args(argv)
+    print (args)
+
+    retval = 0
+    lines = cmd_output("git diff --cached -- '*.py' | "
+                       "`which pep8` --max-line-length=119 --show-source --diff --ignore=E402,E731").splitlines()
+    if len(lines) > 0:
+        print (lines)
+        retval = 1
+    return retval

setup.py

@@ -33,6 +33,7 @@ setup(
     ],
     entry_points={
         'console_scripts': [
+            'pep8-check = pre_commit_hooks.pep8_check:main',
             'autopep8-wrapper = pre_commit_hooks.autopep8_wrapper:main',
             'check-added-large-files = pre_commit_hooks.check_added_large_files:main',
             'check-ast = pre_commit_hooks.check_ast:check_ast',