Added pep8 git hook

git_hook_pre-commit

@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+from __future__ import with_statement
+import os
+import re
+import shutil
+import subprocess
+import sys
+import tempfile
+
+
+def system(*args, **kwargs):
+    kwargs.setdefault('stdout', subprocess.PIPE)
+    proc = subprocess.Popen(args, **kwargs)
+    out, err = proc.communicate()
+    return out
+
+
+def main():
+    ignores = ['W391',  # Blank line at end of file
+               'E128',  # continuation line under-indented
+               'E501',  # line too long :(
+               ]  # --ignore=E501,E128,W391
+    modified = re.compile('^[AM]+\s+(?P<name>.*\.py)', re.MULTILINE)
+    files = system('git', 'status', '--porcelain')
+    files = modified.findall(files)
+
+    tempdir = tempfile.mkdtemp()
+    for name in files:
+        filename = os.path.join(tempdir, name)
+        filepath = os.path.dirname(filename)
+        if not os.path.exists(filepath):
+            os.makedirs(filepath)
+        with file(filename, 'w') as f:
+            system('git', 'show', ':' + name, stdout=f)
+    output = system('pep8', '.', '--ignore=' + ','.join(ignores), cwd=tempdir)
+    shutil.rmtree(tempdir)
+    if output:
+        print output,
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    main()