Add a buildifier wrapper (still WIP)
diff --git a/buildifier/buildifier.py b/buildifier/buildifier.py
new file mode 100644
index 0000000..76398f3
--- /dev/null
+++ b/buildifier/buildifier.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+
+import os.path
+import re
+import subprocess
+import sys
+
+regex = re.compile(
+    r"(?P<filename>[^:]*):(?P<line>\d*):(?:(?P<column>\d*):)? (?P<message>.*)"
+)
+
+files = []
+for root, dirnames, filenames in os.walk("."):
+    for filename in filenames:
+        if filename in ["BUILD", "BUILD.bazel"] or filename.endswith(".bzl"):
+            files.append(os.path.relpath(os.path.join(root, filename)))
+
+result = subprocess.run(
+    ["buildifier", "--lint=warn"] + sorted(files),
+    capture_output=True,
+    universal_newlines=True,
+)
+
+findings = []
+messages = []
+
+for line in result.stderr.splitlines():
+    match = regex.match(line)
+    if match:
+        findings.append(match)
+    else:
+        messages.append(line)
+
+if not findings and not messages:
+    sys.exit(0)
+
+for finding in findings: