add code stats

scripts/code_stats.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+import os, glob
+import ast
+import stat
+import subprocess
+
+fouts = set([x.decode('utf-8') for x in subprocess.check_output(['git', 'ls-files']).strip().split()])
+
+pyf = []
+for d in ["cereal", "common", "scripts", "selfdrive", "tools"]:
+  for root, dirs, files in os.walk(d):
+    for f in files:
+      if f.endswith(".py"):
+        pyf.append(os.path.join(root, f))
+
+imps = set()
+
+class Analyzer(ast.NodeVisitor):
+  def visit_Import(self, node):
+    for alias in node.names:
+      imps.add(alias.name)
+    self.generic_visit(node)
+  def visit_ImportFrom(self, node):
+    imps.add(node.module)
+    self.generic_visit(node)
+
+tlns = 0
+for f in sorted(pyf):
+  if f not in fouts:
+    continue
+  xbit = bool(os.stat(f)[stat.ST_MODE] & stat.S_IXUSR)
+  src = open(f).read()
+  lns = len(src.split("\n"))
+  tree = ast.parse(src)
+  Analyzer().visit(tree)
+  print("%5d %s %s" % (lns, f, xbit))
+  tlns += lns
+
+print("%d lines of parsed openpilot python" % tlns)
+#print(sorted(list(imps)))
+