Add file exclusion to trunk patch creation in push-to-trunk.

tools/push-to-trunk/git_recipes.py

Index: tools/push-to-trunk/git_recipes.py
diff --git a/tools/push-to-trunk/git_recipes.py b/tools/push-to-trunk/git_recipes.py
index fb7424f709478885ed5142d2dbb4c467f92b8222..e8e81fc98cbf1732a97c468734a5c60b74e3d94b 100644
--- a/tools/push-to-trunk/git_recipes.py
+++ b/tools/push-to-trunk/git_recipes.py
@@ -133,8 +133,11 @@ class GitRecipesMixin(object):
   def GitDCommit(self):
     self.Git("cl dcommit -f --bypass-hooks", retry_on=lambda x: x is None)
 

[Michael Achenbach, 2014/03/12 15:35:06]

I hope this approach has no potential for omitting any required files. I could
not find an innate "exclude" feature in git diff.

-  def GitDiff(self, loc1, loc2):
-    return self.Git(MakeArgs(["diff", loc1, loc2]))
+  def GitDiff(self, loc1, loc2, exclude=None):
+    exclude = exclude or []
+    files = self.Git(MakeArgs(["diff", "--name-only", loc1, loc2]))
+    files = filter(lambda f: f not in exclude, files.strip().splitlines())
+    return self.Git(MakeArgs(["diff", loc1, loc2] + files))
 
   def GitPull(self):
     self.Git("pull")