First version of the PGO recipe.

scripts/slave/recipe_modules/path/api.py

Index: scripts/slave/recipe_modules/path/api.py
diff --git a/scripts/slave/recipe_modules/path/api.py b/scripts/slave/recipe_modules/path/api.py
index 1e66fe88c06cd428cc530f7c5d6b4b740e6ac842..8480f55559e8e1e33a544fc8a0e8a993e9ead91d 100644
--- a/scripts/slave/recipe_modules/path/api.py
+++ b/scripts/slave/recipe_modules/path/api.py
@@ -182,7 +182,7 @@ class PathApi(recipe_api.RecipeApi):
           json.dump(os.listdir(sys.argv[1]), f)
       """,
       args=[path, self.m.json.output()],
-      step_test_data=(step_test_data or 
+      step_test_data=(step_test_data or
                       self.test_api.listdir(['file 1', 'file 2'])),
     )
 
@@ -223,7 +223,7 @@ class PathApi(recipe_api.RecipeApi):
       args=[path],
     )
 
-  def rmcontents(self, name, path):
+  def rmcontents(self, name, path, file_filter=None):
     """
     Similar to rmtree, but removes only contents not the directory.
 
@@ -231,21 +231,33 @@ class PathApi(recipe_api.RecipeApi):
     Deleting current working directory makes all further getcwd calls fail
     until chdir is called. chdir would be tricky in recipes, so we provide
     a call that doesn't delete the directory itself.
+
+    An optional filter can be passed to the function to only remove the files
+    that match it.

[iannucci, 2014/06/19 21:37:17]

specify that this should be a glob pattern appended to path

[Sébastien Marchand, 2014/07/03 19:13:17]

I've removed this.

     """
     self.assert_absolute(path)
     return self.m.python.inline(
       'rmcontents ' + name,
       """
-      import os, sys
+      import glob, os, sys
       from common import chromium_utils
 
-      for p in [os.path.join(sys.argv[1], x) for x in os.listdir(sys.argv[1])]:
+      file_list = []
+
+      if len(sys.argv) > 2:
+        file_list = [os.path.join(sys.argv[1], x) for x in glob.glob(
+            sys.argv[1] + sys.argv[2])]
+      else:
+        file_list = [os.path.join(sys.argv[1], x) for x in os.listdir(
+            sys.argv[1])]
+
+      for p in file_list:
         if os.path.isdir(p):
           chromium_utils.RemoveDirectory(p)
         else:
           os.unlink(p)
       """,
-      args=[path],
+      args=[path, file_filter],
     )
 
   def rmwildcard(self, pattern, path, **kwargs):