Let bot_update recipe api force usage of bot_update.

scripts/slave/recipe_modules/bot_update/api.py

Index: scripts/slave/recipe_modules/bot_update/api.py
diff --git a/scripts/slave/recipe_modules/bot_update/api.py b/scripts/slave/recipe_modules/bot_update/api.py
index fe040e7945459da0abaedb24408db01e1a9172d2..0741a1f9c1a2242e197f5f4781e07b8ea6494a88 100644
--- a/scripts/slave/recipe_modules/bot_update/api.py
+++ b/scripts/slave/recipe_modules/bot_update/api.py
@@ -57,7 +57,7 @@ class BotUpdateApi(recipe_api.RecipeApi):
 
   def ensure_checkout(self, gclient_config=None, suffix=None,
                       patch=True, ref=None, update_presentation=True,
-                      **kwargs):
+                      force=False, **kwargs):
     # We can re-use the gclient spec from the gclient module, since all the
     # data bot_update needs is already configured into the gclient spec.
     cfg = gclient_config or self.m.gclient.c
@@ -118,6 +118,9 @@ class BotUpdateApi(recipe_api.RecipeApi):
     cmd = [item for flag_set in flags
            for item in flag_set if flag_set[1] is not None]
 
+    if force:  # pragma: no cover

[hinoka, 2014/05/16 23:33:48]

Lets actually add coverage for this, via a fake builder.

[agable, 2014/05/19 16:25:19]

Done, PTAL.

+      cmd.append('--force')
+
     # Inject Json output for testing.
     git_mode = self.m.properties.get('mastername') in GIT_MASTERS
     first_sln = cfg.solutions[0].name