Add an AOSP builder recipe.

scripts/slave/android/generate_whitelist_deps_step.py

Index: scripts/slave/android/generate_whitelist_deps_step.py
diff --git a/scripts/slave/android/generate_whitelist_deps_step.py b/scripts/slave/android/generate_whitelist_deps_step.py
new file mode 100755
index 0000000000000000000000000000000000000000..019e0cfee8eaffe7cd87e61781b3937c0edae013
--- /dev/null
+++ b/scripts/slave/android/generate_whitelist_deps_step.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python

[iannucci, 2013/05/20 19:41:38]

WDYT about having this script live in the repo that you're checking out?

[mkosiba (inactive), 2013/05/21 10:56:07]

works for me!

+# Copyright 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""This script is used to checkout Chromium source code with a custom set of
+DEPS entries. The DEPS entries are generated by consulting a script that is
+checked into the main Chromium repository."""
+
+import argparse
+import logging
+import os
+import sys
+
+try:
+  import json  # pylint: disable=F0401
+except ImportError:
+  import simplejson as json

[iannucci, 2013/05/20 19:41:38]

We don't need this dance any more, since we should always be >= 2.6 (actually,
2.7, but that's only 80% rolled out).

Also, you're using argparse, which requires 2.7 anyway :)

[mkosiba (inactive), 2013/05/21 10:56:07]

Done.

+
+def deps_blacklist(path_to_whitelist_script, path_to_deps_file, method):
+  local_vars = {}
+  execfile(path_to_whitelist_script, {'os': os}, local_vars)
+  deps_whitelist = local_vars['DepsWhitelist']()
+  return deps_whitelist.__getattribute__(method)(path_to_deps_file)
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--method', help='Method to use to fetch from whitelist.',
+                      required=True)
+  parser.add_argument('--path-to-deps', help='Path to DEPS file.',
+                      required=True)
+  parser.add_argument('--path-to-whitelist', help='Path to the whitelist file.',
+                      required=True)
+  parser.add_argument('--output-json', help='Name of file to write output to.',
+                      default=None)

[iannucci, 2013/05/20 19:41:38]

Technically, None is the default for default :)

[mkosiba (inactive), 2013/05/21 10:56:07]

Done.

+  parser.add_argument('verbose', action='store_true')
+  opts = parser.parse_args()
+
+  logging.getLogger().setLevel(logging.DEBUG if opts.verbose else logging.WARN)
+
+  blacklist = deps_blacklist(opts.path_to_whitelist, opts.path_to_deps,
+                             opts.method)
+  if (opts.output_json):
+    output_dict = {
+        'blacklist' : blacklist
+    }
+    with open(opts.output_json, 'w') as output_json_file:
+      json.dump(output_dict, output_json_file)
+  else:
+    print blacklist
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())
+