Cross-repo recipe package system.

scripts/tools/show_me_the_modules.py

 #!/usr/bin/env python
 # 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.
 
 from __future__ import print_function
 
 import collections
 import inspect
 import os
 import sys
 
 sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 sys.path.append(os.path.join(os.path.dirname(__file__),
                 '..', '..', 'third_party'))
 
+from recipe_engine import loader
 from recipe_engine import main as recipe_main
+from recipe_engine import package
 from recipe_engine import recipe_api
-from recipe_engine import loader
 
-from slave import recipe_universe
+PACKAGE_PYL = os.path.join(
+    os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
+    'slave', 'recipe_package.pyl')
 
 def trim_doc(docstring):
   """From PEP 257"""
   if not docstring:
     return ''
   # Convert tabs to spaces (following the normal Python rules)
   # and split into a list of lines:
   lines = docstring.expandtabs().splitlines()
   # Determine minimum indentation (first line doesn't count):
   indent = sys.maxint
@@ skipping 47 matching lines @@
     p(0, '--', lines[0])
   else:
     p(0)
 
 def main():
   common_methods = set(k for k, v in member_iter(recipe_api.RecipeApi))
   p(0, 'Common Methods -- %s' % os.path.splitext(recipe_api.__file__)[0])
   for method in sorted(common_methods):
     pmethod(1, method, getattr(recipe_api.RecipeApi, method))
 
-  universe = recipe_universe.get_universe()
-  deps = universe.deps_from_paths(
-      { modpath: modpath
-        for modpath in universe.loop_over_recipe_modules() },
-      base_path=None)
+  universe = loader.RecipeUniverse(package.PackageDeps.create(PACKAGE_PYL))
+  deps = universe.deps_from_spec(
+      # TODO(luqui): This doesn't handle name scoping correctly (e.g. same-named
+      # modules in different packages).
+      { modpath: modpath.split('/')[-1]
+        for modpath in universe.loop_over_recipe_modules() })
 
   inst = loader.create_recipe_api(
       deps, recipe_main.SequentialRecipeEngine(None, {}, None))
 
   for mod_name, mod in deps.iteritems():
     p(0)
     p(0, "(%s) -- %s" % (mod_name, mod.__path__[0]))
     if mod.LOADED_DEPS:
       p(1, 'DEPS:', list(mod.LOADED_DEPS))
 
@@ skipping 11 matching lines @@
         p(2, '"', line)
 
     for fn_name, obj in member_iter(subinst):
       if fn_name in base_fns:
         continue
       pmethod(1, fn_name, obj)
 
 
 if __name__ == '__main__':
   main()