Aliasing sync -s to 'smartsync'

This alias will let people use this command without having to
remember the option.

Change-Id: I3256d9e8e884c5be9e77f70e9cfb73e0f0c544c6

subcmds/smartsync.py

@@ -0,0 +1,33 @@
+#
+# Copyright (C) 2010 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from sync import Sync
+
+class Smartsync(Sync):
+  common = True
+  helpSummary = "Update working tree to the latest known good revision"
+  helpUsage = """
+%prog [<project>...]
+"""
+  helpDescription = """
+The '%prog' command is a shortcut for sync -s.
+"""
+
+  def _Options(self, p):
+    Sync._Options(self, p, show_smart=False)
+
+  def Execute(self, opt, args):
+    opt.smart_sync = True
+    Sync.Execute(self, opt, args)

subcmds/sync.py

@@ -94,7 +94,7 @@ class Sync(Command, MirrorSafeCommand):
 
 """
 
-  def _Options(self, p):
+  def _Options(self, p, show_smart=True):
     p.add_option('-l','--local-only',
                  dest='local_only', action='store_true',
                  help="only update working tree, don't fetch")
@@ -104,9 +104,10 @@ def _Options(self, p):
     p.add_option('-d','--detach',
                  dest='detach_head', action='store_true',
                  help='detach projects back to manifest revision')
-    p.add_option('-s', '--smart-sync',
-                 dest='smart_sync', action='store_true',
-                 help='smart sync using manifest from a known good build')
+    if show_smart:
+      p.add_option('-s', '--smart-sync',
+                   dest='smart_sync', action='store_true',
+                   help='smart sync using manifest from a known good build')
 
     g = p.add_option_group('repo Version options')
     g.add_option('--no-repo-verify',