[cr tool] Adding the run command

BUG=316397

Review URL: https://codereview.chromium.org/99483002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238352 0039d316-1c4b-4281-b951-d872f2087c98

tools/cr/cr/commands/run.py

+# 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.
+
+"""A module for the run command."""
+
+import cr
+
+
+class RunCommand(cr.Command):
+  """The implementation of the run command.
+
+  This first uses Builder to bring the target up to date.
+  It then uses Installer to install the target (if needed), and
+  finally it uses Runner to run the target.
+  You can use skip version to not perform any of these steps.
+  """
+
+  def __init__(self):
+    super(RunCommand, self).__init__()
+    self.help = 'Invoke a target'
+
+  def AddArguments(self, subparsers):
+    parser = super(RunCommand, self).AddArguments(subparsers)
+    cr.Builder.AddArguments(self, parser)
+    cr.Installer.AddArguments(self, parser)
+    cr.Runner.AddArguments(self, parser)
+    cr.Target.AddArguments(self, parser, allow_multiple=True)
+    self.ConsumeArgs(parser, 'the binary')
+    return parser
+
+  def Run(self, context):
+    targets = cr.Target.GetTargets(context)
+    test_targets = [target for target in targets if target.is_test]
+    run_targets = [target for target in targets if not target.is_test]
+    if cr.Installer.Skipping(context):
+      # No installer, only build test targets
+      build_targets = test_targets
+    else:
+      build_targets = targets
+    if build_targets:
+      cr.Builder.Build(context, build_targets, [])
+    # See if we can use restart when not installing
+    if cr.Installer.Skipping(context):
+      cr.Runner.Restart(context, targets, context.remains)
+    else:
+      cr.Runner.Kill(context, run_targets, [])
+      cr.Installer.Reinstall(context, run_targets, [])
+      cr.Runner.Invoke(context, targets, context.remains)
+