[toolchain-utils] Finish switching utils/ to cros_utils/.

This CL finishes switching the subdirectory from 'utils' to
'cros_utils'.  It changes all the remaining import statements to
use 'cros_utils'; it removes the 'cros_utils' symlink, and it
renames the 'utils' subdirectory to 'cros_utils'.

BUG=chromium:568195
TEST=ran crosperf & binary search tool unittests.

Change-Id: I7427f8bfb2ddac3a4b6108e46782039059684382
Reviewed-on: https://chrome-internal-review.googlesource.com/270396
Commit-Ready: Caroline Tice <cmtice@google.com>
Tested-by: Caroline Tice <cmtice@google.com>
Reviewed-by: Cassidy Burden <cburden@google.com>
Reviewed-by: Luis Lozano <llozano@chromium.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/cros_utils/machines.py b/cros_utils/machines.py
new file mode 100644
index 00000000..722df3b8
--- /dev/null
+++ b/cros_utils/machines.py
@@ -0,0 +1,25 @@
+# Copyright 2015 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+"""Utilities relating to machine-specific functions."""
+
+from __future__ import print_function
+
+from cros_utils import command_executer
+
+
+def MachineIsPingable(machine, logging_level='average'):
+  """Checks to see if a machine is responding to 'ping'.
+
+  Args:
+    machine: String containing the name or ip address of the machine to check.
+    logging_level: The logging level with which to initialize the
+      command_executer (from command_executor.LOG_LEVEL enum list).
+
+  Returns:
+    Boolean indicating whether machine is responding to ping or not.
+  """
+  ce = command_executer.GetCommandExecuter(log_level=logging_level)
+  cmd = 'ping -c 1 -w 3 %s' % machine
+  status = ce.RunCommand(cmd)
+  return status == 0