Merge remote branch 'cros/upstream' into tempbranch3

server/hosts/remote.py

Index: server/hosts/remote.py
diff --git a/server/hosts/remote.py b/server/hosts/remote.py
index b692480c2976c61ebfd8d11cb9993e651166e23b..e46bc1b65479a1023c576db414b53222e72fc591 100644
--- a/server/hosts/remote.py
+++ b/server/hosts/remote.py
@@ -1,7 +1,7 @@
 """This class defines the Remote host class, mixing in the SiteHost class
 if it is available."""
 
-import os, logging
+import os, logging, urllib
 from autotest_lib.client.common_lib import error
 from autotest_lib.server import utils
 from autotest_lib.server.hosts import base_classes, bootloader
@@ -25,6 +25,7 @@ class RemoteHost(base_classes.Host):
 
     DEFAULT_REBOOT_TIMEOUT = base_classes.Host.DEFAULT_REBOOT_TIMEOUT
     LAST_BOOT_TAG = object()
+    DEFAULT_HALT_TIMEOUT = 2 * 60
 
     VAR_LOG_MESSAGES_COPY_PATH = "/var/log/messages.autotest_start"
 
@@ -88,6 +89,12 @@ class RemoteHost(base_classes.Host):
         self.run('echo b > /proc/sysrq-trigger &')
 
 
+    def halt(self, timeout=DEFAULT_HALT_TIMEOUT, wait=True):
+        self.run('/sbin/halt')
+        if wait:
+            self.wait_down(timeout=timeout)
+
+
     def reboot(self, timeout=DEFAULT_REBOOT_TIMEOUT, label=LAST_BOOT_TAG,
                kernel_args=None, wait=True, fastsync=False,
                reboot_cmd=None, **dargs):
@@ -213,6 +220,21 @@ class RemoteHost(base_classes.Host):
             return None
 
 
+    def get_all_labels(self):
+        """
+        Return all labels, or empty list if label is not set.
+        """
+        if self.job:
+            keyval_path = os.path.join(self.job.resultdir, 'host_keyvals',
+                                       self.hostname)
+            keyvals = utils.read_keyval(keyval_path)
+            all_labels = keyvals.get('labels', '')
+            if all_labels:
+              all_labels = all_labels.split(',')
+              return [urllib.unquote(label) for label in all_labels]
+        return []
+
+
     def delete_tmp_dir(self, tmpdir):
         """
         Delete the given temporary directory on the remote machine.