Add --logging_level option to crosperf.

Add --logging_level={verbose, average, quiet} option to crosperf,
optionally reducing the amount of logging output.  "verbose" gives
the same output Crosperf always gave; "quiet" gives minimal output, and
"average" is in the middle. The default for now is "verbose". Doing this
also involved adding logging levels to the command_executer, and to
image_chromeos (again, with the default being "verbose").

BUG=None
TEST=Tested all three levels of logging, with and without having to
reimage the DUT.  It all worked properly.

Change-Id: Icf8c9a6831fe25202adcb624c6c7e1d1a7ac25a5
Reviewed-on: https://chrome-internal-review.googlesource.com/156883
Reviewed-by: Caroline Tice <cmtice@google.com>
Commit-Queue: Caroline Tice <cmtice@google.com>
Tested-by: Caroline Tice <cmtice@google.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/crosperf/image_checksummer.py b/crosperf/image_checksummer.py
index eeb4466e..2f6694d9 100644
--- a/crosperf/image_checksummer.py
+++ b/crosperf/image_checksummer.py
@@ -11,10 +11,11 @@ from utils.file_utils import FileUtils
 
 class ImageChecksummer(object):
   class PerImageChecksummer(object):
-    def __init__(self, label):
+    def __init__(self, label, log_level):
       self._lock = threading.Lock()
       self.label = label
       self._checksum = None
+      self.log_level = log_level
 
     def Checksum(self):
       with self._lock:
@@ -26,7 +27,8 @@ class ImageChecksummer(object):
             raise Exception("Called Checksum on non-local image!")
           if self.label.chromeos_image:
             if os.path.exists(self.label.chromeos_image):
-              self._checksum = FileUtils().Md5File(self.label.chromeos_image)
+              self._checksum = FileUtils().Md5File(self.label.chromeos_image,
+                                                   log_level=self.log_level)
               logger.GetLogger().LogOutput("Computed checksum is "
                                            ": %s" % self._checksum)
           if not self._checksum:
@@ -50,13 +52,14 @@ class ImageChecksummer(object):
                                                              *args, **kwargs)
       return cls._instance
 
-  def Checksum(self, label):
+  def Checksum(self, label, log_level):
     if label.image_type != "local":
       raise Exception("Attempt to call Checksum on non-local image.")
     with self._lock:
       if label.name not in self._per_image_checksummers:
         self._per_image_checksummers[label.name] = (ImageChecksummer.
-                                                    PerImageChecksummer(label))
+                                                    PerImageChecksummer(label,
+                                                                        log_level))
       checksummer = self._per_image_checksummers[label.name]
 
     try: