targetcontrol.py: use logger.info to replace of bb.note

The bb.note prints multiple same lines when invoke this class again, but
if we set mainlogger.propagate = False, nothing would be printed,
according to logging's document:

https://docs.python.org/3/library/logging.html
Note
If you attach a handler to a logger and one or more of its ancestors, it
may emit the same record multiple times. In general, you should not need
to attach a handler to more than one logger - if you just attach it to
the appropriate logger which is highest in the logger hierarchy, then it
will see all events logged by all descendant loggers, provided that
their propagate setting is left set to True. A common scenario is to
attach handlers only to the root logger, and to let propagation take
care of the rest.

We may need avoid using bb.note or bb.warn in oeqa since it attaches
multiple log handlers which may cause confusions

This patch only sets "mainlogger.propagate = False" in
selftest/runqemu.py and use logger.info to replace bb.note in
targetcontrol.py to minimize the impact.

[YOCTO #10249]

(From OE-Core rev: b139790422bc8e0d80bad063bb78bc1632731bc1)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/runqemu.py

@@ -21,6 +21,10 @@ class RunqemuTests(oeSelfTest):
         self.fstypes = "ext4 iso hddimg vmdk qcow2 vdi"
         self.cmd_common = "runqemu nographic"
 
+        # Avoid emit the same record multiple times.
+        mainlogger = logging.getLogger("BitBake.Main")
+        mainlogger.propagate = False
+
         self.write_config(
 """
 MACHINE = "%s"

meta/lib/oeqa/targetcontrol.py

@@ -18,6 +18,8 @@ from oeqa.utils.dump import TargetDumper
 from oeqa.controllers.testtargetloader import TestTargetLoader
 from abc import ABCMeta, abstractmethod
 
+logger = logging.getLogger('BitBake.QemuRunner')
+
 def get_target_controller(d):
     testtarget = d.getVar("TEST_TARGET")
     # old, simple names
@@ -63,7 +65,7 @@ class BaseTarget(object, metaclass=ABCMeta):
         if os.path.islink(sshloglink):
             os.unlink(sshloglink)
         os.symlink(self.sshlog, sshloglink)
-        bb.note("SSH log file: %s" %  self.sshlog)
+        logger.info("SSH log file: %s" %  self.sshlog)
 
     @abstractmethod
     def start(self, params=None, ssh=True, extra_bootparams=None):
@@ -140,7 +142,6 @@ class QemuTarget(BaseTarget):
         import oe.path
         bb.utils.mkdirhier(self.testdir)
         self.qemurunnerlog = os.path.join(self.testdir, 'qemurunner_log.%s' % self.datetime)
-        logger = logging.getLogger('BitBake.QemuRunner')
         loggerhandler = logging.FileHandler(self.qemurunnerlog)
         loggerhandler.setFormatter(logging.Formatter("%(levelname)s: %(message)s"))
         logger.addHandler(loggerhandler)
@@ -177,8 +178,8 @@ class QemuTarget(BaseTarget):
             os.unlink(qemuloglink)
         os.symlink(self.qemulog, qemuloglink)
 
-        bb.note("rootfs file: %s" %  self.rootfs)
-        bb.note("Qemu log file: %s" % self.qemulog)
+        logger.info("rootfs file: %s" %  self.rootfs)
+        logger.info("Qemu log file: %s" % self.qemulog)
         super(QemuTarget, self).deploy()
 
     def start(self, params=None, ssh=True, extra_bootparams='', runqemuparams='', launch_cmd=''):
@@ -230,14 +231,14 @@ class SimpleRemoteTarget(BaseTarget):
             self.port = addr.split(":")[1]
         except IndexError:
             self.port = None
-        bb.note("Target IP: %s" % self.ip)
+        logger.info("Target IP: %s" % self.ip)
         self.server_ip = d.getVar("TEST_SERVER_IP")
         if not self.server_ip:
             try:
                 self.server_ip = subprocess.check_output(['ip', 'route', 'get', self.ip ]).split("\n")[0].split()[-1]
             except Exception as e:
                 bb.fatal("Failed to determine the host IP address (alternatively you can set TEST_SERVER_IP with the IP address of this machine): %s" % e)
-        bb.note("Server IP: %s" % self.server_ip)
+        logger.info("Server IP: %s" % self.server_ip)
 
     def deploy(self):
         super(SimpleRemoteTarget, self).deploy()