bitbake: toaster: Record critical errors

Critical errors (where a build failed for reasons of
misconfiguration, such as a machine being specified which is not
in a project's layers) were being ignored (only log records
up to ERROR level were being logged to Toaster's db). This meant that
the build would fail but would not correctly report why.

Add support for CRITICAL error levels to the LogMessage model,
include errors at this level in the errors property for a build,
and show errors at this level in the build dashboard.

[YOCTO #8320]

(Bitbake rev: b6eacbca9cacb607de864ab7d093deb296da8226)

Signed-off-by: Elliot Smith <elliot.smith@intel.com>
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/orm/models.py

@@ -353,7 +353,9 @@ class Build(models.Model):
 
     @property
     def errors(self):
-        return (self.logmessage_set.filter(level=LogMessage.ERROR)|self.logmessage_set.filter(level=LogMessage.EXCEPTION))
+        return (self.logmessage_set.filter(level=LogMessage.ERROR) |
+                self.logmessage_set.filter(level=LogMessage.EXCEPTION) |
+                self.logmessage_set.filter(level=LogMessage.CRITICAL))
 
     @property
     def warnings(self):
@@ -1285,16 +1287,20 @@ class LogMessage(models.Model):
     INFO = 0
     WARNING = 1
     ERROR = 2
+    CRITICAL = 3
 
-    LOG_LEVEL = ( (INFO, "info"),
-            (WARNING, "warn"),
-            (ERROR, "error"),
-            (EXCEPTION, "toaster exception"))
+    LOG_LEVEL = (
+        (INFO, "info"),
+        (WARNING, "warn"),
+        (ERROR, "error"),
+        (CRITICAL, "critical"),
+        (EXCEPTION, "toaster exception")
+    )
 
     build = models.ForeignKey(Build)
     task  = models.ForeignKey(Task, blank = True, null=True)
     level = models.IntegerField(choices=LOG_LEVEL, default=INFO)
-    message=models.CharField(max_length=240)
+    message = models.CharField(max_length=240)
     pathname = models.FilePathField(max_length=255, blank=True)
     lineno = models.IntegerField(null=True)