fw/target: make TargetInfo more POD-like

Split out the loading of the TargetInfo from a target into a separate
function, leaving TargetInfo as a simple container.

wa/framework/target/info.py

@@ -42,6 +42,25 @@ def kernel_config_from_pod(pod):
     return config
 
 
+def get_target_info(target):
+    info = TargetInfo()
+    info.target = target.__class__.__name__
+    info.cpuinfo = target.cpuinfo
+    info.os = target.os
+    info.os_version = target.os_version
+    info.abi = target.abi
+    info.is_rooted = target.is_rooted
+    info.kernel_version = target.kernel_version
+    info.kernel_config = target.config
+
+    if isinstance(target, AndroidTarget):
+        info.screen_resolution = target.screen_resolution
+        info.prop = target.getprop()
+        info.android_id = target.android_id
+
+    return info
+
+
 class TargetInfo(object):
 
     @staticmethod
@@ -56,8 +75,7 @@ class TargetInfo(object):
         instance.is_rooted = pod['is_rooted']
         instance.kernel_version = kernel_version_from_pod(pod)
         instance.kernel_config = kernel_config_from_pod(pod)
-
+        if instance.os == 'android':
-        if pod["target"] == "AndroidTarget":
             instance.screen_resolution = pod['screen_resolution']
             instance.prop = AndroidProperties('')
             instance.prop._properties = pod['prop']
@@ -65,23 +83,7 @@ class TargetInfo(object):
 
         return instance
 
-    def __init__(self, target=None):
+    def __init__(self):
-        if target:
-            self.target = target.__class__.__name__
-            self.cpuinfo = target.cpuinfo
-            self.os = target.os
-            self.os_version = target.os_version
-            self.abi = target.abi
-            self.is_rooted = target.is_rooted
-            self.kernel_version = target.kernel_version
-            self.kernel_config = target.config
-
-            if isinstance(target, AndroidTarget):
-                self.screen_resolution = target.screen_resolution
-                self.prop = target.getprop()
-                self.android_id = target.android_id
-
-        else:
         self.target = None
         self.cpuinfo = None
         self.os = None
@@ -91,11 +93,6 @@ class TargetInfo(object):
         self.kernel_version = None
         self.kernel_config = None
 
-            if isinstance(target, AndroidTarget):
-                self.screen_resolution = None
-                self.prop = None
-                self.android_id = None
-
     def to_pod(self):
         pod = {}
         pod['target'] = self.target
@@ -108,8 +105,7 @@ class TargetInfo(object):
         pod['kernel_release'] = self.kernel_version.release
         pod['kernel_version'] = self.kernel_version.version
         pod['kernel_config'] = dict(self.kernel_config.iteritems())
-
+        if self.os == 'android':
-        if self.target == "AndroidTarget":
             pod['screen_resolution'] = self.screen_resolution
             pod['prop'] = self.prop._properties
             pod['android_id'] = self.android_id

wa/framework/target/manager.py

@@ -6,7 +6,7 @@ from wa.framework.plugin import Parameter
 from wa.framework.target.descriptor import (get_target_description,
                                             instantiate_target,
                                             instantiate_assistant)
-from wa.framework.target.info import TargetInfo
+from wa.framework.target.info import get_target_info
 from wa.framework.target.runtime_parameter_manager import RuntimeParameterManager
 
 from devlib import Gem5SimulationPlatform
@@ -72,7 +72,7 @@ class TargetManager(object):
 
     @memoized
     def get_target_info(self):
-        return TargetInfo(self.target)
+        return get_target_info(self.target)
 
     def merge_runtime_parameters(self, parameters):
         return self.rpm.merge_runtime_parameters(parameters)