revent workload part 1

wa/commands/record.py

@@ -0,0 +1,92 @@
+#    Copyright 2014-2015 ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import os
+import sys
+
+
+from wa import Command, settings
+from wa.framework.configuration import RunConfiguration
+from wa.framework.resource import Executable, NO_ONE, ResourceResolver
+from wa.utils.revent import ReventRecorder
+
+
+class RecordCommand(Command):
+
+    name = 'record'
+    description = '''Performs a revent recording
+
+    This command helps making revent recordings. It will automatically
+    deploy revent and even has the option of automatically opening apps.
+
+    Revent allows you to record raw inputs such as screen swipes or button presses.
+    This can be useful for recording inputs for workloads such as games that don't
+    have XML UI layouts that can be used with UIAutomator. As a drawback from this,
+    revent recordings are specific to the device type they were recorded on.
+
+    WA uses two parts to the names of revent recordings in the format,
+    {device_name}.{suffix}.revent.
+
+     - device_name can either be specified manually with the ``-d`` argument or
+       it can be automatically determined. On Android device it will be obtained
+       from ``build.prop``, on Linux devices it is obtained from ``/proc/device-tree/model``.
+     - suffix is used by WA to determine which part of the app execution the
+       recording is for, currently these are either ``setup`` or ``run``. This
+       should be specified with the ``-s`` argument.
+    '''
+
+    def initialize(self, context):
+        self.parser.add_argument('-d', '--device', metavar='DEVICE',
+                                 help='''
+                                 Specify the device on which to run. This will
+                                 take precedence over the device (if any)
+                                 specified in configuration.
+                                 ''')
+
+    def execute(state, args):
+        if args.device:
+            device =  args.device
+            device_config = {}
+        else:
+            device = state.run_config.device
+            device_config = state.run_config.device_config
+        target_manager = TargetManager(device, device_config)
+
+
+def get_revent_binary(abi):
+    resolver = ResourceResolver()
+    resource = Executable(NO_ONE, abi, 'revent')
+    return resolver.get(resource)
+
+
+class ReventRecorder(object):
+
+    def __init__(self, target):
+        self.target = target
+        self.executable = None
+        self.deploy()
+
+    def deploy(self):
+        host_executable = get_revent_binary(self.target.abi)
+        self.executable = self.target.install(host_executable)
+
+    def record(self, path):
+        name = os.path.basename(path)
+        target_path = self.target.get_workpath(name)
+        command = '{} record {}'
+
+    def remove(self):
+        if self.executable:
+            self.target.uninstall('revent')