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-rw-r--r--meta/lib/oeqa/controllers/testtargetloader.py70
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diff --git a/meta/lib/oeqa/controllers/testtargetloader.py b/meta/lib/oeqa/controllers/testtargetloader.py
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1import types
2import bb
3import os
4
5# This class is responsible for loading a test target controller
6class TestTargetLoader:
7
8 # Search oeqa.controllers module directory for and return a controller
9 # corresponding to the given target name.
10 # AttributeError raised if not found.
11 # ImportError raised if a provided module can not be imported.
12 def get_controller_module(self, target, bbpath):
13 controllerslist = self.get_controller_modulenames(bbpath)
14 bb.note("Available controller modules: %s" % str(controllerslist))
15 controller = self.load_controller_from_name(target, controllerslist)
16 return controller
17
18 # Return a list of all python modules in lib/oeqa/controllers for each
19 # layer in bbpath
20 def get_controller_modulenames(self, bbpath):
21
22 controllerslist = []
23
24 def add_controller_list(path):
25 if not os.path.exists(os.path.join(path, '__init__.py')):
26 bb.fatal('Controllers directory %s exists but is missing __init__.py' % path)
27 files = sorted([f for f in os.listdir(path) if f.endswith('.py') and not f.startswith('_')])
28 for f in files:
29 module = 'oeqa.controllers.' + f[:-3]
30 if module not in controllerslist:
31 controllerslist.append(module)
32 else:
33 bb.warn("Duplicate controller module found for %s, only one added. Layers should create unique controller module names" % module)
34
35 for p in bbpath:
36 controllerpath = os.path.join(p, 'lib', 'oeqa', 'controllers')
37 bb.debug(2, 'Searching for target controllers in %s' % controllerpath)
38 if os.path.exists(controllerpath):
39 add_controller_list(controllerpath)
40 return controllerslist
41
42 # Search for and return a controller from given target name and
43 # set of module names.
44 # Raise AttributeError if not found.
45 # Raise ImportError if a provided module can not be imported
46 def load_controller_from_name(self, target, modulenames):
47 for name in modulenames:
48 obj = self.load_controller_from_module(target, name)
49 if obj:
50 return obj
51 raise AttributeError("Unable to load {0} from available modules: {1}".format(target, str(modulenames)))
52
53 # Search for and return a controller or None from given module name
54 def load_controller_from_module(self, target, modulename):
55 obj = None
56 # import module, allowing it to raise import exception
57 module = __import__(modulename, globals(), locals(), [target])
58 # look for target class in the module, catching any exceptions as it
59 # is valid that a module may not have the target class.
60 try:
61 obj = getattr(module, target)
62 if obj:
63 from oeqa.targetcontrol import BaseTarget
64 if (not isinstance(obj, (type, types.ClassType))):
65 bb.warn("Target {0} found, but not of type Class".format(target))
66 if( not issubclass(obj, BaseTarget)):
67 bb.warn("Target {0} found, but subclass is not BaseTarget".format(target))
68 except:
69 obj = None
70 return obj