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# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Gathers information about JARs such as test methods and annotations."""
import collections
import logging
import os
import pickle
import re
# TODO(frankf): Move cmd_helper to utils.
from pylib import cmd_helper
# If you change the cached output of proguard, increment this number
PICKLE_FORMAT_VERSION = 1
class JarInfo(object):
"""Helper class for inspecting Jars."""
def __init__(self, jar_path):
self._PROGUARD_PATH = os.path.join(os.environ['ANDROID_SDK_ROOT'],
'tools/proguard/bin/proguard.sh')
if not os.path.exists(self._PROGUARD_PATH):
self._PROGUARD_PATH = os.path.join(os.environ['ANDROID_BUILD_TOP'],
'external/proguard/bin/proguard.sh')
self._PROGUARD_CLASS_RE = re.compile(r'\s*?- Program class:\s*([\S]+)$')
self._PROGUARD_METHOD_RE = re.compile(r'\s*?- Method:\s*(\S*)[(].*$')
self._PROGUARD_ANNOTATION_RE = re.compile(r'\s*?- Annotation \[L(\S*);\]:$')
self._PROGUARD_ANNOTATION_CONST_RE = (
re.compile(r'\s*?- Constant element value.*$'))
self._PROGUARD_ANNOTATION_VALUE_RE = re.compile(r'\s*?- \S+? \[(.*)\]$')
if not os.path.exists(jar_path):
raise Exception('%s not found, please build it' % jar_path)
self._jar_path = jar_path
self._annotation_map = collections.defaultdict(list)
self._pickled_proguard_name = self._jar_path + '-proguard.pickle'
self._test_methods = []
if not self._GetCachedProguardData():
self._GetProguardData()
def _GetCachedProguardData(self):
if (os.path.exists(self._pickled_proguard_name) and
(os.path.getmtime(self._pickled_proguard_name) >
os.path.getmtime(self._jar_path))):
logging.info('Loading cached proguard output from %s',
self._pickled_proguard_name)
try:
with open(self._pickled_proguard_name, 'r') as r:
d = pickle.loads(r.read())
if d['VERSION'] == PICKLE_FORMAT_VERSION:
self._annotation_map = d['ANNOTATION_MAP']
self._test_methods = d['TEST_METHODS']
return True
except:
logging.warning('PICKLE_FORMAT_VERSION has changed, ignoring cache')
return False
def _GetProguardData(self):
proguard_output = cmd_helper.GetCmdOutput([self._PROGUARD_PATH,
'-injars', self._jar_path,
'-dontshrink',
'-dontoptimize',
'-dontobfuscate',
'-dontpreverify',
'-dump',
]).split('\n')
clazz = None
method = None
annotation = None
has_value = False
qualified_method = None
for line in proguard_output:
m = self._PROGUARD_CLASS_RE.match(line)
if m:
clazz = m.group(1).replace('/', '.') # Change package delim.
annotation = None
continue
m = self._PROGUARD_METHOD_RE.match(line)
if m:
method = m.group(1)
annotation = None
qualified_method = clazz + '#' + method
if method.startswith('test') and clazz.endswith('Test'):
self._test_methods += [qualified_method]
continue
if not qualified_method:
# Ignore non-method annotations.
continue
m = self._PROGUARD_ANNOTATION_RE.match(line)
if m:
annotation = m.group(1).split('/')[-1] # Ignore the annotation package.
self._annotation_map[qualified_method].append(annotation)
has_value = False
continue
if annotation:
if not has_value:
m = self._PROGUARD_ANNOTATION_CONST_RE.match(line)
if m:
has_value = True
else:
m = self._PROGUARD_ANNOTATION_VALUE_RE.match(line)
if m:
value = m.group(1)
self._annotation_map[qualified_method].append(
annotation + ':' + value)
has_value = False
logging.info('Storing proguard output to %s', self._pickled_proguard_name)
d = {'VERSION': PICKLE_FORMAT_VERSION,
'ANNOTATION_MAP': self._annotation_map,
'TEST_METHODS': self._test_methods}
with open(self._pickled_proguard_name, 'w') as f:
f.write(pickle.dumps(d))
def _GetAnnotationMap(self):
return self._annotation_map
def _IsTestMethod(self, test):
class_name, method = test.split('#')
return class_name.endswith('Test') and method.startswith('test')
def GetTestAnnotations(self, test):
"""Returns a list of all annotations for the given |test|. May be empty."""
if not self._IsTestMethod(test):
return []
return self._GetAnnotationMap()[test]
def _AnnotationsMatchFilters(self, annotation_filter_list, annotations):
"""Checks if annotations match any of the filters."""
if not annotation_filter_list:
return True
for annotation_filter in annotation_filter_list:
filters = annotation_filter.split('=')
if len(filters) == 2:
key = filters[0]
value_list = filters[1].split(',')
for value in value_list:
if key + ':' + value in annotations:
return True
elif annotation_filter in annotations:
return True
return False
def GetAnnotatedTests(self, annotation_filter_list):
"""Returns a list of all tests that match the given annotation filters."""
return [test for test, annotations in self._GetAnnotationMap().iteritems()
if self._IsTestMethod(test) and self._AnnotationsMatchFilters(
annotation_filter_list, annotations)]
def GetTestMethods(self):
"""Returns a list of all test methods in this jar as Class#testMethod."""
return self._test_methods
@staticmethod
def IsPythonDrivenTest(test):
return 'pythonDrivenTests' in test
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