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# Copyright 2018, The Android Open Source Project
#
# 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.
"""
Module Info class used to hold cached module-info.json.
"""
# pylint: disable=line-too-long
import json
import logging
import os
import shutil
import sys
import tempfile
import time
import atest_utils
import constants
from metrics import metrics
# JSON file generated by build system that lists all buildable targets.
_MODULE_INFO = 'module-info.json'
# JSON file generated by build system that lists dependencies for java.
_JAVA_DEP_INFO = 'module_bp_java_deps.json'
# JSON file generated by build system that lists dependencies for cc.
_CC_DEP_INFO = 'module_bp_cc_deps.json'
# JSON file generated by atest merged the content from module-info,
# module_bp_java_deps.json, and module_bp_cc_deps.
_MERGED_INFO = 'atest_merged_dep.json'
class ModuleInfo:
"""Class that offers fast/easy lookup for Module related details."""
def __init__(self, force_build=False, module_file=None):
"""Initialize the ModuleInfo object.
Load up the module-info.json file and initialize the helper vars.
Args:
force_build: Boolean to indicate if we should rebuild the
module_info file regardless if it's created or not.
module_file: String of path to file to load up. Used for testing.
"""
module_info_target, name_to_module_info = self._load_module_info_file(
force_build, module_file)
self.name_to_module_info = name_to_module_info
self.module_info_target = module_info_target
self.path_to_module_info = self._get_path_to_module_info(
self.name_to_module_info)
self.root_dir = os.environ.get(constants.ANDROID_BUILD_TOP)
@staticmethod
def _discover_mod_file_and_target(force_build):
"""Find the module file.
Args:
force_build: Boolean to indicate if we should rebuild the
module_info file regardless if it's created or not.
Returns:
Tuple of module_info_target and path to module file.
"""
logging.debug('Probing and validating module info...')
module_info_target = None
root_dir = os.environ.get(constants.ANDROID_BUILD_TOP, '/')
out_dir = os.environ.get(constants.ANDROID_PRODUCT_OUT, root_dir)
module_file_path = os.path.join(out_dir, _MODULE_INFO)
# Check if the user set a custom out directory by comparing the out_dir
# to the root_dir.
if out_dir.find(root_dir) == 0:
# Make target is simply file path no-absolute to root
module_info_target = os.path.relpath(module_file_path, root_dir)
else:
# If the user has set a custom out directory, generate an absolute
# path for module info targets.
logging.debug('User customized out dir!')
module_file_path = os.path.join(
os.environ.get(constants.ANDROID_PRODUCT_OUT), _MODULE_INFO)
module_info_target = module_file_path
# Make sure module-info exist and could be load properly.
if not atest_utils.is_valid_json_file(module_file_path) or force_build:
logging.debug('Generating %s - this is required for '
'initial runs or forced rebuilds.', _MODULE_INFO)
build_env = dict(constants.ATEST_BUILD_ENV)
build_start = time.time()
if not atest_utils.build([module_info_target],
verbose=logging.getLogger().isEnabledFor(
logging.DEBUG), env_vars=build_env):
sys.exit(constants.EXIT_CODE_BUILD_FAILURE)
build_duration = time.time() - build_start
metrics.LocalDetectEvent(
detect_type=constants.DETECT_TYPE_ONLY_BUILD_MODULE_INFO,
result=int(build_duration))
return module_info_target, module_file_path
def _load_module_info_file(self, force_build, module_file):
"""Load the module file.
Args:
force_build: Boolean to indicate if we should rebuild the
module_info file regardless if it's created or not.
module_file: String of path to file to load up. Used for testing.
Returns:
Tuple of module_info_target and dict of json.
"""
# If module_file is specified, we're testing so we don't care if
# module_info_target stays None.
module_info_target = None
file_path = module_file
if not file_path:
module_info_target, file_path = self._discover_mod_file_and_target(
force_build)
merged_file_path = self.get_atest_merged_info_path()
if (not self.need_update_merged_file(force_build)
and os.path.exists(merged_file_path)):
file_path = merged_file_path
logging.debug('Loading %s as module-info.', file_path)
with open(file_path) as json_file:
mod_info = json.load(json_file)
if self.need_update_merged_file(force_build):
mod_info = self._merge_build_system_infos(mod_info)
return module_info_target, mod_info
@staticmethod
def _get_path_to_module_info(name_to_module_info):
"""Return the path_to_module_info dict.
Args:
name_to_module_info: Dict of module name to module info dict.
Returns:
Dict of module path to module info dict.
"""
path_to_module_info = {}
for mod_name, mod_info in name_to_module_info.items():
# Cross-compiled and multi-arch modules actually all belong to
# a single target so filter out these extra modules.
if mod_name != mod_info.get(constants.MODULE_NAME, ''):
continue
for path in mod_info.get(constants.MODULE_PATH, []):
mod_info[constants.MODULE_NAME] = mod_name
# There could be multiple modules in a path.
if path in path_to_module_info:
path_to_module_info[path].append(mod_info)
else:
path_to_module_info[path] = [mod_info]
return path_to_module_info
def is_module(self, name):
"""Return True if name is a module, False otherwise."""
if self.get_module_info(name):
return True
return False
def get_paths(self, name):
"""Return paths of supplied module name, Empty list if non-existent."""
info = self.get_module_info(name)
if info:
return info.get(constants.MODULE_PATH, [])
return []
def get_module_names(self, rel_module_path):
"""Get the modules that all have module_path.
Args:
rel_module_path: path of module in module-info.json
Returns:
List of module names.
"""
return [m.get(constants.MODULE_NAME)
for m in self.path_to_module_info.get(rel_module_path, [])]
def get_module_info(self, mod_name):
"""Return dict of info for given module name, None if non-existence."""
module_info = self.name_to_module_info.get(mod_name)
# Android's build system will automatically adding 2nd arch bitness
# string at the end of the module name which will make atest could not
# find the matched module. Rescan the module-info with the matched module
# name without bitness.
if not module_info:
for _, mod_info in self.name_to_module_info.items():
if mod_name == mod_info.get(constants.MODULE_NAME, ''):
return mod_info
return module_info
def is_suite_in_compatibility_suites(self, suite, mod_info):
"""Check if suite exists in the compatibility_suites of module-info.
Args:
suite: A string of suite name.
mod_info: Dict of module info to check.
Returns:
True if it exists in mod_info, False otherwise.
"""
return suite in mod_info.get(constants.MODULE_COMPATIBILITY_SUITES, [])
def get_testable_modules(self, suite=None):
"""Return the testable modules of the given suite name.
Args:
suite: A string of suite name. Set to None to return all testable
modules.
Returns:
List of testable modules. Empty list if non-existent.
If suite is None, return all the testable modules in module-info.
"""
modules = set()
for _, info in self.name_to_module_info.items():
if self.is_testable_module(info):
if suite:
if self.is_suite_in_compatibility_suites(suite, info):
modules.add(info.get(constants.MODULE_NAME))
else:
modules.add(info.get(constants.MODULE_NAME))
return modules
def is_testable_module(self, mod_info):
"""Check if module is something we can test.
A module is testable if:
- it's installed, or
- it's a robolectric module (or shares path with one).
Args:
mod_info: Dict of module info to check.
Returns:
True if we can test this module, False otherwise.
"""
if not mod_info:
return False
if mod_info.get(constants.MODULE_INSTALLED) and self.has_test_config(mod_info):
return True
if self.is_robolectric_test(mod_info.get(constants.MODULE_NAME)):
return True
return False
def has_test_config(self, mod_info):
"""Validate if this module has a test config.
A module can have a test config in the following manner:
- AndroidTest.xml at the module path.
- test_config be set in module-info.json.
- Auto-generated config via the auto_test_config key
in module-info.json.
Args:
mod_info: Dict of module info to check.
Returns:
True if this module has a test config, False otherwise.
"""
# Check if test_config in module-info is set.
for test_config in mod_info.get(constants.MODULE_TEST_CONFIG, []):
if os.path.isfile(os.path.join(self.root_dir, test_config)):
return True
# Check for AndroidTest.xml at the module path.
for path in mod_info.get(constants.MODULE_PATH, []):
if os.path.isfile(os.path.join(self.root_dir, path,
constants.MODULE_CONFIG)):
return True
# Check if the module has an auto-generated config.
return self.is_auto_gen_test_config(mod_info.get(constants.MODULE_NAME))
def get_robolectric_test_name(self, module_name):
"""Returns runnable robolectric module name.
There are at least 2 modules in every robolectric module path, return
the module that we can run as a build target.
Arg:
module_name: String of module.
Returns:
String of module that is the runnable robolectric module, None if
none could be found.
"""
module_name_info = self.get_module_info(module_name)
if not module_name_info:
return None
module_paths = module_name_info.get(constants.MODULE_PATH, [])
if module_paths:
for mod in self.get_module_names(module_paths[0]):
mod_info = self.get_module_info(mod)
if self.is_robolectric_module(mod_info):
return mod
return None
def is_robolectric_test(self, module_name):
"""Check if module is a robolectric test.
A module can be a robolectric test if the specified module has their
class set as ROBOLECTRIC (or shares their path with a module that does).
Args:
module_name: String of module to check.
Returns:
True if the module is a robolectric module, else False.
"""
# Check 1, module class is ROBOLECTRIC
mod_info = self.get_module_info(module_name)
if self.is_robolectric_module(mod_info):
return True
# Check 2, shared modules in the path have class ROBOLECTRIC_CLASS.
if self.get_robolectric_test_name(module_name):
return True
return False
def is_auto_gen_test_config(self, module_name):
"""Check if the test config file will be generated automatically.
Args:
module_name: A string of the module name.
Returns:
True if the test config file will be generated automatically.
"""
if self.is_module(module_name):
mod_info = self.get_module_info(module_name)
auto_test_config = mod_info.get('auto_test_config', [])
return auto_test_config and auto_test_config[0]
return False
def is_robolectric_module(self, mod_info):
"""Check if a module is a robolectric module.
Args:
mod_info: ModuleInfo to check.
Returns:
True if module is a robolectric module, False otherwise.
"""
if mod_info:
return (mod_info.get(constants.MODULE_CLASS, [None])[0] ==
constants.MODULE_CLASS_ROBOLECTRIC)
return False
def is_native_test(self, module_name):
"""Check if the input module is a native test.
Args:
module_name: A string of the module name.
Returns:
True if the test is a native test, False otherwise.
"""
mod_info = self.get_module_info(module_name)
return constants.MODULE_CLASS_NATIVE_TESTS in mod_info.get(
constants.MODULE_CLASS, [])
def has_mainline_modules(self, module_name, mainline_modules):
"""Check if the mainline modules are in module-info.
Args:
module_name: A string of the module name.
mainline_modules: A list of mainline modules.
Returns:
True if mainline_modules is in module-info, False otherwise.
"""
# TODO: (b/165425972)Check AndroidTest.xml or specific test config.
mod_info = self.get_module_info(module_name)
if mainline_modules in mod_info.get(constants.MODULE_MAINLINE_MODULES,
[]):
return True
return False
def generate_atest_merged_dep_file(self):
"""Method for generating atest_merged_dep.json."""
self._merge_build_system_infos(self.name_to_module_info,
self.get_java_dep_info_path(),
self.get_cc_dep_info_path())
def _merge_build_system_infos(self, name_to_module_info,
java_bp_info_path=None, cc_bp_info_path=None):
"""Merge the full build system's info to name_to_module_info.
Args:
name_to_module_info: Dict of module name to module info dict.
java_bp_info_path: String of path to java dep file to load up.
Used for testing.
cc_bp_info_path: String of path to cc dep file to load up.
Used for testing.
Returns:
Dict of merged json of input def_file_path and name_to_module_info.
"""
# Merge _JAVA_DEP_INFO
if not java_bp_info_path:
java_bp_info_path = self.get_java_dep_info_path()
if atest_utils.is_valid_json_file(java_bp_info_path):
with open(java_bp_info_path) as json_file:
java_bp_infos = json.load(json_file)
logging.debug('Merging Java build info: %s', java_bp_info_path)
name_to_module_info = self._merge_soong_info(
name_to_module_info, java_bp_infos)
# Merge _CC_DEP_INFO
if not cc_bp_info_path:
cc_bp_info_path = self.get_cc_dep_info_path()
if atest_utils.is_valid_json_file(cc_bp_info_path):
with open(cc_bp_info_path) as json_file:
cc_bp_infos = json.load(json_file)
logging.debug('Merging CC build info: %s', cc_bp_info_path)
# CC's dep json format is different with java.
# Below is the example content:
# {
# "clang": "${ANDROID_ROOT}/bin/clang",
# "clang++": "${ANDROID_ROOT}/bin/clang++",
# "modules": {
# "ACameraNdkVendorTest": {
# "path": [
# "frameworks/av/camera/ndk"
# ],
# "srcs": [
# "frameworks/tests/AImageVendorTest.cpp",
# "frameworks/tests/ACameraManagerTest.cpp"
# ],
name_to_module_info = self._merge_soong_info(
name_to_module_info, cc_bp_infos.get('modules', {}))
return name_to_module_info
def _merge_soong_info(self, name_to_module_info, mod_bp_infos):
"""Merge the dependency and srcs in mod_bp_infos to name_to_module_info.
Args:
name_to_module_info: Dict of module name to module info dict.
mod_bp_infos: Dict of module name to bp's module info dict.
Returns:
Dict of merged json of input def_file_path and name_to_module_info.
"""
merge_items = [constants.MODULE_DEPENDENCIES, constants.MODULE_SRCS]
for module_name, dep_info in mod_bp_infos.items():
if name_to_module_info.get(module_name, None):
mod_info = name_to_module_info.get(module_name)
for merge_item in merge_items:
dep_info_values = dep_info.get(merge_item, [])
mod_info_values = mod_info.get(merge_item, [])
for dep_info_value in dep_info_values:
if dep_info_value not in mod_info_values:
mod_info_values.append(dep_info_value)
mod_info_values.sort()
name_to_module_info[
module_name][merge_item] = mod_info_values
output_file = self.get_atest_merged_info_path()
if not os.path.isdir(os.path.dirname(output_file)):
os.makedirs(os.path.dirname(output_file))
# b/178559543 saving merged module info in a temp file and copying it to
# atest_merged_dep.json can eliminate the possibility of accessing it
# concurrently and resulting in invalid JSON format.
temp_file = tempfile.NamedTemporaryFile()
with open(temp_file.name, 'w') as _temp:
json.dump(name_to_module_info, _temp, indent=0)
shutil.copy(temp_file.name, output_file)
temp_file.close()
return name_to_module_info
def get_module_dependency(self, module_name, depend_on=None):
"""Get the dependency sets for input module.
Recursively find all the dependencies of the input module.
Args:
module_name: String of module to check.
depend_on: The list of parent dependencies.
Returns:
Set of dependency modules.
"""
if not depend_on:
depend_on = set()
deps = set()
mod_info = self.get_module_info(module_name)
if not mod_info:
return deps
mod_deps = set(mod_info.get(constants.MODULE_DEPENDENCIES, []))
# Remove item in deps if it already in depend_on:
mod_deps = mod_deps - depend_on
deps = deps.union(mod_deps)
for mod_dep in mod_deps:
deps = deps.union(set(self.get_module_dependency(
mod_dep, depend_on=depend_on.union(deps))))
return deps
def get_install_module_dependency(self, module_name, depend_on=None):
"""Get the dependency set for the given modules with installed path.
Args:
module_name: String of module to check.
depend_on: The list of parent dependencies.
Returns:
Set of dependency modules which has installed path.
"""
install_deps = set()
deps = self.get_module_dependency(module_name, depend_on)
logging.debug('%s depends on: %s', module_name, deps)
for module in deps:
mod_info = self.get_module_info(module)
if mod_info and mod_info.get(constants.MODULE_INSTALLED, []):
install_deps.add(module)
logging.debug('modules %s required by %s were not installed',
install_deps, module_name)
return install_deps
@staticmethod
def get_atest_merged_info_path():
"""Returns the path for atest_merged_dep.json.
Returns:
String for atest_merged_dep.json.
"""
return os.path.join(atest_utils.get_build_out_dir(),
'soong', _MERGED_INFO)
@staticmethod
def get_java_dep_info_path():
"""Returns the path for atest_merged_dep.json.
Returns:
String for atest_merged_dep.json.
"""
return os.path.join(atest_utils.get_build_out_dir(),
'soong', _JAVA_DEP_INFO)
@staticmethod
def get_cc_dep_info_path():
"""Returns the path for atest_merged_dep.json.
Returns:
String for atest_merged_dep.json.
"""
return os.path.join(atest_utils.get_build_out_dir(),
'soong', _CC_DEP_INFO)
def has_soong_info(self):
"""Ensure the existence of soong info files.
Returns:
True if soong info need to merge, false otherwise.
"""
return (os.path.isfile(self.get_java_dep_info_path()) and
os.path.isfile(self.get_cc_dep_info_path()))
def need_update_merged_file(self, force_build=False):
"""Check if need to update/generated atest_merged_dep.
If force_build, always update merged info.
If not force build, if soong info exist but merged inforamtion not exist,
need to update merged file.
Args:
force_build: Boolean to indicate that if user want to rebuild
module_info file regardless if it's created or not.
Returns:
True if atest_merged_dep should be updated, false otherwise.
"""
return (force_build or
(self.has_soong_info() and
not os.path.exists(self.get_atest_merged_info_path())))
def is_unit_test(self, mod_info):
"""Return True if input module is unit test, False otherwise.
Args:
mod_info: ModuleInfo to check.
Returns:
True if if input module is unit test, False otherwise.
"""
return mod_info.get(constants.MODULE_IS_UNIT_TEST, '') == 'true'
def get_all_unit_tests(self):
"""Get a list of all the module names which are unit tests."""
unit_tests = []
for mod_name, mod_info in self.name_to_module_info.items():
if mod_info.get(constants.MODULE_NAME, '') == mod_name:
if self.is_unit_test(mod_info):
unit_tests.append(mod_name)
return unit_tests