def _compute_source_deps(self):
"""
Compute the set of dependencies actually used by the source files in the targets
for the compilation task being analyzed.
"""
# Get the class products from the compiler. This provides us with all the info we
# need about what source file/target produces what class.
class_products = self.task.context.products.get('classes')
for target in self.targets:
# for each target, compute a mapping from classes that the target generates to the target
# this mapping is self.targets_by_class
if target not in class_products.by_target:
# If the target isn't in the products map, that means that it had no products - which
# only happens if the target has no source files. This occurs when a target is created
# as a placeholder.
continue
for outdir in class_products.by_target[target]:
for cl in class_products.by_target[target][outdir]:
self.targets_by_class[cl].add(target)
# For each source in the current target, compute a mapping from source files to the classes that they
# really depend on. (Done by parsing class files.)
for source in target.sources:
# we can get the set of classes from a source file by going into the same class_products object
source_file_deps = set()
class_files = set()
for dir in class_products.by_target[source]:
class_files |= set([ ( clfile, dir) for clfile in class_products.by_target[source][dir] ])
# for each class file, get the set of referenced classes - these
# are the classes that it depends on.
for (cname, cdir) in class_files:
cf = ClassFile.from_file(os.path.join(cdir, cname), False)
dep_set = cf.get_external_class_references()
dep_classfiles = [ "%s.class" % s for s in dep_set ]
source_file_deps = source_file_deps.union(dep_classfiles)
self.deps_by_source[source] = source_file_deps
# add data from these classes to the target data in the map.
self.class_deps_by_target[target].update(source_file_deps)
# ==================================================================================================
# Copyright 2011 Twitter, Inc.
# --------------------------------------------------------------------------------------------------
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this work except in compliance with the License.
# You may obtain a copy of the License in the LICENSE file, or 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
from twitter.common import options
from twitter.common.java.class_file import ClassFile
if __name__ == '__main__':
values, args = options.parse()
for arg in args:
cf = ClassFile.from_file(arg)
print os.path.abspath(arg)
print cf
print
def main(args):
for arg in args:
cf = ClassFile.from_file(arg)
print os.path.abspath(arg)
print cf
print
def main(args):
for arg in args:
cf = ClassFile.from_file(arg)
print os.path.abspath(arg)
print cf
print
