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#!/usr/bin/env python
# Copyright 2014 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.
"""Adaptor script called through build/isolate.gypi.
Creates a wrapping .isolate which 'includes' the original one, that can be
consumed by tools/swarming_client/isolate.py. Path variables are determined
based on the current working directory. The relative_cwd in the .isolated file
is determined based on *the .isolate file that declare the 'command' variable to
be used* so the wrapping .isolate doesn't affect this value.
It packages all the dynamic libraries found in this wrapping .isolate. This is
inefficient and non-deterministic. In the very near future, it will parse
build.ninja, find back the root target and find all the dynamic libraries that
are marked as a dependency to this target.
"""
import glob
import os
import posixpath
import subprocess
import sys
import time
TOOLS_DIR = os.path.dirname(os.path.abspath(__file__))
SWARMING_CLIENT_DIR = os.path.join(TOOLS_DIR, 'swarming_client')
SRC_DIR = os.path.dirname(TOOLS_DIR)
sys.path.insert(0, SWARMING_CLIENT_DIR)
import isolate_format
# Location to grab binaries based on the OS.
DYNAMIC_LIBRARIES = {
'darwin': '*.dylib',
'linux2': 'lib/*.so',
'win32': '*.dll',
}
def get_dynamic_libs(build_dir):
"""Finds all the dynamic libs to map.
Returns:
list of relative path, e.g. [../out/Debug/lib/libuser_prefs.so].
"""
items = set()
root = os.path.join(build_dir, DYNAMIC_LIBRARIES[sys.platform])
for i in glob.iglob(root):
try:
# Will throw on Windows if another process is writing to this file.
open(i).close()
items.add((i, os.stat(i).st_size))
except IOError:
continue
# The following sleep value was carefully selected via random guessing. The
# goal is to detect files that are being linked by checking their file size
# after a small delay.
#
# This happens as other build targets can be built simultaneously. For
# example, base_unittests.isolated is being processed but dynamic libraries
# for chrome are currently being linked.
#
# TODO(maruel): Obviously, this must go away and be replaced with a proper
# ninja parser but we need something now. http://crbug.com/333473
time.sleep(10)
for item in sorted(items):
file_name, file_size = item
try:
open(file_name).close()
if os.stat(file_name).st_size != file_size:
items.remove(item)
except IOError:
items.remove(item)
continue
return [i[0].replace(os.path.sep, '/') for i in items]
def create_wrapper(args, isolate_index, isolated_index):
"""Creates a wrapper .isolate that add dynamic libs.
The original .isolate is not modified.
"""
cwd = os.getcwd()
isolate = args[isolate_index]
# The code assumes the .isolate file is always specified path-less in cwd. Fix
# if this assumption doesn't hold true.
assert os.path.basename(isolate) == isolate, isolate
# This will look like ../out/Debug. This is based against cwd. Note that this
# must equal the value provided as PRODUCT_DIR.
build_dir = os.path.dirname(args[isolated_index])
# This will look like chrome/unit_tests.isolate. It is based against SRC_DIR.
# It's used to calculate temp_isolate.
src_isolate = os.path.relpath(os.path.join(cwd, isolate), SRC_DIR)
# The wrapping .isolate. This will look like
# ../out/Debug/gen/chrome/unit_tests.isolate.
temp_isolate = os.path.join(build_dir, 'gen', src_isolate)
temp_isolate_dir = os.path.dirname(temp_isolate)
# Relative path between the new and old .isolate file.
isolate_relpath = os.path.relpath(
'.', temp_isolate_dir).replace(os.path.sep, '/')
# Will look like ['<(PRODUCT_DIR)/lib/flibuser_prefs.so'].
rebased_libs = [
'<(PRODUCT_DIR)/%s' % i[len(build_dir)+1:]
for i in get_dynamic_libs(build_dir)
]
# Now do actual wrapping .isolate.
out = {
'includes': [
posixpath.join(isolate_relpath, isolate),
],
'variables': {
isolate_format.KEY_TRACKED: rebased_libs,
},
}
if not os.path.isdir(temp_isolate_dir):
os.makedirs(temp_isolate_dir)
comment = (
'# Warning: this file was AUTOGENERATED.\n'
'# DO NO EDIT.\n')
with open(temp_isolate, 'wb') as f:
isolate_format.print_all(comment, out, f)
if '--verbose' in args:
print('Added %d dynamic libs' % len(dynamic_libs))
args[isolate_index] = temp_isolate
def main():
args = sys.argv[1:]
isolate = None
isolated = None
is_component = False
for i, arg in enumerate(args):
if arg == '--isolate':
isolate = i + 1
if arg == '--isolated':
isolated = i + 1
if arg == 'component=shared_library':
is_component = True
if isolate is None or isolated is None:
print >> sys.stderr, 'Internal failure'
return 1
if is_component:
create_wrapper(args, isolate, isolated)
swarming_client = os.path.join(SRC_DIR, 'tools', 'swarming_client')
sys.stdout.flush()
result = subprocess.call(
[sys.executable, os.path.join(swarming_client, 'isolate.py')] + args)
return result
if __name__ == '__main__':
sys.exit(main())
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