71004f8135
This change cleans the packages' intermediate files if their overlays changed between incremental builds. If two builds have different overlay, they will have different R classes, and so the jar files in the common intermediate dirs can not be shared. Therefore incremental build can't be applied. This change detects the overlay changes on package's base. If a package's overlay is different from the previous build, its common intermediate dir is nuked. This makes broader incremental builds possible. Change-Id: I368610ebbbbc85a80f9aecd714ab22cd78da7f12
91 lines
2.9 KiB
Python
Executable file
91 lines
2.9 KiB
Python
Executable file
#!/usr/bin/env python
|
|
#
|
|
# Copyright (C) 2012 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.
|
|
|
|
"""
|
|
Prints to stdout the package names that have overlay changes between
|
|
current_overlays.txt and previous_overlays.txt.
|
|
|
|
Usage: diff_package_overlays.py <current_packages.txt> <current_overlays.txt> <previous_overlays.txt>
|
|
current_packages.txt contains all package names separated by space in the current build.
|
|
This script modfies current_packages.txt if necessary: if there is a package in
|
|
previous_overlays.txt but absent from current_packages.txt, we copy that line
|
|
from previous_overlays.txt over to current_packages.txt. Usually that means we
|
|
just don't care that package in the current build (for example we are switching
|
|
from a full build to a partial build with mm/mmm), and we should carry on the
|
|
previous overlay config so current_overlays.txt always reflects the current
|
|
status of the entire tree.
|
|
|
|
Format of current_overlays.txt and previous_overlays.txt:
|
|
<package_name> <resource_overlay> [resource_overlay ...]
|
|
<package_name> <resource_overlay> [resource_overlay ...]
|
|
...
|
|
"""
|
|
|
|
import sys
|
|
|
|
def main(argv):
|
|
if len(argv) != 4:
|
|
print >> sys.stderr, __doc__
|
|
sys.exit(1)
|
|
|
|
f = open(argv[1])
|
|
all_packages = set(f.read().split())
|
|
f.close()
|
|
|
|
def load_overlay_config(filename):
|
|
f = open(filename)
|
|
result = {}
|
|
for line in f:
|
|
line = line.strip()
|
|
if not line or line.startswith("#"):
|
|
continue
|
|
words = line.split()
|
|
result[words[0]] = " ".join(words[1:])
|
|
f.close()
|
|
return result
|
|
|
|
current_overlays = load_overlay_config(argv[2])
|
|
previous_overlays = load_overlay_config(argv[3])
|
|
|
|
result = []
|
|
carryon = []
|
|
for p in current_overlays:
|
|
if p not in previous_overlays:
|
|
result.append(p)
|
|
elif current_overlays[p] != previous_overlays[p]:
|
|
result.append(p)
|
|
for p in previous_overlays:
|
|
if p not in current_overlays:
|
|
if p in all_packages:
|
|
# overlay changed
|
|
result.append(p)
|
|
else:
|
|
# we don't build p in the current build.
|
|
carryon.append(p)
|
|
|
|
# Add carryon to the current overlay config file.
|
|
if carryon:
|
|
f = open(argv[2], "a")
|
|
for p in carryon:
|
|
f.write(p + " " + previous_overlays[p] + "\n")
|
|
f.close()
|
|
|
|
# Print out the package names that have overlay change.
|
|
for r in result:
|
|
print r
|
|
|
|
if __name__ == "__main__":
|
|
main(sys.argv)
|