root/build-tools/stx/dsccache.py
Luis Sampaio 7b957158bb Reuse fix to not rebuild if no source changes
build-pkgs --reuse rebuilds some packages even without source
changes. This commit fixes the checksum comparison which was
not working correctly for all package paths.

Test Plan:
Pass: build-pkgs --reuse and no packages were rebuilt
Pass: build-pkgs (no packages were rebuilt)
Pass: make changes to 1 package and call build-pkgs to
rebuild it
Pass: build-pkgs --clean (rebuilds all local packages)

Closes-Bug: 1999941
Signed-off-by: Luis Sampaio <luis.sampaio@windriver.com>
Change-Id: Id93a692f6a69212967453e42809e66595ae01f59
2022-12-16 13:12:03 -08:00

103 lines
3.6 KiB
Python
Executable File

#!/usr/bin/python3
# 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.
#
# Copyright (C) 2021 Wind River Systems,Inc
import os
import pickle
class DscCache():
def __init__(self, logger, cache_file):
self.logger = logger
self.cache_file = cache_file
def get_package(self, package):
if not os.path.exists(self.cache_file):
self.logger.warn("dscCache:%s does not exist" % self.cache_file)
return None, None
try:
with open(self.cache_file, 'rb') as fcache:
dsc_cache = pickle.load(fcache)
except Exception as e:
self.logger.error(str(e))
self.logger.error("DscCache failed to open the cache file")
else:
if package in dsc_cache.keys():
dsc_file = dsc_cache[package].split(':')[0]
checksum = dsc_cache[package].split(':')[1]
return dsc_file, checksum
return None, None
def get_package_re(self, package):
if not os.path.exists(self.cache_file):
self.logger.warn("dscCache:%s does not exist" % self.cache_file)
return None, None
try:
with open(self.cache_file, 'rb') as fcache:
dsc_cache = pickle.load(fcache)
except Exception as e:
self.logger.error(str(e))
self.logger.error("DscCache failed to open the cache file")
else:
for pkg in dsc_cache.keys():
if not pkg.endswith(package):
continue
match_item = dsc_cache[pkg]
self.logger.debug("dscCache: Matched item %s" % match_item)
dsc_file = match_item.split(':')[0]
checksum = match_item.split(':')[1]
return dsc_file, checksum
return None, None
def set_package(self, package, checksum):
dsc_cache = {}
if os.path.exists(self.cache_file):
with open(self.cache_file, 'rb') as fcache:
dsc_cache = pickle.load(fcache)
self.logger.debug("dscCache:Append or update %s" % package)
else:
self.logger.debug("dscCache:Not exist, need to create")
if checksum:
dsc_cache[package] = checksum
else:
del dsc_cache[package]
with open(self.cache_file, 'wb+') as fcache:
pickle.dump(dsc_cache, fcache, pickle.HIGHEST_PROTOCOL)
return True
def load(self, show=False):
dsc_cache = None
if not os.path.exists(self.cache_file):
self.logger.warn("dscCache:%s does not exist" % self.cache_file)
return None
try:
with open(self.cache_file, 'rb') as fcache:
dsc_cache = pickle.load(fcache)
except Exception as e:
self.logger.error("Failed to load dsc cache: %s", str(e))
if show and dsc_cache:
for pdir, pval in dsc_cache.items():
self.logger.debug("dscCache display: %s -> %s", pdir, pval)
self.logger.debug("dscCache display: Total dscs count: %d", len(dsc_cache))
return dsc_cache