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author | Dave Cobbley <david.j.cobbley@linux.intel.com> | 2018-08-14 20:05:37 +0300 |
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committer | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2018-08-23 04:26:31 +0300 |
commit | eb8dc40360f0cfef56fb6947cc817a547d6d9bc6 (patch) | |
tree | de291a73dc37168da6370e2cf16c347d1eba9df8 /poky/bitbake/lib/bb/checksum.py | |
parent | 9c3cf826d853102535ead04cebc2d6023eff3032 (diff) | |
download | openbmc-eb8dc40360f0cfef56fb6947cc817a547d6d9bc6.tar.xz |
[Subtree] Removing import-layers directory
As part of the move to subtrees, need to bring all the import layers
content to the top level.
Change-Id: I4a163d10898cbc6e11c27f776f60e1a470049d8f
Signed-off-by: Dave Cobbley <david.j.cobbley@linux.intel.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'poky/bitbake/lib/bb/checksum.py')
-rw-r--r-- | poky/bitbake/lib/bb/checksum.py | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/poky/bitbake/lib/bb/checksum.py b/poky/bitbake/lib/bb/checksum.py new file mode 100644 index 0000000000..84289208f4 --- /dev/null +++ b/poky/bitbake/lib/bb/checksum.py @@ -0,0 +1,134 @@ +# Local file checksum cache implementation +# +# Copyright (C) 2012 Intel Corporation +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +import glob +import operator +import os +import stat +import pickle +import bb.utils +import logging +from bb.cache import MultiProcessCache + +logger = logging.getLogger("BitBake.Cache") + +# mtime cache (non-persistent) +# based upon the assumption that files do not change during bitbake run +class FileMtimeCache(object): + cache = {} + + def cached_mtime(self, f): + if f not in self.cache: + self.cache[f] = os.stat(f)[stat.ST_MTIME] + return self.cache[f] + + def cached_mtime_noerror(self, f): + if f not in self.cache: + try: + self.cache[f] = os.stat(f)[stat.ST_MTIME] + except OSError: + return 0 + return self.cache[f] + + def update_mtime(self, f): + self.cache[f] = os.stat(f)[stat.ST_MTIME] + return self.cache[f] + + def clear(self): + self.cache.clear() + +# Checksum + mtime cache (persistent) +class FileChecksumCache(MultiProcessCache): + cache_file_name = "local_file_checksum_cache.dat" + CACHE_VERSION = 1 + + def __init__(self): + self.mtime_cache = FileMtimeCache() + MultiProcessCache.__init__(self) + + def get_checksum(self, f): + entry = self.cachedata[0].get(f) + cmtime = self.mtime_cache.cached_mtime(f) + if entry: + (mtime, hashval) = entry + if cmtime == mtime: + return hashval + else: + bb.debug(2, "file %s changed mtime, recompute checksum" % f) + + hashval = bb.utils.md5_file(f) + self.cachedata_extras[0][f] = (cmtime, hashval) + return hashval + + def merge_data(self, source, dest): + for h in source[0]: + if h in dest: + (smtime, _) = source[0][h] + (dmtime, _) = dest[0][h] + if smtime > dmtime: + dest[0][h] = source[0][h] + else: + dest[0][h] = source[0][h] + + def get_checksums(self, filelist, pn): + """Get checksums for a list of files""" + + def checksum_file(f): + try: + checksum = self.get_checksum(f) + except OSError as e: + bb.warn("Unable to get checksum for %s SRC_URI entry %s: %s" % (pn, os.path.basename(f), e)) + return None + return checksum + + def checksum_dir(pth): + # Handle directories recursively + dirchecksums = [] + for root, dirs, files in os.walk(pth): + for name in files: + fullpth = os.path.join(root, name) + checksum = checksum_file(fullpth) + if checksum: + dirchecksums.append((fullpth, checksum)) + return dirchecksums + + checksums = [] + for pth in filelist.split(): + exist = pth.split(":")[1] + if exist == "False": + continue + pth = pth.split(":")[0] + if '*' in pth: + # Handle globs + for f in glob.glob(pth): + if os.path.isdir(f): + if not os.path.islink(f): + checksums.extend(checksum_dir(f)) + else: + checksum = checksum_file(f) + if checksum: + checksums.append((f, checksum)) + elif os.path.isdir(pth): + if not os.path.islink(pth): + checksums.extend(checksum_dir(pth)) + else: + checksum = checksum_file(pth) + if checksum: + checksums.append((pth, checksum)) + + checksums.sort(key=operator.itemgetter(1)) + return checksums |