def merge_data_bsdiff(source_data, overlay_data):
if len(source_data) == 0 or len(overlay_data) == 0:
raise IOError(
"[Error] Not valid data length: %d, %d" %
(len(source_data), len(overlay_data)))
recover = bsdiff4.patch(source_data, overlay_data)
return recover
def decompress(self, rev, filename=None):
rev = int(rev)
if rev == 0:
f2 = self.unpack(open(self.base, 'rb').read())
if filename is None:
return f2
else:
x = open(filename, 'wb')
x.write(f2)
x.close()
return
if rev < 0 or rev > len(self.patches):
return False
now = len(self.patches)
f = self.unpack(open(self.base, 'rb').read())
while now >= rev:
pt = self.patches[now - 1]
f2 = open(os.path.join(os.path.dirname(self.base), pt),
'rb').read()
p = bsdiff4.patch(f, f2)
f = p
now -= 1
if filename is None:
return f
fx = open(filename, 'wb')
fx.write(f)
fx.close()
def patch(self, target: str):
"""Base + Delta -> Patched"""
if not self.delta:
self.read()
result = bsdiff4.patch(self.get_source_data_with_cache(), self.delta)
with open(target, "wb") as f:
f.write(result)
def merge_data_bsdiff(source_data, overlay_data):
if len(source_data) == 0 or len(overlay_data) == 0:
raise IOError(
"[Error] Not valid data length: %d, %d" %
(len(source_data), len(overlay_data)))
recover = bsdiff4.patch(source_data, overlay_data)
return recover
def data_for_op(op, out_file, old_file):
args.payloadfile.seek(data_offset + op.data_offset)
data = args.payloadfile.read(op.data_length)
# assert hashlib.sha256(data).digest() == op.data_sha256_hash, 'operation data hash mismatch'
if op.type == op.REPLACE_XZ:
dec = lzma.LZMADecompressor()
data = dec.decompress(data)
out_file.seek(op.dst_extents[0].start_block * block_size)
out_file.write(data)
elif op.type == op.REPLACE_BZ:
dec = bz2.BZ2Decompressor()
data = dec.decompress(data)
out_file.seek(op.dst_extents[0].start_block * block_size)
out_file.write(data)
elif op.type == op.REPLACE:
out_file.seek(op.dst_extents[0].start_block * block_size)
out_file.write(data)
elif op.type == op.SOURCE_COPY:
if not args.diff:
print("SOURCE_COPY supported only for differential OTA")
sys.exit(-2)
out_file.seek(op.dst_extents[0].start_block * block_size)
for ext in op.src_extents:
old_file.seek(ext.start_block * block_size)
data = old_file.read(ext.num_blocks * block_size)
out_file.write(data)
elif op.type == op.SOURCE_BSDIFF:
if not args.diff:
print("SOURCE_BSDIFF supported only for differential OTA")
sys.exit(-3)
out_file.seek(op.dst_extents[0].start_block * block_size)
tmp_buff = io.BytesIO()
for ext in op.src_extents:
old_file.seek(ext.start_block * block_size)
old_data = old_file.read(ext.num_blocks * block_size)
tmp_buff.write(old_data)
tmp_buff.seek(0)
old_data = tmp_buff.read()
tmp_buff.seek(0)
tmp_buff.write(bsdiff4.patch(old_data, data))
n = 0
tmp_buff.seek(0)
for ext in op.dst_extents:
tmp_buff.seek(n * block_size)
n += ext.num_blocks
data = tmp_buff.read(ext.num_blocks * block_size)
out_file.seek(ext.start_block * block_size)
out_file.write(data)
elif op.type == op.ZERO:
for ext in op.dst_extents:
out_file.seek(ext.start_block * block_size)
out_file.write('\0' * ext.num_blocks * block_size)
else:
print("Unsupported type = %d" % op.type)
sys.exit(-1)
return data
def create_rom_file(patch_file: str) -> Tuple[dict, str]:
data = Utils.parse_yaml(
lzma.decompress(load_bytes(patch_file)).decode("utf-8-sig"))
patched_data = bsdiff4.patch(get_base_rom_bytes(), data["patch"])
target = os.path.splitext(patch_file)[0] + ".sfc"
with open(target, "wb") as f:
f.write(patched_data)
return data["meta"], target
def apply_delta_B(src, delta):
"""
BSDIFF4 diff
:param src:
:param delta:
:return:
"""
return bsdiff4.patch(src, delta)
def create_rom_bytes(patch_file: str) -> Tuple[dict, str, bytearray]:
data = Utils.parse_yaml(
lzma.decompress(load_bytes(patch_file)).decode("utf-8-sig"))
patched_data = bsdiff4.patch(get_base_rom_bytes(), data["patch"])
rom_hash = patched_data[int(0x7FC0):int(0x7FD5)]
data["meta"]["hash"] = "".join(chr(x) for x in rom_hash)
target = os.path.splitext(patch_file)[0] + ".sfc"
return data["meta"], target, patched_data
def compose_patch(*li_content):
if len(li_content) == 0:
raise SystemError('compose_patch need at least one element, not 0')
elif len(li_content) == 1:
return li_content[0]
a, b, *t = li_content
return compose_patch(bsdiff4.patch(a, b), *t)
def apply_delta_B(src, delta):
# type: (six.text_type, six.binary_type) -> six.text_type
"""
BSDIFF4 diff
:param src:
:param delta:
:return:
"""
return smart_text(bsdiff4.patch(src, delta))
def get_data_from_entry(entry):
data = open(os.path.normpath(entry['_path']), "rb").read()
if entry.get('patch', None) is not None:
if entry.get('patch_format') == "bsdiff4":
import bsdiff4
data = bsdiff4.patch(data, open(entry['patch'], "rb").read())
return bytearray(data)
def _apply_patches_in_memory(self):
# Applies a sequence of patches in memory
log.debug('Applying patches')
for i in self.patch_binary_data:
try:
self.og_binary = bsdiff4.patch(self.og_binary, i)
log.debug('Applied patch successfully')
except Exception as err:
log.debug(err, exc_info=True)
raise PatcherError('Patch failed to apply')
def _apply_patches_in_memory(self):
# Applies a sequence of patches in memory
log.debug('Applying patches')
for i in self.patch_binary_data:
try:
self.og_binary = bsdiff4.patch(self.og_binary, i)
log.debug('Applied patch successfully')
except Exception as err:
log.debug(err, exc_info=True)
raise PatcherError('Patch failed to apply')
def patch(src_path, dst_path, patch_path, evt_mgr=None, super_id=None):
if evt_mgr:
from encore.events.api import ProgressManager
else:
from egginst.console import ProgressManager
x = zipfile.ZipFile(src_path)
y = zipfile.ZipFile(dst_path, 'w', zipfile.ZIP_DEFLATED)
z = zipfile.ZipFile(patch_path)
xnames = x.namelist()
znames = set(z.namelist())
n = 0
tot = len(xnames) + len(znames)
progress = ProgressManager(
evt_mgr, source=patch,
operation_id=uuid4(),
message="patching",
steps=tot,
# ---
progress_type="patching", filename=basename(patch_path),
disp_amount=str(tot),
super_id=super_id)
with progress:
for name in xnames:
if name not in znames:
y.writestr(x.getinfo(name), x.read(name))
n += 1
progress(step=n)
for name in z.namelist():
if name == '__zdiff_info__.json':
continue
zdata = z.read(name)
if zdata.startswith('BSDIFF4'):
ydata = bsdiff4.patch(x.read(name), zdata)
elif zdata.startswith('BZ'):
ydata = bz2.decompress(zdata)
elif zdata.startswith('RM'):
continue
else:
raise Exception("Hmm, didn't expect to get here: %r" % zdata)
y.writestr(name, ydata)
progress(step=n)
z.close()
y.close()
x.close()
def patch_to_file(self, mfile, start, end, patch):
""" do patch: using bsdiff to patch data
NOTE: pass the same mfile throughout can combine patch results.
@param mfile: file where patch data will store.
@param start: the start pos of to-patched data.
@param end: the end pos of to-patched data.
@param patch: patch data. """
with open(self.path(), 'rb') as file:
file.seek(start, 0)
sdata = file.read(end - start)
res = bsdiff4.patch(sdata, patch)
mfile.append_data(res)
def test_branch_conflict(self):
view = View(self.log, self.root_key)
view.build()
home_path = os.path.join(os.sep, 'home-' + utils.random_ascii())
view.mkdir(home_path)
key = Key.generate()
view.grant(home_path, 'user', key)
view = View(self.log, key)
view.build()
parent_node = view.get(home_path)
user_path = os.path.join(home_path, 'user-' + utils.random_ascii())
max_hash = None
enc_content = ''
for ix in range(12):
content = 'content-' + utils.random_ascii(32)
prev = enc_content
enc_content = bsdiff4.diff(enc_content, content)
entry = self.log.write(parent_node.entry,
user_path,
key,
attachment=enc_content)
max_hash = max(max_hash, entry.hash) if max_hash else entry.hash
view = View(self.log, self.root_key)
view.build()
self.assertEqual(
bsdiff4.patch(prev, self.log.entries[max_hash].get_content()),
view.get(user_path).content)
# Admin branch more power
admin_content = 'content-' + utils.random_ascii(32)
content = bsdiff4.diff(enc_content, admin_content)
self.log.write(parent_node.entry,
user_path,
self.root_key,
attachment=content)
view.build()
self.assertEqual(admin_content.encode(), view.get(user_path).content)
alt_content = bsdiff4.diff(content, ('content-' +
utils.random_ascii(32)).encode())
self.log.write(parent_node.entry,
user_path,
key,
attachment=alt_content)
self.assertEqual(admin_content.encode(), view.get(user_path).content)
# Grant consistency with prev state
view.grant(os.sep, 'user', key)
self.assertEqual(admin_content.encode(), view.get(user_path).content)
view.build()
self.assertEqual(admin_content.encode(), view.get(user_path).content)
# Test prints
self.log.print_tree(view=view, color=True)
self.log.print_tree(view=view, ascii=True)
def _apply_patches_in_memory(self):
# Applies a sequence of patches in memory
log.debug(u'Applying patches')
# Beginning the patch process
self.new_binary = self.og_binary
progress_signal.send(info=u'Applying Patches')
for i in self.patch_binary_data:
try:
self.new_binary = bsdiff4.patch(self.new_binary, i)
except Exception as err:
progress_signal.send(info=u'Failed to apply patches')
log.debug(err, exc_info=True)
log.error(err)
raise PatcherError(u'Patch failed to apply')
def _apply_patches_in_memory(self):
# Applies a sequence of patches in memory
log.debug(u'Applying patches')
# Beginning the patch process
self.new_binary = self.og_binary
progress_signal.send(info=u'Applying Patches')
for i in self.patch_binary_data:
try:
self.new_binary = bsdiff4.patch(self.new_binary, i)
except Exception as err:
progress_signal.send(info=u'Failed to apply patches')
log.debug(err, exc_info=True)
log.error(err)
raise PatcherError(u'Patch failed to apply')
def create_rom_bytes(
patch_file: str,
ignore_version: bool = False) -> Tuple[dict, str, bytearray]:
data = Utils.parse_yaml(
lzma.decompress(load_bytes(patch_file)).decode("utf-8-sig"))
if not ignore_version and data[
"compatible_version"] > current_patch_version:
raise RuntimeError(
"Patch file is incompatible with this patcher, likely an update is required."
)
patched_data = bsdiff4.patch(get_base_rom_bytes(), data["patch"])
rom_hash = patched_data[int(0x7FC0):int(0x7FD5)]
data["meta"]["hash"] = "".join(chr(x) for x in rom_hash)
target = os.path.splitext(patch_file)[0] + ".sfc"
return data["meta"], target, patched_data
def doPatch(self, patch, urls):
patchContents = self.downloadPatch(patch, urls)
if not patchContents:
raise Exception('Error in procuring patch')
oldContents = self.getContents()
patchedContents = bsdiff4.patch(oldContents, patchContents)
del oldContents
del patchContents
if self.hash != self.__hash(patchedContents):
raise Exception('In-memory patch did not have correct hash after patching! Patching failed!')
fileHandle = self._getFile('wb')
fileHandle.write(patchedContents)
fileHandle.close()
del patchedContents
return True
def _get_doc_rev(doc_path, revision = "latest"): revision == "latest" or __class__._check_doc_rev_exists(doc_path / revision) all_revisions = sorted(doc_path.iterdir(), key = lambda e: _get_mtime(e.stat())) content = None rev_path = None for path in all_revisions: rev_path = path patch = path.read_bytes() content = bsdiff4.patch(content, patch) if content else patch if path.name == revision: break if rev_path is None: return None, None return rev_path, content
def patch(src_path, dst_path, patch_path):
x = zipfile.ZipFile(src_path)
y = zipfile.ZipFile(dst_path, 'w', zipfile.ZIP_DEFLATED)
z = zipfile.ZipFile(patch_path)
xnames = x.namelist()
znames = set(z.namelist())
n = 0
tot = len(xnames) + len(znames)
getLogger('progress.start').info(dict(
amount = tot,
disp_amount = str(tot),
filename = basename(patch_path),
action = 'patching'))
for name in xnames:
if name not in znames:
y.writestr(x.getinfo(name), x.read(name))
n += 1
getLogger('progress.update').info(n)
for name in z.namelist():
if name == '__zdiff_info__.json':
continue
zdata = z.read(name)
if zdata.startswith('BSDIFF4'):
ydata = bsdiff4.patch(x.read(name), zdata)
elif zdata.startswith('BZ'):
ydata = bz2.decompress(zdata)
elif zdata.startswith('RM'):
continue
else:
raise Exception("Hmm, didn't expect to get here: %r" % zdata)
y.writestr(name, ydata)
getLogger('progress.update').info(n)
getLogger('progress.stop').info(None)
z.close()
y.close()
x.close()
def main(input_file, output_file):
"""Patches default firmware to allow reading of any address in memory."""
with open(input_file, 'rb') as file:
contents = file.read()
with open("resources/firmware.patch", 'rb') as file:
patch = file.read()
hash = hashlib.sha1(contents).hexdigest()
if hash != '94ffc60b9127e64308b3ce1bc8b81ee11cfc2dff':
print("Invalid hash for input firmware. Aborting.")
exit(1)
patched_firmware = bsdiff4.patch(contents, patch)
with open(output_file, 'wb') as file:
file.write(patched_firmware)
print("Patching complete.")
def html_and_level(self):
if self.html_delta:
prev_html, prev_level = self.prev_update.html_and_level
result = bsdiff4.patch(
prev_html.encode(),
self.html_delta,
).decode()
elif self.html_raw:
result = self.html_raw
prev_level = 0
else:
result, prev_level = self.prev_update.html_and_level
result_checksum = hashlib.md5((result or '').encode()).hexdigest()
if result_checksum != self.html_checksum:
raise Exception(
'Update {} HTML failed verification. Expected {}, got {}.'.
format(self.id, self.html_checksum, result_checksum))
return result, prev_level + 1
def OnButton6Button(self, event):
event.Skip()
dlg = wx.FileDialog(self, 'Save patched', '.', '', '*', wx.SAVE)
try:
if dlg.ShowModal() == wx.ID_OK:
filename = dlg.GetPath()
destinationFile = open(filename,'wb')
patchFile = bsdiff4.patch(bytes(patchOriginalBytes),patchFilePatch)
destinationFile.write(patchFile)
destinationFile.close()
finally:
dlg.Destroy()
ok_dlg = wx.MessageDialog (self, u'Completed!!',
u'Completed',
wx.OK | wx.ICON_INFORMATION
)
ok_dlg.ShowModal ()
ok_dlg.Destroy ()
def doPatch(self, patch, urls):
# First download the patch
patchContents = self.downloadPatch(patch, urls)
if not patchContents:
raise Exception('Error in procuring patch')
# Then prepare to do the patch
oldContents = self.getContents()
# Now do the lib stuff
patchedContents = bsdiff4.patch(oldContents, patchContents)
# Delete the old and patch contents to conserve memory, as they can be large with big files
del oldContents
del patchContents
# Alright, what's the hash, broseph? Is it good?
if self.hash != self.__hash(patchedContents):
# Oh, that's not good...
raise Exception('In-memory patch did not have correct hash after patching! Patching failed!')
# Sweet, now write the patched contents to disk
fileHandle = self._getFile('wb')
fileHandle.write(patchedContents)
fileHandle.close()
del patchedContents
return True
def doPatch(self, patch, urls):
# First download the patch
patchContents = self.downloadPatch(patch, urls)
if not patchContents:
raise Exception('Error in procuring patch')
# Then prepare to do the patch
oldContents = self.getContents()
# Now do the lib stuff
patchedContents = bsdiff4.patch(oldContents, patchContents)
# Delete the old and patch contents to conserve memory, as they can be large with big files
del oldContents
del patchContents
# Alright, what's the hash, broseph? Is it good?
if self.hash != self.__hash(patchedContents):
# Oh, that's not good...
raise Exception('In-memory patch did not have correct hash after patching! Patching failed!')
# Sweet, now write the patched contents to disk
fileHandle = self._getFile('wb')
fileHandle.write(patchedContents)
fileHandle.close()
del patchedContents
return True
def content(self):
if not hasattr(self, '_content'):
content = b""
if self.entry.action == self.entry.WRITE:
logger.debug("Uncached BSDIFF4 of %s", self.entry.path)
ancestor = self.entry
ancestors = [ancestor]
while True:
ancestor = ancestor.parent
if ancestor is None or ancestor.action != self.entry.action:
break
ancestors.insert(0, ancestor)
for ancestor in ancestors:
ancestor_content = ancestor.get_content()
if not ancestor_content:
content = ancestor_content
else:
content = bsdiff4.patch(content, ancestor_content)
self._content = content
else:
logger.debug("Cached BSDIFF4 %s", self.entry.path)
return self._content
def test_branch_conflict(self):
view = View(self.log, self.root_key)
view.build()
home_path = os.path.join(os.sep, 'home-' + utils.random_ascii())
view.mkdir(home_path)
key = Key.generate()
view.grant(home_path, 'user', key)
view = View(self.log, key)
view.build()
parent_node = view.get(home_path)
user_path = os.path.join(home_path, 'user-' + utils.random_ascii())
max_hash = None
enc_content = ''
for ix in range(12):
content = 'content-' + utils.random_ascii(32)
prev = enc_content
enc_content = bsdiff4.diff(enc_content, content)
entry = self.log.write(parent_node.entry, user_path, key, attachment=enc_content)
max_hash = max(max_hash, entry.hash) if max_hash else entry.hash
view = View(self.log, self.root_key)
view.build()
self.assertEqual(bsdiff4.patch(prev, self.log.entries[max_hash].get_content()), view.get(user_path).content)
# Admin branch more power
admin_content = 'content-' + utils.random_ascii(32)
content = bsdiff4.diff(enc_content, admin_content)
self.log.write(parent_node.entry, user_path, self.root_key, attachment=content)
view.build()
self.assertEqual(admin_content.encode(), view.get(user_path).content)
alt_content = bsdiff4.diff(content, ('content-' + utils.random_ascii(32)).encode())
self.log.write(parent_node.entry, user_path, key, attachment=alt_content)
self.assertEqual(admin_content.encode(), view.get(user_path).content)
# Grant consistency with prev state
view.grant(os.sep, 'user', key)
self.assertEqual(admin_content.encode(), view.get(user_path).content)
view.build()
self.assertEqual(admin_content.encode(), view.get(user_path).content)
# Test prints
self.log.print_tree(view=view, color=True)
self.log.print_tree(view=view, ascii=True)
def content(self):
if not hasattr(self, '_content'):
content = b""
if self.entry.action == self.entry.WRITE:
logger.debug("Uncached BSDIFF4 of %s", self.entry.path)
ancestor = self.entry
ancestors = [ancestor]
while True:
ancestor = ancestor.parent
if ancestor is None or ancestor.action != self.entry.action:
break
ancestors.insert(0, ancestor)
for ancestor in ancestors:
ancestor_content = ancestor.get_content()
if not ancestor_content:
content = ancestor_content
else:
content = bsdiff4.patch(content, ancestor_content)
self._content = content
else:
logger.debug("Cached BSDIFF4 %s", self.entry.path)
return self._content
def apply_diff(orig_file: IOIter, diff_file: IOIter, new_file: IOIter) -> None:
""" Given an original file and a diff file, write out a new file with the diff applied
:param orig_file: an IOIter object whose contents are the "original" data
:param diff_file: an IOIter object whose contents are the diff to be applied
:param new_file: an IOIter object where the new file data will be written
"""
# The outer loop reads a chunk of data at a time; the inner loop parses
# the read chunk one step at a time and applies it
diff = b''
new_writer = new_file.writer()
next(new_writer)
orig_reader = orig_file.reader()
logger.debug2('applying diff')
for diff_chunk in diff_file.reader():
diff += diff_chunk
while diff:
# try to parse the next chunk; if we can't, break out of the loop to get more data
try:
diff_len_str, remainder = diff.split(SEPARATOR, 1)
except ValueError:
break
diff_len = int(diff_len_str)
if len(remainder) < diff_len:
break
try:
orig_block = next(orig_reader)
except StopIteration:
orig_block = b''
new_writer.send(bsdiff4.patch(orig_block, remainder[:diff_len]))
diff = remainder[diff_len:]
if diff:
raise DiffParseError(f'Un-parseable diff: {diff}') # type: ignore
def round_trip(self, src, dst):
p = diff(src, dst)
#print(len(src), len(p))
dst2 = patch(src, p)
self.assertEqual(dst, dst2)
def apply_entry_diff(self, entry, path, data):
return bsdiff4.patch(data, entry.payload)
def patch(patch, reference):
"""Return an uncompressed file by applying the patch to the reference"""
return bsdiff4.patch(reference, patch)
def testPatching(args):
'''tests the db patches generating the expected databases by using the information in the provided ServerDatabase leveldb database
@param args - the namespace object we get from argparse.parse_args()
'''
lg = logging.getLogger("main")
if args.verbose:
lg.setLevel("DEBUG")
# open the ServerDatabase
sbObj = ServerDatabase(args.serverDatabasePath, lg)
latestDbHasher = hashlib.sha256()
# first find the most recent database, this is what all the other databases + the patch should equal to.
latestDbTime = sbObj[ServerDatabaseEnums.KEY_LAST_DOWNLOAD_TIME]
latestDbResult = sbObj.getWithPrefix(ServerDatabaseEnums.PREFIX_DATABASE_TIME_TO_LOCATION, [latestDbTime])
latestDbFilepath = pathlib.Path(latestDbResult)
lg.info("Latest db time is: {}".format(latestDbTime))
lg.info("Latest db is located at: {}".format(latestDbFilepath))
with open(str(latestDbFilepath), "rb") as f:
latestDbHasher.update(f.read())
latestDbHexDigest = latestDbHasher.hexdigest()
lg.info("Latest db's sha256 is {}".format(latestDbHexDigest))
# now go through every database we can find, and then get its associated patch, patch the database and see if it
# equals the latest database's hash
errorList = list()
for iterDbKey, iterDbValue in sbObj.getGeneratorWithPrefix(ServerDatabaseEnums.PREFIX_DATABASE_TIME_TO_LOCATION, [""]):
iterDbTime = iterDbKey.decode("utf-8")
iterDbTime = iterDbTime[iterDbTime.find(":")+1:]
iterDbPath = iterDbValue.decode("utf-8")
lg.info("on database version: {} ({})".format(iterDbTime, arrow.get(iterDbTime).isoformat()))
if iterDbTime == latestDbTime:
lg.info("\tSkipping database because its the same as the latest db")
continue
# get the patch between this database and the latest database
try:
iterPatchResult = sbObj.getWithPrefix(ServerDatabaseEnums.PREFIX_DB_PATCH, [iterDbTime, latestDbTime])
except KeyError:
lg.error("\tPatch entry from {} to {} doesn't exist in the ServerDatabase!".format(iterDbTime, latestDbTime))
errorList.append(iterDbTime)
continue
iterPatchPath = pathlib.Path(iterPatchResult)
if not iterPatchPath.exists():
lg.info("\tERROR: patch from {} to {} doesn't exist on disk ({})".format(iterDbTime, iterDbPath, iterPatchPath))
errorList.append(iterDbTime)
continue
# apply the patch
iterDbFile = open(str(iterDbPath), "rb")
iterPatchFile = open(str(iterPatchPath), "rb")
lg.debug("\tPatching with patchfile {}".format(iterPatchPath))
patchedDbBytes = bsdiff4.patch(iterDbFile.read(), iterPatchFile.read())
iterDbFile.close()
iterPatchFile.close()
# hash the patched db to see if it eqals the latest db's sha256
iterDbHasher = hashlib.sha256()
iterDbHasher.update(patchedDbBytes)
patchedDbHexDigest = iterDbHasher.hexdigest()
lg.debug("\t\thex digest (latest) {}".format(latestDbHexDigest))
lg.debug("\t\thex digest (patch ) {}".format(patchedDbHexDigest))
if patchedDbHexDigest == latestDbHexDigest:
lg.info("\tthey match")
else:
lg.error("\tHex digests don't match! latest({}) != patched({})".format(latestDbHexDigest, patchedDbHexDigest))
errorList.append(iterDbTime)
continue
if errorList:
lg.info("These databases had errors: {}".format(pprint.pformat(errorList)))
else:
lg.info("no errors found!")
lg.info("done")
def _merge(klass, parent_data, current_data):
return bsdiff4.patch(parent_data, current_data)
def round_trip(self, src, dst):
p = diff(src, dst)
#print(len(src), len(p))
dst2 = patch(src, p)
self.assertEqual(dst, dst2)