def move_document(path_from, path_to):
if not path_from or not path_to:
raise EmptyDocumentPath()
# Get documents paths
dir_from = os.path.join(DOCUMENT_DIR, encode_path(path_from))
dir_to = os.path.join(DOCUMENT_DIR, encode_path(path_to))
if os.path.exists(dir_to):
raise DocumentAlreadyExists()
os.rename(dir_from, dir_to)
def lock_document(path, lock_info, unlock=False, force=False):
if not path:
raise EmptyDocumentPath()
elif not lock_info[0]:
raise EmptyUserName()
# Get document directory path
dir_path = os.path.join(DOCUMENT_DIR, encode_path(path))
if not os.path.exists(dir_path):
os.makedirs(dir_path)
# Get document lock path
lock_path = os.path.join(dir_path, 'lock')
if os.path.lexists(lock_path):
current = os.readlink(lock_path).split('@')
if not force and (current[0] != lock_info[0] or current[1] != lock_info[1]):
return (current[0], datetime.utcfromtimestamp(os.lstat(lock_path).st_ctime))
os.unlink(lock_path)
# Remove directory if empty (creation aborted)
if unlock and not os.path.exists(os.path.join(dir_path, 'rev')):
os.rmdir(dir_path)
if not unlock:
os.symlink('%s@%s' % lock_info, lock_path)
return None
def get_last_revision(path):
if not path:
raise EmptyDocumentPath()
# Get document directory path
dir_path = os.path.join(DOCUMENT_DIR, encode_path(path), 'rev')
if not os.path.exists(dir_path):
return 0
return max([int(x) for x in os.listdir(dir_path) if x.isdigit()])
def append_history(path, *args):
if not path:
raise EmptyDocumentPath()
# Get document directory path
dir_path = os.path.join(DOCUMENT_DIR, encode_path(path))
# Write new history entry
args = list(args)
args.insert(0, int(time.time()))
codecs.open(os.path.join(dir_path, 'meta'), 'a', 'utf-8').write('\x00'.join([str(x) for x in args]) + '\n')
def get_file_path(path, rev=None):
if not path:
raise EmptyDocumentPath()
elif rev and not isinstance(rev, Number) and not rev.isdigit():
raise InvalidRevisionNumber(errmsg="expected digits and value is '%s'" % rev)
# Get document directory path
dir_path = os.path.join(DOCUMENT_DIR, encode_path(path))
# Set revision to document's last if not specified
if not rev:
rev = get_last_revision(path)
return os.path.join(dir_path, 'rev', str(rev))
def get_history(path, rev=None):
if not path:
raise EmptyDocumentPath()
elif rev and not isinstance(rev, Number) and not rev.isdigit():
raise InvalidRevisionNumber(errmsg="expected digits and value is '%s'" % rev)
if rev:
rev = int(rev)
# Get document directory path
dir_path = os.path.join(DOCUMENT_DIR, encode_path(path))
if not os.path.exists(dir_path):
raise DocumentNotFound()
# Get revision history
file_path = os.path.join(dir_path, 'meta')
if not os.path.exists(file_path):
return []
history = []
for line in codecs.open(file_path, 'r', 'utf-8'):
chunks = line.strip().split('\x00')
chunks[0] = datetime.utcfromtimestamp(float(chunks[0]))
chunks[1] = int(chunks[1])
if rev is None or rev == -1:
history.append(chunks)
elif chunks[1] == rev:
return chunks
history.reverse()
return history[0] if rev == -1 else history
