mirror of
https://github.com/neovim/neovim.git
synced 2024-12-23 12:45:17 -07:00
110 lines
2.6 KiB
Python
Executable File
110 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
|
||
|
||
import os
|
||
import sys
|
||
import codecs
|
||
|
||
from enum import Enum
|
||
from datetime import datetime
|
||
from functools import reduce
|
||
|
||
import msgpack
|
||
|
||
|
||
class EntryTypes(Enum):
|
||
Unknown = -1
|
||
Missing = 0
|
||
Header = 1
|
||
SearchPattern = 2
|
||
SubString = 3
|
||
HistoryEntry = 4
|
||
Register = 5
|
||
Variable = 6
|
||
GlobalMark = 7
|
||
Jump = 8
|
||
BufferList = 9
|
||
LocalMark = 10
|
||
Change = 11
|
||
|
||
|
||
def strtrans_errors(e):
|
||
if not isinstance(e, UnicodeDecodeError):
|
||
raise NotImplementedError('don’t know how to handle {0} error'.format(
|
||
e.__class__.__name__))
|
||
return '<{0:x}>'.format(reduce((lambda a, b: a*0x100+b),
|
||
list(e.object[e.start:e.end]))), e.end
|
||
|
||
|
||
codecs.register_error('strtrans', strtrans_errors)
|
||
|
||
|
||
def idfunc(o):
|
||
return o
|
||
|
||
|
||
class CharInt(int):
|
||
def __repr__(self):
|
||
return super(CharInt, self).__repr__() + ' (\'%s\')' % chr(self)
|
||
|
||
|
||
ctable = {
|
||
bytes: lambda s: s.decode('utf-8', 'strtrans'),
|
||
dict: lambda d: dict((mnormalize(k), mnormalize(v)) for k, v in d.items()),
|
||
list: lambda l: list(mnormalize(i) for i in l),
|
||
int: lambda n: CharInt(n) if 0x20 <= n <= 0x7E else n,
|
||
}
|
||
|
||
|
||
def mnormalize(o):
|
||
return ctable.get(type(o), idfunc)(o)
|
||
|
||
|
||
fname = sys.argv[1]
|
||
try:
|
||
filt = sys.argv[2]
|
||
except IndexError:
|
||
def filt(entry): return True
|
||
else:
|
||
_filt = filt
|
||
def filt(entry): return eval(_filt, globals(), {'entry': entry}) # noqa
|
||
|
||
poswidth = len(str(os.stat(fname).st_size or 1000))
|
||
|
||
|
||
class FullEntry(dict):
|
||
def __init__(self, val):
|
||
self.__dict__.update(val)
|
||
|
||
|
||
with open(fname, 'rb') as fp:
|
||
unpacker = msgpack.Unpacker(file_like=fp, read_size=1)
|
||
max_type = max(typ.value for typ in EntryTypes)
|
||
while True:
|
||
try:
|
||
pos = fp.tell()
|
||
typ = unpacker.unpack()
|
||
except msgpack.OutOfData:
|
||
break
|
||
else:
|
||
timestamp = unpacker.unpack()
|
||
time = datetime.fromtimestamp(timestamp)
|
||
length = unpacker.unpack()
|
||
if typ > max_type:
|
||
entry = fp.read(length)
|
||
typ = EntryTypes.Unknown
|
||
else:
|
||
entry = unpacker.unpack()
|
||
typ = EntryTypes(typ)
|
||
full_entry = FullEntry({
|
||
'value': entry,
|
||
'timestamp': timestamp,
|
||
'time': time,
|
||
'length': length,
|
||
'pos': pos,
|
||
'type': typ,
|
||
})
|
||
if not filt(full_entry):
|
||
continue
|
||
print('%*u %13s %s %5u %r' % (
|
||
poswidth, pos, typ.name, time.isoformat(), length, mnormalize(entry)))
|