Mercurial > hg
view mercurial/pure/base85.py @ 21048:ca7a57464fb3
largefiles: use "summaryremotehooks" to avoid redundant outgoing check
Before this patch, "hg summary --remote --large" invokes
"findcommonoutgoing()" not only in "commands.summary()" but also in
"overrides.overridesummary()" (via "getoutgoinglfiles()"). The latter
is redundant.
This patch uses "summaryremotehooks" to avoid redundant outgoing check.
Newly introduced function "overrides.summaryremotehook()" is
registered into "summaryremotehooks" to get the result of outgoing
check in "commands.summary()".
It invokes "lfutil.getlfilestoupload()" directly with the result of
outgoing check to avoid redundant outgoing check in
"getoutgoinglfiles()".
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Wed, 16 Apr 2014 00:37:24 +0900 |
parents | 20a9d823f242 |
children | 9007f697e8ef |
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# base85.py: pure python base85 codec # # Copyright (C) 2009 Brendan Cully <brendan@kublai.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import struct _b85chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" \ "abcdefghijklmnopqrstuvwxyz!#$%&()*+-;<=>?@^_`{|}~" _b85chars2 = [(a + b) for a in _b85chars for b in _b85chars] _b85dec = {} def _mkb85dec(): for i, c in enumerate(_b85chars): _b85dec[c] = i def b85encode(text, pad=False): """encode text in base85 format""" l = len(text) r = l % 4 if r: text += '\0' * (4 - r) longs = len(text) >> 2 words = struct.unpack('>%dL' % (longs), text) out = ''.join(_b85chars[(word // 52200625) % 85] + _b85chars2[(word // 7225) % 7225] + _b85chars2[word % 7225] for word in words) if pad: return out # Trim padding olen = l % 4 if olen: olen += 1 olen += l // 4 * 5 return out[:olen] def b85decode(text): """decode base85-encoded text""" if not _b85dec: _mkb85dec() l = len(text) out = [] for i in range(0, len(text), 5): chunk = text[i:i + 5] acc = 0 for j, c in enumerate(chunk): try: acc = acc * 85 + _b85dec[c] except KeyError: raise ValueError('bad base85 character at position %d' % (i + j)) if acc > 4294967295: raise ValueError('Base85 overflow in hunk starting at byte %d' % i) out.append(acc) # Pad final chunk if necessary cl = l % 5 if cl: acc *= 85 ** (5 - cl) if cl > 1: acc += 0xffffff >> (cl - 2) * 8 out[-1] = acc out = struct.pack('>%dL' % (len(out)), *out) if cl: out = out[:-(5 - cl)] return out