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httprepo: long arguments support (issue2126)...
httprepo: long arguments support (issue2126) Send the command arguments in the HTTP headers. The command is still part of the URL. If the server does not have the 'httpheader' capability, the client will send the command arguments in the URL as it did previously. Web servers typically allow more data to be placed within the headers than in the URL, so this approach will: - Avoid HTTP errors due to using a URL that is too large. - Allow Mercurial to implement a more efficient wire protocol. An alternate approach is to send the arguments as part of the request body. This approach has been rejected because it requires the use of POST requests, so it would break any existing configuration that relies on the request type for authentication or caching. Extensibility: - The header size is provided by the server, which makes it possible to introduce an hgrc setting for it. - The client ignores the capability value after the first comma, which allows more information to be included in the future.

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parsers.py
88 lines | 2.2 KiB | text/x-python | PythonLexer
Martin Geisler
pure Python implementation of parsers.c
r7700 # parsers.py - Python implementation of parsers.c
#
# Copyright 2009 Matt Mackall <mpm@selenic.com> and others
#
Martin Geisler
updated license to be explicit about GPL version 2
r8225 # This software may be used and distributed according to the terms of the
Matt Mackall
Update license to GPLv2+
r10263 # GNU General Public License version 2 or any later version.
Martin Geisler
pure Python implementation of parsers.c
r7700
Alexander Solovyov
remove unused imports and variables
r14064 from mercurial.node import bin, nullid
Matt Mackall
pure/parsers: fix circular imports, import mercurial modules properly
r7945 from mercurial import util
import struct, zlib
Martin Geisler
pure Python implementation of parsers.c
r7700
_pack = struct.pack
_unpack = struct.unpack
_compress = zlib.compress
_decompress = zlib.decompress
_sha = util.sha1
def parse_manifest(mfdict, fdict, lines):
for l in lines.splitlines():
f, n = l.split('\0')
if len(n) > 40:
fdict[f] = n[40:]
mfdict[f] = bin(n[:40])
else:
mfdict[f] = bin(n)
Matt Mackall
pure: update index parsing
r13261 def parse_index2(data, inline):
Matt Mackall
pure/parsers: fix circular imports, import mercurial modules properly
r7945 def gettype(q):
return int(q & 0xFFFF)
def offset_type(offset, type):
return long(long(offset) << 16 | type)
indexformatng = ">Qiiiiii20s12x"
Martin Geisler
pure Python implementation of parsers.c
r7700 s = struct.calcsize(indexformatng)
index = []
cache = None
n = off = 0
Matt Mackall
revlog: remove lazy index
r13253
Martin Geisler
pure Python implementation of parsers.c
r7700 l = len(data) - s
append = index.append
if inline:
cache = (0, data)
while off <= l:
e = _unpack(indexformatng, data[off:off + s])
append(e)
n += 1
if e[1] < 0:
break
off += e[1] + s
else:
while off <= l:
e = _unpack(indexformatng, data[off:off + s])
append(e)
n += 1
off += s
Wagner Bruna
pure: fix index parsing on empty repositories
r13435 if index:
e = list(index[0])
type = gettype(e[0])
e[0] = offset_type(0, type)
index[0] = tuple(e)
Martin Geisler
pure Python implementation of parsers.c
r7700
# add the magic null revision at -1
index.append((0, 0, 0, -1, -1, -1, -1, nullid))
Matt Mackall
pure: update index parsing
r13261 return index, cache
Martin Geisler
pure Python implementation of parsers.c
r7700
def parse_dirstate(dmap, copymap, st):
parents = [st[:20], st[20: 40]]
# deref fields so they will be local in loop
Matt Mackall
pure/parsers: fix circular imports, import mercurial modules properly
r7945 format = ">cllll"
e_size = struct.calcsize(format)
Martin Geisler
pure Python implementation of parsers.c
r7700 pos1 = 40
l = len(st)
# the inner loop
while pos1 < l:
pos2 = pos1 + e_size
e = _unpack(">cllll", st[pos1:pos2]) # a literal here is faster
pos1 = pos2 + e[4]
f = st[pos2:pos1]
if '\0' in f:
f, c = f.split('\0')
copymap[f] = c
dmap[f] = e[:4]
return parents