outgoing: add a simple fastpath when there is no common
This further speed up case like `hg bundle --all` for larger repository.
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.command.bundle
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.revs = all
# benchmark.variants.type = none-streamv2
before: 316.749699
after: 311.165461 (-1.76%, -5.58)
There is further work to be done in this area like not doing any outgoing
computation in the stream case for example. however the recent changes already
gives use a large win for a small amount of local work.
### benchmark.name = hg.command.bundle
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.revs = all
# benchmark.variants.type = none-streamv2
## data-env-vars.name = mercurial-public-2024-03-22-zstd-sparse-revlog
pre-%ln-change: 1.263859
the-%ln-change: 0.700229 (-44.60%, -0.56)
prev-changeset: 0.496050 (-60.75%, -0.77)
this-changeset: 0.495243 (-60.81%, -0.77)
## data-env-vars.name = tryton-public-2024-03-22-zstd-sparse-revlog
pre-%ln-change: 2.975765
the-%ln-change: 1.870798 (-37.13%, -1.10)
prev-changeset: 1.461583 (-50.88%, -1.51)
this-changeset: 1.469185 (-50.63%, -1.51)
## data-env-vars.name = pypy-2024-03-22-zstd-sparse-revlog
pre-%ln-change: 4.540080
the-%ln-change: 3.401700 (-25.07%, -1.14)
prev-changeset: 2.915810 (-35.78%, -1.62)
this-changeset: 2.911643 (-35.87%, -1.63)
## data-env-vars.name = heptapod-public-2024-03-25-zstd-sparse-revlog
pre-%ln-change: 10.138396
the-%ln-change: 7.750458 (-23.55%, -2.39)
prev-changeset: 6.665565 (-34.25%, -3.47)
this-changeset: 6.672078 (-34.19%, -3.47)
## data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
pre-%ln-change: 399.484481
the-%ln-change: 346.508952 (-13.26%, -52.98)
prev-changeset: 316.749699 (-20.71%, -82.73)
this-changeset: 311.165461 (-22.11%, -88.32)
import os
import winreg # pytype: disable=import-error
from typing import (
List,
TYPE_CHECKING,
Tuple,
)
from . import (
encoding,
pycompat,
util,
win32,
)
if TYPE_CHECKING:
from . import ui as uimod
# MS-DOS 'more' is the only pager available by default on Windows.
fallbackpager = b'more'
def systemrcpath() -> List[bytes]:
'''return default os-specific hgrc search path'''
rcpath = []
filename = win32.executablepath()
# Use mercurial.ini found in directory with hg.exe
progrc = os.path.join(os.path.dirname(filename), b'mercurial.ini')
rcpath.append(progrc)
def _processdir(progrcd: bytes) -> None:
if os.path.isdir(progrcd):
for f, kind in sorted(util.listdir(progrcd)):
if f.endswith(b'.rc'):
rcpath.append(os.path.join(progrcd, f))
# Use hgrc.d found in directory with hg.exe
_processdir(os.path.join(os.path.dirname(filename), b'hgrc.d'))
# treat a PROGRAMDATA directory as equivalent to /etc/mercurial
programdata = encoding.environ.get(b'PROGRAMDATA')
if programdata:
programdata = os.path.join(programdata, b'Mercurial')
_processdir(os.path.join(programdata, b'hgrc.d'))
ini = os.path.join(programdata, b'mercurial.ini')
if os.path.isfile(ini):
rcpath.append(ini)
ini = os.path.join(programdata, b'hgrc')
if os.path.isfile(ini):
rcpath.append(ini)
# next look for a system rcpath in the registry
value = util.lookupreg(
# pytype: disable=module-attr
b'SOFTWARE\\Mercurial',
None,
winreg.HKEY_LOCAL_MACHINE
# pytype: enable=module-attr
)
if value and isinstance(value, bytes):
value = util.localpath(value)
for p in value.split(pycompat.ospathsep):
if p.lower().endswith(b'mercurial.ini'):
rcpath.append(p)
else:
_processdir(p)
return rcpath
def userrcpath() -> List[bytes]:
'''return os-specific hgrc search path to the user dir'''
home = _legacy_expanduser(b'~')
path = [os.path.join(home, b'mercurial.ini'), os.path.join(home, b'.hgrc')]
userprofile = encoding.environ.get(b'USERPROFILE')
if userprofile and userprofile != home:
path.append(os.path.join(userprofile, b'mercurial.ini'))
path.append(os.path.join(userprofile, b'.hgrc'))
return path
def _legacy_expanduser(path: bytes) -> bytes:
"""Expand ~ and ~user constructs in the pre 3.8 style"""
# Python 3.8+ changed the expansion of '~' from HOME to USERPROFILE. See
# https://bugs.python.org/issue36264. It also seems to capitalize the drive
# letter, as though it was processed through os.path.realpath().
if not path.startswith(b'~'):
return path
i, n = 1, len(path)
while i < n and path[i] not in b'\\/':
i += 1
if b'HOME' in encoding.environ:
userhome = encoding.environ[b'HOME']
elif b'USERPROFILE' in encoding.environ:
userhome = encoding.environ[b'USERPROFILE']
elif b'HOMEPATH' not in encoding.environ:
return path
else:
try:
drive = encoding.environ[b'HOMEDRIVE']
except KeyError:
drive = b''
userhome = os.path.join(drive, encoding.environ[b'HOMEPATH'])
if i != 1: # ~user
userhome = os.path.join(os.path.dirname(userhome), path[1:i])
return userhome + path[i:]
def termsize(ui: "uimod.ui") -> Tuple[int, int]:
return win32.termsize()