Mercurial > hg
view mercurial/scmwindows.py @ 47682:78f7f0d490ee
dirstate-v2: Move fixed-size tree metadata into the docket file
Before this changeset, the dirstate-v2 data file contained not only nodes
and paths that may be reused when appending to an existing file,
but also some fixed-size metadata that applies to the entire tree
and was added at the end of the data file for every append.
This moves that metadata into the docket file, so that repeated "append"
operations without meaningful changes don’t actually need to grow any file.
Differential Revision: https://phab.mercurial-scm.org/D11098
author | Simon Sapin <simon.sapin@octobus.net> |
---|---|
date | Thu, 15 Jul 2021 23:02:17 +0200 |
parents | 224af78021de |
children | 6000f5b25c9b |
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from __future__ import absolute_import import os from . import ( encoding, pycompat, util, win32, ) try: import _winreg as winreg # pytype: disable=import-error winreg.CloseKey except ImportError: # py2 only import winreg # pytype: disable=import-error # MS-DOS 'more' is the only pager available by default on Windows. fallbackpager = b'more' def systemrcpath(): '''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): 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( b'SOFTWARE\\Mercurial', None, winreg.HKEY_LOCAL_MACHINE ) 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(): '''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): """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): return win32.termsize()