Mercurial > hg
view hgext/fsmonitor/state.py @ 50821:28c0fcff24e5 stable
rhg: fix the bug where sparse config is interpreted as relglob instead of glob
relglob apparently (in contrast with relpath) matches everywhere in the tree,
whereas glob only matches at the root.
The python version interprets these patterns as "glob" (see
"normalize(include, b'glob', ...)" in match.py)
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
---|---|
date | Thu, 10 Aug 2023 19:00:19 +0100 |
parents | 2e726c934fcd |
children | f4733654f144 |
line wrap: on
line source
# state.py - fsmonitor persistent state # # Copyright 2013-2016 Facebook, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import errno import os import socket import struct from mercurial.i18n import _ from mercurial import ( encoding, pathutil, util, ) _version = 4 _versionformat = b">I" class state: def __init__(self, repo): self._vfs = repo.vfs self._ui = repo.ui self._rootdir = pathutil.normasprefix(repo.root) self._lastclock = None self._identity = util.filestat(None) self.mode = self._ui.config(b'fsmonitor', b'mode') self.walk_on_invalidate = self._ui.configbool( b'fsmonitor', b'walk_on_invalidate' ) self.timeout = float(self._ui.config(b'fsmonitor', b'timeout')) def get(self): try: file = self._vfs(b'fsmonitor.state', b'rb') except IOError as inst: self._identity = util.filestat(None) if inst.errno != errno.ENOENT: raise return None, None, None self._identity = util.filestat.fromfp(file) versionbytes = file.read(4) if len(versionbytes) < 4: self._ui.log( b'fsmonitor', b'fsmonitor: state file only has %d bytes, ' b'nuking state\n' % len(versionbytes), ) self.invalidate() return None, None, None try: diskversion = struct.unpack(_versionformat, versionbytes)[0] if diskversion != _version: # different version, nuke state and start over self._ui.log( b'fsmonitor', b'fsmonitor: version switch from %d to ' b'%d, nuking state\n' % (diskversion, _version), ) self.invalidate() return None, None, None state = file.read().split(b'\0') # state = hostname\0clock\0ignorehash\0 + list of files, each # followed by a \0 if len(state) < 3: self._ui.log( b'fsmonitor', b'fsmonitor: state file truncated (expected ' b'3 chunks, found %d), nuking state\n', len(state), ) self.invalidate() return None, None, None diskhostname = state[0] hostname = encoding.strtolocal(socket.gethostname()) if diskhostname != hostname: # file got moved to a different host self._ui.log( b'fsmonitor', b'fsmonitor: stored hostname "%s" ' b'different from current "%s", nuking state\n' % (diskhostname, hostname), ) self.invalidate() return None, None, None clock = state[1] ignorehash = state[2] # discard the value after the last \0 notefiles = state[3:-1] finally: file.close() return clock, ignorehash, notefiles def set(self, clock, ignorehash, notefiles): if clock is None: self.invalidate() return # Read the identity from the file on disk rather than from the open file # pointer below, because the latter is actually a brand new file. identity = util.filestat.frompath(self._vfs.join(b'fsmonitor.state')) if identity != self._identity: self._ui.debug( b'skip updating fsmonitor.state: identity mismatch\n' ) return try: file = self._vfs( b'fsmonitor.state', b'wb', atomictemp=True, checkambig=True ) except (IOError, OSError): self._ui.warn(_(b"warning: unable to write out fsmonitor state\n")) return with file: file.write(struct.pack(_versionformat, _version)) file.write(encoding.strtolocal(socket.gethostname()) + b'\0') file.write(clock + b'\0') file.write(ignorehash + b'\0') if notefiles: file.write(b'\0'.join(notefiles)) file.write(b'\0') def invalidate(self): try: os.unlink(os.path.join(self._rootdir, b'.hg', b'fsmonitor.state')) except FileNotFoundError: pass self._identity = util.filestat(None) def setlastclock(self, clock): self._lastclock = clock def getlastclock(self): return self._lastclock