Mercurial > hg
view mercurial/loggingutil.py @ 46370:cad17d50736c
changelog: move branchinfo to changelogrevision
The function parses the extra dictionary after looking up the
changelogrevision. To avoid duplicated look up, it is better to provide
it as property of changelogrevision instead. Keep the function for a
release cycle as at least the topic extension depends on it.
Differential Revision: https://phab.mercurial-scm.org/D9779
author | Joerg Sonnenberger <joerg@bec.de> |
---|---|
date | Fri, 15 Jan 2021 01:30:08 +0100 |
parents | 687b865b95ad |
children | 4a6024b87dfc |
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# loggingutil.py - utility for logging events # # Copyright 2010 Nicolas Dumazet # Copyright 2013 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. from __future__ import absolute_import import errno from . import pycompat from .utils import ( dateutil, procutil, stringutil, ) def openlogfile(ui, vfs, name, maxfiles=0, maxsize=0): """Open log file in append mode, with optional rotation If maxsize > 0, the log file will be rotated up to maxfiles. """ def rotate(oldpath, newpath): try: vfs.unlink(newpath) except OSError as err: if err.errno != errno.ENOENT: ui.debug( b"warning: cannot remove '%s': %s\n" % (newpath, err.strerror) ) try: if newpath: vfs.rename(oldpath, newpath) except OSError as err: if err.errno != errno.ENOENT: ui.debug( b"warning: cannot rename '%s' to '%s': %s\n" % (newpath, oldpath, err.strerror) ) if maxsize > 0: try: st = vfs.stat(name) except OSError: pass else: if st.st_size >= maxsize: path = vfs.join(name) for i in pycompat.xrange(maxfiles - 1, 1, -1): rotate( oldpath=b'%s.%d' % (path, i - 1), newpath=b'%s.%d' % (path, i), ) rotate(oldpath=path, newpath=maxfiles > 0 and path + b'.1') return vfs(name, b'a', makeparentdirs=False) def _formatlogline(msg): date = dateutil.datestr(format=b'%Y/%m/%d %H:%M:%S') pid = procutil.getpid() return b'%s (%d)> %s' % (date, pid, msg) def _matchevent(event, tracked): return b'*' in tracked or event in tracked class filelogger(object): """Basic logger backed by physical file with optional rotation""" def __init__(self, vfs, name, tracked, maxfiles=0, maxsize=0): self._vfs = vfs self._name = name self._trackedevents = set(tracked) self._maxfiles = maxfiles self._maxsize = maxsize def tracked(self, event): return _matchevent(event, self._trackedevents) def log(self, ui, event, msg, opts): line = _formatlogline(msg) try: with openlogfile( ui, self._vfs, self._name, maxfiles=self._maxfiles, maxsize=self._maxsize, ) as fp: fp.write(line) except IOError as err: ui.debug( b'cannot write to %s: %s\n' % (self._name, stringutil.forcebytestr(err)) ) class fileobjectlogger(object): """Basic logger backed by file-like object""" def __init__(self, fp, tracked): self._fp = fp self._trackedevents = set(tracked) def tracked(self, event): return _matchevent(event, self._trackedevents) def log(self, ui, event, msg, opts): line = _formatlogline(msg) try: self._fp.write(line) self._fp.flush() except IOError as err: ui.debug( b'cannot write to %s: %s\n' % ( stringutil.forcebytestr(self._fp.name), stringutil.forcebytestr(err), ) ) class proxylogger(object): """Forward log events to another logger to be set later""" def __init__(self): self.logger = None def tracked(self, event): return self.logger is not None and self.logger.tracked(event) def log(self, ui, event, msg, opts): assert self.logger is not None self.logger.log(ui, event, msg, opts)