Mercurial > hg
view hgext/blackbox.py @ 32267:c2380b448265
caches: move the 'updating the branch cache' message in 'updatecaches'
We are about to remove the branchmap cache update in changegroup application.
There is a debug message alongside this update that we do not want to loose. We
move the message beforehand to simplify the test update in the next changeset.
The message move is quite noisy and isolating that noise is useful.
Most tests update are just line reordering since the message is issued at a
later point during the transaction.
After this changes, the message is displayed in more case since local commit
creation also issue it.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Tue, 02 May 2017 22:27:44 +0200 |
parents | 055cca8e167b |
children | 46ba2cdda476 |
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# blackbox.py - log repository events to a file for post-mortem debugging # # 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. """log repository events to a blackbox for debugging Logs event information to .hg/blackbox.log to help debug and diagnose problems. The events that get logged can be configured via the blackbox.track config key. Examples:: [blackbox] track = * # dirty is *EXPENSIVE* (slow); # each log entry indicates `+` if the repository is dirty, like :hg:`id`. dirty = True # record the source of log messages logsource = True [blackbox] track = command, commandfinish, commandexception, exthook, pythonhook [blackbox] track = incoming [blackbox] # limit the size of a log file maxsize = 1.5 MB # rotate up to N log files when the current one gets too big maxfiles = 3 """ from __future__ import absolute_import import errno import re from mercurial.i18n import _ from mercurial.node import hex from mercurial import ( cmdutil, ui as uimod, util, ) cmdtable = {} command = cmdutil.command(cmdtable) # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # be specifying the version(s) of Mercurial they are tested with, or # leave the attribute unspecified. testedwith = 'ships-with-hg-core' lastui = None filehandles = {} def _openlog(vfs): path = vfs.join('blackbox.log') if path in filehandles: return filehandles[path] filehandles[path] = fp = vfs('blackbox.log', 'a') return fp def _closelog(vfs): path = vfs.join('blackbox.log') fp = filehandles[path] del filehandles[path] fp.close() def wrapui(ui): class blackboxui(ui.__class__): def __init__(self, src=None): super(blackboxui, self).__init__(src) if src is None: self._partialinit() else: self._bbfp = getattr(src, '_bbfp', None) self._bbinlog = False self._bbrepo = getattr(src, '_bbrepo', None) self._bbvfs = getattr(src, '_bbvfs', None) def _partialinit(self): if util.safehasattr(self, '_bbvfs'): return self._bbfp = None self._bbinlog = False self._bbrepo = None self._bbvfs = None def copy(self): self._partialinit() return self.__class__(self) @util.propertycache def track(self): return self.configlist('blackbox', 'track', ['*']) def _openlogfile(self): def rotate(oldpath, newpath): try: self._bbvfs.unlink(newpath) except OSError as err: if err.errno != errno.ENOENT: self.debug("warning: cannot remove '%s': %s\n" % (newpath, err.strerror)) try: if newpath: self._bbvfs.rename(oldpath, newpath) except OSError as err: if err.errno != errno.ENOENT: self.debug("warning: cannot rename '%s' to '%s': %s\n" % (newpath, oldpath, err.strerror)) fp = _openlog(self._bbvfs) maxsize = self.configbytes('blackbox', 'maxsize', 1048576) if maxsize > 0: st = self._bbvfs.fstat(fp) if st.st_size >= maxsize: path = fp.name _closelog(self._bbvfs) maxfiles = self.configint('blackbox', 'maxfiles', 7) for i in xrange(maxfiles - 1, 1, -1): rotate(oldpath='%s.%d' % (path, i - 1), newpath='%s.%d' % (path, i)) rotate(oldpath=path, newpath=maxfiles > 0 and path + '.1') fp = _openlog(self._bbvfs) return fp def _bbwrite(self, fmt, *args): self._bbfp.write(fmt % args) self._bbfp.flush() def log(self, event, *msg, **opts): global lastui super(blackboxui, self).log(event, *msg, **opts) self._partialinit() if not '*' in self.track and not event in self.track: return if self._bbfp: ui = self elif self._bbvfs: try: self._bbfp = self._openlogfile() except (IOError, OSError) as err: self.debug('warning: cannot write to blackbox.log: %s\n' % err.strerror) del self._bbvfs self._bbfp = None ui = self else: # certain ui instances exist outside the context of # a repo, so just default to the last blackbox that # was seen. ui = lastui if not ui or not ui._bbfp: return if not lastui or ui._bbrepo: lastui = ui if ui._bbinlog: # recursion guard return try: ui._bbinlog = True date = util.datestr(None, '%Y/%m/%d %H:%M:%S') user = util.getuser() pid = '%d' % util.getpid() formattedmsg = msg[0] % msg[1:] rev = '(unknown)' changed = '' if ui._bbrepo: ctx = ui._bbrepo[None] parents = ctx.parents() rev = ('+'.join([hex(p.node()) for p in parents])) if (ui.configbool('blackbox', 'dirty', False) and ( any(ui._bbrepo.status()) or any(ctx.sub(s).dirty() for s in ctx.substate) )): changed = '+' if ui.configbool('blackbox', 'logsource', False): src = ' [%s]' % event else: src = '' try: ui._bbwrite('%s %s @%s%s (%s)%s> %s', date, user, rev, changed, pid, src, formattedmsg) except IOError as err: self.debug('warning: cannot write to blackbox.log: %s\n' % err.strerror) finally: ui._bbinlog = False def setrepo(self, repo): self._bbfp = None self._bbinlog = False self._bbrepo = repo self._bbvfs = repo.vfs ui.__class__ = blackboxui uimod.ui = blackboxui def uisetup(ui): wrapui(ui) def reposetup(ui, repo): # During 'hg pull' a httppeer repo is created to represent the remote repo. # It doesn't have a .hg directory to put a blackbox in, so we don't do # the blackbox setup for it. if not repo.local(): return if util.safehasattr(ui, 'setrepo'): ui.setrepo(repo) @command('^blackbox', [('l', 'limit', 10, _('the number of events to show')), ], _('hg blackbox [OPTION]...')) def blackbox(ui, repo, *revs, **opts): '''view the recent repository events ''' if not repo.vfs.exists('blackbox.log'): return limit = opts.get('limit') fp = repo.vfs('blackbox.log', 'r') lines = fp.read().split('\n') count = 0 output = [] for line in reversed(lines): if count >= limit: break # count the commands by matching lines like: 2013/01/23 19:13:36 root> if re.match('^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} .*> .*', line): count += 1 output.append(line) ui.status('\n'.join(reversed(output)))