Mercurial > hg
view hgext/blackbox.py @ 28205:53f42c8d5f71
verify: show progress while verifying dirlogs
In repos with treemanifests, the non-root-directory dirlogs often have
many more total revisions than the root manifest log has. This change
adds progress out to that part of 'hg verify'. Since the verification
is recursive along the directory tree, we don't know how many total
revisions there are at the beginning of the command, so instead we
report progress in units of directories, much like we report progress
for verification of files today.
I'm not very happy with passing both 'storefiles' and 'progress' into
the recursive calls. I tried passing in just a 'visitdir(dir)'
callback, but the results did not seem better overall. I'm happy to
update if anyone has better ideas.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Thu, 11 Feb 2016 15:38:56 -0800 |
parents | 8113c88b8e6d |
children | 45313f5a3a8c |
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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 = * [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 import ( cmdutil, util, ) cmdtable = {} command = cmdutil.command(cmdtable) # Note for extension authors: ONLY specify testedwith = 'internal' 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 = 'internal' lastblackbox = None def wrapui(ui): class blackboxui(ui.__class__): @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 = self._bbvfs('blackbox.log', 'a') maxsize = self.configbytes('blackbox', 'maxsize', 1048576) if maxsize > 0: st = self._bbvfs.fstat(fp) if st.st_size >= maxsize: path = fp.name fp.close() 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 = self._bbvfs('blackbox.log', 'a') return fp def log(self, event, *msg, **opts): global lastblackbox super(blackboxui, self).log(event, *msg, **opts) if not '*' in self.track and not event in self.track: return if util.safehasattr(self, '_blackbox'): blackbox = self._blackbox elif util.safehasattr(self, '_bbvfs'): try: self._blackbox = self._openlogfile() except (IOError, OSError) as err: self.debug('warning: cannot write to blackbox.log: %s\n' % err.strerror) del self._bbvfs self._blackbox = None blackbox = self._blackbox else: # certain ui instances exist outside the context of # a repo, so just default to the last blackbox that # was seen. blackbox = lastblackbox if blackbox: date = util.datestr(None, '%Y/%m/%d %H:%M:%S') user = util.getuser() pid = str(util.getpid()) formattedmsg = msg[0] % msg[1:] try: blackbox.write('%s %s (%s)> %s' % (date, user, pid, formattedmsg)) blackbox.flush() except IOError as err: self.debug('warning: cannot write to blackbox.log: %s\n' % err.strerror) lastblackbox = blackbox def setrepo(self, repo): self._bbvfs = repo.vfs ui.__class__ = 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') blackbox = repo.vfs('blackbox.log', 'r') lines = blackbox.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)))