Mercurial > hg
view hgext/blackbox.py @ 19778:55ef79031009
localrepo: make supported features manageable in each repositories individually
Before this patch, all localrepositories support same features,
because supported features are managed by the class variable
"supported" of "localrepository".
For example, "largefiles" feature provided by largefiles extension is
recognized as supported, by adding the feature name to "supported" of
"localrepository".
So, commands handling multiple repositories at a time like below
misunderstand that such features are supported also in repositories
not enabling corresponded extensions:
- clone/pull from or push to localhost
- recursive execution in subrepo tree
"reposetup()" can't be used to fix this problem, because it is invoked
after checking whether supported features satisfy ones required in the
target repository.
So, this patch adds the set object named as "featuresetupfuncs" to
"localrepository" to manage hook functions to setup supported features
of each repositories.
If any functions are added to "featuresetupfuncs", they are invoked,
and information about supported features is managed in each
repositories individually.
This patch also adds checking below:
- pull from localhost: whether features supported in the local(= dst)
repository satisfies ones required in the remote(= src)
- push to localhost: whether features supported in the remote(= dst)
repository satisfies ones required in the local(= src)
Managing supported features by the class variable means that there is
no difference of supported features between each instances of
"localrepository" in the same Python process, so such checking is not
needed before this patch.
Even with this patch, if intermediate bundlefile is used as pulling
source, pulling indirectly from the remote repository, which requires
features more than ones supported in the local, can't be prevented,
because bundlefile has no information about "required features" in it.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Sat, 21 Sep 2013 21:33:29 +0900 |
parents | 6d6f148cada9 |
children | 7cc77030c557 |
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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 mercurial import util, cmdutil from mercurial.i18n import _ import errno, os, re cmdtable = {} command = cmdutil.command(cmdtable) 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: os.unlink(newpath) except OSError, err: if err.errno != errno.ENOENT: self.debug("warning: cannot remove '%s': %s\n" % (newpath, err.strerror)) try: if newpath: os.rename(oldpath, newpath) except OSError, err: if err.errno != errno.ENOENT: self.debug("warning: cannot rename '%s' to '%s': %s\n" % (newpath, oldpath, err.strerror)) fp = self._bbopener('blackbox.log', 'a') maxsize = self.configbytes('blackbox', 'maxsize', 1048576) if maxsize > 0: st = os.fstat(fp.fileno()) 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._bbopener('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, '_bbopener'): try: self._blackbox = self._openlogfile() except (IOError, OSError), err: self.debug('warning: cannot write to blackbox.log: %s\n' % err.strerror) del self._bbopener 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() formattedmsg = msg[0] % msg[1:] try: blackbox.write('%s %s> %s' % (date, user, formattedmsg)) except IOError, err: self.debug('warning: cannot write to blackbox.log: %s\n' % err.strerror) lastblackbox = blackbox def setrepo(self, repo): self._bbopener = repo.opener 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 os.path.exists(repo.join('blackbox.log')): return limit = opts.get('limit') blackbox = repo.opener('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)))