Mercurial > hgsubversion
view hgsubversion/svnrepo.py @ 919:92bd7b3678ea
Add a changegroup hook to update svn metadata
author | Brad Hall <bhall@fb.com> |
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date | Thu, 07 Jun 2012 16:29:05 -0700 |
parents | d6c47c33f6a2 |
children | 8faa91951bb1 |
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""" repository class-based interface for hgsubversion Copyright (C) 2009, Dan Villiom Podlaski Christiansen <danchr@gmail.com> See parent package for licensing. Internally, Mercurial assumes that every single repository is a localrepository subclass: pull() is called on the instance pull *to*, but not the one pulled *from*. To work around this, we create two classes: - svnremoterepo for Subversion repositories, but it doesn't really do anything. - svnlocalrepo for local repositories which handles both operations on itself -- the local, hgsubversion-enabled clone -- and the remote repository. Decorators are used to distinguish and filter these operations from others. """ import errno from mercurial import error from mercurial import util as hgutil try: from mercurial.peer import peerrepository from mercurial import httppeer except ImportError: from mercurial.repo import repository as peerrepository from mercurial import httprepo as httppeer try: from mercurial import phases phases.public # defeat demand import except ImportError: phases = None import re import util import wrappers import svnwrap import svnmeta propertycache = hgutil.propertycache class ctxctx(object): """Proxies a ctx object and ensures files is never empty.""" def __init__(self, ctx): self._ctx = ctx def files(self): return self._ctx.files() or ['.svn'] def filectx(self, path, filelog=None): if path == '.svn': raise IOError(errno.ENOENT, '.svn is a fake file') return self._ctx.filectx(path, filelog=filelog) def __getattr__(self, name): return getattr(self._ctx, name) def __getitem__(self, key): return self._ctx[key] def generate_repo_class(ui, repo): """ This function generates the local repository wrapper. """ superclass = repo.__class__ def remotesvn(fn): """ Filter for instance methods which require the first argument to be a remote Subversion repository instance. """ original = getattr(repo, fn.__name__, None) # remove when dropping support for hg < 1.6. if original is None and fn.__name__ == 'findoutgoing': return def wrapper(self, *args, **opts): capable = getattr(args[0], 'capable', lambda x: False) if capable('subversion'): return fn(self, *args, **opts) else: return original(*args, **opts) wrapper.__name__ = fn.__name__ + '_wrapper' wrapper.__doc__ = fn.__doc__ return wrapper class svnlocalrepo(superclass): def svn_commitctx(self, ctx): """Commits a ctx, but defeats manifest recycling introduced in hg 1.9.""" hash = self.commitctx(ctxctx(ctx)) if phases is not None and getattr(self, 'pushkey', False): # set phase to be public self.pushkey('phases', self[hash].hex(), str(phases.draft), str(phases.public)) return hash # TODO use newbranch to allow branch creation in Subversion? @remotesvn def push(self, remote, force=False, revs=None, newbranch=None): return wrappers.push(self, remote, force, revs) @remotesvn def pull(self, remote, heads=[], force=False): return wrappers.pull(self, remote, heads, force) @remotesvn def findoutgoing(self, remote, base=None, heads=None, force=False): return wrappers.findoutgoing(repo, remote, heads, force) def svnmeta(self, uuid=None, subdir=None): return svnmeta.SVNMeta(self, uuid, subdir) repo.__class__ = svnlocalrepo class svnremoterepo(peerrepository): """ the dumb wrapper for actual Subversion repositories """ def __init__(self, ui, path=None): self.ui = ui if path is None: path = self.ui.config('paths', 'default') if not path: raise hgutil.Abort('no Subversion URL specified') self.path = path self.capabilities = set(['lookup', 'subversion']) pws = self.ui.config('hgsubversion', 'password_stores', None) if pws is not None: # Split pws at comas and strip neighbouring whitespace (whitespace # at the beginning and end of pws has already been removed by the # config parser). self.password_stores = re.split(r'\s*,\s*', pws) else: self.password_stores = None def _capabilities(self): return self.capabilities @propertycache def svnauth(self): # DO NOT default the user to hg's getuser(). If you provide # *any* default username to Subversion, it won't use any remembered # username for the desired realm, breaking OS X Keychain support, # GNOME keyring support, and all similar tools. user = self.ui.config('hgsubversion', 'username') passwd = self.ui.config('hgsubversion', 'password') url = util.normalize_url(self.path) user, passwd, url = svnwrap.parse_url(url, user, passwd) return url, user, passwd @property def svnurl(self): return self.svn.svn_url @propertycache def svn(self): try: return svnwrap.SubversionRepo(*self.svnauth, password_stores=self.password_stores) except svnwrap.SubversionConnectionException, e: self.ui.traceback() raise hgutil.Abort(e) def url(self): return self.path def lookup(self, key): return key def cancopy(self): return False def heads(self, *args, **opts): """ Whenever this function is hit, we abort. The traceback is useful for figuring out where to intercept the functionality. """ raise hgutil.Abort('command unavailable for Subversion repositories') def pushkey(self, namespace, key, old, new): return False def listkeys(self, namespace): return {} def instance(ui, url, create): if url.startswith('http://') or url.startswith('https://'): try: # may yield a bogus 'real URL...' message return httppeer.instance(ui, url, create) except error.RepoError: ui.traceback() ui.note('(falling back to Subversion support)\n') if create: raise hgutil.Abort('cannot create new remote Subversion repository') return svnremoterepo(ui, url)