Mercurial > hg
view mercurial/statichttprepo.py @ 24553:afc29e29d569
dirstate: fix order of initializing nf vs f
Result of a bad merge.
author | Siddharth Agarwal <sid0@fb.com> |
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date | Tue, 31 Mar 2015 15:41:02 -0700 |
parents | 656f93ce66d5 |
children | 7a1af58ab242 |
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# statichttprepo.py - simple http repository class for mercurial # # This provides read-only repo access to repositories exported via static http # # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from i18n import _ import changelog, byterange, url, error, namespaces import localrepo, manifest, util, scmutil, store import urllib, urllib2, errno, os class httprangereader(object): def __init__(self, url, opener): # we assume opener has HTTPRangeHandler self.url = url self.pos = 0 self.opener = opener self.name = url def seek(self, pos): self.pos = pos def read(self, bytes=None): req = urllib2.Request(self.url) end = '' if bytes: end = self.pos + bytes - 1 if self.pos or end: req.add_header('Range', 'bytes=%d-%s' % (self.pos, end)) try: f = self.opener.open(req) data = f.read() # Python 2.6+ defines a getcode() function, and 2.4 and # 2.5 appear to always have an undocumented code attribute # set. If we can't read either of those, fall back to 206 # and hope for the best. code = getattr(f, 'getcode', lambda : getattr(f, 'code', 206))() except urllib2.HTTPError, inst: num = inst.code == 404 and errno.ENOENT or None raise IOError(num, inst) except urllib2.URLError, inst: raise IOError(None, inst.reason[1]) if code == 200: # HTTPRangeHandler does nothing if remote does not support # Range headers and returns the full entity. Let's slice it. if bytes: data = data[self.pos:self.pos + bytes] else: data = data[self.pos:] elif bytes: data = data[:bytes] self.pos += len(data) return data def readlines(self): return self.read().splitlines(True) def __iter__(self): return iter(self.readlines()) def close(self): pass def build_opener(ui, authinfo): # urllib cannot handle URLs with embedded user or passwd urlopener = url.opener(ui, authinfo) urlopener.add_handler(byterange.HTTPRangeHandler()) class statichttpvfs(scmutil.abstractvfs): def __init__(self, base): self.base = base def __call__(self, path, mode='r', *args, **kw): if mode not in ('r', 'rb'): raise IOError('Permission denied') f = "/".join((self.base, urllib.quote(path))) return httprangereader(f, urlopener) def join(self, path): if path: return os.path.join(self.base, path) else: return self.base return statichttpvfs class statichttppeer(localrepo.localpeer): def local(self): return None def canpush(self): return False class statichttprepository(localrepo.localrepository): supported = localrepo.localrepository._basesupported def __init__(self, ui, path): self._url = path self.ui = ui self.root = path u = util.url(path.rstrip('/') + "/.hg") self.path, authinfo = u.authinfo() opener = build_opener(ui, authinfo) self.opener = opener(self.path) self.vfs = self.opener self._phasedefaults = [] self.names = namespaces.namespaces() try: requirements = scmutil.readrequires(self.vfs, self.supported) except IOError, inst: if inst.errno != errno.ENOENT: raise requirements = set() # check if it is a non-empty old-style repository try: fp = self.vfs("00changelog.i") fp.read(1) fp.close() except IOError, inst: if inst.errno != errno.ENOENT: raise # we do not care about empty old-style repositories here msg = _("'%s' does not appear to be an hg repository") % path raise error.RepoError(msg) # setup store self.store = store.store(requirements, self.path, opener) self.spath = self.store.path self.svfs = self.store.opener self.sopener = self.svfs self.sjoin = self.store.join self._filecache = {} self.requirements = requirements self.manifest = manifest.manifest(self.svfs) self.changelog = changelog.changelog(self.svfs) self._tags = None self.nodetagscache = None self._branchcaches = {} self._revbranchcache = None self.encodepats = None self.decodepats = None self._transref = None def _restrictcapabilities(self, caps): caps = super(statichttprepository, self)._restrictcapabilities(caps) return caps.difference(["pushkey"]) def url(self): return self._url def local(self): return False def peer(self): return statichttppeer(self) def lock(self, wait=True): raise util.Abort(_('cannot lock static-http repository')) def instance(ui, path, create): if create: raise util.Abort(_('cannot create new static-http repository')) return statichttprepository(ui, path[7:])