Mercurial > hg
view mercurial/statichttprepo.py @ 11791:00cde9bddbe4
repair: do not compress partial bundle if we do not keep it on disk
A partial bundle is created to temporarily save revisions > rev but
not descending from the node to strip, to be able to restore the
changesets after stripping the changelog.
Since this bundle is not kept after the strip operation, and is not
user-visible, it is not necessary and should be faster to avoid
compression.
author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
---|---|
date | Thu, 12 Aug 2010 16:53:23 +0900 |
parents | 245a67fe2574 |
children | aaf9968bd8b7 |
line wrap: on
line source
# 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 import localrepo, manifest, util, store import urllib, urllib2, errno 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 req.add_header('Range', 'bytes=%d-%s' % (self.pos, end)) try: f = self.opener.open(req) data = f.read() if hasattr(f, 'getcode'): # python 2.6+ code = f.getcode() elif hasattr(f, 'code'): # undocumented attribute, seems to be set in 2.4 and 2.5 code = f.code else: # Don't know how to check, hope for the best. 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 __iter__(self): return iter(self.read().splitlines(1)) 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()) def opener(base): """return a function that opens files over http""" p = base def o(path, mode="r", atomictemp=None): if 'a' in mode or 'w' in mode: raise IOError('Permission denied') f = "/".join((p, urllib.quote(path))) return httprangereader(f, urlopener) return o opener.options = {'nonlazy': 1} return opener class statichttprepository(localrepo.localrepository): def __init__(self, ui, path): self._url = path self.ui = ui self.root = path self.path, authinfo = url.getauthinfo(path.rstrip('/') + "/.hg") opener = build_opener(ui, authinfo) self.opener = opener(self.path) # find requirements try: requirements = self.opener("requires").read().splitlines() except IOError, inst: if inst.errno != errno.ENOENT: raise # check if it is a non-empty old-style repository try: self.opener("00changelog.i").read(1) 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) requirements = [] # check them for r in requirements: if r not in self.supported: raise error.RepoError(_("requirement '%s' not supported") % r) # setup store def pjoin(a, b): return a + '/' + b self.store = store.store(requirements, self.path, opener, pjoin) self.spath = self.store.path self.sopener = self.store.opener self.sjoin = self.store.join self.manifest = manifest.manifest(self.sopener) self.changelog = changelog.changelog(self.sopener) self._tags = None self.nodetagscache = None self._branchcache = None self._branchcachetip = None self.encodepats = None self.decodepats = None def url(self): return self._url def local(self): return False 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:])