mercurial/hg.py

Added ability to clone from a local repository to a (new) remote one.

Rearranged the clone command a good bit to make sure it validates that
the source does exist and that the destination doesn't before doing anything.
Before I moved the source repo check it would create the destination
repository before it verified the source existed.

Moved the responsibility for creating the destination repo root directory
entirly into the localrepo class so that local to local cloning doesn't break.
This also simplifies the code a bit since it's no longer being done in both
clone and init.

Changed the names of the 'repo' and 'other' variables to 'dest_repo' and
'src_repo' to maintain my sanity.

Passes 82/83 tests. The only failure is the version number test, which I
suspect is supposed to fail since it comes from a generated file.

# hg.py - repository classes for mercurial
#
# Copyright 2005 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

from node import *
from repo import *
from demandload import *
from i18n import gettext as _
demandload(globals(), "localrepo bundlerepo httprepo sshrepo statichttprepo")
demandload(globals(), "os util")

def bundle(ui, path):
    if path.startswith('bundle://'):
        path = path[9:]
    else:
        path = path[7:]
    s = path.split("+", 1)
    if len(s) == 1:
        repopath, bundlename = "", s[0]
    else:
        repopath, bundlename = s
    return bundlerepo.bundlerepository(ui, repopath, bundlename)

def hg(ui, path):
    ui.warn(_("hg:// syntax is deprecated, please use http:// instead\n"))
    return httprepo.httprepository(ui, path.replace("hg://", "http://"))

def local_(ui, path, create=0):
    if path.startswith('file:'):
        path = path[5:]
    return localrepo.localrepository(ui, path, create)

def ssh_(ui, path, create=0):
    return sshrepo.sshrepository(ui, path, create)

def old_http(ui, path):
    ui.warn(_("old-http:// syntax is deprecated, "
              "please use static-http:// instead\n"))
    return statichttprepo.statichttprepository(
        ui, path.replace("old-http://", "http://"))

def static_http(ui, path):
    return statichttprepo.statichttprepository(
        ui, path.replace("static-http://", "http://"))

schemes = {
    'bundle': bundle,
    'file': local_,
    'hg': hg,
    'http': lambda ui, path: httprepo.httprepository(ui, path),
    'https': lambda ui, path: httprepo.httpsrepository(ui, path),
    'old-http': old_http,
    'ssh': ssh_,
    'static-http': static_http,
    }

def repository(ui, path=None, create=0):
    if not path: path = ''
    scheme = path
    if scheme:
        c = scheme.find(':')
        scheme = c >= 0 and scheme[:c]
    try:
        ctor = schemes.get(scheme) or schemes['file']
        if create:
            return ctor(ui, path, create)
        return ctor(ui, path)
    except TypeError:
        raise util.Abort(_('cannot create new repository over "%s" protocol') %
                         scheme)