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  • Committer: Bazaar Package Importer
  • Author(s): Jelmer Vernooij
  • Date: 2008-05-12 20:25:35 UTC
  • mfrom: (1.2.2 upstream) (4.1.34 intrepid)
  • Revision ID: james.westby@ubuntu.com-20080512202535-y92gjpczwr98htxe
Tags: 1.5.0-1
New upstream release.

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cbranch.py
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# Copyright (C) 2006 Aaron Bentley
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# <aaron.bentley@utoronto.ca>
 
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# Copyright (C) 2006, 2008 Aaron Bentley
 
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# <aaron@aaronbentley.com>
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#
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#    This program is free software; you can redistribute it and/or modify
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#    it under the terms of the GNU General Public License as published by
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#    along with this program; if not, write to the Free Software
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#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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from bzrlib import ui
 
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from bzrlib.bzrdir import BzrDir
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from bzrlib.branch import Branch
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from bzrlib.builtins import cmd_branch, cmd_checkout
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from bzrlib.config import LocationConfig
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from bzrlib.errors import BzrCommandError
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from bzrlib.osutils import pathjoin, basename, abspath, getcwd
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from bzrlib.urlutils import local_path_to_url
 
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from bzrlib.errors import BzrCommandError, NoSuchFile
 
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from bzrlib.osutils import pathjoin, basename, abspath
 
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from bzrlib.transport import get_transport
 
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from bzrlib.workingtree import WorkingTree
 
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from bzrlib.urlutils import derive_to_location
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def cbranch(from_location, to_location=None, revision=None, lightweight=False):
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    from_location = from_location.rstrip('/')
 
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def cbranch(from_location, to_location=None, revision=None,
 
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            lightweight=False, files_from=None, hardlink=False):
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    if to_location is None:
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        to_location = pathjoin(getcwd(), basename(from_location))
 
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        to_location = derive_to_location(from_location)
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    config = LocationConfig(abspath(to_location))
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    b_root = config.get_user_option("cbranch_root")
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    if b_root is None:
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        raise BzrCommandError("Can't find cbranch_root in branches.conf")
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    b_loc = pathjoin(b_root, basename(to_location))
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    cmd_branch().run(from_location, b_loc, revision=revision)
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    cmd_checkout().run(b_loc, to_location, lightweight=lightweight)
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    b = Branch.open(to_location)
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    b.set_parent(local_path_to_url(from_location))
 
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    b_loc = config.get_user_option("cbranch_target")
 
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    if b_loc is None:
 
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        b_root = config.get_user_option("cbranch_root")
 
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        if b_root is None:
 
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            raise BzrCommandError("Can't find cbranch_target in"
 
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                                  " locations.conf")
 
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        b_loc = pathjoin(b_root, basename(to_location))
 
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    accelerator_tree, old_branch = BzrDir.open_tree_or_branch(from_location)
 
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    if files_from is not None:
 
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        accelerator_tree = WorkingTree.open(files_from)
 
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    if revision is None or len(revision) == 0:
 
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        revision_id = old_branch.last_revision()
 
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    elif len(revision) == 1:
 
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        revision_id = revision[0].in_history(old_branch)[1]
 
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    else:
 
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        raise BzrCommandError('At most one revision may be supplied.')
 
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    b_transport = get_transport(b_loc)
 
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    ensure_base_recursive(b_transport.clone('..'))
 
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    pb = ui.ui_factory.nested_progress_bar()
 
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    try:
 
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        pb.update('Creating branch', 0, 2)
 
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        new_branch = old_branch.bzrdir.sprout(b_loc, revision_id,
 
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            accelerator_tree=accelerator_tree).open_branch()
 
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        pb.update('Creating checkout', 1, 2)
 
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        new_branch.create_checkout(to_location, lightweight=lightweight,
 
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                                   accelerator_tree=accelerator_tree,
 
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                                   hardlink=hardlink)
 
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    finally:
 
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        pb.finished()
 
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def ensure_base_recursive(transport):
 
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    """Ensure that the transport base and any its parents exist"""
 
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    pending_transports = [transport]
 
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    while len(pending_transports) > 0:
 
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        transport = pending_transports.pop()
 
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        try:
 
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            transport.ensure_base()
 
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        except NoSuchFile, e:
 
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            pending_transports.append(transport)
 
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            parent = transport.clone('..')
 
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            if parent.base == transport.base:
 
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                raise e
 
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            pending_transports.append(parent)