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  • Committer: Szilveszter Farkas (Phanatic)
  • Date: 2006-06-10 16:28:58 UTC
  • mto: (0.14.1 main) (93.1.1 win32.bialix)
  • mto: This revision was merged to the branch mainline in revision 83.
  • Revision ID: Szilveszter.Farkas@gmail.com-20060610162858-38ce234fa35d4447
* backend/errors.py: some basic exceptions added
* backend/fileops.py: mkdir() and add() implemented 
* backend/init.py: init() and branch() implemented
* The work has begun :)

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backend/init.py
 
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# Copyright (C) 2006 by Szilveszter Farkas (Phanatic)
 
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# Some parts of the code are:
 
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# Copyright (C) 2005, 2006 by Canonical Ltd
 
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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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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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# You should have received a copy of the GNU General Public License
 
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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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import errno
 
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import os
 
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import bzrlib.errors as errors
 
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from errors import (AlreadyBranchError, BranchExistsWithoutWorkingTree,
 
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                    NonExistingParent, NonExistingRevision, NonExistingSource,
 
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                    RevisionValueError, TargetAlreadyExists)
 
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def init(location):
 
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    from bzrlib.builtins import get_format_type
 
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    import bzrlib.bzrdir as bzrdir
 
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    format = get_format_type('default')
 
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    if not os.path.exists(location):
 
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        os.mkdir(location)
 
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    try:
 
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        existing_bzrdir = bzrdir.BzrDir.open(location)
 
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    except errors.NotBranchError:
 
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        bzrdir.BzrDir.create_branch_convenience(location, format=format)
 
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    else:
 
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        if existing_bzrdir.has_branch():
 
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            if existing_bzrdir.has_workingtree():
 
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                raise AlreadyBranchError(location)
 
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            else:
 
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                raise BranchExistsWithoutWorkingTree(location)
 
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        else:
 
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            existing_bzrdir.create_branch()
 
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            existing_bzrdir.create_workingtree()
 
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def branch(from_location, to_location, revision=None):
 
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    from bzrlib.branch import Branch
 
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    from bzrlib.transport import get_transport
 
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    if revision is None:
 
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        revision = [None]
 
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    elif len(revision) > 1:
 
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        raise RevisionValueError('bzr branch --revision takes exactly 1 revision value')
 
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    try:
 
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        br_from = Branch.open(from_location)
 
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    except OSError, e:
 
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        if e.errno == errno.ENOENT:
 
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            raise NonExistingSource(from_location)
 
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        else:
 
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            raise
 
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    br_from.lock_read()
 
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    try:
 
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        basis_dir = None
 
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        if len(revision) == 1 and revision[0] is not None:
 
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            revision_id = revision[0].in_history(br_from)[1]
 
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        else:
 
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            revision_id = br_from.last_revision()
 
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        to_location = to_location + '/' + os.path.basename(from_location.rstrip("/\\"))
 
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        name = None
 
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        to_transport = get_transport(to_location)
 
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        try:
 
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            to_transport.mkdir('.')
 
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        except errors.FileExists:
 
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            raise TargetAlreadyExists(to_location)
 
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        except errors.NoSuchFile:
 
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            raise NonExistingParent(to_location)
 
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        try:
 
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            dir = br_from.bzrdir.sprout(to_transport.base, revision_id, basis_dir)
 
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            branch = dir.open_branch()
 
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        except errors.NoSuchRevision:
 
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            to_transport.delete_tree('.')
 
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            raise NonExistingRevision(from_location, revision[0])
 
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        if name:
 
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            branch.control_files.put_utf8('branch-name', name)
 
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    finally:
 
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        br_from.unlock()
 
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    return branch.revno()
 
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def checkout():
 
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    """ FIXME - will be implemented later """