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# Copyright (C) 2005 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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from warnings import warn
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from cStringIO import StringIO
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from bzrlib.inventory import InventoryEntry
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import bzrlib.inventory as inventory
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import (isdir, quotefn, compact_date, rand_bytes,
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rename, splitpath, sha_file, appendpath,
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import bzrlib.errors as errors
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from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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NoSuchRevision, HistoryMissing, NotBranchError,
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DivergedBranches, LockError, UnlistableStore,
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UnlistableBranch, NoSuchFile, NotVersionedError,
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from bzrlib.textui import show_status
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from bzrlib.revision import (Revision, is_ancestor, get_intervening_revisions,
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.inventory import Inventory
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from bzrlib.store import copy_all
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from bzrlib.store.text import TextStore
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from bzrlib.store.weave import WeaveStore
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from bzrlib.testament import Testament
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import bzrlib.transactions as transactions
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from bzrlib.transport import Transport, get_transport
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from config import TreeConfig
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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BZR_BRANCH_FORMAT_6 = "Bazaar-NG branch, format 6\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster. In general anything can be
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# cached in memory between lock and unlock operations.
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def find_branch(*ignored, **ignored_too):
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# XXX: leave this here for about one release, then remove it
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raise NotImplementedError('find_branch() is not supported anymore, '
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'please use one of the new branch constructors')
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def needs_read_lock(unbound):
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"""Decorate unbound to take out and release a read lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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def needs_write_lock(unbound):
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"""Decorate unbound to take out and release a write lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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######################################################################
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"""Branch holding a history of revisions.
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Base directory/url of the branch.
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def __init__(self, *ignored, **ignored_too):
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raise NotImplementedError('The Branch class is abstract')
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def open_downlevel(base):
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"""Open a branch which may be of an old format.
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Only local branches are supported."""
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return BzrBranch(get_transport(base), relax_version_check=True)
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"""Open an existing branch, rooted at 'base' (url)"""
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t = get_transport(base)
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mutter("trying to open %r with transport %r", base, t)
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def open_containing(url):
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"""Open an existing branch which contains url.
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This probes for a branch at url, and searches upwards from there.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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If there is one, it is returned, along with the unused portion of url.
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t = get_transport(url)
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return BzrBranch(t), t.relpath(url)
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except NotBranchError:
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new_t = t.clone('..')
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if new_t.base == t.base:
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# reached the root, whatever that may be
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raise NotBranchError(path=url)
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def initialize(base):
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"""Create a new branch, rooted at 'base' (url)"""
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t = get_transport(base)
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return BzrBranch(t, init=True)
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def setup_caching(self, cache_root):
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"""Subclasses that care about caching should override this, and set
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up cached stores located under cache_root.
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self.cache_root = cache_root
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cfg = self.tree_config()
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return cfg.get_option(u"nickname", default=self.base.split('/')[-1])
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def _set_nick(self, nick):
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cfg = self.tree_config()
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cfg.set_option(nick, "nickname")
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assert cfg.get_option("nickname") == nick
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nick = property(_get_nick, _set_nick)
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def push_stores(self, branch_to):
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"""Copy the content of this branches store to branch_to."""
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raise NotImplementedError('push_stores is abstract')
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def get_transaction(self):
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"""Return the current active transaction.
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If no transaction is active, this returns a passthrough object
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for which all data is immediately flushed and no caching happens.
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raise NotImplementedError('get_transaction is abstract')
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def lock_write(self):
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raise NotImplementedError('lock_write is abstract')
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raise NotImplementedError('lock_read is abstract')
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raise NotImplementedError('unlock is abstract')
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def abspath(self, name):
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"""Return absolute filename for something in the branch
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XXX: Robert Collins 20051017 what is this used for? why is it a branch
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method and not a tree method.
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raise NotImplementedError('abspath is abstract')
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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raise NotImplementedError('controlfilename is abstract')
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
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rather should be atomically copied and replaced using atomicfile.
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raise NotImplementedError('controlfile is abstract')
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def put_controlfile(self, path, f, encode=True):
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"""Write an entry as a controlfile.
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:param path: The path to put the file, relative to the .bzr control
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:param f: A file-like or string object whose contents should be copied.
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:param encode: If true, encode the contents as utf-8
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raise NotImplementedError('put_controlfile is abstract')
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def put_controlfiles(self, files, encode=True):
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"""Write several entries as controlfiles.
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:param files: A list of [(path, file)] pairs, where the path is the directory
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underneath the bzr control directory
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:param encode: If true, encode the contents as utf-8
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raise NotImplementedError('put_controlfiles is abstract')
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def get_root_id(self):
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"""Return the id of this branches root"""
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raise NotImplementedError('get_root_id is abstract')
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def set_root_id(self, file_id):
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raise NotImplementedError('set_root_id is abstract')
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def add(self, files, ids=None):
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"""Make files versioned.
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Note that the command line normally calls smart_add instead,
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which can automatically recurse.
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This puts the files in the Added state, so that they will be
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recorded by the next commit.
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List of paths to add, relative to the base of the tree.
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If set, use these instead of automatically generated ids.
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Must be the same length as the list of files, but may
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contain None for ids that are to be autogenerated.
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TODO: Perhaps have an option to add the ids even if the files do
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TODO: Perhaps yield the ids and paths as they're added.
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raise NotImplementedError('add is abstract')
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def print_file(self, file, revno):
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"""Print `file` to stdout."""
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raise NotImplementedError('print_file is abstract')
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"""Return all unknown files.
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These are files in the working directory that are not versioned or
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control files or ignored.
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>>> from bzrlib.workingtree import WorkingTree
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>>> b = ScratchBranch(files=['foo', 'foo~'])
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>>> map(str, b.unknowns())
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>>> list(b.unknowns())
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>>> WorkingTree(b.base, b).remove('foo')
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>>> list(b.unknowns())
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raise NotImplementedError('unknowns is abstract')
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def append_revision(self, *revision_ids):
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raise NotImplementedError('append_revision is abstract')
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def set_revision_history(self, rev_history):
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raise NotImplementedError('set_revision_history is abstract')
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def has_revision(self, revision_id):
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"""True if this branch has a copy of the revision.
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This does not necessarily imply the revision is merge
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or on the mainline."""
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raise NotImplementedError('has_revision is abstract')
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def get_revision_xml(self, revision_id):
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raise NotImplementedError('get_revision_xml is abstract')
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def get_revision(self, revision_id):
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"""Return the Revision object for a named revision"""
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raise NotImplementedError('get_revision is abstract')
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def get_revision_delta(self, revno):
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"""Return the delta for one revision.
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The delta is relative to its mainline predecessor, or the
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empty tree for revision 1.
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assert isinstance(revno, int)
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rh = self.revision_history()
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if not (1 <= revno <= len(rh)):
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raise InvalidRevisionNumber(revno)
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# revno is 1-based; list is 0-based
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new_tree = self.revision_tree(rh[revno-1])
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old_tree = EmptyTree()
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old_tree = self.revision_tree(rh[revno-2])
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return compare_trees(old_tree, new_tree)
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def get_revision_sha1(self, revision_id):
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"""Hash the stored value of a revision, and return it."""
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raise NotImplementedError('get_revision_sha1 is abstract')
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def get_ancestry(self, revision_id):
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"""Return a list of revision-ids integrated by a revision.
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This currently returns a list, but the ordering is not guaranteed:
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raise NotImplementedError('get_ancestry is abstract')
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def get_inventory(self, revision_id):
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"""Get Inventory object by hash."""
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raise NotImplementedError('get_inventory is abstract')
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def get_inventory_xml(self, revision_id):
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"""Get inventory XML as a file object."""
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raise NotImplementedError('get_inventory_xml is abstract')
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def get_inventory_sha1(self, revision_id):
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"""Return the sha1 hash of the inventory entry."""
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raise NotImplementedError('get_inventory_sha1 is abstract')
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def get_revision_inventory(self, revision_id):
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"""Return inventory of a past revision."""
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raise NotImplementedError('get_revision_inventory is abstract')
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def revision_history(self):
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"""Return sequence of revision hashes on to this branch."""
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raise NotImplementedError('revision_history is abstract')
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"""Return current revision number for this branch.
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That is equivalent to the number of revisions committed to
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return len(self.revision_history())
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def last_revision(self):
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"""Return last patch hash, or None if no history."""
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ph = self.revision_history()
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def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
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"""Return a list of new revisions that would perfectly fit.
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If self and other have not diverged, return a list of the revisions
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present in other, but missing from self.
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>>> from bzrlib.commit import commit
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>>> bzrlib.trace.silent = True
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>>> br1 = ScratchBranch()
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>>> br2 = ScratchBranch()
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>>> br1.missing_revisions(br2)
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>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> br2.missing_revisions(br1)
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>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
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>>> br1.missing_revisions(br2)
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>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
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>>> br1.missing_revisions(br2)
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Traceback (most recent call last):
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DivergedBranches: These branches have diverged.
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self_history = self.revision_history()
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self_len = len(self_history)
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other_history = other.revision_history()
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other_len = len(other_history)
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common_index = min(self_len, other_len) -1
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if common_index >= 0 and \
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self_history[common_index] != other_history[common_index]:
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raise DivergedBranches(self, other)
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if stop_revision is None:
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stop_revision = other_len
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assert isinstance(stop_revision, int)
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if stop_revision > other_len:
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raise bzrlib.errors.NoSuchRevision(self, stop_revision)
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return other_history[self_len:stop_revision]
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def update_revisions(self, other, stop_revision=None):
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"""Pull in new perfect-fit revisions."""
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raise NotImplementedError('update_revisions is abstract')
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def pullable_revisions(self, other, stop_revision):
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raise NotImplementedError('pullable_revisions is abstract')
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def revision_id_to_revno(self, revision_id):
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"""Given a revision id, return its revno"""
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if revision_id is None:
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history = self.revision_history()
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return history.index(revision_id) + 1
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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def get_rev_id(self, revno, history=None):
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"""Find the revision id of the specified revno."""
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history = self.revision_history()
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elif revno <= 0 or revno > len(history):
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raise bzrlib.errors.NoSuchRevision(self, revno)
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return history[revno - 1]
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def revision_tree(self, revision_id):
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"""Return Tree for a revision on this branch.
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`revision_id` may be None for the null revision, in which case
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an `EmptyTree` is returned."""
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raise NotImplementedError('revision_tree is abstract')
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def working_tree(self):
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"""Return a `Tree` for the working copy."""
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raise NotImplementedError('working_tree is abstract')
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def pull(self, source, overwrite=False):
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raise NotImplementedError('pull is abstract')
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def basis_tree(self):
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"""Return `Tree` object for last revision.
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If there are no revisions yet, return an `EmptyTree`.
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return self.revision_tree(self.last_revision())
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def rename_one(self, from_rel, to_rel):
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This can change the directory or the filename or both.
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raise NotImplementedError('rename_one is abstract')
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def move(self, from_paths, to_name):
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to_name must exist as a versioned directory.
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If to_name exists and is a directory, the files are moved into
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it, keeping their old names. If it is a directory,
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Note that to_name is only the last component of the new name;
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this doesn't change the directory.
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This returns a list of (from_path, to_path) pairs for each
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raise NotImplementedError('move is abstract')
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def get_parent(self):
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"""Return the parent location of the branch.
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This is the default location for push/pull/missing. The usual
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pattern is that the user can override it by specifying a
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raise NotImplementedError('get_parent is abstract')
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def get_push_location(self):
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"""Return the None or the location to push this branch to."""
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raise NotImplementedError('get_push_location is abstract')
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def set_push_location(self, location):
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"""Set a new push location for this branch."""
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raise NotImplementedError('set_push_location is abstract')
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def set_parent(self, url):
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raise NotImplementedError('set_parent is abstract')
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def check_revno(self, revno):
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Check whether a revno corresponds to any revision.
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Zero (the NULL revision) is considered valid.
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self.check_real_revno(revno)
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def check_real_revno(self, revno):
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Check whether a revno corresponds to a real revision.
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Zero (the NULL revision) is considered invalid
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if revno < 1 or revno > self.revno():
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raise InvalidRevisionNumber(revno)
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def sign_revision(self, revision_id, gpg_strategy):
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raise NotImplementedError('sign_revision is abstract')
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def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
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raise NotImplementedError('store_revision_signature is abstract')
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class BzrBranch(Branch):
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"""A branch stored in the actual filesystem.
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Note that it's "local" in the context of the filesystem; it doesn't
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really matter if it's on an nfs/smb/afs/coda/... share, as long as
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it's writable, and can be accessed via the normal filesystem API.
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If _lock_mode is true, a positive count of the number of times the
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Lock object from bzrlib.lock.
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# We actually expect this class to be somewhat short-lived; part of its
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# purpose is to try to isolate what bits of the branch logic are tied to
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# filesystem access, so that in a later step, we can extricate them to
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# a separarte ("storage") class.
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_inventory_weave = None
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def push_stores(self, branch_to):
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"""See Branch.push_stores."""
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if (self._branch_format != branch_to._branch_format
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or self._branch_format != 4):
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from bzrlib.fetch import greedy_fetch
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mutter("falling back to fetch logic to push between %s(%s) and %s(%s)",
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self, self._branch_format, branch_to, branch_to._branch_format)
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greedy_fetch(to_branch=branch_to, from_branch=self,
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revision=self.last_revision())
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store_pairs = ((self.text_store, branch_to.text_store),
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(self.inventory_store, branch_to.inventory_store),
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(self.revision_store, branch_to.revision_store))
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for from_store, to_store in store_pairs:
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copy_all(from_store, to_store)
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except UnlistableStore:
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raise UnlistableBranch(from_store)
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def __init__(self, transport, init=False,
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relax_version_check=False):
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"""Create new branch object at a particular location.
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transport -- A Transport object, defining how to access files.
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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relax_version_check -- If true, the usual check for the branch
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version is not applied. This is intended only for
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upgrade/recovery type use; it's not guaranteed that
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all operations will work on old format branches.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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assert isinstance(transport, Transport), \
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"%r is not a Transport" % transport
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self._transport = transport
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self._check_format(relax_version_check)
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def get_store(name, compressed=True, prefixed=False):
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# FIXME: This approach of assuming stores are all entirely compressed
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# or entirely uncompressed is tidy, but breaks upgrade from
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# some existing branches where there's a mixture; we probably
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# still want the option to look for both.
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relpath = self._rel_controlfilename(name)
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store = TextStore(self._transport.clone(relpath),
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compressed=compressed)
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#if self._transport.should_cache():
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# cache_path = os.path.join(self.cache_root, name)
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# os.mkdir(cache_path)
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# store = bzrlib.store.CachedStore(store, cache_path)
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def get_weave(name, prefixed=False):
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relpath = self._rel_controlfilename(name)
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ws = WeaveStore(self._transport.clone(relpath), prefixed=prefixed)
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if self._transport.should_cache():
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ws.enable_cache = True
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if self._branch_format == 4:
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self.inventory_store = get_store('inventory-store')
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self.text_store = get_store('text-store')
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self.revision_store = get_store('revision-store')
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elif self._branch_format == 5:
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self.control_weaves = get_weave('')
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self.weave_store = get_weave('weaves')
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self.revision_store = get_store('revision-store', compressed=False)
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elif self._branch_format == 6:
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self.control_weaves = get_weave('')
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self.weave_store = get_weave('weaves', prefixed=True)
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self.revision_store = get_store('revision-store', compressed=False,
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self.revision_store.register_suffix('sig')
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self._transaction = None
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return '%s(%r)' % (self.__class__.__name__, self._transport.base)
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if self._lock_mode or self._lock:
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# XXX: This should show something every time, and be suitable for
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# headless operation and embedding
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warn("branch %r was not explicitly unlocked" % self)
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# TODO: It might be best to do this somewhere else,
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# but it is nice for a Branch object to automatically
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# cache it's information.
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# Alternatively, we could have the Transport objects cache requests
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# See the earlier discussion about how major objects (like Branch)
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# should never expect their __del__ function to run.
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if hasattr(self, 'cache_root') and self.cache_root is not None:
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shutil.rmtree(self.cache_root)
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self.cache_root = None
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return self._transport.base
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base = property(_get_base, doc="The URL for the root of this branch.")
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def _finish_transaction(self):
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"""Exit the current transaction."""
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if self._transaction is None:
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raise errors.LockError('Branch %s is not in a transaction' %
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transaction = self._transaction
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self._transaction = None
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def get_transaction(self):
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"""See Branch.get_transaction."""
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if self._transaction is None:
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return transactions.PassThroughTransaction()
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return self._transaction
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def _set_transaction(self, new_transaction):
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"""Set a new active transaction."""
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if self._transaction is not None:
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raise errors.LockError('Branch %s is in a transaction already.' %
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self._transaction = new_transaction
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def lock_write(self):
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mutter("lock write: %s (%s)", self, self._lock_count)
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# TODO: Upgrade locking to support using a Transport,
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# and potentially a remote locking protocol
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if self._lock_mode != 'w':
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_count += 1
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self._lock = self._transport.lock_write(
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self._rel_controlfilename('branch-lock'))
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self._lock_mode = 'w'
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self._set_transaction(transactions.PassThroughTransaction())
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mutter("lock read: %s (%s)", self, self._lock_count)
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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self._lock = self._transport.lock_read(
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self._rel_controlfilename('branch-lock'))
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self._lock_mode = 'r'
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self._set_transaction(transactions.ReadOnlyTransaction())
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# 5K may be excessive, but hey, its a knob.
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self.get_transaction().set_cache_size(5000)
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mutter("unlock: %s (%s)", self, self._lock_count)
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if not self._lock_mode:
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raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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self._finish_transaction()
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self._lock_mode = self._lock_count = None
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def abspath(self, name):
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"""See Branch.abspath."""
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return self._transport.abspath(name)
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def _rel_controlfilename(self, file_or_path):
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if not isinstance(file_or_path, basestring):
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file_or_path = '/'.join(file_or_path)
753
if file_or_path == '':
755
return bzrlib.transport.urlescape(bzrlib.BZRDIR + '/' + file_or_path)
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def controlfilename(self, file_or_path):
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"""See Branch.controlfilename."""
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return self._transport.abspath(self._rel_controlfilename(file_or_path))
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def controlfile(self, file_or_path, mode='r'):
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"""See Branch.controlfile."""
765
relpath = self._rel_controlfilename(file_or_path)
766
#TODO: codecs.open() buffers linewise, so it was overloaded with
767
# a much larger buffer, do we need to do the same for getreader/getwriter?
769
return self._transport.get(relpath)
771
raise BzrError("Branch.controlfile(mode='wb') is not supported, use put_controlfiles")
773
# XXX: Do we really want errors='replace'? Perhaps it should be
774
# an error, or at least reported, if there's incorrectly-encoded
775
# data inside a file.
776
# <https://launchpad.net/products/bzr/+bug/3823>
777
return codecs.getreader('utf-8')(self._transport.get(relpath), errors='replace')
779
raise BzrError("Branch.controlfile(mode='w') is not supported, use put_controlfiles")
781
raise BzrError("invalid controlfile mode %r" % mode)
783
def put_controlfile(self, path, f, encode=True):
784
"""See Branch.put_controlfile."""
785
self.put_controlfiles([(path, f)], encode=encode)
787
def put_controlfiles(self, files, encode=True):
788
"""See Branch.put_controlfiles."""
791
for path, f in files:
793
if isinstance(f, basestring):
794
f = f.encode('utf-8', 'replace')
796
f = codecs.getwriter('utf-8')(f, errors='replace')
797
path = self._rel_controlfilename(path)
798
ctrl_files.append((path, f))
799
self._transport.put_multi(ctrl_files)
801
def _make_control(self):
802
from bzrlib.inventory import Inventory
803
from bzrlib.weavefile import write_weave_v5
804
from bzrlib.weave import Weave
806
# Create an empty inventory
808
# if we want per-tree root ids then this is the place to set
809
# them; they're not needed for now and so ommitted for
811
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
812
empty_inv = sio.getvalue()
814
bzrlib.weavefile.write_weave_v5(Weave(), sio)
815
empty_weave = sio.getvalue()
817
dirs = [[], 'revision-store', 'weaves']
819
"This is a Bazaar-NG control directory.\n"
820
"Do not change any files in this directory.\n"),
821
('branch-format', BZR_BRANCH_FORMAT_6),
822
('revision-history', ''),
825
('pending-merges', ''),
826
('inventory', empty_inv),
827
('inventory.weave', empty_weave),
828
('ancestry.weave', empty_weave)
830
cfn = self._rel_controlfilename
831
self._transport.mkdir_multi([cfn(d) for d in dirs])
832
self.put_controlfiles(files)
833
mutter('created control directory in ' + self._transport.base)
835
def _check_format(self, relax_version_check):
836
"""Check this branch format is supported.
838
The format level is stored, as an integer, in
839
self._branch_format for code that needs to check it later.
841
In the future, we might need different in-memory Branch
842
classes to support downlevel branches. But not yet.
845
fmt = self.controlfile('branch-format', 'r').read()
847
raise NotBranchError(path=self.base)
848
mutter("got branch format %r", fmt)
849
if fmt == BZR_BRANCH_FORMAT_6:
850
self._branch_format = 6
851
elif fmt == BZR_BRANCH_FORMAT_5:
852
self._branch_format = 5
853
elif fmt == BZR_BRANCH_FORMAT_4:
854
self._branch_format = 4
856
if (not relax_version_check
857
and self._branch_format not in (5, 6)):
858
raise errors.UnsupportedFormatError(
859
'sorry, branch format %r not supported' % fmt,
860
['use a different bzr version',
861
'or remove the .bzr directory'
862
' and "bzr init" again'])
864
def get_root_id(self):
865
"""See Branch.get_root_id."""
866
inv = self.get_inventory(self.last_revision())
867
return inv.root.file_id
870
def set_root_id(self, file_id):
871
"""See Branch.set_root_id."""
872
inv = self.working_tree().read_working_inventory()
873
orig_root_id = inv.root.file_id
874
del inv._byid[inv.root.file_id]
875
inv.root.file_id = file_id
876
inv._byid[inv.root.file_id] = inv.root
879
if entry.parent_id in (None, orig_root_id):
880
entry.parent_id = inv.root.file_id
881
self._write_inventory(inv)
884
def add(self, files, ids=None):
885
"""See Branch.add."""
886
# TODO: Re-adding a file that is removed in the working copy
887
# should probably put it back with the previous ID.
888
if isinstance(files, basestring):
889
assert(ids is None or isinstance(ids, basestring))
895
ids = [None] * len(files)
897
assert(len(ids) == len(files))
899
inv = self.working_tree().read_working_inventory()
900
for f,file_id in zip(files, ids):
901
if is_control_file(f):
902
raise BzrError("cannot add control file %s" % quotefn(f))
907
raise BzrError("cannot add top-level %r" % f)
909
fullpath = os.path.normpath(self.abspath(f))
912
kind = file_kind(fullpath)
914
# maybe something better?
915
raise BzrError('cannot add: not a regular file, symlink or directory: %s' % quotefn(f))
917
if not InventoryEntry.versionable_kind(kind):
918
raise BzrError('cannot add: not a versionable file ('
919
'i.e. regular file, symlink or directory): %s' % quotefn(f))
922
file_id = gen_file_id(f)
923
inv.add_path(f, kind=kind, file_id=file_id)
925
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
927
self.working_tree()._write_inventory(inv)
930
def print_file(self, file, revno):
931
"""See Branch.print_file."""
932
tree = self.revision_tree(self.get_rev_id(revno))
933
# use inventory as it was in that revision
934
file_id = tree.inventory.path2id(file)
936
raise BzrError("%r is not present in revision %s" % (file, revno))
937
tree.print_file(file_id)
940
"""See Branch.unknowns."""
941
return self.working_tree().unknowns()
944
def append_revision(self, *revision_ids):
945
"""See Branch.append_revision."""
946
for revision_id in revision_ids:
947
mutter("add {%s} to revision-history" % revision_id)
948
rev_history = self.revision_history()
949
rev_history.extend(revision_ids)
950
self.set_revision_history(rev_history)
953
def set_revision_history(self, rev_history):
954
"""See Branch.set_revision_history."""
955
self.put_controlfile('revision-history', '\n'.join(rev_history))
957
def has_revision(self, revision_id):
958
"""See Branch.has_revision."""
959
return (revision_id is None
960
or self.revision_store.has_id(revision_id))
963
def _get_revision_xml_file(self, revision_id):
964
if not revision_id or not isinstance(revision_id, basestring):
965
raise InvalidRevisionId(revision_id=revision_id, branch=self)
967
return self.revision_store.get(revision_id)
968
except (IndexError, KeyError):
969
raise bzrlib.errors.NoSuchRevision(self, revision_id)
971
def get_revision_xml(self, revision_id):
972
"""See Branch.get_revision_xml."""
973
return self._get_revision_xml_file(revision_id).read()
975
def get_revision(self, revision_id):
976
"""See Branch.get_revision."""
977
xml_file = self._get_revision_xml_file(revision_id)
980
r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
981
except SyntaxError, e:
982
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
986
assert r.revision_id == revision_id
989
def get_revision_sha1(self, revision_id):
990
"""See Branch.get_revision_sha1."""
991
# In the future, revision entries will be signed. At that
992
# point, it is probably best *not* to include the signature
993
# in the revision hash. Because that lets you re-sign
994
# the revision, (add signatures/remove signatures) and still
995
# have all hash pointers stay consistent.
996
# But for now, just hash the contents.
997
return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
999
def get_ancestry(self, revision_id):
1000
"""See Branch.get_ancestry."""
1001
if revision_id is None:
1003
w = self._get_inventory_weave()
1004
return [None] + map(w.idx_to_name,
1005
w.inclusions([w.lookup(revision_id)]))
1007
def _get_inventory_weave(self):
1008
return self.control_weaves.get_weave('inventory',
1009
self.get_transaction())
1011
def get_inventory(self, revision_id):
1012
"""See Branch.get_inventory."""
1013
xml = self.get_inventory_xml(revision_id)
1014
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
1016
def get_inventory_xml(self, revision_id):
1017
"""See Branch.get_inventory_xml."""
1019
assert isinstance(revision_id, basestring), type(revision_id)
1020
iw = self._get_inventory_weave()
1021
return iw.get_text(iw.lookup(revision_id))
1023
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
1025
def get_inventory_sha1(self, revision_id):
1026
"""See Branch.get_inventory_sha1."""
1027
return self.get_revision(revision_id).inventory_sha1
1029
def get_revision_inventory(self, revision_id):
1030
"""See Branch.get_revision_inventory."""
1031
# TODO: Unify this with get_inventory()
1032
# bzr 0.0.6 and later imposes the constraint that the inventory_id
1033
# must be the same as its revision, so this is trivial.
1034
if revision_id == None:
1035
# This does not make sense: if there is no revision,
1036
# then it is the current tree inventory surely ?!
1037
# and thus get_root_id() is something that looks at the last
1038
# commit on the branch, and the get_root_id is an inventory check.
1039
raise NotImplementedError
1040
# return Inventory(self.get_root_id())
1042
return self.get_inventory(revision_id)
1045
def revision_history(self):
1046
"""See Branch.revision_history."""
1047
transaction = self.get_transaction()
1048
history = transaction.map.find_revision_history()
1049
if history is not None:
1050
mutter("cache hit for revision-history in %s", self)
1051
return list(history)
1052
history = [l.rstrip('\r\n') for l in
1053
self.controlfile('revision-history', 'r').readlines()]
1054
transaction.map.add_revision_history(history)
1055
# this call is disabled because revision_history is
1056
# not really an object yet, and the transaction is for objects.
1057
# transaction.register_clean(history, precious=True)
1058
return list(history)
1060
def update_revisions(self, other, stop_revision=None):
1061
"""See Branch.update_revisions."""
1062
from bzrlib.fetch import greedy_fetch
1063
if stop_revision is None:
1064
stop_revision = other.last_revision()
1065
### Should this be checking is_ancestor instead of revision_history?
1066
if (stop_revision is not None and
1067
stop_revision in self.revision_history()):
1069
greedy_fetch(to_branch=self, from_branch=other,
1070
revision=stop_revision)
1071
pullable_revs = self.pullable_revisions(other, stop_revision)
1072
if len(pullable_revs) > 0:
1073
self.append_revision(*pullable_revs)
1075
def pullable_revisions(self, other, stop_revision):
1076
"""See Branch.pullable_revisions."""
1077
other_revno = other.revision_id_to_revno(stop_revision)
1079
return self.missing_revisions(other, other_revno)
1080
except DivergedBranches, e:
1082
pullable_revs = get_intervening_revisions(self.last_revision(),
1083
stop_revision, self)
1084
assert self.last_revision() not in pullable_revs
1085
return pullable_revs
1086
except bzrlib.errors.NotAncestor:
1087
if is_ancestor(self.last_revision(), stop_revision, self):
1092
def revision_tree(self, revision_id):
1093
"""See Branch.revision_tree."""
1094
# TODO: refactor this to use an existing revision object
1095
# so we don't need to read it in twice.
1096
if revision_id == None or revision_id == NULL_REVISION:
1099
inv = self.get_revision_inventory(revision_id)
1100
return RevisionTree(self.weave_store, inv, revision_id)
1102
def working_tree(self):
1103
"""See Branch.working_tree."""
1104
from bzrlib.workingtree import WorkingTree
1105
# TODO: In the future, perhaps WorkingTree should utilize Transport
1106
# RobertCollins 20051003 - I don't think it should - working trees are
1107
# much more complex to keep consistent than our careful .bzr subset.
1108
# instead, we should say that working trees are local only, and optimise
1110
if self._transport.base.find('://') != -1:
1111
raise NoWorkingTree(self.base)
1112
return WorkingTree(self.base, branch=self)
1115
def pull(self, source, overwrite=False):
1116
"""See Branch.pull."""
1120
self.update_revisions(source)
1121
except DivergedBranches:
1124
self.set_revision_history(source.revision_history())
1129
def rename_one(self, from_rel, to_rel):
1130
"""See Branch.rename_one."""
1131
tree = self.working_tree()
1132
inv = tree.inventory
1133
if not tree.has_filename(from_rel):
1134
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1135
if tree.has_filename(to_rel):
1136
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1138
file_id = inv.path2id(from_rel)
1140
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1142
if inv.path2id(to_rel):
1143
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1145
to_dir, to_tail = os.path.split(to_rel)
1146
to_dir_id = inv.path2id(to_dir)
1147
if to_dir_id == None and to_dir != '':
1148
raise BzrError("can't determine destination directory id for %r" % to_dir)
1150
mutter("rename_one:")
1151
mutter(" file_id {%s}" % file_id)
1152
mutter(" from_rel %r" % from_rel)
1153
mutter(" to_rel %r" % to_rel)
1154
mutter(" to_dir %r" % to_dir)
1155
mutter(" to_dir_id {%s}" % to_dir_id)
1157
inv.rename(file_id, to_dir_id, to_tail)
1159
from_abs = self.abspath(from_rel)
1160
to_abs = self.abspath(to_rel)
1162
rename(from_abs, to_abs)
1164
raise BzrError("failed to rename %r to %r: %s"
1165
% (from_abs, to_abs, e[1]),
1166
["rename rolled back"])
1168
self.working_tree()._write_inventory(inv)
1171
def move(self, from_paths, to_name):
1172
"""See Branch.move."""
1174
## TODO: Option to move IDs only
1175
assert not isinstance(from_paths, basestring)
1176
tree = self.working_tree()
1177
inv = tree.inventory
1178
to_abs = self.abspath(to_name)
1179
if not isdir(to_abs):
1180
raise BzrError("destination %r is not a directory" % to_abs)
1181
if not tree.has_filename(to_name):
1182
raise BzrError("destination %r not in working directory" % to_abs)
1183
to_dir_id = inv.path2id(to_name)
1184
if to_dir_id == None and to_name != '':
1185
raise BzrError("destination %r is not a versioned directory" % to_name)
1186
to_dir_ie = inv[to_dir_id]
1187
if to_dir_ie.kind not in ('directory', 'root_directory'):
1188
raise BzrError("destination %r is not a directory" % to_abs)
1190
to_idpath = inv.get_idpath(to_dir_id)
1192
for f in from_paths:
1193
if not tree.has_filename(f):
1194
raise BzrError("%r does not exist in working tree" % f)
1195
f_id = inv.path2id(f)
1197
raise BzrError("%r is not versioned" % f)
1198
name_tail = splitpath(f)[-1]
1199
dest_path = appendpath(to_name, name_tail)
1200
if tree.has_filename(dest_path):
1201
raise BzrError("destination %r already exists" % dest_path)
1202
if f_id in to_idpath:
1203
raise BzrError("can't move %r to a subdirectory of itself" % f)
1205
# OK, so there's a race here, it's possible that someone will
1206
# create a file in this interval and then the rename might be
1207
# left half-done. But we should have caught most problems.
1209
for f in from_paths:
1210
name_tail = splitpath(f)[-1]
1211
dest_path = appendpath(to_name, name_tail)
1212
result.append((f, dest_path))
1213
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1215
rename(self.abspath(f), self.abspath(dest_path))
1217
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1218
["rename rolled back"])
1220
self.working_tree()._write_inventory(inv)
1223
def get_parent(self):
1224
"""See Branch.get_parent."""
1226
_locs = ['parent', 'pull', 'x-pull']
1229
return self.controlfile(l, 'r').read().strip('\n')
1231
if e.errno != errno.ENOENT:
1235
def get_push_location(self):
1236
"""See Branch.get_push_location."""
1237
config = bzrlib.config.BranchConfig(self)
1238
push_loc = config.get_user_option('push_location')
1241
def set_push_location(self, location):
1242
"""See Branch.set_push_location."""
1243
config = bzrlib.config.LocationConfig(self.base)
1244
config.set_user_option('push_location', location)
1247
def set_parent(self, url):
1248
"""See Branch.set_parent."""
1249
# TODO: Maybe delete old location files?
1250
from bzrlib.atomicfile import AtomicFile
1251
f = AtomicFile(self.controlfilename('parent'))
1258
def tree_config(self):
1259
return TreeConfig(self)
1261
def sign_revision(self, revision_id, gpg_strategy):
1262
"""See Branch.sign_revision."""
1263
plaintext = Testament.from_revision(self, revision_id).as_short_text()
1264
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1267
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1268
"""See Branch.store_revision_signature."""
1269
self.revision_store.add(StringIO(gpg_strategy.sign(plaintext)),
1273
class ScratchBranch(BzrBranch):
1274
"""Special test class: a branch that cleans up after itself.
1276
>>> b = ScratchBranch()
1280
>>> b._transport.__del__()
1285
def __init__(self, files=[], dirs=[], transport=None):
1286
"""Make a test branch.
1288
This creates a temporary directory and runs init-tree in it.
1290
If any files are listed, they are created in the working copy.
1292
if transport is None:
1293
transport = bzrlib.transport.local.ScratchTransport()
1294
super(ScratchBranch, self).__init__(transport, init=True)
1296
super(ScratchBranch, self).__init__(transport)
1299
self._transport.mkdir(d)
1302
self._transport.put(f, 'content of %s' % f)
1307
>>> orig = ScratchBranch(files=["file1", "file2"])
1308
>>> clone = orig.clone()
1309
>>> if os.name != 'nt':
1310
... os.path.samefile(orig.base, clone.base)
1312
... orig.base == clone.base
1315
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1318
from shutil import copytree
1319
from tempfile import mkdtemp
1322
copytree(self.base, base, symlinks=True)
1323
return ScratchBranch(
1324
transport=bzrlib.transport.local.ScratchTransport(base))
1327
######################################################################
1331
def is_control_file(filename):
1332
## FIXME: better check
1333
filename = os.path.normpath(filename)
1334
while filename != '':
1335
head, tail = os.path.split(filename)
1336
## mutter('check %r for control file' % ((head, tail), ))
1337
if tail == bzrlib.BZRDIR:
1339
if filename == head:
1346
def gen_file_id(name):
1347
"""Return new file id.
1349
This should probably generate proper UUIDs, but for the moment we
1350
cope with just randomness because running uuidgen every time is
1353
from binascii import hexlify
1354
from time import time
1356
# get last component
1357
idx = name.rfind('/')
1359
name = name[idx+1 : ]
1360
idx = name.rfind('\\')
1362
name = name[idx+1 : ]
1364
# make it not a hidden file
1365
name = name.lstrip('.')
1367
# remove any wierd characters; we don't escape them but rather
1368
# just pull them out
1369
name = re.sub(r'[^\w.]', '', name)
1371
s = hexlify(rand_bytes(8))
1372
return '-'.join((name, compact_date(time()), s))
1376
"""Return a new tree-root file id."""
1377
return gen_file_id('TREE_ROOT')