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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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# XXX This should be a WorkingTree method, not a Branch method.
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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)
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if file_or_path == '':
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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))
762
def controlfile(self, file_or_path, mode='r'):
763
"""See Branch.controlfile."""
766
relpath = self._rel_controlfilename(file_or_path)
767
#TODO: codecs.open() buffers linewise, so it was overloaded with
768
# a much larger buffer, do we need to do the same for getreader/getwriter?
770
return self._transport.get(relpath)
772
raise BzrError("Branch.controlfile(mode='wb') is not supported, use put_controlfiles")
774
# XXX: Do we really want errors='replace'? Perhaps it should be
775
# an error, or at least reported, if there's incorrectly-encoded
776
# data inside a file.
777
# <https://launchpad.net/products/bzr/+bug/3823>
778
return codecs.getreader('utf-8')(self._transport.get(relpath), errors='replace')
780
raise BzrError("Branch.controlfile(mode='w') is not supported, use put_controlfiles")
782
raise BzrError("invalid controlfile mode %r" % mode)
784
def put_controlfile(self, path, f, encode=True):
785
"""See Branch.put_controlfile."""
786
self.put_controlfiles([(path, f)], encode=encode)
788
def put_controlfiles(self, files, encode=True):
789
"""See Branch.put_controlfiles."""
792
for path, f in files:
794
if isinstance(f, basestring):
795
f = f.encode('utf-8', 'replace')
797
f = codecs.getwriter('utf-8')(f, errors='replace')
798
path = self._rel_controlfilename(path)
799
ctrl_files.append((path, f))
800
self._transport.put_multi(ctrl_files)
802
def _make_control(self):
803
from bzrlib.inventory import Inventory
804
from bzrlib.weavefile import write_weave_v5
805
from bzrlib.weave import Weave
807
# Create an empty inventory
809
# if we want per-tree root ids then this is the place to set
810
# them; they're not needed for now and so ommitted for
812
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
813
empty_inv = sio.getvalue()
815
bzrlib.weavefile.write_weave_v5(Weave(), sio)
816
empty_weave = sio.getvalue()
818
dirs = [[], 'revision-store', 'weaves']
820
"This is a Bazaar-NG control directory.\n"
821
"Do not change any files in this directory.\n"),
822
('branch-format', BZR_BRANCH_FORMAT_6),
823
('revision-history', ''),
826
('pending-merges', ''),
827
('inventory', empty_inv),
828
('inventory.weave', empty_weave),
829
('ancestry.weave', empty_weave)
831
cfn = self._rel_controlfilename
832
self._transport.mkdir_multi([cfn(d) for d in dirs])
833
self.put_controlfiles(files)
834
mutter('created control directory in ' + self._transport.base)
836
def _check_format(self, relax_version_check):
837
"""Check this branch format is supported.
839
The format level is stored, as an integer, in
840
self._branch_format for code that needs to check it later.
842
In the future, we might need different in-memory Branch
843
classes to support downlevel branches. But not yet.
846
fmt = self.controlfile('branch-format', 'r').read()
848
raise NotBranchError(path=self.base)
849
mutter("got branch format %r", fmt)
850
if fmt == BZR_BRANCH_FORMAT_6:
851
self._branch_format = 6
852
elif fmt == BZR_BRANCH_FORMAT_5:
853
self._branch_format = 5
854
elif fmt == BZR_BRANCH_FORMAT_4:
855
self._branch_format = 4
857
if (not relax_version_check
858
and self._branch_format not in (5, 6)):
859
raise errors.UnsupportedFormatError(
860
'sorry, branch format %r not supported' % fmt,
861
['use a different bzr version',
862
'or remove the .bzr directory'
863
' and "bzr init" again'])
865
def get_root_id(self):
866
"""See Branch.get_root_id."""
867
inv = self.get_inventory(self.last_revision())
868
return inv.root.file_id
871
def set_root_id(self, file_id):
872
"""See Branch.set_root_id."""
873
inv = self.working_tree().read_working_inventory()
874
orig_root_id = inv.root.file_id
875
del inv._byid[inv.root.file_id]
876
inv.root.file_id = file_id
877
inv._byid[inv.root.file_id] = inv.root
880
if entry.parent_id in (None, orig_root_id):
881
entry.parent_id = inv.root.file_id
882
self._write_inventory(inv)
885
def add(self, files, ids=None):
886
"""See Branch.add."""
887
# TODO: Re-adding a file that is removed in the working copy
888
# should probably put it back with the previous ID.
889
if isinstance(files, basestring):
890
assert(ids is None or isinstance(ids, basestring))
896
ids = [None] * len(files)
898
assert(len(ids) == len(files))
900
inv = self.working_tree().read_working_inventory()
901
for f,file_id in zip(files, ids):
902
if is_control_file(f):
903
raise BzrError("cannot add control file %s" % quotefn(f))
908
raise BzrError("cannot add top-level %r" % f)
910
fullpath = os.path.normpath(self.abspath(f))
913
kind = file_kind(fullpath)
915
# maybe something better?
916
raise BzrError('cannot add: not a regular file, symlink or directory: %s' % quotefn(f))
918
if not InventoryEntry.versionable_kind(kind):
919
raise BzrError('cannot add: not a versionable file ('
920
'i.e. regular file, symlink or directory): %s' % quotefn(f))
923
file_id = gen_file_id(f)
924
inv.add_path(f, kind=kind, file_id=file_id)
926
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
928
self.working_tree()._write_inventory(inv)
931
def print_file(self, file, revno):
932
"""See Branch.print_file."""
933
tree = self.revision_tree(self.get_rev_id(revno))
934
# use inventory as it was in that revision
935
file_id = tree.inventory.path2id(file)
937
raise BzrError("%r is not present in revision %s" % (file, revno))
938
tree.print_file(file_id)
941
"""See Branch.unknowns."""
942
return self.working_tree().unknowns()
945
def append_revision(self, *revision_ids):
946
"""See Branch.append_revision."""
947
for revision_id in revision_ids:
948
mutter("add {%s} to revision-history" % revision_id)
949
rev_history = self.revision_history()
950
rev_history.extend(revision_ids)
951
self.set_revision_history(rev_history)
954
def set_revision_history(self, rev_history):
955
"""See Branch.set_revision_history."""
956
self.put_controlfile('revision-history', '\n'.join(rev_history))
958
def has_revision(self, revision_id):
959
"""See Branch.has_revision."""
960
return (revision_id is None
961
or self.revision_store.has_id(revision_id))
964
def _get_revision_xml_file(self, revision_id):
965
if not revision_id or not isinstance(revision_id, basestring):
966
raise InvalidRevisionId(revision_id=revision_id, branch=self)
968
return self.revision_store.get(revision_id)
969
except (IndexError, KeyError):
970
raise bzrlib.errors.NoSuchRevision(self, revision_id)
972
def get_revision_xml(self, revision_id):
973
"""See Branch.get_revision_xml."""
974
return self._get_revision_xml_file(revision_id).read()
976
def get_revision(self, revision_id):
977
"""See Branch.get_revision."""
978
xml_file = self._get_revision_xml_file(revision_id)
981
r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
982
except SyntaxError, e:
983
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
987
assert r.revision_id == revision_id
990
def get_revision_sha1(self, revision_id):
991
"""See Branch.get_revision_sha1."""
992
# In the future, revision entries will be signed. At that
993
# point, it is probably best *not* to include the signature
994
# in the revision hash. Because that lets you re-sign
995
# the revision, (add signatures/remove signatures) and still
996
# have all hash pointers stay consistent.
997
# But for now, just hash the contents.
998
return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
1000
def get_ancestry(self, revision_id):
1001
"""See Branch.get_ancestry."""
1002
if revision_id is None:
1004
w = self._get_inventory_weave()
1005
return [None] + map(w.idx_to_name,
1006
w.inclusions([w.lookup(revision_id)]))
1008
def _get_inventory_weave(self):
1009
return self.control_weaves.get_weave('inventory',
1010
self.get_transaction())
1012
def get_inventory(self, revision_id):
1013
"""See Branch.get_inventory."""
1014
xml = self.get_inventory_xml(revision_id)
1015
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
1017
def get_inventory_xml(self, revision_id):
1018
"""See Branch.get_inventory_xml."""
1020
assert isinstance(revision_id, basestring), type(revision_id)
1021
iw = self._get_inventory_weave()
1022
return iw.get_text(iw.lookup(revision_id))
1024
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
1026
def get_inventory_sha1(self, revision_id):
1027
"""See Branch.get_inventory_sha1."""
1028
return self.get_revision(revision_id).inventory_sha1
1030
def get_revision_inventory(self, revision_id):
1031
"""See Branch.get_revision_inventory."""
1032
# TODO: Unify this with get_inventory()
1033
# bzr 0.0.6 and later imposes the constraint that the inventory_id
1034
# must be the same as its revision, so this is trivial.
1035
if revision_id == None:
1036
# This does not make sense: if there is no revision,
1037
# then it is the current tree inventory surely ?!
1038
# and thus get_root_id() is something that looks at the last
1039
# commit on the branch, and the get_root_id is an inventory check.
1040
raise NotImplementedError
1041
# return Inventory(self.get_root_id())
1043
return self.get_inventory(revision_id)
1046
def revision_history(self):
1047
"""See Branch.revision_history."""
1048
transaction = self.get_transaction()
1049
history = transaction.map.find_revision_history()
1050
if history is not None:
1051
mutter("cache hit for revision-history in %s", self)
1052
return list(history)
1053
history = [l.rstrip('\r\n') for l in
1054
self.controlfile('revision-history', 'r').readlines()]
1055
transaction.map.add_revision_history(history)
1056
# this call is disabled because revision_history is
1057
# not really an object yet, and the transaction is for objects.
1058
# transaction.register_clean(history, precious=True)
1059
return list(history)
1061
def update_revisions(self, other, stop_revision=None):
1062
"""See Branch.update_revisions."""
1063
from bzrlib.fetch import greedy_fetch
1064
if stop_revision is None:
1065
stop_revision = other.last_revision()
1066
### Should this be checking is_ancestor instead of revision_history?
1067
if (stop_revision is not None and
1068
stop_revision in self.revision_history()):
1070
greedy_fetch(to_branch=self, from_branch=other,
1071
revision=stop_revision)
1072
pullable_revs = self.pullable_revisions(other, stop_revision)
1073
if len(pullable_revs) > 0:
1074
self.append_revision(*pullable_revs)
1076
def pullable_revisions(self, other, stop_revision):
1077
"""See Branch.pullable_revisions."""
1078
other_revno = other.revision_id_to_revno(stop_revision)
1080
return self.missing_revisions(other, other_revno)
1081
except DivergedBranches, e:
1083
pullable_revs = get_intervening_revisions(self.last_revision(),
1084
stop_revision, self)
1085
assert self.last_revision() not in pullable_revs
1086
return pullable_revs
1087
except bzrlib.errors.NotAncestor:
1088
if is_ancestor(self.last_revision(), stop_revision, self):
1093
def revision_tree(self, revision_id):
1094
"""See Branch.revision_tree."""
1095
# TODO: refactor this to use an existing revision object
1096
# so we don't need to read it in twice.
1097
if revision_id == None or revision_id == NULL_REVISION:
1100
inv = self.get_revision_inventory(revision_id)
1101
return RevisionTree(self.weave_store, inv, revision_id)
1103
def working_tree(self):
1104
"""See Branch.working_tree."""
1105
from bzrlib.workingtree import WorkingTree
1106
# TODO: In the future, perhaps WorkingTree should utilize Transport
1107
# RobertCollins 20051003 - I don't think it should - working trees are
1108
# much more complex to keep consistent than our careful .bzr subset.
1109
# instead, we should say that working trees are local only, and optimise
1111
if self._transport.base.find('://') != -1:
1112
raise NoWorkingTree(self.base)
1113
return WorkingTree(self.base, branch=self)
1116
def pull(self, source, overwrite=False):
1117
"""See Branch.pull."""
1121
self.update_revisions(source)
1122
except DivergedBranches:
1125
self.set_revision_history(source.revision_history())
1130
def rename_one(self, from_rel, to_rel):
1131
"""See Branch.rename_one."""
1132
tree = self.working_tree()
1133
inv = tree.inventory
1134
if not tree.has_filename(from_rel):
1135
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1136
if tree.has_filename(to_rel):
1137
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1139
file_id = inv.path2id(from_rel)
1141
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1143
if inv.path2id(to_rel):
1144
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1146
to_dir, to_tail = os.path.split(to_rel)
1147
to_dir_id = inv.path2id(to_dir)
1148
if to_dir_id == None and to_dir != '':
1149
raise BzrError("can't determine destination directory id for %r" % to_dir)
1151
mutter("rename_one:")
1152
mutter(" file_id {%s}" % file_id)
1153
mutter(" from_rel %r" % from_rel)
1154
mutter(" to_rel %r" % to_rel)
1155
mutter(" to_dir %r" % to_dir)
1156
mutter(" to_dir_id {%s}" % to_dir_id)
1158
inv.rename(file_id, to_dir_id, to_tail)
1160
from_abs = self.abspath(from_rel)
1161
to_abs = self.abspath(to_rel)
1163
rename(from_abs, to_abs)
1165
raise BzrError("failed to rename %r to %r: %s"
1166
% (from_abs, to_abs, e[1]),
1167
["rename rolled back"])
1169
self.working_tree()._write_inventory(inv)
1172
def move(self, from_paths, to_name):
1173
"""See Branch.move."""
1175
## TODO: Option to move IDs only
1176
assert not isinstance(from_paths, basestring)
1177
tree = self.working_tree()
1178
inv = tree.inventory
1179
to_abs = self.abspath(to_name)
1180
if not isdir(to_abs):
1181
raise BzrError("destination %r is not a directory" % to_abs)
1182
if not tree.has_filename(to_name):
1183
raise BzrError("destination %r not in working directory" % to_abs)
1184
to_dir_id = inv.path2id(to_name)
1185
if to_dir_id == None and to_name != '':
1186
raise BzrError("destination %r is not a versioned directory" % to_name)
1187
to_dir_ie = inv[to_dir_id]
1188
if to_dir_ie.kind not in ('directory', 'root_directory'):
1189
raise BzrError("destination %r is not a directory" % to_abs)
1191
to_idpath = inv.get_idpath(to_dir_id)
1193
for f in from_paths:
1194
if not tree.has_filename(f):
1195
raise BzrError("%r does not exist in working tree" % f)
1196
f_id = inv.path2id(f)
1198
raise BzrError("%r is not versioned" % f)
1199
name_tail = splitpath(f)[-1]
1200
dest_path = appendpath(to_name, name_tail)
1201
if tree.has_filename(dest_path):
1202
raise BzrError("destination %r already exists" % dest_path)
1203
if f_id in to_idpath:
1204
raise BzrError("can't move %r to a subdirectory of itself" % f)
1206
# OK, so there's a race here, it's possible that someone will
1207
# create a file in this interval and then the rename might be
1208
# left half-done. But we should have caught most problems.
1210
for f in from_paths:
1211
name_tail = splitpath(f)[-1]
1212
dest_path = appendpath(to_name, name_tail)
1213
result.append((f, dest_path))
1214
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1216
rename(self.abspath(f), self.abspath(dest_path))
1218
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1219
["rename rolled back"])
1221
self.working_tree()._write_inventory(inv)
1224
def get_parent(self):
1225
"""See Branch.get_parent."""
1227
_locs = ['parent', 'pull', 'x-pull']
1230
return self.controlfile(l, 'r').read().strip('\n')
1232
if e.errno != errno.ENOENT:
1236
def get_push_location(self):
1237
"""See Branch.get_push_location."""
1238
config = bzrlib.config.BranchConfig(self)
1239
push_loc = config.get_user_option('push_location')
1242
def set_push_location(self, location):
1243
"""See Branch.set_push_location."""
1244
config = bzrlib.config.LocationConfig(self.base)
1245
config.set_user_option('push_location', location)
1248
def set_parent(self, url):
1249
"""See Branch.set_parent."""
1250
# TODO: Maybe delete old location files?
1251
from bzrlib.atomicfile import AtomicFile
1252
f = AtomicFile(self.controlfilename('parent'))
1259
def tree_config(self):
1260
return TreeConfig(self)
1262
def sign_revision(self, revision_id, gpg_strategy):
1263
"""See Branch.sign_revision."""
1264
plaintext = Testament.from_revision(self, revision_id).as_short_text()
1265
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1268
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1269
"""See Branch.store_revision_signature."""
1270
self.revision_store.add(StringIO(gpg_strategy.sign(plaintext)),
1274
class ScratchBranch(BzrBranch):
1275
"""Special test class: a branch that cleans up after itself.
1277
>>> b = ScratchBranch()
1281
>>> b._transport.__del__()
1286
def __init__(self, files=[], dirs=[], transport=None):
1287
"""Make a test branch.
1289
This creates a temporary directory and runs init-tree in it.
1291
If any files are listed, they are created in the working copy.
1293
if transport is None:
1294
transport = bzrlib.transport.local.ScratchTransport()
1295
super(ScratchBranch, self).__init__(transport, init=True)
1297
super(ScratchBranch, self).__init__(transport)
1300
self._transport.mkdir(d)
1303
self._transport.put(f, 'content of %s' % f)
1308
>>> orig = ScratchBranch(files=["file1", "file2"])
1309
>>> clone = orig.clone()
1310
>>> if os.name != 'nt':
1311
... os.path.samefile(orig.base, clone.base)
1313
... orig.base == clone.base
1316
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1319
from shutil import copytree
1320
from tempfile import mkdtemp
1323
copytree(self.base, base, symlinks=True)
1324
return ScratchBranch(
1325
transport=bzrlib.transport.local.ScratchTransport(base))
1328
######################################################################
1332
def is_control_file(filename):
1333
## FIXME: better check
1334
filename = os.path.normpath(filename)
1335
while filename != '':
1336
head, tail = os.path.split(filename)
1337
## mutter('check %r for control file' % ((head, tail), ))
1338
if tail == bzrlib.BZRDIR:
1340
if filename == head:
1347
def gen_file_id(name):
1348
"""Return new file id.
1350
This should probably generate proper UUIDs, but for the moment we
1351
cope with just randomness because running uuidgen every time is
1354
from binascii import hexlify
1355
from time import time
1357
# get last component
1358
idx = name.rfind('/')
1360
name = name[idx+1 : ]
1361
idx = name.rfind('\\')
1363
name = name[idx+1 : ]
1365
# make it not a hidden file
1366
name = name.lstrip('.')
1368
# remove any wierd characters; we don't escape them but rather
1369
# just pull them out
1370
name = re.sub(r'[^\w.]', '', name)
1372
s = hexlify(rand_bytes(8))
1373
return '-'.join((name, compact_date(time()), s))
1377
"""Return a new tree-root file id."""
1378
return gen_file_id('TREE_ROOT')