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# Copyright (C) 2005, 2006, 2007 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 cStringIO import StringIO
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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revision as _mod_revision,
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from bzrlib.bundle import serializer
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from bzrlib.revisiontree import RevisionTree
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from bzrlib.store.versioned import VersionedFileStore
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from bzrlib.store.text import TextStore
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from bzrlib.testament import Testament
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.inter import InterObject
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from bzrlib.inventory import Inventory, InventoryDirectory, ROOT_ID
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from bzrlib.symbol_versioning import (
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from bzrlib.trace import mutter, note, warning
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# Old formats display a warning, but only once
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_deprecation_warning_done = False
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######################################################################
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class Repository(object):
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"""Repository holding history for one or more branches.
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The repository holds and retrieves historical information including
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revisions and file history. It's normally accessed only by the Branch,
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which views a particular line of development through that history.
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The Repository builds on top of Stores and a Transport, which respectively
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describe the disk data format and the way of accessing the (possibly
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_file_ids_altered_regex = lazy_regex.lazy_compile(
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r'file_id="(?P<file_id>[^"]+)"'
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r'.*revision="(?P<revision_id>[^"]+)"'
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def add_inventory(self, revision_id, inv, parents):
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"""Add the inventory inv to the repository as revision_id.
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:param parents: The revision ids of the parents that revision_id
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is known to have and are in the repository already.
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returns the sha1 of the serialized inventory.
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revision_id = osutils.safe_revision_id(revision_id)
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_mod_revision.check_not_reserved_id(revision_id)
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assert inv.revision_id is None or inv.revision_id == revision_id, \
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"Mismatch between inventory revision" \
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" id and insertion revid (%r, %r)" % (inv.revision_id, revision_id)
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assert inv.root is not None
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inv_text = self.serialise_inventory(inv)
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inv_sha1 = osutils.sha_string(inv_text)
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inv_vf = self.control_weaves.get_weave('inventory',
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self.get_transaction())
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self._inventory_add_lines(inv_vf, revision_id, parents,
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osutils.split_lines(inv_text))
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def _inventory_add_lines(self, inv_vf, revision_id, parents, lines):
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for parent in parents:
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final_parents.append(parent)
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inv_vf.add_lines(revision_id, final_parents, lines)
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def add_revision(self, revision_id, rev, inv=None, config=None):
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"""Add rev to the revision store as revision_id.
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:param revision_id: the revision id to use.
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:param rev: The revision object.
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:param inv: The inventory for the revision. if None, it will be looked
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up in the inventory storer
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:param config: If None no digital signature will be created.
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If supplied its signature_needed method will be used
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to determine if a signature should be made.
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revision_id = osutils.safe_revision_id(revision_id)
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# TODO: jam 20070210 Shouldn't we check rev.revision_id and
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_mod_revision.check_not_reserved_id(revision_id)
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if config is not None and config.signature_needed():
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inv = self.get_inventory(revision_id)
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plaintext = Testament(rev, inv).as_short_text()
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self.store_revision_signature(
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gpg.GPGStrategy(config), plaintext, revision_id)
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if not revision_id in self.get_inventory_weave():
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raise errors.WeaveRevisionNotPresent(revision_id,
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self.get_inventory_weave())
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# yes, this is not suitable for adding with ghosts.
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self.add_inventory(revision_id, inv, rev.parent_ids)
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self._revision_store.add_revision(rev, self.get_transaction())
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def _add_revision_text(self, revision_id, text):
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revision = self._revision_store._serializer.read_revision_from_string(
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self._revision_store._add_revision(revision, StringIO(text),
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self.get_transaction())
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def _all_possible_ids(self):
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"""Return all the possible revisions that we could find."""
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return self.get_inventory_weave().versions()
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def all_revision_ids(self):
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"""Returns a list of all the revision ids in the repository.
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This is deprecated because code should generally work on the graph
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reachable from a particular revision, and ignore any other revisions
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that might be present. There is no direct replacement method.
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return self._all_revision_ids()
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def _all_revision_ids(self):
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"""Returns a list of all the revision ids in the repository.
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These are in as much topological order as the underlying store can
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present: for weaves ghosts may lead to a lack of correctness until
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the reweave updates the parents list.
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if self._revision_store.text_store.listable():
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return self._revision_store.all_revision_ids(self.get_transaction())
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result = self._all_possible_ids()
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# TODO: jam 20070210 Ensure that _all_possible_ids returns non-unicode
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# ids. (It should, since _revision_store's API should change to
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# return utf8 revision_ids)
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return self._eliminate_revisions_not_present(result)
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def break_lock(self):
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"""Break a lock if one is present from another instance.
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Uses the ui factory to ask for confirmation if the lock may be from
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self.control_files.break_lock()
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def _eliminate_revisions_not_present(self, revision_ids):
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"""Check every revision id in revision_ids to see if we have it.
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Returns a set of the present revisions.
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for id in revision_ids:
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if self.has_revision(id):
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def create(a_bzrdir):
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"""Construct the current default format repository in a_bzrdir."""
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return RepositoryFormat.get_default_format().initialize(a_bzrdir)
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def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
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"""instantiate a Repository.
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:param _format: The format of the repository on disk.
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:param a_bzrdir: The BzrDir of the repository.
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In the future we will have a single api for all stores for
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getting file texts, inventories and revisions, then
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this construct will accept instances of those things.
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super(Repository, self).__init__()
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self._format = _format
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# the following are part of the public API for Repository:
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self.bzrdir = a_bzrdir
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self.control_files = control_files
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self._revision_store = _revision_store
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self.text_store = text_store
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# backwards compatibility
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self.weave_store = text_store
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# not right yet - should be more semantically clear ?
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self.control_store = control_store
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self.control_weaves = control_store
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# TODO: make sure to construct the right store classes, etc, depending
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# on whether escaping is required.
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self._warn_if_deprecated()
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return '%s(%r)' % (self.__class__.__name__,
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self.bzrdir.transport.base)
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return self.control_files.is_locked()
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def lock_write(self, token=None):
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"""Lock this repository for writing.
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:param token: if this is already locked, then lock_write will fail
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unless the token matches the existing lock.
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:returns: a token if this instance supports tokens, otherwise None.
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:raises TokenLockingNotSupported: when a token is given but this
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instance doesn't support using token locks.
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:raises MismatchedToken: if the specified token doesn't match the token
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of the existing lock.
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A token should be passed in if you know that you have locked the object
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some other way, and need to synchronise this object's state with that
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XXX: this docstring is duplicated in many places, e.g. lockable_files.py
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return self.control_files.lock_write(token=token)
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self.control_files.lock_read()
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def get_physical_lock_status(self):
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return self.control_files.get_physical_lock_status()
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def leave_lock_in_place(self):
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"""Tell this repository not to release the physical lock when this
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If lock_write doesn't return a token, then this method is not supported.
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self.control_files.leave_in_place()
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def dont_leave_lock_in_place(self):
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"""Tell this repository to release the physical lock when this
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object is unlocked, even if it didn't originally acquire it.
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If lock_write doesn't return a token, then this method is not supported.
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self.control_files.dont_leave_in_place()
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def gather_stats(self, revid=None, committers=None):
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"""Gather statistics from a revision id.
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:param revid: The revision id to gather statistics from, if None, then
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no revision specific statistics are gathered.
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:param committers: Optional parameter controlling whether to grab
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a count of committers from the revision specific statistics.
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:return: A dictionary of statistics. Currently this contains:
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committers: The number of committers if requested.
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firstrev: A tuple with timestamp, timezone for the penultimate left
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most ancestor of revid, if revid is not the NULL_REVISION.
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latestrev: A tuple with timestamp, timezone for revid, if revid is
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not the NULL_REVISION.
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revisions: The total revision count in the repository.
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size: An estimate disk size of the repository in bytes.
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if revid and committers:
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result['committers'] = 0
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if revid and revid != _mod_revision.NULL_REVISION:
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all_committers = set()
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revisions = self.get_ancestry(revid)
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# pop the leading None
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first_revision = None
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# ignore the revisions in the middle - just grab first and last
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revisions = revisions[0], revisions[-1]
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for revision in self.get_revisions(revisions):
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if not first_revision:
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first_revision = revision
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all_committers.add(revision.committer)
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last_revision = revision
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result['committers'] = len(all_committers)
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result['firstrev'] = (first_revision.timestamp,
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first_revision.timezone)
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result['latestrev'] = (last_revision.timestamp,
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last_revision.timezone)
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# now gather global repository information
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if self.bzrdir.root_transport.listable():
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c, t = self._revision_store.total_size(self.get_transaction())
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result['revisions'] = c
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def missing_revision_ids(self, other, revision_id=None):
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"""Return the revision ids that other has that this does not.
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These are returned in topological order.
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revision_id: only return revision ids included by revision_id.
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revision_id = osutils.safe_revision_id(revision_id)
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return InterRepository.get(other, self).missing_revision_ids(revision_id)
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"""Open the repository rooted at base.
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For instance, if the repository is at URL/.bzr/repository,
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Repository.open(URL) -> a Repository instance.
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control = bzrdir.BzrDir.open(base)
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return control.open_repository()
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def copy_content_into(self, destination, revision_id=None):
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"""Make a complete copy of the content in self into destination.
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This is a destructive operation! Do not use it on existing
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revision_id = osutils.safe_revision_id(revision_id)
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return InterRepository.get(self, destination).copy_content(revision_id)
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def fetch(self, source, revision_id=None, pb=None):
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"""Fetch the content required to construct revision_id from source.
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If revision_id is None all content is copied.
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revision_id = osutils.safe_revision_id(revision_id)
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inter = InterRepository.get(source, self)
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return inter.fetch(revision_id=revision_id, pb=pb)
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except NotImplementedError:
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raise errors.IncompatibleRepositories(source, self)
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def create_bundle(self, target, base, fileobj, format=None):
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return serializer.write_bundle(self, target, base, fileobj, format)
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def get_commit_builder(self, branch, parents, config, timestamp=None,
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timezone=None, committer=None, revprops=None,
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"""Obtain a CommitBuilder for this repository.
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:param branch: Branch to commit to.
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:param parents: Revision ids of the parents of the new revision.
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:param config: Configuration to use.
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:param timestamp: Optional timestamp recorded for commit.
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:param timezone: Optional timezone for timestamp.
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:param committer: Optional committer to set for commit.
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:param revprops: Optional dictionary of revision properties.
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:param revision_id: Optional revision id.
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revision_id = osutils.safe_revision_id(revision_id)
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return _CommitBuilder(self, parents, config, timestamp, timezone,
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committer, revprops, revision_id)
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self.control_files.unlock()
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def clone(self, a_bzrdir, revision_id=None):
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"""Clone this repository into a_bzrdir using the current format.
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Currently no check is made that the format of this repository and
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the bzrdir format are compatible. FIXME RBC 20060201.
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:return: The newly created destination repository.
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# TODO: deprecate after 0.16; cloning this with all its settings is
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# probably not very useful -- mbp 20070423
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dest_repo = self._create_sprouting_repo(a_bzrdir, shared=self.is_shared())
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self.copy_content_into(dest_repo, revision_id)
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def sprout(self, to_bzrdir, revision_id=None):
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"""Create a descendent repository for new development.
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Unlike clone, this does not copy the settings of the repository.
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dest_repo = self._create_sprouting_repo(to_bzrdir, shared=False)
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dest_repo.fetch(self, revision_id=revision_id)
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def _create_sprouting_repo(self, a_bzrdir, shared):
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if not isinstance(a_bzrdir._format, self.bzrdir._format.__class__):
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# use target default format.
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dest_repo = a_bzrdir.create_repository()
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# Most control formats need the repository to be specifically
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# created, but on some old all-in-one formats it's not needed
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dest_repo = self._format.initialize(a_bzrdir, shared=shared)
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except errors.UninitializableFormat:
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dest_repo = a_bzrdir.open_repository()
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def has_revision(self, revision_id):
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"""True if this repository has a copy of the revision."""
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revision_id = osutils.safe_revision_id(revision_id)
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return self._revision_store.has_revision_id(revision_id,
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self.get_transaction())
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def get_revision_reconcile(self, revision_id):
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"""'reconcile' helper routine that allows access to a revision always.
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This variant of get_revision does not cross check the weave graph
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against the revision one as get_revision does: but it should only
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be used by reconcile, or reconcile-alike commands that are correcting
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or testing the revision graph.
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if not revision_id or not isinstance(revision_id, basestring):
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raise errors.InvalidRevisionId(revision_id=revision_id,
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return self.get_revisions([revision_id])[0]
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def get_revisions(self, revision_ids):
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revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
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revs = self._revision_store.get_revisions(revision_ids,
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self.get_transaction())
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assert not isinstance(rev.revision_id, unicode)
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for parent_id in rev.parent_ids:
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assert not isinstance(parent_id, unicode)
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def get_revision_xml(self, revision_id):
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# TODO: jam 20070210 This shouldn't be necessary since get_revision
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# would have already do it.
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# TODO: jam 20070210 Just use _serializer.write_revision_to_string()
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revision_id = osutils.safe_revision_id(revision_id)
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rev = self.get_revision(revision_id)
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# the current serializer..
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self._revision_store._serializer.write_revision(rev, rev_tmp)
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return rev_tmp.getvalue()
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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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# TODO: jam 20070210 get_revision_reconcile should do this for us
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revision_id = osutils.safe_revision_id(revision_id)
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r = self.get_revision_reconcile(revision_id)
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# weave corruption can lead to absent revision markers that should be
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# the following test is reasonably cheap (it needs a single weave read)
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# and the weave is cached in read transactions. In write transactions
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# it is not cached but typically we only read a small number of
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# revisions. For knits when they are introduced we will probably want
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# to ensure that caching write transactions are in use.
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inv = self.get_inventory_weave()
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self._check_revision_parents(r, inv)
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def get_deltas_for_revisions(self, revisions):
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"""Produce a generator of revision deltas.
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Note that the input is a sequence of REVISIONS, not revision_ids.
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Trees will be held in memory until the generator exits.
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Each delta is relative to the revision's lefthand predecessor.
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required_trees = set()
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for revision in revisions:
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required_trees.add(revision.revision_id)
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required_trees.update(revision.parent_ids[:1])
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trees = dict((t.get_revision_id(), t) for
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t in self.revision_trees(required_trees))
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for revision in revisions:
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if not revision.parent_ids:
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old_tree = self.revision_tree(None)
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old_tree = trees[revision.parent_ids[0]]
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yield trees[revision.revision_id].changes_from(old_tree)
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def get_revision_delta(self, revision_id):
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"""Return the delta for one revision.
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The delta is relative to the left-hand predecessor of the
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r = self.get_revision(revision_id)
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return list(self.get_deltas_for_revisions([r]))[0]
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def _check_revision_parents(self, revision, inventory):
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"""Private to Repository and Fetch.
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This checks the parentage of revision in an inventory weave for
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consistency and is only applicable to inventory-weave-for-ancestry
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using repository formats & fetchers.
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weave_parents = inventory.get_parents(revision.revision_id)
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weave_names = inventory.versions()
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for parent_id in revision.parent_ids:
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if parent_id in weave_names:
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# this parent must not be a ghost.
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if not parent_id in weave_parents:
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raise errors.CorruptRepository(self)
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def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
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revision_id = osutils.safe_revision_id(revision_id)
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signature = gpg_strategy.sign(plaintext)
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self._revision_store.add_revision_signature_text(revision_id,
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self.get_transaction())
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def fileids_altered_by_revision_ids(self, revision_ids):
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"""Find the file ids and versions affected by revisions.
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:param revisions: an iterable containing revision ids.
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:return: a dictionary mapping altered file-ids to an iterable of
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revision_ids. Each altered file-ids has the exact revision_ids that
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altered it listed explicitly.
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assert self._serializer.support_altered_by_hack, \
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("fileids_altered_by_revision_ids only supported for branches "
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"which store inventory as unnested xml, not on %r" % self)
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selected_revision_ids = set(osutils.safe_revision_id(r)
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for r in revision_ids)
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w = self.get_inventory_weave()
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# this code needs to read every new line in every inventory for the
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# inventories [revision_ids]. Seeing a line twice is ok. Seeing a line
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# not present in one of those inventories is unnecessary but not
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# harmful because we are filtering by the revision id marker in the
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# inventory lines : we only select file ids altered in one of those
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# revisions. We don't need to see all lines in the inventory because
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# only those added in an inventory in rev X can contain a revision=X
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unescape_revid_cache = {}
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unescape_fileid_cache = {}
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# jam 20061218 In a big fetch, this handles hundreds of thousands
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# of lines, so it has had a lot of inlining and optimizing done.
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# Sorry that it is a little bit messy.
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# Move several functions to be local variables, since this is a long
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search = self._file_ids_altered_regex.search
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unescape = _unescape_xml
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setdefault = result.setdefault
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pb = ui.ui_factory.nested_progress_bar()
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for line in w.iter_lines_added_or_present_in_versions(
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selected_revision_ids, pb=pb):
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# One call to match.group() returning multiple items is quite a
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# bit faster than 2 calls to match.group() each returning 1
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file_id, revision_id = match.group('file_id', 'revision_id')
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# Inlining the cache lookups helps a lot when you make 170,000
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# lines and 350k ids, versus 8.4 unique ids.
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# Using a cache helps in 2 ways:
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# 1) Avoids unnecessary decoding calls
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# 2) Re-uses cached strings, which helps in future set and
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# (2) is enough that removing encoding entirely along with
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# the cache (so we are using plain strings) results in no
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# performance improvement.
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revision_id = unescape_revid_cache[revision_id]
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unescaped = unescape(revision_id)
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unescape_revid_cache[revision_id] = unescaped
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revision_id = unescaped
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if revision_id in selected_revision_ids:
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file_id = unescape_fileid_cache[file_id]
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unescaped = unescape(file_id)
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unescape_fileid_cache[file_id] = unescaped
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setdefault(file_id, set()).add(revision_id)
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def get_inventory_weave(self):
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return self.control_weaves.get_weave('inventory',
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self.get_transaction())
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def get_inventory(self, revision_id):
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"""Get Inventory object by hash."""
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# TODO: jam 20070210 Technically we don't need to sanitize, since all
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# called functions must sanitize.
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revision_id = osutils.safe_revision_id(revision_id)
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return self.deserialise_inventory(
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revision_id, self.get_inventory_xml(revision_id))
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def deserialise_inventory(self, revision_id, xml):
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"""Transform the xml into an inventory object.
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:param revision_id: The expected revision id of the inventory.
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:param xml: A serialised inventory.
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revision_id = osutils.safe_revision_id(revision_id)
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result = self._serializer.read_inventory_from_string(xml)
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result.root.revision = revision_id
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def serialise_inventory(self, inv):
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return self._serializer.write_inventory_to_string(inv)
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def get_serializer_format(self):
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return self._serializer.format_num
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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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revision_id = osutils.safe_revision_id(revision_id)
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assert isinstance(revision_id, str), type(revision_id)
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iw = self.get_inventory_weave()
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return iw.get_text(revision_id)
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raise errors.HistoryMissing(self, 'inventory', revision_id)
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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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# TODO: jam 20070210 Shouldn't this be deprecated / removed?
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revision_id = osutils.safe_revision_id(revision_id)
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return self.get_revision(revision_id).inventory_sha1
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def get_revision_graph(self, revision_id=None):
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"""Return a dictionary containing the revision graph.
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:param revision_id: The revision_id to get a graph from. If None, then
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the entire revision graph is returned. This is a deprecated mode of
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operation and will be removed in the future.
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:return: a dictionary of revision_id->revision_parents_list.
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# special case NULL_REVISION
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if revision_id == _mod_revision.NULL_REVISION:
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revision_id = osutils.safe_revision_id(revision_id)
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a_weave = self.get_inventory_weave()
692
all_revisions = self._eliminate_revisions_not_present(
694
entire_graph = dict([(node, a_weave.get_parents(node)) for
695
node in all_revisions])
696
if revision_id is None:
698
elif revision_id not in entire_graph:
699
raise errors.NoSuchRevision(self, revision_id)
701
# add what can be reached from revision_id
703
pending = set([revision_id])
704
while len(pending) > 0:
706
result[node] = entire_graph[node]
707
for revision_id in result[node]:
708
if revision_id not in result:
709
pending.add(revision_id)
713
def get_revision_graph_with_ghosts(self, revision_ids=None):
714
"""Return a graph of the revisions with ghosts marked as applicable.
716
:param revision_ids: an iterable of revisions to graph or None for all.
717
:return: a Graph object with the graph reachable from revision_ids.
719
result = deprecated_graph.Graph()
721
pending = set(self.all_revision_ids())
724
pending = set(osutils.safe_revision_id(r) for r in revision_ids)
725
# special case NULL_REVISION
726
if _mod_revision.NULL_REVISION in pending:
727
pending.remove(_mod_revision.NULL_REVISION)
728
required = set(pending)
731
revision_id = pending.pop()
733
rev = self.get_revision(revision_id)
734
except errors.NoSuchRevision:
735
if revision_id in required:
738
result.add_ghost(revision_id)
740
for parent_id in rev.parent_ids:
741
# is this queued or done ?
742
if (parent_id not in pending and
743
parent_id not in done):
745
pending.add(parent_id)
746
result.add_node(revision_id, rev.parent_ids)
747
done.add(revision_id)
750
def _get_history_vf(self):
751
"""Get a versionedfile whose history graph reflects all revisions.
753
For weave repositories, this is the inventory weave.
755
return self.get_inventory_weave()
757
def iter_reverse_revision_history(self, revision_id):
758
"""Iterate backwards through revision ids in the lefthand history
760
:param revision_id: The revision id to start with. All its lefthand
761
ancestors will be traversed.
763
revision_id = osutils.safe_revision_id(revision_id)
764
if revision_id in (None, _mod_revision.NULL_REVISION):
766
next_id = revision_id
767
versionedfile = self._get_history_vf()
770
parents = versionedfile.get_parents(next_id)
771
if len(parents) == 0:
777
def get_revision_inventory(self, revision_id):
778
"""Return inventory of a past revision."""
779
# TODO: Unify this with get_inventory()
780
# bzr 0.0.6 and later imposes the constraint that the inventory_id
781
# must be the same as its revision, so this is trivial.
782
if revision_id is None:
783
# This does not make sense: if there is no revision,
784
# then it is the current tree inventory surely ?!
785
# and thus get_root_id() is something that looks at the last
786
# commit on the branch, and the get_root_id is an inventory check.
787
raise NotImplementedError
788
# return Inventory(self.get_root_id())
790
return self.get_inventory(revision_id)
794
"""Return True if this repository is flagged as a shared repository."""
795
raise NotImplementedError(self.is_shared)
798
def reconcile(self, other=None, thorough=False):
799
"""Reconcile this repository."""
800
from bzrlib.reconcile import RepoReconciler
801
reconciler = RepoReconciler(self, thorough=thorough)
802
reconciler.reconcile()
806
def revision_tree(self, revision_id):
807
"""Return Tree for a revision on this branch.
809
`revision_id` may be None for the empty tree revision.
811
# TODO: refactor this to use an existing revision object
812
# so we don't need to read it in twice.
813
if revision_id is None or revision_id == _mod_revision.NULL_REVISION:
814
return RevisionTree(self, Inventory(root_id=None),
815
_mod_revision.NULL_REVISION)
817
revision_id = osutils.safe_revision_id(revision_id)
818
inv = self.get_revision_inventory(revision_id)
819
return RevisionTree(self, inv, revision_id)
822
def revision_trees(self, revision_ids):
823
"""Return Tree for a revision on this branch.
825
`revision_id` may not be None or 'null:'"""
826
assert None not in revision_ids
827
assert _mod_revision.NULL_REVISION not in revision_ids
828
texts = self.get_inventory_weave().get_texts(revision_ids)
829
for text, revision_id in zip(texts, revision_ids):
830
inv = self.deserialise_inventory(revision_id, text)
831
yield RevisionTree(self, inv, revision_id)
834
def get_ancestry(self, revision_id, topo_sorted=True):
835
"""Return a list of revision-ids integrated by a revision.
837
The first element of the list is always None, indicating the origin
838
revision. This might change when we have history horizons, or
839
perhaps we should have a new API.
841
This is topologically sorted.
843
if revision_id is None or revision_id == _mod_revision.NULL_REVISION:
845
revision_id = osutils.safe_revision_id(revision_id)
846
if not self.has_revision(revision_id):
847
raise errors.NoSuchRevision(self, revision_id)
848
w = self.get_inventory_weave()
849
candidates = w.get_ancestry(revision_id, topo_sorted)
850
return [None] + candidates # self._eliminate_revisions_not_present(candidates)
853
def print_file(self, file, revision_id):
854
"""Print `file` to stdout.
856
FIXME RBC 20060125 as John Meinel points out this is a bad api
857
- it writes to stdout, it assumes that that is valid etc. Fix
858
by creating a new more flexible convenience function.
860
revision_id = osutils.safe_revision_id(revision_id)
861
tree = self.revision_tree(revision_id)
862
# use inventory as it was in that revision
863
file_id = tree.inventory.path2id(file)
865
# TODO: jam 20060427 Write a test for this code path
866
# it had a bug in it, and was raising the wrong
868
raise errors.BzrError("%r is not present in revision %s" % (file, revision_id))
869
tree.print_file(file_id)
871
def get_transaction(self):
872
return self.control_files.get_transaction()
874
def revision_parents(self, revision_id):
875
revision_id = osutils.safe_revision_id(revision_id)
876
return self.get_inventory_weave().parent_names(revision_id)
878
def get_parents(self, revision_ids):
879
"""See StackedParentsProvider.get_parents"""
881
for revision_id in revision_ids:
882
if revision_id == _mod_revision.NULL_REVISION:
886
parents = self.get_revision(revision_id).parent_ids
887
except errors.NoSuchRevision:
890
if len(parents) == 0:
891
parents = [_mod_revision.NULL_REVISION]
892
parents_list.append(parents)
895
def _make_parents_provider(self):
898
def get_graph(self, other_repository=None):
899
"""Return the graph walker for this repository format"""
900
parents_provider = self._make_parents_provider()
901
if (other_repository is not None and
902
other_repository.bzrdir.transport.base !=
903
self.bzrdir.transport.base):
904
parents_provider = graph._StackedParentsProvider(
905
[parents_provider, other_repository._make_parents_provider()])
906
return graph.Graph(parents_provider)
909
def set_make_working_trees(self, new_value):
910
"""Set the policy flag for making working trees when creating branches.
912
This only applies to branches that use this repository.
914
The default is 'True'.
915
:param new_value: True to restore the default, False to disable making
918
raise NotImplementedError(self.set_make_working_trees)
920
def make_working_trees(self):
921
"""Returns the policy for making working trees on new branches."""
922
raise NotImplementedError(self.make_working_trees)
925
def sign_revision(self, revision_id, gpg_strategy):
926
revision_id = osutils.safe_revision_id(revision_id)
927
plaintext = Testament.from_revision(self, revision_id).as_short_text()
928
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
931
def has_signature_for_revision_id(self, revision_id):
932
"""Query for a revision signature for revision_id in the repository."""
933
revision_id = osutils.safe_revision_id(revision_id)
934
return self._revision_store.has_signature(revision_id,
935
self.get_transaction())
938
def get_signature_text(self, revision_id):
939
"""Return the text for a signature."""
940
revision_id = osutils.safe_revision_id(revision_id)
941
return self._revision_store.get_signature_text(revision_id,
942
self.get_transaction())
945
def check(self, revision_ids):
946
"""Check consistency of all history of given revision_ids.
948
Different repository implementations should override _check().
950
:param revision_ids: A non-empty list of revision_ids whose ancestry
951
will be checked. Typically the last revision_id of a branch.
954
raise ValueError("revision_ids must be non-empty in %s.check"
956
revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
957
return self._check(revision_ids)
959
def _check(self, revision_ids):
960
result = check.Check(self)
964
def _warn_if_deprecated(self):
965
global _deprecation_warning_done
966
if _deprecation_warning_done:
968
_deprecation_warning_done = True
969
warning("Format %s for %s is deprecated - please use 'bzr upgrade' to get better performance"
970
% (self._format, self.bzrdir.transport.base))
972
def supports_rich_root(self):
973
return self._format.rich_root_data
975
def _check_ascii_revisionid(self, revision_id, method):
976
"""Private helper for ascii-only repositories."""
977
# weave repositories refuse to store revisionids that are non-ascii.
978
if revision_id is not None:
979
# weaves require ascii revision ids.
980
if isinstance(revision_id, unicode):
982
revision_id.encode('ascii')
983
except UnicodeEncodeError:
984
raise errors.NonAsciiRevisionId(method, self)
987
revision_id.decode('ascii')
988
except UnicodeDecodeError:
989
raise errors.NonAsciiRevisionId(method, self)
993
# remove these delegates a while after bzr 0.15
994
def __make_delegated(name, from_module):
995
def _deprecated_repository_forwarder():
996
symbol_versioning.warn('%s moved to %s in bzr 0.15'
997
% (name, from_module),
1000
m = __import__(from_module, globals(), locals(), [name])
1002
return getattr(m, name)
1003
except AttributeError:
1004
raise AttributeError('module %s has no name %s'
1006
globals()[name] = _deprecated_repository_forwarder
1009
'AllInOneRepository',
1010
'WeaveMetaDirRepository',
1011
'PreSplitOutRepositoryFormat',
1012
'RepositoryFormat4',
1013
'RepositoryFormat5',
1014
'RepositoryFormat6',
1015
'RepositoryFormat7',
1017
__make_delegated(_name, 'bzrlib.repofmt.weaverepo')
1021
'RepositoryFormatKnit',
1022
'RepositoryFormatKnit1',
1024
__make_delegated(_name, 'bzrlib.repofmt.knitrepo')
1027
def install_revision(repository, rev, revision_tree):
1028
"""Install all revision data into a repository."""
1029
present_parents = []
1031
for p_id in rev.parent_ids:
1032
if repository.has_revision(p_id):
1033
present_parents.append(p_id)
1034
parent_trees[p_id] = repository.revision_tree(p_id)
1036
parent_trees[p_id] = repository.revision_tree(None)
1038
inv = revision_tree.inventory
1039
entries = inv.iter_entries()
1040
# backwards compatability hack: skip the root id.
1041
if not repository.supports_rich_root():
1042
path, root = entries.next()
1043
if root.revision != rev.revision_id:
1044
raise errors.IncompatibleRevision(repr(repository))
1045
# Add the texts that are not already present
1046
for path, ie in entries:
1047
w = repository.weave_store.get_weave_or_empty(ie.file_id,
1048
repository.get_transaction())
1049
if ie.revision not in w:
1051
# FIXME: TODO: The following loop *may* be overlapping/duplicate
1052
# with InventoryEntry.find_previous_heads(). if it is, then there
1053
# is a latent bug here where the parents may have ancestors of each
1055
for revision, tree in parent_trees.iteritems():
1056
if ie.file_id not in tree:
1058
parent_id = tree.inventory[ie.file_id].revision
1059
if parent_id in text_parents:
1061
text_parents.append(parent_id)
1063
vfile = repository.weave_store.get_weave_or_empty(ie.file_id,
1064
repository.get_transaction())
1065
lines = revision_tree.get_file(ie.file_id).readlines()
1066
vfile.add_lines(rev.revision_id, text_parents, lines)
1068
# install the inventory
1069
repository.add_inventory(rev.revision_id, inv, present_parents)
1070
except errors.RevisionAlreadyPresent:
1072
repository.add_revision(rev.revision_id, rev, inv)
1075
class MetaDirRepository(Repository):
1076
"""Repositories in the new meta-dir layout."""
1078
def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
1079
super(MetaDirRepository, self).__init__(_format,
1085
dir_mode = self.control_files._dir_mode
1086
file_mode = self.control_files._file_mode
1089
def is_shared(self):
1090
"""Return True if this repository is flagged as a shared repository."""
1091
return self.control_files._transport.has('shared-storage')
1094
def set_make_working_trees(self, new_value):
1095
"""Set the policy flag for making working trees when creating branches.
1097
This only applies to branches that use this repository.
1099
The default is 'True'.
1100
:param new_value: True to restore the default, False to disable making
1105
self.control_files._transport.delete('no-working-trees')
1106
except errors.NoSuchFile:
1109
self.control_files.put_utf8('no-working-trees', '')
1111
def make_working_trees(self):
1112
"""Returns the policy for making working trees on new branches."""
1113
return not self.control_files._transport.has('no-working-trees')
1116
class RepositoryFormatRegistry(registry.Registry):
1117
"""Registry of RepositoryFormats.
1120
def get(self, format_string):
1121
r = registry.Registry.get(self, format_string)
1127
format_registry = RepositoryFormatRegistry()
1128
"""Registry of formats, indexed by their identifying format string.
1130
This can contain either format instances themselves, or classes/factories that
1131
can be called to obtain one.
1135
#####################################################################
1136
# Repository Formats
1138
class RepositoryFormat(object):
1139
"""A repository format.
1141
Formats provide three things:
1142
* An initialization routine to construct repository data on disk.
1143
* a format string which is used when the BzrDir supports versioned
1145
* an open routine which returns a Repository instance.
1147
Formats are placed in an dict by their format string for reference
1148
during opening. These should be subclasses of RepositoryFormat
1151
Once a format is deprecated, just deprecate the initialize and open
1152
methods on the format class. Do not deprecate the object, as the
1153
object will be created every system load.
1155
Common instance attributes:
1156
_matchingbzrdir - the bzrdir format that the repository format was
1157
originally written to work with. This can be used if manually
1158
constructing a bzrdir and repository, or more commonly for test suite
1163
return "<%s>" % self.__class__.__name__
1165
def __eq__(self, other):
1166
# format objects are generally stateless
1167
return isinstance(other, self.__class__)
1169
def __ne__(self, other):
1170
return not self == other
1173
def find_format(klass, a_bzrdir):
1174
"""Return the format for the repository object in a_bzrdir.
1176
This is used by bzr native formats that have a "format" file in
1177
the repository. Other methods may be used by different types of
1181
transport = a_bzrdir.get_repository_transport(None)
1182
format_string = transport.get("format").read()
1183
return format_registry.get(format_string)
1184
except errors.NoSuchFile:
1185
raise errors.NoRepositoryPresent(a_bzrdir)
1187
raise errors.UnknownFormatError(format=format_string)
1190
def register_format(klass, format):
1191
format_registry.register(format.get_format_string(), format)
1194
def unregister_format(klass, format):
1195
format_registry.remove(format.get_format_string())
1198
def get_default_format(klass):
1199
"""Return the current default format."""
1200
from bzrlib import bzrdir
1201
return bzrdir.format_registry.make_bzrdir('default').repository_format
1203
def _get_control_store(self, repo_transport, control_files):
1204
"""Return the control store for this repository."""
1205
raise NotImplementedError(self._get_control_store)
1207
def get_format_string(self):
1208
"""Return the ASCII format string that identifies this format.
1210
Note that in pre format ?? repositories the format string is
1211
not permitted nor written to disk.
1213
raise NotImplementedError(self.get_format_string)
1215
def get_format_description(self):
1216
"""Return the short description for this format."""
1217
raise NotImplementedError(self.get_format_description)
1219
def _get_revision_store(self, repo_transport, control_files):
1220
"""Return the revision store object for this a_bzrdir."""
1221
raise NotImplementedError(self._get_revision_store)
1223
def _get_text_rev_store(self,
1230
"""Common logic for getting a revision store for a repository.
1232
see self._get_revision_store for the subclass-overridable method to
1233
get the store for a repository.
1235
from bzrlib.store.revision.text import TextRevisionStore
1236
dir_mode = control_files._dir_mode
1237
file_mode = control_files._file_mode
1238
text_store = TextStore(transport.clone(name),
1240
compressed=compressed,
1242
file_mode=file_mode)
1243
_revision_store = TextRevisionStore(text_store, serializer)
1244
return _revision_store
1246
# TODO: this shouldn't be in the base class, it's specific to things that
1247
# use weaves or knits -- mbp 20070207
1248
def _get_versioned_file_store(self,
1253
versionedfile_class=None,
1254
versionedfile_kwargs={},
1256
if versionedfile_class is None:
1257
versionedfile_class = self._versionedfile_class
1258
weave_transport = control_files._transport.clone(name)
1259
dir_mode = control_files._dir_mode
1260
file_mode = control_files._file_mode
1261
return VersionedFileStore(weave_transport, prefixed=prefixed,
1263
file_mode=file_mode,
1264
versionedfile_class=versionedfile_class,
1265
versionedfile_kwargs=versionedfile_kwargs,
1268
def initialize(self, a_bzrdir, shared=False):
1269
"""Initialize a repository of this format in a_bzrdir.
1271
:param a_bzrdir: The bzrdir to put the new repository in it.
1272
:param shared: The repository should be initialized as a sharable one.
1273
:returns: The new repository object.
1275
This may raise UninitializableFormat if shared repository are not
1276
compatible the a_bzrdir.
1278
raise NotImplementedError(self.initialize)
1280
def is_supported(self):
1281
"""Is this format supported?
1283
Supported formats must be initializable and openable.
1284
Unsupported formats may not support initialization or committing or
1285
some other features depending on the reason for not being supported.
1289
def check_conversion_target(self, target_format):
1290
raise NotImplementedError(self.check_conversion_target)
1292
def open(self, a_bzrdir, _found=False):
1293
"""Return an instance of this format for the bzrdir a_bzrdir.
1295
_found is a private parameter, do not use it.
1297
raise NotImplementedError(self.open)
1300
class MetaDirRepositoryFormat(RepositoryFormat):
1301
"""Common base class for the new repositories using the metadir layout."""
1303
rich_root_data = False
1304
supports_tree_reference = False
1305
_matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1308
super(MetaDirRepositoryFormat, self).__init__()
1310
def _create_control_files(self, a_bzrdir):
1311
"""Create the required files and the initial control_files object."""
1312
# FIXME: RBC 20060125 don't peek under the covers
1313
# NB: no need to escape relative paths that are url safe.
1314
repository_transport = a_bzrdir.get_repository_transport(self)
1315
control_files = lockable_files.LockableFiles(repository_transport,
1316
'lock', lockdir.LockDir)
1317
control_files.create_lock()
1318
return control_files
1320
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
1321
"""Upload the initial blank content."""
1322
control_files = self._create_control_files(a_bzrdir)
1323
control_files.lock_write()
1325
control_files._transport.mkdir_multi(dirs,
1326
mode=control_files._dir_mode)
1327
for file, content in files:
1328
control_files.put(file, content)
1329
for file, content in utf8_files:
1330
control_files.put_utf8(file, content)
1332
control_files.put_utf8('shared-storage', '')
1334
control_files.unlock()
1337
# formats which have no format string are not discoverable
1338
# and not independently creatable, so are not registered. They're
1339
# all in bzrlib.repofmt.weaverepo now. When an instance of one of these is
1340
# needed, it's constructed directly by the BzrDir. Non-native formats where
1341
# the repository is not separately opened are similar.
1343
format_registry.register_lazy(
1344
'Bazaar-NG Repository format 7',
1345
'bzrlib.repofmt.weaverepo',
1348
# KEEP in sync with bzrdir.format_registry default, which controls the overall
1349
# default control directory format
1351
format_registry.register_lazy(
1352
'Bazaar-NG Knit Repository Format 1',
1353
'bzrlib.repofmt.knitrepo',
1354
'RepositoryFormatKnit1',
1356
format_registry.default_key = 'Bazaar-NG Knit Repository Format 1'
1358
format_registry.register_lazy(
1359
'Bazaar Knit Repository Format 3 (bzr 0.15)\n',
1360
'bzrlib.repofmt.knitrepo',
1361
'RepositoryFormatKnit3',
1365
class InterRepository(InterObject):
1366
"""This class represents operations taking place between two repositories.
1368
Its instances have methods like copy_content and fetch, and contain
1369
references to the source and target repositories these operations can be
1372
Often we will provide convenience methods on 'repository' which carry out
1373
operations with another repository - they will always forward to
1374
InterRepository.get(other).method_name(parameters).
1378
"""The available optimised InterRepository types."""
1380
def copy_content(self, revision_id=None):
1381
raise NotImplementedError(self.copy_content)
1383
def fetch(self, revision_id=None, pb=None):
1384
"""Fetch the content required to construct revision_id.
1386
The content is copied from self.source to self.target.
1388
:param revision_id: if None all content is copied, if NULL_REVISION no
1390
:param pb: optional progress bar to use for progress reports. If not
1391
provided a default one will be created.
1393
Returns the copied revision count and the failed revisions in a tuple:
1396
raise NotImplementedError(self.fetch)
1399
def missing_revision_ids(self, revision_id=None):
1400
"""Return the revision ids that source has that target does not.
1402
These are returned in topological order.
1404
:param revision_id: only return revision ids included by this
1407
# generic, possibly worst case, slow code path.
1408
target_ids = set(self.target.all_revision_ids())
1409
if revision_id is not None:
1410
# TODO: jam 20070210 InterRepository is internal enough that it
1411
# should assume revision_ids are already utf-8
1412
revision_id = osutils.safe_revision_id(revision_id)
1413
source_ids = self.source.get_ancestry(revision_id)
1414
assert source_ids[0] is None
1417
source_ids = self.source.all_revision_ids()
1418
result_set = set(source_ids).difference(target_ids)
1419
# this may look like a no-op: its not. It preserves the ordering
1420
# other_ids had while only returning the members from other_ids
1421
# that we've decided we need.
1422
return [rev_id for rev_id in source_ids if rev_id in result_set]
1425
class InterSameDataRepository(InterRepository):
1426
"""Code for converting between repositories that represent the same data.
1428
Data format and model must match for this to work.
1432
def _get_repo_format_to_test(self):
1433
"""Repository format for testing with."""
1434
return RepositoryFormat.get_default_format()
1437
def is_compatible(source, target):
1438
if source.supports_rich_root() != target.supports_rich_root():
1440
if source._serializer != target._serializer:
1445
def copy_content(self, revision_id=None):
1446
"""Make a complete copy of the content in self into destination.
1448
This copies both the repository's revision data, and configuration information
1449
such as the make_working_trees setting.
1451
This is a destructive operation! Do not use it on existing
1454
:param revision_id: Only copy the content needed to construct
1455
revision_id and its parents.
1458
self.target.set_make_working_trees(self.source.make_working_trees())
1459
except NotImplementedError:
1461
# TODO: jam 20070210 This is fairly internal, so we should probably
1462
# just assert that revision_id is not unicode.
1463
revision_id = osutils.safe_revision_id(revision_id)
1464
# but don't bother fetching if we have the needed data now.
1465
if (revision_id not in (None, _mod_revision.NULL_REVISION) and
1466
self.target.has_revision(revision_id)):
1468
self.target.fetch(self.source, revision_id=revision_id)
1471
def fetch(self, revision_id=None, pb=None):
1472
"""See InterRepository.fetch()."""
1473
from bzrlib.fetch import GenericRepoFetcher
1474
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1475
self.source, self.source._format, self.target,
1476
self.target._format)
1477
# TODO: jam 20070210 This should be an assert, not a translate
1478
revision_id = osutils.safe_revision_id(revision_id)
1479
f = GenericRepoFetcher(to_repository=self.target,
1480
from_repository=self.source,
1481
last_revision=revision_id,
1483
return f.count_copied, f.failed_revisions
1486
class InterWeaveRepo(InterSameDataRepository):
1487
"""Optimised code paths between Weave based repositories."""
1490
def _get_repo_format_to_test(self):
1491
from bzrlib.repofmt import weaverepo
1492
return weaverepo.RepositoryFormat7()
1495
def is_compatible(source, target):
1496
"""Be compatible with known Weave formats.
1498
We don't test for the stores being of specific types because that
1499
could lead to confusing results, and there is no need to be
1502
from bzrlib.repofmt.weaverepo import (
1508
return (isinstance(source._format, (RepositoryFormat5,
1510
RepositoryFormat7)) and
1511
isinstance(target._format, (RepositoryFormat5,
1513
RepositoryFormat7)))
1514
except AttributeError:
1518
def copy_content(self, revision_id=None):
1519
"""See InterRepository.copy_content()."""
1520
# weave specific optimised path:
1521
# TODO: jam 20070210 Internal, should be an assert, not translate
1522
revision_id = osutils.safe_revision_id(revision_id)
1524
self.target.set_make_working_trees(self.source.make_working_trees())
1525
except NotImplementedError:
1527
# FIXME do not peek!
1528
if self.source.control_files._transport.listable():
1529
pb = ui.ui_factory.nested_progress_bar()
1531
self.target.weave_store.copy_all_ids(
1532
self.source.weave_store,
1534
from_transaction=self.source.get_transaction(),
1535
to_transaction=self.target.get_transaction())
1536
pb.update('copying inventory', 0, 1)
1537
self.target.control_weaves.copy_multi(
1538
self.source.control_weaves, ['inventory'],
1539
from_transaction=self.source.get_transaction(),
1540
to_transaction=self.target.get_transaction())
1541
self.target._revision_store.text_store.copy_all_ids(
1542
self.source._revision_store.text_store,
1547
self.target.fetch(self.source, revision_id=revision_id)
1550
def fetch(self, revision_id=None, pb=None):
1551
"""See InterRepository.fetch()."""
1552
from bzrlib.fetch import GenericRepoFetcher
1553
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1554
self.source, self.source._format, self.target, self.target._format)
1555
# TODO: jam 20070210 This should be an assert, not a translate
1556
revision_id = osutils.safe_revision_id(revision_id)
1557
f = GenericRepoFetcher(to_repository=self.target,
1558
from_repository=self.source,
1559
last_revision=revision_id,
1561
return f.count_copied, f.failed_revisions
1564
def missing_revision_ids(self, revision_id=None):
1565
"""See InterRepository.missing_revision_ids()."""
1566
# we want all revisions to satisfy revision_id in source.
1567
# but we don't want to stat every file here and there.
1568
# we want then, all revisions other needs to satisfy revision_id
1569
# checked, but not those that we have locally.
1570
# so the first thing is to get a subset of the revisions to
1571
# satisfy revision_id in source, and then eliminate those that
1572
# we do already have.
1573
# this is slow on high latency connection to self, but as as this
1574
# disk format scales terribly for push anyway due to rewriting
1575
# inventory.weave, this is considered acceptable.
1577
if revision_id is not None:
1578
source_ids = self.source.get_ancestry(revision_id)
1579
assert source_ids[0] is None
1582
source_ids = self.source._all_possible_ids()
1583
source_ids_set = set(source_ids)
1584
# source_ids is the worst possible case we may need to pull.
1585
# now we want to filter source_ids against what we actually
1586
# have in target, but don't try to check for existence where we know
1587
# we do not have a revision as that would be pointless.
1588
target_ids = set(self.target._all_possible_ids())
1589
possibly_present_revisions = target_ids.intersection(source_ids_set)
1590
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1591
required_revisions = source_ids_set.difference(actually_present_revisions)
1592
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1593
if revision_id is not None:
1594
# we used get_ancestry to determine source_ids then we are assured all
1595
# revisions referenced are present as they are installed in topological order.
1596
# and the tip revision was validated by get_ancestry.
1597
return required_topo_revisions
1599
# if we just grabbed the possibly available ids, then
1600
# we only have an estimate of whats available and need to validate
1601
# that against the revision records.
1602
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1605
class InterKnitRepo(InterSameDataRepository):
1606
"""Optimised code paths between Knit based repositories."""
1609
def _get_repo_format_to_test(self):
1610
from bzrlib.repofmt import knitrepo
1611
return knitrepo.RepositoryFormatKnit1()
1614
def is_compatible(source, target):
1615
"""Be compatible with known Knit formats.
1617
We don't test for the stores being of specific types because that
1618
could lead to confusing results, and there is no need to be
1621
from bzrlib.repofmt.knitrepo import RepositoryFormatKnit1
1623
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1624
isinstance(target._format, (RepositoryFormatKnit1)))
1625
except AttributeError:
1629
def fetch(self, revision_id=None, pb=None):
1630
"""See InterRepository.fetch()."""
1631
from bzrlib.fetch import KnitRepoFetcher
1632
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1633
self.source, self.source._format, self.target, self.target._format)
1634
# TODO: jam 20070210 This should be an assert, not a translate
1635
revision_id = osutils.safe_revision_id(revision_id)
1636
f = KnitRepoFetcher(to_repository=self.target,
1637
from_repository=self.source,
1638
last_revision=revision_id,
1640
return f.count_copied, f.failed_revisions
1643
def missing_revision_ids(self, revision_id=None):
1644
"""See InterRepository.missing_revision_ids()."""
1645
if revision_id is not None:
1646
source_ids = self.source.get_ancestry(revision_id)
1647
assert source_ids[0] is None
1650
source_ids = self.source._all_possible_ids()
1651
source_ids_set = set(source_ids)
1652
# source_ids is the worst possible case we may need to pull.
1653
# now we want to filter source_ids against what we actually
1654
# have in target, but don't try to check for existence where we know
1655
# we do not have a revision as that would be pointless.
1656
target_ids = set(self.target._all_possible_ids())
1657
possibly_present_revisions = target_ids.intersection(source_ids_set)
1658
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1659
required_revisions = source_ids_set.difference(actually_present_revisions)
1660
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1661
if revision_id is not None:
1662
# we used get_ancestry to determine source_ids then we are assured all
1663
# revisions referenced are present as they are installed in topological order.
1664
# and the tip revision was validated by get_ancestry.
1665
return required_topo_revisions
1667
# if we just grabbed the possibly available ids, then
1668
# we only have an estimate of whats available and need to validate
1669
# that against the revision records.
1670
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1673
class InterModel1and2(InterRepository):
1676
def _get_repo_format_to_test(self):
1680
def is_compatible(source, target):
1681
if not source.supports_rich_root() and target.supports_rich_root():
1687
def fetch(self, revision_id=None, pb=None):
1688
"""See InterRepository.fetch()."""
1689
from bzrlib.fetch import Model1toKnit2Fetcher
1690
# TODO: jam 20070210 This should be an assert, not a translate
1691
revision_id = osutils.safe_revision_id(revision_id)
1692
f = Model1toKnit2Fetcher(to_repository=self.target,
1693
from_repository=self.source,
1694
last_revision=revision_id,
1696
return f.count_copied, f.failed_revisions
1699
def copy_content(self, revision_id=None):
1700
"""Make a complete copy of the content in self into destination.
1702
This is a destructive operation! Do not use it on existing
1705
:param revision_id: Only copy the content needed to construct
1706
revision_id and its parents.
1709
self.target.set_make_working_trees(self.source.make_working_trees())
1710
except NotImplementedError:
1712
# TODO: jam 20070210 Internal, assert, don't translate
1713
revision_id = osutils.safe_revision_id(revision_id)
1714
# but don't bother fetching if we have the needed data now.
1715
if (revision_id not in (None, _mod_revision.NULL_REVISION) and
1716
self.target.has_revision(revision_id)):
1718
self.target.fetch(self.source, revision_id=revision_id)
1721
class InterKnit1and2(InterKnitRepo):
1724
def _get_repo_format_to_test(self):
1728
def is_compatible(source, target):
1729
"""Be compatible with Knit1 source and Knit3 target"""
1730
from bzrlib.repofmt.knitrepo import RepositoryFormatKnit3
1732
from bzrlib.repofmt.knitrepo import RepositoryFormatKnit1, \
1733
RepositoryFormatKnit3
1734
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1735
isinstance(target._format, (RepositoryFormatKnit3)))
1736
except AttributeError:
1740
def fetch(self, revision_id=None, pb=None):
1741
"""See InterRepository.fetch()."""
1742
from bzrlib.fetch import Knit1to2Fetcher
1743
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1744
self.source, self.source._format, self.target,
1745
self.target._format)
1746
# TODO: jam 20070210 This should be an assert, not a translate
1747
revision_id = osutils.safe_revision_id(revision_id)
1748
f = Knit1to2Fetcher(to_repository=self.target,
1749
from_repository=self.source,
1750
last_revision=revision_id,
1752
return f.count_copied, f.failed_revisions
1755
class InterRemoteRepository(InterRepository):
1756
"""Code for converting between RemoteRepository objects.
1758
This just gets an non-remote repository from the RemoteRepository, and calls
1759
InterRepository.get again.
1762
def __init__(self, source, target):
1763
if isinstance(source, remote.RemoteRepository):
1764
source._ensure_real()
1765
real_source = source._real_repository
1767
real_source = source
1768
if isinstance(target, remote.RemoteRepository):
1769
target._ensure_real()
1770
real_target = target._real_repository
1772
real_target = target
1773
self.real_inter = InterRepository.get(real_source, real_target)
1776
def is_compatible(source, target):
1777
if isinstance(source, remote.RemoteRepository):
1779
if isinstance(target, remote.RemoteRepository):
1783
def copy_content(self, revision_id=None):
1784
self.real_inter.copy_content(revision_id=revision_id)
1786
def fetch(self, revision_id=None, pb=None):
1787
self.real_inter.fetch(revision_id=revision_id, pb=pb)
1790
def _get_repo_format_to_test(self):
1794
InterRepository.register_optimiser(InterSameDataRepository)
1795
InterRepository.register_optimiser(InterWeaveRepo)
1796
InterRepository.register_optimiser(InterKnitRepo)
1797
InterRepository.register_optimiser(InterModel1and2)
1798
InterRepository.register_optimiser(InterKnit1and2)
1799
InterRepository.register_optimiser(InterRemoteRepository)
1802
class CopyConverter(object):
1803
"""A repository conversion tool which just performs a copy of the content.
1805
This is slow but quite reliable.
1808
def __init__(self, target_format):
1809
"""Create a CopyConverter.
1811
:param target_format: The format the resulting repository should be.
1813
self.target_format = target_format
1815
def convert(self, repo, pb):
1816
"""Perform the conversion of to_convert, giving feedback via pb.
1818
:param to_convert: The disk object to convert.
1819
:param pb: a progress bar to use for progress information.
1824
# this is only useful with metadir layouts - separated repo content.
1825
# trigger an assertion if not such
1826
repo._format.get_format_string()
1827
self.repo_dir = repo.bzrdir
1828
self.step('Moving repository to repository.backup')
1829
self.repo_dir.transport.move('repository', 'repository.backup')
1830
backup_transport = self.repo_dir.transport.clone('repository.backup')
1831
repo._format.check_conversion_target(self.target_format)
1832
self.source_repo = repo._format.open(self.repo_dir,
1834
_override_transport=backup_transport)
1835
self.step('Creating new repository')
1836
converted = self.target_format.initialize(self.repo_dir,
1837
self.source_repo.is_shared())
1838
converted.lock_write()
1840
self.step('Copying content into repository.')
1841
self.source_repo.copy_content_into(converted)
1844
self.step('Deleting old repository content.')
1845
self.repo_dir.transport.delete_tree('repository.backup')
1846
self.pb.note('repository converted')
1848
def step(self, message):
1849
"""Update the pb by a step."""
1851
self.pb.update(message, self.count, self.total)
1854
class CommitBuilder(object):
1855
"""Provides an interface to build up a commit.
1857
This allows describing a tree to be committed without needing to
1858
know the internals of the format of the repository.
1861
record_root_entry = False
1862
def __init__(self, repository, parents, config, timestamp=None,
1863
timezone=None, committer=None, revprops=None,
1865
"""Initiate a CommitBuilder.
1867
:param repository: Repository to commit to.
1868
:param parents: Revision ids of the parents of the new revision.
1869
:param config: Configuration to use.
1870
:param timestamp: Optional timestamp recorded for commit.
1871
:param timezone: Optional timezone for timestamp.
1872
:param committer: Optional committer to set for commit.
1873
:param revprops: Optional dictionary of revision properties.
1874
:param revision_id: Optional revision id.
1876
self._config = config
1878
if committer is None:
1879
self._committer = self._config.username()
1881
assert isinstance(committer, basestring), type(committer)
1882
self._committer = committer
1884
self.new_inventory = Inventory(None)
1885
self._new_revision_id = osutils.safe_revision_id(revision_id)
1886
self.parents = parents
1887
self.repository = repository
1890
if revprops is not None:
1891
self._revprops.update(revprops)
1893
if timestamp is None:
1894
timestamp = time.time()
1895
# Restrict resolution to 1ms
1896
self._timestamp = round(timestamp, 3)
1898
if timezone is None:
1899
self._timezone = osutils.local_time_offset()
1901
self._timezone = int(timezone)
1903
self._generate_revision_if_needed()
1905
def commit(self, message):
1906
"""Make the actual commit.
1908
:return: The revision id of the recorded revision.
1910
rev = _mod_revision.Revision(
1911
timestamp=self._timestamp,
1912
timezone=self._timezone,
1913
committer=self._committer,
1915
inventory_sha1=self.inv_sha1,
1916
revision_id=self._new_revision_id,
1917
properties=self._revprops)
1918
rev.parent_ids = self.parents
1919
self.repository.add_revision(self._new_revision_id, rev,
1920
self.new_inventory, self._config)
1921
return self._new_revision_id
1923
def revision_tree(self):
1924
"""Return the tree that was just committed.
1926
After calling commit() this can be called to get a RevisionTree
1927
representing the newly committed tree. This is preferred to
1928
calling Repository.revision_tree() because that may require
1929
deserializing the inventory, while we already have a copy in
1932
return RevisionTree(self.repository, self.new_inventory,
1933
self._new_revision_id)
1935
def finish_inventory(self):
1936
"""Tell the builder that the inventory is finished."""
1937
if self.new_inventory.root is None:
1938
symbol_versioning.warn('Root entry should be supplied to'
1939
' record_entry_contents, as of bzr 0.10.',
1940
DeprecationWarning, stacklevel=2)
1941
self.new_inventory.add(InventoryDirectory(ROOT_ID, '', None))
1942
self.new_inventory.revision_id = self._new_revision_id
1943
self.inv_sha1 = self.repository.add_inventory(
1944
self._new_revision_id,
1949
def _gen_revision_id(self):
1950
"""Return new revision-id."""
1951
return generate_ids.gen_revision_id(self._config.username(),
1954
def _generate_revision_if_needed(self):
1955
"""Create a revision id if None was supplied.
1957
If the repository can not support user-specified revision ids
1958
they should override this function and raise CannotSetRevisionId
1959
if _new_revision_id is not None.
1961
:raises: CannotSetRevisionId
1963
if self._new_revision_id is None:
1964
self._new_revision_id = self._gen_revision_id()
1966
def record_entry_contents(self, ie, parent_invs, path, tree):
1967
"""Record the content of ie from tree into the commit if needed.
1969
Side effect: sets ie.revision when unchanged
1971
:param ie: An inventory entry present in the commit.
1972
:param parent_invs: The inventories of the parent revisions of the
1974
:param path: The path the entry is at in the tree.
1975
:param tree: The tree which contains this entry and should be used to
1978
if self.new_inventory.root is None and ie.parent_id is not None:
1979
symbol_versioning.warn('Root entry should be supplied to'
1980
' record_entry_contents, as of bzr 0.10.',
1981
DeprecationWarning, stacklevel=2)
1982
self.record_entry_contents(tree.inventory.root.copy(), parent_invs,
1984
self.new_inventory.add(ie)
1986
# ie.revision is always None if the InventoryEntry is considered
1987
# for committing. ie.snapshot will record the correct revision
1988
# which may be the sole parent if it is untouched.
1989
if ie.revision is not None:
1992
# In this revision format, root entries have no knit or weave
1993
if ie is self.new_inventory.root:
1994
# When serializing out to disk and back in
1995
# root.revision is always _new_revision_id
1996
ie.revision = self._new_revision_id
1998
previous_entries = ie.find_previous_heads(
2000
self.repository.weave_store,
2001
self.repository.get_transaction())
2002
# we are creating a new revision for ie in the history store
2004
ie.snapshot(self._new_revision_id, path, previous_entries, tree, self)
2006
def modified_directory(self, file_id, file_parents):
2007
"""Record the presence of a symbolic link.
2009
:param file_id: The file_id of the link to record.
2010
:param file_parents: The per-file parent revision ids.
2012
self._add_text_to_weave(file_id, [], file_parents.keys())
2014
def modified_reference(self, file_id, file_parents):
2015
"""Record the modification of a reference.
2017
:param file_id: The file_id of the link to record.
2018
:param file_parents: The per-file parent revision ids.
2020
self._add_text_to_weave(file_id, [], file_parents.keys())
2022
def modified_file_text(self, file_id, file_parents,
2023
get_content_byte_lines, text_sha1=None,
2025
"""Record the text of file file_id
2027
:param file_id: The file_id of the file to record the text of.
2028
:param file_parents: The per-file parent revision ids.
2029
:param get_content_byte_lines: A callable which will return the byte
2031
:param text_sha1: Optional SHA1 of the file contents.
2032
:param text_size: Optional size of the file contents.
2034
# mutter('storing text of file {%s} in revision {%s} into %r',
2035
# file_id, self._new_revision_id, self.repository.weave_store)
2036
# special case to avoid diffing on renames or
2038
if (len(file_parents) == 1
2039
and text_sha1 == file_parents.values()[0].text_sha1
2040
and text_size == file_parents.values()[0].text_size):
2041
previous_ie = file_parents.values()[0]
2042
versionedfile = self.repository.weave_store.get_weave(file_id,
2043
self.repository.get_transaction())
2044
versionedfile.clone_text(self._new_revision_id,
2045
previous_ie.revision, file_parents.keys())
2046
return text_sha1, text_size
2048
new_lines = get_content_byte_lines()
2049
# TODO: Rather than invoking sha_strings here, _add_text_to_weave
2050
# should return the SHA1 and size
2051
self._add_text_to_weave(file_id, new_lines, file_parents.keys())
2052
return osutils.sha_strings(new_lines), \
2053
sum(map(len, new_lines))
2055
def modified_link(self, file_id, file_parents, link_target):
2056
"""Record the presence of a symbolic link.
2058
:param file_id: The file_id of the link to record.
2059
:param file_parents: The per-file parent revision ids.
2060
:param link_target: Target location of this link.
2062
self._add_text_to_weave(file_id, [], file_parents.keys())
2064
def _add_text_to_weave(self, file_id, new_lines, parents):
2065
versionedfile = self.repository.weave_store.get_weave_or_empty(
2066
file_id, self.repository.get_transaction())
2067
versionedfile.add_lines(self._new_revision_id, parents, new_lines)
2068
versionedfile.clear_cache()
2071
class _CommitBuilder(CommitBuilder):
2072
"""Temporary class so old CommitBuilders are detected properly
2074
Note: CommitBuilder works whether or not root entry is recorded.
2077
record_root_entry = True
2080
class RootCommitBuilder(CommitBuilder):
2081
"""This commitbuilder actually records the root id"""
2083
record_root_entry = True
2085
def record_entry_contents(self, ie, parent_invs, path, tree):
2086
"""Record the content of ie from tree into the commit if needed.
2088
Side effect: sets ie.revision when unchanged
2090
:param ie: An inventory entry present in the commit.
2091
:param parent_invs: The inventories of the parent revisions of the
2093
:param path: The path the entry is at in the tree.
2094
:param tree: The tree which contains this entry and should be used to
2097
assert self.new_inventory.root is not None or ie.parent_id is None
2098
self.new_inventory.add(ie)
2100
# ie.revision is always None if the InventoryEntry is considered
2101
# for committing. ie.snapshot will record the correct revision
2102
# which may be the sole parent if it is untouched.
2103
if ie.revision is not None:
2106
previous_entries = ie.find_previous_heads(
2108
self.repository.weave_store,
2109
self.repository.get_transaction())
2110
# we are creating a new revision for ie in the history store
2112
ie.snapshot(self._new_revision_id, path, previous_entries, tree, self)
2124
def _unescaper(match, _map=_unescape_map):
2125
code = match.group(1)
2129
if not code.startswith('#'):
2131
return unichr(int(code[1:])).encode('utf8')
2137
def _unescape_xml(data):
2138
"""Unescape predefined XML entities in a string of data."""
2140
if _unescape_re is None:
2141
_unescape_re = re.compile('\&([^;]*);')
2142
return _unescape_re.sub(_unescaper, data)
added
removed
bzrlib/repository.py
