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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from warnings import warn
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from cStringIO import StringIO
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import (isdir, quotefn,
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rename, splitpath, sha_file,
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file_kind, abspath, normpath, pathjoin)
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import bzrlib.errors as errors
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from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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NoSuchRevision, HistoryMissing, NotBranchError,
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DivergedBranches, LockError, UnlistableStore,
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UnlistableBranch, NoSuchFile, NotVersionedError,
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId, \
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DivergedBranches, NotBranchError
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from bzrlib.textui import show_status
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from bzrlib.config import TreeConfig
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from bzrlib.revision import Revision
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from bzrlib.delta import compare_trees
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import bzrlib.inventory as inventory
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from bzrlib.inventory import Inventory
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from bzrlib.lockable_files import LockableFiles
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from bzrlib.revision import (Revision, is_ancestor, get_intervening_revisions)
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from bzrlib.repository import Repository
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from bzrlib.store import copy_all
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import bzrlib.transactions as transactions
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from bzrlib.transport import Transport, get_transport
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from bzrlib.tree import EmptyTree, RevisionTree
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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BZR_BRANCH_FORMAT_6 = "Bazaar-NG branch, format 6\n"
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster. In general anything can be
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# cached in memory between lock and unlock operations.
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def find_branch(*ignored, **ignored_too):
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# XXX: leave this here for about one release, then remove it
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raise NotImplementedError('find_branch() is not supported anymore, '
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'please use one of the new branch constructors')
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def needs_read_lock(unbound):
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"""Decorate unbound to take out and release a read lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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def needs_write_lock(unbound):
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"""Decorate unbound to take out and release a write lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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# cache in memory to make this faster.
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# TODO: please move the revision-string syntax stuff out of the branch
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# object; it's clutter
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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(f, **args)
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return Branch(f, **args)
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def find_cached_branch(f, cache_root, **args):
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from bzrlib.remotebranch import RemoteBranch
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br = find_branch(f, **args)
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def cacheify(br, store_name):
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from bzrlib.meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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new_store = CachedStore(getattr(br, store_name), cache_path)
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setattr(br, store_name, new_store)
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if isinstance(br, RemoteBranch):
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cacheify(br, 'inventory_store')
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cacheify(br, 'text_store')
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cacheify(br, 'revision_store')
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
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current working directory.
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Lifted out of Branch.relpath for ease of testing.
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os.path.commonprefix (python2.4) has a bad bug that it works just
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on string prefixes, assuming that '/u' is a prefix of '/u2'. This
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avoids that problem."""
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rp = os.path.abspath(path)
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while len(head) >= len(base):
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head, tail = os.path.split(head)
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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f may be a filename or a URL.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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head, tail = os.path.split(f)
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# reached the root, whatever that may be
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raise NotBranchError('%s is not in a branch' % orig_f)
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######################################################################
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"""Branch holding a history of revisions.
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Base directory/url of the branch.
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Base directory of the branch.
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If _lock_mode is true, a positive count of the number of times the
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Lock object from bzrlib.lock.
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def __init__(self, *ignored, **ignored_too):
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raise NotImplementedError('The Branch class is abstract')
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def open_downlevel(base):
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"""Open a branch which may be of an old format.
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Only local branches are supported."""
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return BzrBranch(get_transport(base), relax_version_check=True)
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"""Open an existing branch, rooted at 'base' (url)"""
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t = get_transport(base)
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mutter("trying to open %r with transport %r", base, t)
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def open_containing(url):
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"""Open an existing branch which contains url.
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This probes for a branch at url, and searches upwards from there.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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If there is one, it is returned, along with the unused portion of url.
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t = get_transport(url)
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return BzrBranch(t), t.relpath(url)
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except NotBranchError, e:
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mutter('not a branch in: %r %s', t.base, e)
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new_t = t.clone('..')
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if new_t.base == t.base:
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# reached the root, whatever that may be
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raise NotBranchError(path=url)
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def initialize(base):
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"""Create a new branch, rooted at 'base' (url)"""
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t = get_transport(unicode(base))
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return BzrBranch(t, init=True)
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def setup_caching(self, cache_root):
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"""Subclasses that care about caching should override this, and set
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up cached stores located under cache_root.
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self.cache_root = cache_root
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cfg = self.tree_config()
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return cfg.get_option(u"nickname", default=self.base.split('/')[-1])
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def _set_nick(self, nick):
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cfg = self.tree_config()
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cfg.set_option(nick, "nickname")
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assert cfg.get_option("nickname") == nick
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nick = property(_get_nick, _set_nick)
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def push_stores(self, branch_to):
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"""Copy the content of this branches store to branch_to."""
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raise NotImplementedError('push_stores is abstract')
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def __init__(self, base, init=False, find_root=True):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch. May be a file:// url.
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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find_root -- If true and init is false, find the root of the
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existing branch containing base.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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from bzrlib.store import ImmutableStore
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self.base = os.path.realpath(base)
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self.base = find_branch_root(base)
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if base.startswith("file://"):
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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raise NotBranchError("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self.text_store = ImmutableStore(self.controlfilename('text-store'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
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return '%s(%r)' % (self.__class__.__name__, self.base)
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if self._lock_mode or self._lock:
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from bzrlib.warnings import warn
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warn("branch %r was not explicitly unlocked" % self)
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def lock_write(self):
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raise NotImplementedError('lock_write is abstract')
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if self._lock_mode != 'w':
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from bzrlib.errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_count += 1
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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def lock_read(self):
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raise NotImplementedError('lock_read is abstract')
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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def unlock(self):
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raise NotImplementedError('unlock is abstract')
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if not self._lock_mode:
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from bzrlib.errors import LockError
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raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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self._lock_mode = self._lock_count = None
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def abspath(self, name):
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"""Return absolute filename for something in the branch
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"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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return _relpath(self.base, path)
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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if isinstance(file_or_path, basestring):
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file_or_path = [file_or_path]
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return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
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rather should be atomically copied and replaced using atomicfile.
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
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return file(fn, mode)
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elif mode == 'r' or mode == 'w':
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# open in binary mode anyhow so there's no newline translation;
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# codecs uses line buffering by default; don't want that.
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return codecs.open(fn, mode + 'b', 'utf-8',
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raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
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from bzrlib.inventory import Inventory
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XXX: Robert Collins 20051017 what is this used for? why is it a branch
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method and not a tree method.
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os.mkdir(self.controlfilename([]))
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self.controlfile('README', 'w').write(
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"This is a Bazaar-NG control directory.\n"
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"Do not change any files in this directory.\n")
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self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
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for d in ('text-store', 'inventory-store', 'revision-store'):
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os.mkdir(self.controlfilename(d))
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for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name',
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self.controlfile(f, 'w').write('')
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mutter('created control directory in ' + self.base)
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# if we want per-tree root ids then this is the place to set
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# them; they're not needed for now and so ommitted for
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f = self.controlfile('inventory','w')
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bzrlib.xml.serializer_v4.write_inventory(Inventory(), f)
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def _check_format(self):
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"""Check this branch format is supported.
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The current tool only supports the current unstable format.
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In the future, we might need different in-memory Branch
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classes to support downlevel branches. But not yet.
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raise NotImplementedError('abspath is abstract')
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# This ignores newlines so that we can open branches created
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# on Windows from Linux and so on. I think it might be better
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# to always make all internal files in unix format.
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fmt = self.controlfile('branch-format', 'r').read()
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fmt = fmt.replace('\r\n', '\n')
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if fmt != BZR_BRANCH_FORMAT:
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raise BzrError('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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def get_root_id(self):
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"""Return the id of this branches root"""
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raise NotImplementedError('get_root_id is abstract')
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def print_file(self, file, revision_id):
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inv = self.read_working_inventory()
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return inv.root.file_id
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def set_root_id(self, file_id):
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inv = self.read_working_inventory()
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orig_root_id = inv.root.file_id
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del inv._byid[inv.root.file_id]
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inv.root.file_id = file_id
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inv._byid[inv.root.file_id] = inv.root
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if entry.parent_id in (None, orig_root_id):
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entry.parent_id = inv.root.file_id
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self._write_inventory(inv)
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def read_working_inventory(self):
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"""Read the working inventory."""
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from bzrlib.inventory import Inventory
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# ElementTree does its own conversion from UTF-8, so open in
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f = self.controlfile('inventory', 'rb')
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return bzrlib.xml.serializer_v4.read_inventory(f)
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def _write_inventory(self, inv):
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"""Update the working inventory.
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That is to say, the inventory describing changes underway, that
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will be committed to the next revision.
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from bzrlib.atomicfile import AtomicFile
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f = AtomicFile(self.controlfilename('inventory'), 'wb')
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bzrlib.xml.serializer_v4.write_inventory(inv, f)
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mutter('wrote working inventory')
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inventory = property(read_working_inventory, _write_inventory, None,
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"""Inventory for the working copy.""")
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def add(self, files, ids=None):
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"""Make files versioned.
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Note that the command line normally calls smart_add instead,
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which can automatically recurse.
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This puts the files in the Added state, so that they will be
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recorded by the next commit.
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List of paths to add, relative to the base of the tree.
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If set, use these instead of automatically generated ids.
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Must be the same length as the list of files, but may
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contain None for ids that are to be autogenerated.
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TODO: Perhaps have an option to add the ids even if the files do
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TODO: Perhaps yield the ids and paths as they're added.
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# TODO: Re-adding a file that is removed in the working copy
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# should probably put it back with the previous ID.
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if isinstance(files, basestring):
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assert(ids is None or isinstance(ids, basestring))
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ids = [None] * len(files)
426
assert(len(ids) == len(files))
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inv = self.read_working_inventory()
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for f,file_id in zip(files, ids):
432
if is_control_file(f):
433
raise BzrError("cannot add control file %s" % quotefn(f))
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raise BzrError("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self.abspath(f))
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kind = file_kind(fullpath)
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# maybe something better?
446
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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if kind != 'file' and kind != 'directory':
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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file_id = gen_file_id(f)
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inv.add_path(f, kind=kind, file_id=file_id)
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mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
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self._write_inventory(inv)
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def print_file(self, file, revno):
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463
"""Print `file` to stdout."""
191
raise NotImplementedError('print_file is abstract')
466
tree = self.revision_tree(self.lookup_revision(revno))
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# use inventory as it was in that revision
468
file_id = tree.inventory.path2id(file)
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raise BzrError("%r is not present in revision %s" % (file, revno))
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tree.print_file(file_id)
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def remove(self, files, verbose=False):
477
"""Mark nominated files for removal from the inventory.
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This does not remove their text. This does not run on
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TODO: Refuse to remove modified files unless --force is given?
483
TODO: Do something useful with directories.
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TODO: Should this remove the text or not? Tough call; not
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removing may be useful and the user can just use use rm, and
487
is the opposite of add. Removing it is consistent with most
488
other tools. Maybe an option.
490
## TODO: Normalize names
491
## TODO: Remove nested loops; better scalability
492
if isinstance(files, basestring):
498
tree = self.working_tree()
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# do this before any modifications
505
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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self._write_inventory(inv)
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# FIXME: this doesn't need to be a branch method
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def set_inventory(self, new_inventory_list):
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from bzrlib.inventory import Inventory, InventoryEntry
524
inv = Inventory(self.get_root_id())
525
for path, file_id, parent, kind in new_inventory_list:
526
name = os.path.basename(path)
529
inv.add(InventoryEntry(file_id, name, kind, parent))
530
self._write_inventory(inv)
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"""Return all unknown files.
536
These are files in the working directory that are not versioned or
537
control files or ignored.
539
>>> b = ScratchBranch(files=['foo', 'foo~'])
540
>>> list(b.unknowns())
543
>>> list(b.unknowns())
546
>>> list(b.unknowns())
549
return self.working_tree().unknowns()
193
552
def append_revision(self, *revision_ids):
194
raise NotImplementedError('append_revision is abstract')
196
def set_revision_history(self, rev_history):
197
raise NotImplementedError('set_revision_history is abstract')
553
from bzrlib.atomicfile import AtomicFile
555
for revision_id in revision_ids:
556
mutter("add {%s} to revision-history" % revision_id)
558
rev_history = self.revision_history()
559
rev_history.extend(revision_ids)
561
f = AtomicFile(self.controlfilename('revision-history'))
563
for rev_id in rev_history:
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def get_revision_xml_file(self, revision_id):
571
"""Return XML file object for revision object."""
572
if not revision_id or not isinstance(revision_id, basestring):
573
raise InvalidRevisionId(revision_id)
578
return self.revision_store[revision_id]
580
raise bzrlib.errors.NoSuchRevision(self, revision_id)
586
get_revision_xml = get_revision_xml_file
589
def get_revision(self, revision_id):
590
"""Return the Revision object for a named revision"""
591
xml_file = self.get_revision_xml_file(revision_id)
594
r = bzrlib.xml.serializer_v4.read_revision(xml_file)
595
except SyntaxError, e:
596
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
600
assert r.revision_id == revision_id
604
def get_revision_delta(self, revno):
605
"""Return the delta for one revision.
607
The delta is relative to its mainline predecessor, or the
608
empty tree for revision 1.
610
assert isinstance(revno, int)
611
rh = self.revision_history()
612
if not (1 <= revno <= len(rh)):
613
raise InvalidRevisionNumber(revno)
615
# revno is 1-based; list is 0-based
617
new_tree = self.revision_tree(rh[revno-1])
619
old_tree = EmptyTree()
621
old_tree = self.revision_tree(rh[revno-2])
623
return compare_trees(old_tree, new_tree)
627
def get_revision_sha1(self, revision_id):
628
"""Hash the stored value of a revision, and return it."""
629
# In the future, revision entries will be signed. At that
630
# point, it is probably best *not* to include the signature
631
# in the revision hash. Because that lets you re-sign
632
# the revision, (add signatures/remove signatures) and still
633
# have all hash pointers stay consistent.
634
# But for now, just hash the contents.
635
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
638
def get_inventory(self, inventory_id):
639
"""Get Inventory object by hash.
641
TODO: Perhaps for this and similar methods, take a revision
642
parameter which can be either an integer revno or a
644
from bzrlib.inventory import Inventory
646
f = self.get_inventory_xml_file(inventory_id)
647
return bzrlib.xml.serializer_v4.read_inventory(f)
650
def get_inventory_xml(self, inventory_id):
651
"""Get inventory XML as a file object."""
652
return self.inventory_store[inventory_id]
654
get_inventory_xml_file = get_inventory_xml
657
def get_inventory_sha1(self, inventory_id):
658
"""Return the sha1 hash of the inventory entry
660
return sha_file(self.get_inventory_xml(inventory_id))
663
def get_revision_inventory(self, revision_id):
664
"""Return inventory of a past revision."""
665
# bzr 0.0.6 imposes the constraint that the inventory_id
666
# must be the same as its revision, so this is trivial.
667
if revision_id == None:
668
from bzrlib.inventory import Inventory
669
return Inventory(self.get_root_id())
671
return self.get_inventory(revision_id)
199
674
def revision_history(self):
200
"""Return sequence of revision hashes on to this branch."""
201
raise NotImplementedError('revision_history is abstract')
675
"""Return sequence of revision hashes on to this branch.
677
>>> ScratchBranch().revision_history()
682
return [l.rstrip('\r\n') for l in
683
self.controlfile('revision-history', 'r').readlines()]
688
def common_ancestor(self, other, self_revno=None, other_revno=None):
690
>>> from bzrlib.commit import commit
691
>>> sb = ScratchBranch(files=['foo', 'foo~'])
692
>>> sb.common_ancestor(sb) == (None, None)
694
>>> commit(sb, "Committing first revision", verbose=False)
695
>>> sb.common_ancestor(sb)[0]
697
>>> clone = sb.clone()
698
>>> commit(sb, "Committing second revision", verbose=False)
699
>>> sb.common_ancestor(sb)[0]
701
>>> sb.common_ancestor(clone)[0]
703
>>> commit(clone, "Committing divergent second revision",
705
>>> sb.common_ancestor(clone)[0]
707
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
709
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
711
>>> clone2 = sb.clone()
712
>>> sb.common_ancestor(clone2)[0]
714
>>> sb.common_ancestor(clone2, self_revno=1)[0]
716
>>> sb.common_ancestor(clone2, other_revno=1)[0]
719
my_history = self.revision_history()
720
other_history = other.revision_history()
721
if self_revno is None:
722
self_revno = len(my_history)
723
if other_revno is None:
724
other_revno = len(other_history)
725
indices = range(min((self_revno, other_revno)))
728
if my_history[r] == other_history[r]:
729
return r+1, my_history[r]
204
734
"""Return current revision number for this branch.
256
788
if stop_revision is None:
257
789
stop_revision = other_len
259
assert isinstance(stop_revision, int)
260
if stop_revision > other_len:
261
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
790
elif stop_revision > other_len:
791
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
262
793
return other_history[self_len:stop_revision]
265
796
def update_revisions(self, other, stop_revision=None):
266
"""Pull in new perfect-fit revisions."""
267
raise NotImplementedError('update_revisions is abstract')
269
def pullable_revisions(self, other, stop_revision):
270
raise NotImplementedError('pullable_revisions is abstract')
797
"""Pull in all new revisions from other branch.
799
from bzrlib.fetch import greedy_fetch
800
from bzrlib.revision import get_intervening_revisions
802
pb = bzrlib.ui.ui_factory.progress_bar()
803
pb.update('comparing histories')
804
if stop_revision is None:
805
other_revision = other.last_patch()
807
other_revision = other.lookup_revision(stop_revision)
808
count = greedy_fetch(self, other, other_revision, pb)[0]
810
revision_ids = self.missing_revisions(other, stop_revision)
811
except DivergedBranches, e:
813
revision_ids = get_intervening_revisions(self.last_patch(),
814
other_revision, self)
815
assert self.last_patch() not in revision_ids
816
except bzrlib.errors.NotAncestor:
819
self.append_revision(*revision_ids)
822
def install_revisions(self, other, revision_ids, pb):
823
if hasattr(other.revision_store, "prefetch"):
824
other.revision_store.prefetch(revision_ids)
825
if hasattr(other.inventory_store, "prefetch"):
827
for rev_id in revision_ids:
829
revision = other.get_revision(rev_id).inventory_id
830
inventory_ids.append(revision)
831
except bzrlib.errors.NoSuchRevision:
833
other.inventory_store.prefetch(inventory_ids)
836
pb = bzrlib.ui.ui_factory.progress_bar()
843
for i, rev_id in enumerate(revision_ids):
844
pb.update('fetching revision', i+1, len(revision_ids))
846
rev = other.get_revision(rev_id)
847
except bzrlib.errors.NoSuchRevision:
851
revisions.append(rev)
852
inv = other.get_inventory(str(rev.inventory_id))
853
for key, entry in inv.iter_entries():
854
if entry.text_id is None:
856
if entry.text_id not in self.text_store:
857
needed_texts.add(entry.text_id)
861
count, cp_fail = self.text_store.copy_multi(other.text_store,
863
#print "Added %d texts." % count
864
inventory_ids = [ f.inventory_id for f in revisions ]
865
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
867
#print "Added %d inventories." % count
868
revision_ids = [ f.revision_id for f in revisions]
870
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
873
assert len(cp_fail) == 0
874
return count, failures
877
def commit(self, *args, **kw):
878
from bzrlib.commit import commit
879
commit(self, *args, **kw)
882
def lookup_revision(self, revision):
883
"""Return the revision identifier for a given revision information."""
884
revno, info = self._get_revision_info(revision)
272
888
def revision_id_to_revno(self, revision_id):
273
889
"""Given a revision id, return its revno"""
274
if revision_id is None:
276
890
history = self.revision_history()
278
892
return history.index(revision_id) + 1
279
893
except ValueError:
280
894
raise bzrlib.errors.NoSuchRevision(self, revision_id)
897
def get_revision_info(self, revision):
898
"""Return (revno, revision id) for revision identifier.
900
revision can be an integer, in which case it is assumed to be revno (though
901
this will translate negative values into positive ones)
902
revision can also be a string, in which case it is parsed for something like
903
'date:' or 'revid:' etc.
905
revno, rev_id = self._get_revision_info(revision)
907
raise bzrlib.errors.NoSuchRevision(self, revision)
282
910
def get_rev_id(self, revno, history=None):
283
911
"""Find the revision id of the specified revno."""
289
917
raise bzrlib.errors.NoSuchRevision(self, revno)
290
918
return history[revno - 1]
920
def _get_revision_info(self, revision):
921
"""Return (revno, revision id) for revision specifier.
923
revision can be an integer, in which case it is assumed to be revno
924
(though this will translate negative values into positive ones)
925
revision can also be a string, in which case it is parsed for something
926
like 'date:' or 'revid:' etc.
928
A revid is always returned. If it is None, the specifier referred to
929
the null revision. If the revid does not occur in the revision
930
history, revno will be None.
936
try:# Convert to int if possible
937
revision = int(revision)
940
revs = self.revision_history()
941
if isinstance(revision, int):
943
revno = len(revs) + revision + 1
946
rev_id = self.get_rev_id(revno, revs)
947
elif isinstance(revision, basestring):
948
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
949
if revision.startswith(prefix):
950
result = func(self, revs, revision)
952
revno, rev_id = result
955
rev_id = self.get_rev_id(revno, revs)
958
raise BzrError('No namespace registered for string: %r' %
961
raise TypeError('Unhandled revision type %s' % revision)
965
raise bzrlib.errors.NoSuchRevision(self, revision)
968
def _namespace_revno(self, revs, revision):
969
"""Lookup a revision by revision number"""
970
assert revision.startswith('revno:')
972
return (int(revision[6:]),)
975
REVISION_NAMESPACES['revno:'] = _namespace_revno
977
def _namespace_revid(self, revs, revision):
978
assert revision.startswith('revid:')
979
rev_id = revision[len('revid:'):]
981
return revs.index(rev_id) + 1, rev_id
984
REVISION_NAMESPACES['revid:'] = _namespace_revid
986
def _namespace_last(self, revs, revision):
987
assert revision.startswith('last:')
989
offset = int(revision[5:])
994
raise BzrError('You must supply a positive value for --revision last:XXX')
995
return (len(revs) - offset + 1,)
996
REVISION_NAMESPACES['last:'] = _namespace_last
998
def _namespace_tag(self, revs, revision):
999
assert revision.startswith('tag:')
1000
raise BzrError('tag: namespace registered, but not implemented.')
1001
REVISION_NAMESPACES['tag:'] = _namespace_tag
1003
def _namespace_date(self, revs, revision):
1004
assert revision.startswith('date:')
1006
# Spec for date revisions:
1008
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1009
# it can also start with a '+/-/='. '+' says match the first
1010
# entry after the given date. '-' is match the first entry before the date
1011
# '=' is match the first entry after, but still on the given date.
1013
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1014
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1015
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1016
# May 13th, 2005 at 0:00
1018
# So the proper way of saying 'give me all entries for today' is:
1019
# -r {date:+today}:{date:-tomorrow}
1020
# The default is '=' when not supplied
1023
if val[:1] in ('+', '-', '='):
1024
match_style = val[:1]
1027
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1028
if val.lower() == 'yesterday':
1029
dt = today - datetime.timedelta(days=1)
1030
elif val.lower() == 'today':
1032
elif val.lower() == 'tomorrow':
1033
dt = today + datetime.timedelta(days=1)
1036
# This should be done outside the function to avoid recompiling it.
1037
_date_re = re.compile(
1038
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1040
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1042
m = _date_re.match(val)
1043
if not m or (not m.group('date') and not m.group('time')):
1044
raise BzrError('Invalid revision date %r' % revision)
1047
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1049
year, month, day = today.year, today.month, today.day
1051
hour = int(m.group('hour'))
1052
minute = int(m.group('minute'))
1053
if m.group('second'):
1054
second = int(m.group('second'))
1058
hour, minute, second = 0,0,0
1060
dt = datetime.datetime(year=year, month=month, day=day,
1061
hour=hour, minute=minute, second=second)
1065
if match_style == '-':
1067
elif match_style == '=':
1068
last = dt + datetime.timedelta(days=1)
1071
for i in range(len(revs)-1, -1, -1):
1072
r = self.get_revision(revs[i])
1073
# TODO: Handle timezone.
1074
dt = datetime.datetime.fromtimestamp(r.timestamp)
1075
if first >= dt and (last is None or dt >= last):
1078
for i in range(len(revs)):
1079
r = self.get_revision(revs[i])
1080
# TODO: Handle timezone.
1081
dt = datetime.datetime.fromtimestamp(r.timestamp)
1082
if first <= dt and (last is None or dt <= last):
1084
REVISION_NAMESPACES['date:'] = _namespace_date
1087
def _namespace_ancestor(self, revs, revision):
1088
from revision import common_ancestor, MultipleRevisionSources
1089
other_branch = find_branch(_trim_namespace('ancestor', revision))
1090
revision_a = self.last_patch()
1091
revision_b = other_branch.last_patch()
1092
for r, b in ((revision_a, self), (revision_b, other_branch)):
1094
raise bzrlib.errors.NoCommits(b)
1095
revision_source = MultipleRevisionSources(self, other_branch)
1096
result = common_ancestor(revision_a, revision_b, revision_source)
1098
revno = self.revision_id_to_revno(result)
1099
except bzrlib.errors.NoSuchRevision:
1104
REVISION_NAMESPACES['ancestor:'] = _namespace_ancestor
1106
def revision_tree(self, revision_id):
1107
"""Return Tree for a revision on this branch.
1109
`revision_id` may be None for the null revision, in which case
1110
an `EmptyTree` is returned."""
1111
# TODO: refactor this to use an existing revision object
1112
# so we don't need to read it in twice.
1113
if revision_id == None:
1116
inv = self.get_revision_inventory(revision_id)
1117
return RevisionTree(self.text_store, inv)
292
1120
def working_tree(self):
293
"""Return a `Tree` for the working copy if this is a local branch."""
294
raise NotImplementedError('working_tree is abstract')
1121
"""Return a `Tree` for the working copy."""
1122
from bzrlib.workingtree import WorkingTree
1123
return WorkingTree(self.base, self.read_working_inventory())
296
def pull(self, source, overwrite=False):
297
raise NotImplementedError('pull is abstract')
299
1126
def basis_tree(self):
300
1127
"""Return `Tree` object for last revision.
302
1129
If there are no revisions yet, return an `EmptyTree`.
304
return self.repository.revision_tree(self.last_revision())
1131
r = self.last_patch()
1135
return RevisionTree(self.text_store, self.get_revision_inventory(r))
306
1139
def rename_one(self, from_rel, to_rel):
307
1140
"""Rename one file.
309
1142
This can change the directory or the filename or both.
311
raise NotImplementedError('rename_one is abstract')
1146
tree = self.working_tree()
1147
inv = tree.inventory
1148
if not tree.has_filename(from_rel):
1149
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1150
if tree.has_filename(to_rel):
1151
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1153
file_id = inv.path2id(from_rel)
1155
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1157
if inv.path2id(to_rel):
1158
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1160
to_dir, to_tail = os.path.split(to_rel)
1161
to_dir_id = inv.path2id(to_dir)
1162
if to_dir_id == None and to_dir != '':
1163
raise BzrError("can't determine destination directory id for %r" % to_dir)
1165
mutter("rename_one:")
1166
mutter(" file_id {%s}" % file_id)
1167
mutter(" from_rel %r" % from_rel)
1168
mutter(" to_rel %r" % to_rel)
1169
mutter(" to_dir %r" % to_dir)
1170
mutter(" to_dir_id {%s}" % to_dir_id)
1172
inv.rename(file_id, to_dir_id, to_tail)
1174
from_abs = self.abspath(from_rel)
1175
to_abs = self.abspath(to_rel)
1177
os.rename(from_abs, to_abs)
1179
raise BzrError("failed to rename %r to %r: %s"
1180
% (from_abs, to_abs, e[1]),
1181
["rename rolled back"])
1183
self._write_inventory(inv)
313
1188
def move(self, from_paths, to_name):
314
1189
"""Rename files.
324
1199
This returns a list of (from_path, to_path) pairs for each
325
1200
entry that is moved.
327
raise NotImplementedError('move is abstract')
1205
## TODO: Option to move IDs only
1206
assert not isinstance(from_paths, basestring)
1207
tree = self.working_tree()
1208
inv = tree.inventory
1209
to_abs = self.abspath(to_name)
1210
if not isdir(to_abs):
1211
raise BzrError("destination %r is not a directory" % to_abs)
1212
if not tree.has_filename(to_name):
1213
raise BzrError("destination %r not in working directory" % to_abs)
1214
to_dir_id = inv.path2id(to_name)
1215
if to_dir_id == None and to_name != '':
1216
raise BzrError("destination %r is not a versioned directory" % to_name)
1217
to_dir_ie = inv[to_dir_id]
1218
if to_dir_ie.kind not in ('directory', 'root_directory'):
1219
raise BzrError("destination %r is not a directory" % to_abs)
1221
to_idpath = inv.get_idpath(to_dir_id)
1223
for f in from_paths:
1224
if not tree.has_filename(f):
1225
raise BzrError("%r does not exist in working tree" % f)
1226
f_id = inv.path2id(f)
1228
raise BzrError("%r is not versioned" % f)
1229
name_tail = splitpath(f)[-1]
1230
dest_path = appendpath(to_name, name_tail)
1231
if tree.has_filename(dest_path):
1232
raise BzrError("destination %r already exists" % dest_path)
1233
if f_id in to_idpath:
1234
raise BzrError("can't move %r to a subdirectory of itself" % f)
1236
# OK, so there's a race here, it's possible that someone will
1237
# create a file in this interval and then the rename might be
1238
# left half-done. But we should have caught most problems.
1240
for f in from_paths:
1241
name_tail = splitpath(f)[-1]
1242
dest_path = appendpath(to_name, name_tail)
1243
result.append((f, dest_path))
1244
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1246
os.rename(self.abspath(f), self.abspath(dest_path))
1248
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1249
["rename rolled back"])
1251
self._write_inventory(inv)
1258
def revert(self, filenames, old_tree=None, backups=True):
1259
"""Restore selected files to the versions from a previous tree.
1262
If true (default) backups are made of files before
1265
from bzrlib.errors import NotVersionedError, BzrError
1266
from bzrlib.atomicfile import AtomicFile
1267
from bzrlib.osutils import backup_file
1269
inv = self.read_working_inventory()
1270
if old_tree is None:
1271
old_tree = self.basis_tree()
1272
old_inv = old_tree.inventory
1275
for fn in filenames:
1276
file_id = inv.path2id(fn)
1278
raise NotVersionedError("not a versioned file", fn)
1279
if not old_inv.has_id(file_id):
1280
raise BzrError("file not present in old tree", fn, file_id)
1281
nids.append((fn, file_id))
1283
# TODO: Rename back if it was previously at a different location
1285
# TODO: If given a directory, restore the entire contents from
1286
# the previous version.
1288
# TODO: Make a backup to a temporary file.
1290
# TODO: If the file previously didn't exist, delete it?
1291
for fn, file_id in nids:
1294
f = AtomicFile(fn, 'wb')
1296
f.write(old_tree.get_file(file_id).read())
1302
def pending_merges(self):
1303
"""Return a list of pending merges.
1305
These are revisions that have been merged into the working
1306
directory but not yet committed.
1308
cfn = self.controlfilename('pending-merges')
1309
if not os.path.exists(cfn):
1312
for l in self.controlfile('pending-merges', 'r').readlines():
1313
p.append(l.rstrip('\n'))
1317
def add_pending_merge(self, revision_id):
1318
from bzrlib.revision import validate_revision_id
1320
validate_revision_id(revision_id)
1322
p = self.pending_merges()
1323
if revision_id in p:
1325
p.append(revision_id)
1326
self.set_pending_merges(p)
1329
def set_pending_merges(self, rev_list):
1330
from bzrlib.atomicfile import AtomicFile
1333
f = AtomicFile(self.controlfilename('pending-merges'))
329
1344
def get_parent(self):
330
1345
"""Return the parent location of the branch.
362
1389
if revno < 1 or revno > self.revno():
363
1390
raise InvalidRevisionNumber(revno)
365
def sign_revision(self, revision_id, gpg_strategy):
366
raise NotImplementedError('sign_revision is abstract')
368
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
369
raise NotImplementedError('store_revision_signature is abstract')
371
def clone(self, to_location, revision=None, basis_branch=None, to_branch_type=None):
372
"""Copy this branch into the existing directory to_location.
374
Returns the newly created branch object.
377
If not None, only revisions up to this point will be copied.
378
The head of the new branch will be that revision. Must be a
381
to_location -- The destination directory; must either exist and be
382
empty, or not exist, in which case it is created.
385
A local branch to copy revisions from, related to this branch.
386
This is used when branching from a remote (slow) branch, and we have
387
a local branch that might contain some relevant revisions.
390
Branch type of destination branch
392
assert isinstance(to_location, basestring)
393
if not bzrlib.osutils.lexists(to_location):
394
os.mkdir(to_location)
395
if to_branch_type is None:
396
to_branch_type = BzrBranch
397
br_to = to_branch_type.initialize(to_location)
398
mutter("copy branch from %s to %s", self, br_to)
399
if basis_branch is not None:
400
basis_branch.push_stores(br_to)
401
br_to.working_tree().set_root_id(self.get_root_id())
403
revision = self.last_revision()
404
br_to.update_revisions(self, stop_revision=revision)
405
br_to.set_parent(self.base)
406
# circular import protection
407
from bzrlib.merge import build_working_dir
408
build_working_dir(to_location)
412
class BzrBranch(Branch):
413
"""A branch stored in the actual filesystem.
415
Note that it's "local" in the context of the filesystem; it doesn't
416
really matter if it's on an nfs/smb/afs/coda/... share, as long as
417
it's writable, and can be accessed via the normal filesystem API.
420
# We actually expect this class to be somewhat short-lived; part of its
421
# purpose is to try to isolate what bits of the branch logic are tied to
422
# filesystem access, so that in a later step, we can extricate them to
423
# a separarte ("storage") class.
424
_inventory_weave = None
426
# Map some sort of prefix into a namespace
427
# stuff like "revno:10", "revid:", etc.
428
# This should match a prefix with a function which accepts
429
REVISION_NAMESPACES = {}
431
def push_stores(self, branch_to):
432
"""See Branch.push_stores."""
433
if (self._branch_format != branch_to._branch_format
434
or self._branch_format != 4):
435
from bzrlib.fetch import greedy_fetch
436
mutter("falling back to fetch logic to push between %s(%s) and %s(%s)",
437
self, self._branch_format, branch_to, branch_to._branch_format)
438
greedy_fetch(to_branch=branch_to, from_branch=self,
439
revision=self.last_revision())
442
store_pairs = ((self.text_store, branch_to.text_store),
443
(self.inventory_store, branch_to.inventory_store),
444
(self.revision_store, branch_to.revision_store))
446
for from_store, to_store in store_pairs:
447
copy_all(from_store, to_store)
448
except UnlistableStore:
449
raise UnlistableBranch(from_store)
451
def __init__(self, transport, init=False,
452
relax_version_check=False):
453
"""Create new branch object at a particular location.
455
transport -- A Transport object, defining how to access files.
457
init -- If True, create new control files in a previously
458
unversioned directory. If False, the branch must already
461
relax_version_check -- If true, the usual check for the branch
462
version is not applied. This is intended only for
463
upgrade/recovery type use; it's not guaranteed that
464
all operations will work on old format branches.
466
In the test suite, creation of new trees is tested using the
467
`ScratchBranch` class.
469
assert isinstance(transport, Transport), \
470
"%r is not a Transport" % transport
471
# TODO: jam 20060103 We create a clone of this transport at .bzr/
472
# and then we forget about it, should we keep a handle to it?
473
self._base = transport.base
474
self.control_files = LockableFiles(transport.clone(bzrlib.BZRDIR),
478
self._check_format(relax_version_check)
479
self.repository = Repository(transport, self._branch_format)
482
return '%s(%r)' % (self.__class__.__name__, self.base)
487
# TODO: It might be best to do this somewhere else,
488
# but it is nice for a Branch object to automatically
489
# cache it's information.
490
# Alternatively, we could have the Transport objects cache requests
491
# See the earlier discussion about how major objects (like Branch)
492
# should never expect their __del__ function to run.
493
if hasattr(self, 'cache_root') and self.cache_root is not None:
495
shutil.rmtree(self.cache_root)
498
self.cache_root = None
503
base = property(_get_base, doc="The URL for the root of this branch.")
505
def _finish_transaction(self):
506
"""Exit the current transaction."""
507
return self.control_files._finish_transaction()
509
def get_transaction(self):
510
"""Return the current active transaction.
512
If no transaction is active, this returns a passthrough object
513
for which all data is immediately flushed and no caching happens.
515
# this is an explicit function so that we can do tricky stuff
516
# when the storage in rev_storage is elsewhere.
517
# we probably need to hook the two 'lock a location' and
518
# 'have a transaction' together more delicately, so that
519
# we can have two locks (branch and storage) and one transaction
520
# ... and finishing the transaction unlocks both, but unlocking
521
# does not. - RBC 20051121
522
return self.control_files.get_transaction()
524
def _set_transaction(self, transaction):
525
"""Set a new active transaction."""
526
return self.control_files._set_transaction(transaction)
528
def abspath(self, name):
529
"""See Branch.abspath."""
530
return self.control_files._transport.abspath(name)
532
def _make_control(self):
533
from bzrlib.inventory import Inventory
534
from bzrlib.weavefile import write_weave_v5
535
from bzrlib.weave import Weave
537
# Create an empty inventory
539
# if we want per-tree root ids then this is the place to set
540
# them; they're not needed for now and so ommitted for
542
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
543
empty_inv = sio.getvalue()
545
bzrlib.weavefile.write_weave_v5(Weave(), sio)
546
empty_weave = sio.getvalue()
548
dirs = ['', 'revision-store', 'weaves']
550
"This is a Bazaar-NG control directory.\n"
551
"Do not change any files in this directory.\n"),
552
('branch-format', BZR_BRANCH_FORMAT_6),
553
('revision-history', ''),
556
('pending-merges', ''),
557
('inventory', empty_inv),
558
('inventory.weave', empty_weave),
559
('ancestry.weave', empty_weave)
561
cfe = self.control_files._escape
562
self.control_files._transport.mkdir_multi([cfe(d) for d in dirs],
563
mode=self.control_files._dir_mode)
564
self.control_files.lock_write()
566
for file, content in files:
567
self.control_files.put_utf8(file, content)
568
mutter('created control directory in ' + self.base)
570
self.control_files.unlock()
572
def _check_format(self, relax_version_check):
573
"""Check this branch format is supported.
575
The format level is stored, as an integer, in
576
self._branch_format for code that needs to check it later.
578
In the future, we might need different in-memory Branch
579
classes to support downlevel branches. But not yet.
582
fmt = self.control_files.controlfile('branch-format', 'r').read()
584
raise NotBranchError(path=self.base)
585
mutter("got branch format %r", fmt)
586
if fmt == BZR_BRANCH_FORMAT_6:
587
self._branch_format = 6
588
elif fmt == BZR_BRANCH_FORMAT_5:
589
self._branch_format = 5
590
elif fmt == BZR_BRANCH_FORMAT_4:
591
self._branch_format = 4
593
if (not relax_version_check
594
and self._branch_format not in (5, 6)):
595
raise errors.UnsupportedFormatError(
596
'sorry, branch format %r not supported' % fmt,
597
['use a different bzr version',
598
'or remove the .bzr directory'
599
' and "bzr init" again'])
602
def get_root_id(self):
603
"""See Branch.get_root_id."""
604
inv = self.repository.get_inventory(self.last_revision())
605
return inv.root.file_id
607
def lock_write(self):
608
# TODO: test for failed two phase locks. This is known broken.
609
self.control_files.lock_write()
610
self.repository.lock_write()
613
# TODO: test for failed two phase locks. This is known broken.
614
self.control_files.lock_read()
615
self.repository.lock_read()
618
# TODO: test for failed two phase locks. This is known broken.
619
self.repository.unlock()
620
self.control_files.unlock()
623
def print_file(self, file, revision_id):
624
"""See Branch.print_file."""
625
return self.repository.print_file(file, revision_id)
628
def append_revision(self, *revision_ids):
629
"""See Branch.append_revision."""
630
for revision_id in revision_ids:
631
mutter("add {%s} to revision-history" % revision_id)
632
rev_history = self.revision_history()
633
rev_history.extend(revision_ids)
634
self.set_revision_history(rev_history)
637
def set_revision_history(self, rev_history):
638
"""See Branch.set_revision_history."""
639
old_revision = self.last_revision()
640
new_revision = rev_history[-1]
641
self.control_files.put_utf8(
642
'revision-history', '\n'.join(rev_history))
644
# FIXME: RBC 20051207 this smells wrong, last_revision in the
645
# working tree may be != to last_revision in the branch - so
646
# why is this passing in the branches last_revision ?
647
self.working_tree().set_last_revision(new_revision, old_revision)
648
except NoWorkingTree:
649
mutter('Unable to set_last_revision without a working tree.')
651
def get_revision_delta(self, revno):
652
"""Return the delta for one revision.
654
The delta is relative to its mainline predecessor, or the
655
empty tree for revision 1.
657
assert isinstance(revno, int)
658
rh = self.revision_history()
659
if not (1 <= revno <= len(rh)):
660
raise InvalidRevisionNumber(revno)
662
# revno is 1-based; list is 0-based
664
new_tree = self.repository.revision_tree(rh[revno-1])
666
old_tree = EmptyTree()
668
old_tree = self.repository.revision_tree(rh[revno-2])
669
return compare_trees(old_tree, new_tree)
672
def revision_history(self):
673
"""See Branch.revision_history."""
674
# FIXME are transactions bound to control files ? RBC 20051121
675
transaction = self.get_transaction()
676
history = transaction.map.find_revision_history()
677
if history is not None:
678
mutter("cache hit for revision-history in %s", self)
680
history = [l.rstrip('\r\n') for l in
681
self.control_files.controlfile('revision-history', 'r').readlines()]
682
transaction.map.add_revision_history(history)
683
# this call is disabled because revision_history is
684
# not really an object yet, and the transaction is for objects.
685
# transaction.register_clean(history, precious=True)
688
def update_revisions(self, other, stop_revision=None):
689
"""See Branch.update_revisions."""
690
from bzrlib.fetch import greedy_fetch
691
if stop_revision is None:
692
stop_revision = other.last_revision()
693
### Should this be checking is_ancestor instead of revision_history?
694
if (stop_revision is not None and
695
stop_revision in self.revision_history()):
697
greedy_fetch(to_branch=self, from_branch=other,
698
revision=stop_revision)
699
pullable_revs = self.pullable_revisions(other, stop_revision)
700
if len(pullable_revs) > 0:
701
self.append_revision(*pullable_revs)
703
def pullable_revisions(self, other, stop_revision):
704
"""See Branch.pullable_revisions."""
705
other_revno = other.revision_id_to_revno(stop_revision)
707
return self.missing_revisions(other, other_revno)
708
except DivergedBranches, e:
710
pullable_revs = get_intervening_revisions(self.last_revision(),
713
assert self.last_revision() not in pullable_revs
715
except bzrlib.errors.NotAncestor:
716
if is_ancestor(self.last_revision(), stop_revision, self):
721
def basis_tree(self):
722
"""See Branch.basis_tree."""
724
revision_id = self.revision_history()[-1]
725
# FIXME: This is an abstraction violation, the basis tree
726
# here as defined is on the working tree, the method should
727
# be too. The basis tree for a branch can be different than
728
# that for a working tree. RBC 20051207
729
xml = self.working_tree().read_basis_inventory(revision_id)
730
inv = bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
731
return RevisionTree(self.repository, inv, revision_id)
732
except (IndexError, NoSuchFile, NoWorkingTree), e:
733
return self.repository.revision_tree(self.last_revision())
735
def working_tree(self):
736
"""See Branch.working_tree."""
737
from bzrlib.workingtree import WorkingTree
738
if self.base.find('://') != -1:
739
raise NoWorkingTree(self.base)
740
return WorkingTree(self.base, branch=self)
743
def pull(self, source, overwrite=False):
744
"""See Branch.pull."""
747
old_count = len(self.revision_history())
749
self.update_revisions(source)
750
except DivergedBranches:
754
self.set_revision_history(source.revision_history())
755
new_count = len(self.revision_history())
756
return new_count - old_count
760
def get_parent(self):
761
"""See Branch.get_parent."""
763
_locs = ['parent', 'pull', 'x-pull']
766
return self.control_files.controlfile(l, 'r').read().strip('\n')
771
def get_push_location(self):
772
"""See Branch.get_push_location."""
773
config = bzrlib.config.BranchConfig(self)
774
push_loc = config.get_user_option('push_location')
777
def set_push_location(self, location):
778
"""See Branch.set_push_location."""
779
config = bzrlib.config.LocationConfig(self.base)
780
config.set_user_option('push_location', location)
783
def set_parent(self, url):
784
"""See Branch.set_parent."""
785
# TODO: Maybe delete old location files?
786
from bzrlib.atomicfile import AtomicFile
787
f = AtomicFile(self.control_files.controlfilename('parent'))
794
def tree_config(self):
795
return TreeConfig(self)
797
def _get_truncated_history(self, revision_id):
798
history = self.revision_history()
799
if revision_id is None:
802
idx = history.index(revision_id)
804
raise InvalidRevisionId(revision_id=revision, branch=self)
805
return history[:idx+1]
808
def _clone_weave(self, to_location, revision=None, basis_branch=None):
809
assert isinstance(to_location, basestring)
810
if basis_branch is not None:
811
note("basis_branch is not supported for fast weave copy yet.")
813
history = self._get_truncated_history(revision)
814
if not bzrlib.osutils.lexists(to_location):
815
os.mkdir(to_location)
816
branch_to = Branch.initialize(to_location)
817
mutter("copy branch from %s to %s", self, branch_to)
818
branch_to.working_tree().set_root_id(self.get_root_id())
820
self.repository.copy(branch_to.repository)
822
# must be done *after* history is copied across
823
# FIXME duplicate code with base .clone().
824
# .. would template method be useful here. RBC 20051207
825
branch_to.set_parent(self.base)
826
branch_to.append_revision(*history)
827
# circular import protection
828
from bzrlib.merge import build_working_dir
829
build_working_dir(to_location)
833
def clone(self, to_location, revision=None, basis_branch=None, to_branch_type=None):
834
if to_branch_type is None:
835
to_branch_type = BzrBranch
837
if to_branch_type == BzrBranch \
838
and self.repository.weave_store.listable() \
839
and self.repository.revision_store.listable():
840
return self._clone_weave(to_location, revision, basis_branch)
842
return Branch.clone(self, to_location, revision, basis_branch, to_branch_type)
845
class ScratchBranch(BzrBranch):
1395
class ScratchBranch(Branch):
846
1396
"""Special test class: a branch that cleans up after itself.
848
1398
>>> b = ScratchBranch()
849
1399
>>> isdir(b.base)
852
>>> b._transport.__del__()
857
def __init__(self, files=[], dirs=[], transport=None):
1406
def __init__(self, files=[], dirs=[], base=None):
858
1407
"""Make a test branch.
860
1409
This creates a temporary directory and runs init-tree in it.
862
1411
If any files are listed, they are created in the working copy.
864
if transport is None:
865
transport = bzrlib.transport.local.ScratchTransport()
866
super(ScratchBranch, self).__init__(transport, init=True)
868
super(ScratchBranch, self).__init__(transport)
870
# BzrBranch creates a clone to .bzr and then forgets about the
871
# original transport. A ScratchTransport() deletes itself and
872
# everything underneath it when it goes away, so we need to
873
# grab a local copy to prevent that from happening
874
self._transport = transport
1413
from tempfile import mkdtemp
1418
Branch.__init__(self, base, init=init)
877
self._transport.mkdir(d)
1420
os.mkdir(self.abspath(d))
880
self._transport.put(f, 'content of %s' % f)
1423
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
882
1426
def clone(self):
884
1428
>>> orig = ScratchBranch(files=["file1", "file2"])
885
>>> os.listdir(orig.base)
886
[u'.bzr', u'file1', u'file2']
887
1429
>>> clone = orig.clone()
888
>>> if os.name != 'nt':
889
... os.path.samefile(orig.base, clone.base)
891
... orig.base == clone.base
1430
>>> os.path.samefile(orig.base, clone.base)
894
>>> os.listdir(clone.base)
895
[u'.bzr', u'file1', u'file2']
1432
>>> os.path.isfile(os.path.join(clone.base, "file1"))
897
1435
from shutil import copytree
898
from bzrlib.osutils import mkdtemp
1436
from tempfile import mkdtemp
899
1437
base = mkdtemp()
901
1439
copytree(self.base, base, symlinks=True)
902
return ScratchBranch(
903
transport=bzrlib.transport.local.ScratchTransport(base))
1440
return ScratchBranch(base=base)
1448
"""Destroy the test branch, removing the scratch directory."""
1449
from shutil import rmtree
1452
mutter("delete ScratchBranch %s" % self.base)
1455
# Work around for shutil.rmtree failing on Windows when
1456
# readonly files are encountered
1457
mutter("hit exception in destroying ScratchBranch: %s" % e)
1458
for root, dirs, files in os.walk(self.base, topdown=False):
1460
os.chmod(os.path.join(root, name), 0700)
906
1466
######################################################################