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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from warnings import warn
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from cStringIO import StringIO
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from bzrlib.inventory import InventoryEntry
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import bzrlib.inventory as inventory
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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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.osutils import (isdir, quotefn, compact_date, rand_bytes,
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rename, splitpath, sha_file, appendpath,
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import bzrlib.errors as errors
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from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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NoSuchRevision, HistoryMissing, NotBranchError,
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DivergedBranches, LockError, UnlistableStore,
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UnlistableBranch, NoSuchFile, NotVersionedError,
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.revision import (Revision, is_ancestor, get_intervening_revisions,
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.inventory import Inventory
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from bzrlib.store import copy_all
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from bzrlib.store.compressed_text import CompressedTextStore
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from bzrlib.store.text import TextStore
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from bzrlib.store.weave import WeaveStore
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from bzrlib.testament import Testament
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import bzrlib.transactions as transactions
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from bzrlib.transport import Transport, get_transport
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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BZR_BRANCH_FORMAT_6 = "Bazaar-NG branch, format 6\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster.
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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 _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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def needs_read_lock(unbound):
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"""Decorate unbound to take out and release a read lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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def needs_write_lock(unbound):
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"""Decorate unbound to take out and release a write lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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######################################################################
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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 _Branch(get_transport(base), relax_version_check=True)
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"""Open an existing branch, rooted at 'base' (url)"""
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if base and (base.startswith('http://') or base.startswith('https://')):
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(base, find_root=False)
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return LocalBranch(base, find_root=False)
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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, containing url (search upwards for the root)
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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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if url and (url.startswith('http://') or url.startswith('https://')):
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(url)
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return LocalBranch(url)
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t = get_transport(url)
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return _Branch(t), t.relpath(url)
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except NotBranchError:
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new_t = t.clone('..')
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if new_t.base == t.base:
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# reached the root, whatever that may be
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raise NotBranchError(path=url)
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def initialize(base):
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"""Create a new branch, rooted at 'base' (url)"""
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if base and (base.startswith('http://') or base.startswith('https://')):
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(base, init=True)
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return LocalBranch(base, init=True)
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t = get_transport(base)
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return _Branch(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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class LocalBranch(Branch):
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self.cache_root = cache_root
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class _Branch(Branch):
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"""A branch stored in the actual filesystem.
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Note that it's "local" in the context of the filesystem; it doesn't
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_lock_mode = None
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_lock_count = None
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def __init__(self, base, init=False, find_root=True):
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_inventory_weave = None
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def push_stores(self, branch_to):
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"""Copy the content of this branches store to branch_to."""
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if (self._branch_format != branch_to._branch_format
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or self._branch_format != 4):
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from bzrlib.fetch import greedy_fetch
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mutter("falling back to fetch logic to push between %s(%s) and %s(%s)",
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self, self._branch_format, branch_to, branch_to._branch_format)
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greedy_fetch(to_branch=branch_to, from_branch=self,
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revision=self.last_revision())
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store_pairs = ((self.text_store, branch_to.text_store),
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(self.inventory_store, branch_to.inventory_store),
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(self.revision_store, branch_to.revision_store))
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for from_store, to_store in store_pairs:
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copy_all(from_store, to_store)
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except UnlistableStore:
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raise UnlistableBranch(from_store)
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def __init__(self, transport, init=False,
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relax_version_check=False):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch.
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transport -- A Transport object, defining how to access files.
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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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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relax_version_check -- If true, the usual check for the branch
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version is not applied. This is intended only for
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upgrade/recovery type use; it's not guaranteed that
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all operations will work on old format branches.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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from bzrlib.store import ImmutableStore
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assert isinstance(transport, Transport), \
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"%r is not a Transport" % transport
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self._transport = transport
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self.base = os.path.realpath(base)
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self._make_control()
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self.base = find_branch_root(base)
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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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self._check_format(relax_version_check)
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def get_store(name, compressed=True, prefixed=False):
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# FIXME: This approach of assuming stores are all entirely compressed
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# or entirely uncompressed is tidy, but breaks upgrade from
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# some existing branches where there's a mixture; we probably
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# still want the option to look for both.
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relpath = self._rel_controlfilename(name)
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store = CompressedTextStore(self._transport.clone(relpath),
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store = TextStore(self._transport.clone(relpath),
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#if self._transport.should_cache():
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# cache_path = os.path.join(self.cache_root, name)
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# os.mkdir(cache_path)
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# store = bzrlib.store.CachedStore(store, cache_path)
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def get_weave(name, prefixed=False):
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relpath = self._rel_controlfilename(name)
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ws = WeaveStore(self._transport.clone(relpath), prefixed=prefixed)
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if self._transport.should_cache():
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ws.enable_cache = True
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if self._branch_format == 4:
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self.inventory_store = get_store('inventory-store')
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self.text_store = get_store('text-store')
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self.revision_store = get_store('revision-store')
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elif self._branch_format == 5:
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self.control_weaves = get_weave('')
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self.weave_store = get_weave('weaves')
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self.revision_store = get_store('revision-store', compressed=False)
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elif self._branch_format == 6:
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self.control_weaves = get_weave('')
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self.weave_store = get_weave('weaves', prefixed=True)
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self.revision_store = get_store('revision-store', compressed=False,
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self.revision_store.register_suffix('sig')
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self._transaction = None
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def __str__(self):
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return '%s(%r)' % (self.__class__.__name__, self.base)
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return '%s(%r)' % (self.__class__.__name__, self._transport.base)
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__repr__ = __str__
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def __del__(self):
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if self._lock_mode or self._lock:
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from bzrlib.warnings import warn
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# XXX: This should show something every time, and be suitable for
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# headless operation and embedding
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warn("branch %r was not explicitly unlocked" % self)
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self._lock.unlock()
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# TODO: It might be best to do this somewhere else,
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# but it is nice for a Branch object to automatically
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# cache it's information.
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# Alternatively, we could have the Transport objects cache requests
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# See the earlier discussion about how major objects (like Branch)
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# should never expect their __del__ function to run.
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if hasattr(self, 'cache_root') and self.cache_root is not None:
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shutil.rmtree(self.cache_root)
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self.cache_root = None
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return self._transport.base
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base = property(_get_base, doc="The URL for the root of this branch.")
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def _finish_transaction(self):
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"""Exit the current transaction."""
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if self._transaction is None:
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raise errors.LockError('Branch %s is not in a transaction' %
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transaction = self._transaction
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self._transaction = None
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def get_transaction(self):
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"""Return the current active transaction.
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If no transaction is active, this returns a passthrough object
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for which all data is immediately flushed and no caching happens.
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if self._transaction is None:
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return transactions.PassThroughTransaction()
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return self._transaction
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def _set_transaction(self, new_transaction):
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"""Set a new active transaction."""
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if self._transaction is not None:
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raise errors.LockError('Branch %s is in a transaction already.' %
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self._transaction = new_transaction
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def lock_write(self):
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mutter("lock write: %s (%s)", self, self._lock_count)
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# TODO: Upgrade locking to support using a Transport,
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# and potentially a remote locking protocol
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if self._lock_mode:
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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 = self._transport.lock_write(
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self._rel_controlfilename('branch-lock'))
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self._lock_mode = 'w'
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self._lock_count = 1
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self._set_transaction(transactions.PassThroughTransaction())
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def lock_read(self):
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mutter("lock read: %s (%s)", self, self._lock_count)
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if self._lock_mode:
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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 = self._transport.lock_read(
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self._rel_controlfilename('branch-lock'))
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self._lock_mode = 'r'
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self._lock_count = 1
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self._set_transaction(transactions.ReadOnlyTransaction())
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# 5K may be excessive, but hey, its a knob.
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self.get_transaction().set_cache_size(5000)
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def unlock(self):
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mutter("unlock: %s (%s)", self, self._lock_count)
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if not self._lock_mode:
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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._finish_transaction()
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self._lock.unlock()
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self._lock = None
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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 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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"""Return absolute filename for something in the branch
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XXX: Robert Collins 20051017 what is this used for? why is it a branch
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method and not a tree method.
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return self._transport.abspath(name)
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def _rel_controlfilename(self, file_or_path):
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if not isinstance(file_or_path, basestring):
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file_or_path = '/'.join(file_or_path)
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if file_or_path == '':
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return bzrlib.transport.urlescape(bzrlib.BZRDIR + '/' + file_or_path)
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def controlfilename(self, file_or_path):
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"""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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return self._transport.abspath(self._rel_controlfilename(file_or_path))
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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404
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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relpath = self._rel_controlfilename(file_or_path)
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#TODO: codecs.open() buffers linewise, so it was overloaded with
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# a much larger buffer, do we need to do the same for getreader/getwriter?
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return self._transport.get(relpath)
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raise BzrError("Branch.controlfile(mode='wb') is not supported, use put_controlfiles")
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# XXX: Do we really want errors='replace'? Perhaps it should be
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# an error, or at least reported, if there's incorrectly-encoded
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# data inside a file.
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# <https://launchpad.net/products/bzr/+bug/3823>
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return codecs.getreader('utf-8')(self._transport.get(relpath), errors='replace')
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raise BzrError("Branch.controlfile(mode='w') is not supported, use put_controlfiles")
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raise BzrError("invalid controlfile mode %r" % mode)
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def put_controlfile(self, path, f, encode=True):
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"""Write an entry as a controlfile.
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:param path: The path to put the file, relative to the .bzr control
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:param f: A file-like or string object whose contents should be copied.
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:param encode: If true, encode the contents as utf-8
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self.put_controlfiles([(path, f)], encode=encode)
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def put_controlfiles(self, files, encode=True):
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"""Write several entries as controlfiles.
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:param files: A list of [(path, file)] pairs, where the path is the directory
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underneath the bzr control directory
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:param encode: If true, encode the contents as utf-8
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for path, f in files:
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if isinstance(f, basestring):
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f = f.encode('utf-8', 'replace')
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f = codecs.getwriter('utf-8')(f, errors='replace')
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path = self._rel_controlfilename(path)
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ctrl_files.append((path, f))
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self._transport.put_multi(ctrl_files)
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def _make_control(self):
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from bzrlib.inventory import Inventory
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from bzrlib.weavefile import write_weave_v5
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from bzrlib.weave import Weave
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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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# Create an empty inventory
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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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bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
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empty_inv = sio.getvalue()
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bzrlib.weavefile.write_weave_v5(Weave(), sio)
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empty_weave = sio.getvalue()
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dirs = [[], 'revision-store', 'weaves']
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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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('branch-format', BZR_BRANCH_FORMAT_6),
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('revision-history', ''),
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('pending-merges', ''),
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('inventory', empty_inv),
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('inventory.weave', empty_weave),
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('ancestry.weave', empty_weave)
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cfn = self._rel_controlfilename
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self._transport.mkdir_multi([cfn(d) for d in dirs])
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self.put_controlfiles(files)
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mutter('created control directory in ' + self._transport.base)
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def _check_format(self, relax_version_check):
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"""Check this branch format is supported.
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The current tool only supports the current unstable format.
493
The format level is stored, as an integer, in
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self._branch_format for code that needs to check it later.
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In the future, we might need different in-memory Branch
344
497
classes to support downlevel branches. But not yet.
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# This ignores newlines so that we can open branches created
347
# on Windows from Linux and so on. I think it might be better
348
# 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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fmt = self.controlfile('branch-format', 'r').read()
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raise NotBranchError(path=self.base)
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mutter("got branch format %r", fmt)
504
if fmt == BZR_BRANCH_FORMAT_6:
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self._branch_format = 6
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elif fmt == BZR_BRANCH_FORMAT_5:
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self._branch_format = 5
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elif fmt == BZR_BRANCH_FORMAT_4:
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self._branch_format = 4
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if (not relax_version_check
512
and self._branch_format not in (5, 6)):
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raise errors.UnsupportedFormatError(
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'sorry, branch format %r not supported' % fmt,
353
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['use a different bzr version',
354
'or remove the .bzr directory and "bzr init" again'])
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'or remove the .bzr directory'
517
' and "bzr init" again'])
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def get_root_id(self):
357
520
"""Return the id of this branches root"""
358
inv = self.read_working_inventory()
521
inv = self.get_inventory(self.last_revision())
359
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return inv.root.file_id
361
def set_root_id(self, file_id):
362
inv = self.read_working_inventory()
363
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
369
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
380
f = self.controlfile('inventory', 'rb')
381
return bzrlib.xml.serializer_v4.read_inventory(f)
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def _write_inventory(self, inv):
387
"""Update the working inventory.
389
That is to say, the inventory describing changes underway, that
390
will be committed to the next revision.
392
from bzrlib.atomicfile import AtomicFile
396
f = AtomicFile(self.controlfilename('inventory'), 'wb')
398
bzrlib.xml.serializer_v4.write_inventory(inv, f)
405
mutter('wrote working inventory')
408
inventory = property(read_working_inventory, _write_inventory, None,
409
"""Inventory for the working copy.""")
412
525
def add(self, files, ids=None):
413
526
"""Make files versioned.
445
558
assert(len(ids) == len(files))
449
inv = self.read_working_inventory()
450
for f,file_id in zip(files, ids):
451
if is_control_file(f):
452
raise BzrError("cannot add control file %s" % quotefn(f))
457
raise BzrError("cannot add top-level %r" % f)
459
fullpath = os.path.normpath(self.abspath(f))
462
kind = file_kind(fullpath)
464
# maybe something better?
465
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
467
if kind != 'file' and kind != 'directory':
468
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
471
file_id = gen_file_id(f)
472
inv.add_path(f, kind=kind, file_id=file_id)
474
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
476
self._write_inventory(inv)
560
inv = self.working_tree().read_working_inventory()
561
for f,file_id in zip(files, ids):
562
if is_control_file(f):
563
raise BzrError("cannot add control file %s" % quotefn(f))
568
raise BzrError("cannot add top-level %r" % f)
570
fullpath = os.path.normpath(self.abspath(f))
573
kind = file_kind(fullpath)
575
# maybe something better?
576
raise BzrError('cannot add: not a regular file, symlink or directory: %s' % quotefn(f))
578
if not InventoryEntry.versionable_kind(kind):
579
raise BzrError('cannot add: not a versionable file ('
580
'i.e. regular file, symlink or directory): %s' % quotefn(f))
583
file_id = gen_file_id(f)
584
inv.add_path(f, kind=kind, file_id=file_id)
586
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
588
self.working_tree()._write_inventory(inv)
481
591
def print_file(self, file, revno):
482
592
"""Print `file` to stdout."""
485
tree = self.revision_tree(self.get_rev_id(revno))
486
# use inventory as it was in that revision
487
file_id = tree.inventory.path2id(file)
489
raise BzrError("%r is not present in revision %s" % (file, revno))
490
tree.print_file(file_id)
495
def remove(self, files, verbose=False):
496
"""Mark nominated files for removal from the inventory.
498
This does not remove their text. This does not run on
500
TODO: Refuse to remove modified files unless --force is given?
502
TODO: Do something useful with directories.
504
TODO: Should this remove the text or not? Tough call; not
505
removing may be useful and the user can just use use rm, and
506
is the opposite of add. Removing it is consistent with most
507
other tools. Maybe an option.
509
## TODO: Normalize names
510
## TODO: Remove nested loops; better scalability
511
if isinstance(files, basestring):
517
tree = self.working_tree()
520
# do this before any modifications
524
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
525
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
527
# having remove it, it must be either ignored or unknown
528
if tree.is_ignored(f):
532
show_status(new_status, inv[fid].kind, quotefn(f))
535
self._write_inventory(inv)
540
# FIXME: this doesn't need to be a branch method
541
def set_inventory(self, new_inventory_list):
542
from bzrlib.inventory import Inventory, InventoryEntry
543
inv = Inventory(self.get_root_id())
544
for path, file_id, parent, kind in new_inventory_list:
545
name = os.path.basename(path)
548
inv.add(InventoryEntry(file_id, name, kind, parent))
549
self._write_inventory(inv)
593
tree = self.revision_tree(self.get_rev_id(revno))
594
# use inventory as it was in that revision
595
file_id = tree.inventory.path2id(file)
597
raise BzrError("%r is not present in revision %s" % (file, revno))
598
tree.print_file(file_id)
552
600
def unknowns(self):
553
601
"""Return all unknown files.
555
603
These are files in the working directory that are not versioned or
556
604
control files or ignored.
606
>>> from bzrlib.workingtree import WorkingTree
558
607
>>> b = ScratchBranch(files=['foo', 'foo~'])
559
>>> list(b.unknowns())
608
>>> map(str, b.unknowns())
562
611
>>> list(b.unknowns())
613
>>> WorkingTree(b.base, b).remove('foo')
565
614
>>> list(b.unknowns())
568
617
return self.working_tree().unknowns()
571
620
def append_revision(self, *revision_ids):
572
from bzrlib.atomicfile import AtomicFile
574
621
for revision_id in revision_ids:
575
622
mutter("add {%s} to revision-history" % revision_id)
577
623
rev_history = self.revision_history()
578
624
rev_history.extend(revision_ids)
580
f = AtomicFile(self.controlfilename('revision-history'))
582
for rev_id in rev_history:
625
self.set_revision_history(rev_history)
628
def set_revision_history(self, rev_history):
629
self.put_controlfile('revision-history', '\n'.join(rev_history))
631
def has_revision(self, revision_id):
632
"""True if this branch has a copy of the revision.
634
This does not necessarily imply the revision is merge
635
or on the mainline."""
636
return (revision_id is None
637
or self.revision_store.has_id(revision_id))
589
640
def get_revision_xml_file(self, revision_id):
590
641
"""Return XML file object for revision object."""
591
642
if not revision_id or not isinstance(revision_id, basestring):
592
raise InvalidRevisionId(revision_id)
643
raise InvalidRevisionId(revision_id=revision_id, branch=self)
597
return self.revision_store[revision_id]
599
raise bzrlib.errors.NoSuchRevision(self, revision_id)
645
return self.revision_store.get(revision_id)
646
except (IndexError, KeyError):
647
raise bzrlib.errors.NoSuchRevision(self, revision_id)
605
650
get_revision_xml = get_revision_xml_file
652
def get_revision_xml(self, revision_id):
653
return self.get_revision_xml_file(revision_id).read()
608
656
def get_revision(self, revision_id):
609
657
"""Return the Revision object for a named revision"""
610
658
xml_file = self.get_revision_xml_file(revision_id)
613
r = bzrlib.xml.serializer_v4.read_revision(xml_file)
661
r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
614
662
except SyntaxError, e:
615
663
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
651
696
# the revision, (add signatures/remove signatures) and still
652
697
# have all hash pointers stay consistent.
653
698
# But for now, just hash the contents.
654
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
657
def get_inventory(self, inventory_id):
658
"""Get Inventory object by hash.
660
TODO: Perhaps for this and similar methods, take a revision
661
parameter which can be either an integer revno or a
663
from bzrlib.inventory import Inventory
665
f = self.get_inventory_xml_file(inventory_id)
666
return bzrlib.xml.serializer_v4.read_inventory(f)
669
def get_inventory_xml(self, inventory_id):
699
return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
701
def get_ancestry(self, revision_id):
702
"""Return a list of revision-ids integrated by a revision.
704
This currently returns a list, but the ordering is not guaranteed:
707
if revision_id is None:
709
w = self.get_inventory_weave()
710
return [None] + map(w.idx_to_name,
711
w.inclusions([w.lookup(revision_id)]))
713
def get_inventory_weave(self):
714
return self.control_weaves.get_weave('inventory',
715
self.get_transaction())
717
def get_inventory(self, revision_id):
718
"""Get Inventory object by hash."""
719
xml = self.get_inventory_xml(revision_id)
720
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
722
def get_inventory_xml(self, revision_id):
670
723
"""Get inventory XML as a file object."""
671
return self.inventory_store[inventory_id]
673
get_inventory_xml_file = get_inventory_xml
676
def get_inventory_sha1(self, inventory_id):
725
assert isinstance(revision_id, basestring), type(revision_id)
726
iw = self.get_inventory_weave()
727
return iw.get_text(iw.lookup(revision_id))
729
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
731
def get_inventory_sha1(self, revision_id):
677
732
"""Return the sha1 hash of the inventory entry
679
return sha_file(self.get_inventory_xml(inventory_id))
734
return self.get_revision(revision_id).inventory_sha1
682
736
def get_revision_inventory(self, revision_id):
683
737
"""Return inventory of a past revision."""
684
# bzr 0.0.6 imposes the constraint that the inventory_id
738
# TODO: Unify this with get_inventory()
739
# bzr 0.0.6 and later imposes the constraint that the inventory_id
685
740
# must be the same as its revision, so this is trivial.
686
741
if revision_id == None:
687
from bzrlib.inventory import Inventory
688
return Inventory(self.get_root_id())
742
# This does not make sense: if there is no revision,
743
# then it is the current tree inventory surely ?!
744
# and thus get_root_id() is something that looks at the last
745
# commit on the branch, and the get_root_id is an inventory check.
746
raise NotImplementedError
747
# return Inventory(self.get_root_id())
690
749
return self.get_inventory(revision_id)
693
752
def revision_history(self):
694
"""Return sequence of revision hashes on to this branch.
696
>>> ScratchBranch().revision_history()
701
return [l.rstrip('\r\n') for l in
702
self.controlfile('revision-history', 'r').readlines()]
707
def common_ancestor(self, other, self_revno=None, other_revno=None):
709
>>> from bzrlib.commit import commit
710
>>> sb = ScratchBranch(files=['foo', 'foo~'])
711
>>> sb.common_ancestor(sb) == (None, None)
713
>>> commit(sb, "Committing first revision", verbose=False)
714
>>> sb.common_ancestor(sb)[0]
716
>>> clone = sb.clone()
717
>>> commit(sb, "Committing second revision", verbose=False)
718
>>> sb.common_ancestor(sb)[0]
720
>>> sb.common_ancestor(clone)[0]
722
>>> commit(clone, "Committing divergent second revision",
724
>>> sb.common_ancestor(clone)[0]
726
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
728
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
730
>>> clone2 = sb.clone()
731
>>> sb.common_ancestor(clone2)[0]
733
>>> sb.common_ancestor(clone2, self_revno=1)[0]
735
>>> sb.common_ancestor(clone2, other_revno=1)[0]
738
my_history = self.revision_history()
739
other_history = other.revision_history()
740
if self_revno is None:
741
self_revno = len(my_history)
742
if other_revno is None:
743
other_revno = len(other_history)
744
indices = range(min((self_revno, other_revno)))
747
if my_history[r] == other_history[r]:
748
return r+1, my_history[r]
753
"""Return sequence of revision hashes on to this branch."""
754
transaction = self.get_transaction()
755
history = transaction.map.find_revision_history()
756
if history is not None:
757
mutter("cache hit for revision-history in %s", self)
759
history = [l.rstrip('\r\n') for l in
760
self.controlfile('revision-history', 'r').readlines()]
761
transaction.map.add_revision_history(history)
762
# this call is disabled because revision_history is
763
# not really an object yet, and the transaction is for objects.
764
# transaction.register_clean(history, precious=True)
753
768
"""Return current revision number for this branch.
807
821
if stop_revision is None:
808
822
stop_revision = other_len
809
elif stop_revision > other_len:
810
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
824
assert isinstance(stop_revision, int)
825
if stop_revision > other_len:
826
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
812
827
return other_history[self_len:stop_revision]
815
829
def update_revisions(self, other, stop_revision=None):
816
"""Pull in all new revisions from other branch.
830
"""Pull in new perfect-fit revisions."""
818
831
from bzrlib.fetch import greedy_fetch
820
pb = bzrlib.ui.ui_factory.progress_bar()
821
pb.update('comparing histories')
823
revision_ids = self.missing_revisions(other, stop_revision)
825
if len(revision_ids) > 0:
826
count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
829
self.append_revision(*revision_ids)
830
## note("Added %d revisions." % count)
833
def install_revisions(self, other, revision_ids, pb):
834
if hasattr(other.revision_store, "prefetch"):
835
other.revision_store.prefetch(revision_ids)
836
if hasattr(other.inventory_store, "prefetch"):
837
inventory_ids = [other.get_revision(r).inventory_id
838
for r in revision_ids]
839
other.inventory_store.prefetch(inventory_ids)
842
pb = bzrlib.ui.ui_factory.progress_bar()
849
for i, rev_id in enumerate(revision_ids):
850
pb.update('fetching revision', i+1, len(revision_ids))
832
if stop_revision is None:
833
stop_revision = other.last_revision()
834
### Should this be checking is_ancestor instead of revision_history?
835
if (stop_revision is not None and
836
stop_revision in self.revision_history()):
838
greedy_fetch(to_branch=self, from_branch=other,
839
revision=stop_revision)
840
pullable_revs = self.pullable_revisions(other, stop_revision)
841
if len(pullable_revs) > 0:
842
self.append_revision(*pullable_revs)
844
def pullable_revisions(self, other, stop_revision):
845
other_revno = other.revision_id_to_revno(stop_revision)
847
return self.missing_revisions(other, other_revno)
848
except DivergedBranches, e:
852
rev = other.get_revision(rev_id)
853
except bzrlib.errors.NoSuchRevision:
857
revisions.append(rev)
858
inv = other.get_inventory(str(rev.inventory_id))
859
for key, entry in inv.iter_entries():
860
if entry.text_id is None:
862
if entry.text_id not in self.text_store:
863
needed_texts.add(entry.text_id)
867
count, cp_fail = self.text_store.copy_multi(other.text_store,
869
#print "Added %d texts." % count
870
inventory_ids = [ f.inventory_id for f in revisions ]
871
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
873
#print "Added %d inventories." % count
874
revision_ids = [ f.revision_id for f in revisions]
876
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
879
assert len(cp_fail) == 0
880
return count, failures
883
def commit(self, *args, **kw):
884
from bzrlib.commit import commit
885
commit(self, *args, **kw)
850
pullable_revs = get_intervening_revisions(self.last_revision(),
852
assert self.last_revision() not in pullable_revs
854
except bzrlib.errors.NotAncestor:
855
if is_ancestor(self.last_revision(), stop_revision, self):
888
860
def revision_id_to_revno(self, revision_id):
889
861
"""Given a revision id, return its revno"""
862
if revision_id is None:
890
864
history = self.revision_history()
892
866
return history.index(revision_id) + 1
893
867
except ValueError:
894
868
raise bzrlib.errors.NoSuchRevision(self, revision_id)
897
870
def get_rev_id(self, revno, history=None):
898
871
"""Find the revision id of the specified revno."""
911
884
an `EmptyTree` is returned."""
912
885
# TODO: refactor this to use an existing revision object
913
886
# so we don't need to read it in twice.
914
if revision_id == None:
887
if revision_id == None or revision_id == NULL_REVISION:
915
888
return EmptyTree()
917
890
inv = self.get_revision_inventory(revision_id)
918
return RevisionTree(self.text_store, inv)
891
return RevisionTree(self.weave_store, inv, revision_id)
921
893
def working_tree(self):
922
894
"""Return a `Tree` for the working copy."""
923
895
from bzrlib.workingtree import WorkingTree
924
return WorkingTree(self.base, self.read_working_inventory())
896
# TODO: In the future, perhaps WorkingTree should utilize Transport
897
# RobertCollins 20051003 - I don't think it should - working trees are
898
# much more complex to keep consistent than our careful .bzr subset.
899
# instead, we should say that working trees are local only, and optimise
901
if self._transport.base.find('://') != -1:
902
raise NoWorkingTree(self.base)
903
return WorkingTree(self.base, branch=self)
906
def pull(self, source, overwrite=False):
910
self.update_revisions(source)
911
except DivergedBranches:
914
self.set_revision_history(source.revision_history())
927
918
def basis_tree(self):
928
919
"""Return `Tree` object for last revision.
930
921
If there are no revisions yet, return an `EmptyTree`.
932
r = self.last_patch()
936
return RevisionTree(self.text_store, self.get_revision_inventory(r))
923
return self.revision_tree(self.last_revision())
940
926
def rename_one(self, from_rel, to_rel):
941
927
"""Rename one file.
943
929
This can change the directory or the filename or both.
931
tree = self.working_tree()
933
if not tree.has_filename(from_rel):
934
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
935
if tree.has_filename(to_rel):
936
raise BzrError("can't rename: new working file %r already exists" % to_rel)
938
file_id = inv.path2id(from_rel)
940
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
942
if inv.path2id(to_rel):
943
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
945
to_dir, to_tail = os.path.split(to_rel)
946
to_dir_id = inv.path2id(to_dir)
947
if to_dir_id == None and to_dir != '':
948
raise BzrError("can't determine destination directory id for %r" % to_dir)
950
mutter("rename_one:")
951
mutter(" file_id {%s}" % file_id)
952
mutter(" from_rel %r" % from_rel)
953
mutter(" to_rel %r" % to_rel)
954
mutter(" to_dir %r" % to_dir)
955
mutter(" to_dir_id {%s}" % to_dir_id)
957
inv.rename(file_id, to_dir_id, to_tail)
959
from_abs = self.abspath(from_rel)
960
to_abs = self.abspath(to_rel)
947
tree = self.working_tree()
949
if not tree.has_filename(from_rel):
950
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
951
if tree.has_filename(to_rel):
952
raise BzrError("can't rename: new working file %r already exists" % to_rel)
954
file_id = inv.path2id(from_rel)
956
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
958
if inv.path2id(to_rel):
959
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
961
to_dir, to_tail = os.path.split(to_rel)
962
to_dir_id = inv.path2id(to_dir)
963
if to_dir_id == None and to_dir != '':
964
raise BzrError("can't determine destination directory id for %r" % to_dir)
966
mutter("rename_one:")
967
mutter(" file_id {%s}" % file_id)
968
mutter(" from_rel %r" % from_rel)
969
mutter(" to_rel %r" % to_rel)
970
mutter(" to_dir %r" % to_dir)
971
mutter(" to_dir_id {%s}" % to_dir_id)
973
inv.rename(file_id, to_dir_id, to_tail)
975
from_abs = self.abspath(from_rel)
976
to_abs = self.abspath(to_rel)
978
os.rename(from_abs, to_abs)
980
raise BzrError("failed to rename %r to %r: %s"
981
% (from_abs, to_abs, e[1]),
982
["rename rolled back"])
984
self._write_inventory(inv)
962
rename(from_abs, to_abs)
964
raise BzrError("failed to rename %r to %r: %s"
965
% (from_abs, to_abs, e[1]),
966
["rename rolled back"])
968
self.working_tree()._write_inventory(inv)
989
971
def move(self, from_paths, to_name):
1001
983
entry that is moved.
1006
## TODO: Option to move IDs only
1007
assert not isinstance(from_paths, basestring)
1008
tree = self.working_tree()
1009
inv = tree.inventory
1010
to_abs = self.abspath(to_name)
1011
if not isdir(to_abs):
1012
raise BzrError("destination %r is not a directory" % to_abs)
1013
if not tree.has_filename(to_name):
1014
raise BzrError("destination %r not in working directory" % to_abs)
1015
to_dir_id = inv.path2id(to_name)
1016
if to_dir_id == None and to_name != '':
1017
raise BzrError("destination %r is not a versioned directory" % to_name)
1018
to_dir_ie = inv[to_dir_id]
1019
if to_dir_ie.kind not in ('directory', 'root_directory'):
1020
raise BzrError("destination %r is not a directory" % to_abs)
1022
to_idpath = inv.get_idpath(to_dir_id)
1024
for f in from_paths:
1025
if not tree.has_filename(f):
1026
raise BzrError("%r does not exist in working tree" % f)
1027
f_id = inv.path2id(f)
1029
raise BzrError("%r is not versioned" % f)
1030
name_tail = splitpath(f)[-1]
1031
dest_path = appendpath(to_name, name_tail)
1032
if tree.has_filename(dest_path):
1033
raise BzrError("destination %r already exists" % dest_path)
1034
if f_id in to_idpath:
1035
raise BzrError("can't move %r to a subdirectory of itself" % f)
1037
# OK, so there's a race here, it's possible that someone will
1038
# create a file in this interval and then the rename might be
1039
# left half-done. But we should have caught most problems.
1041
for f in from_paths:
1042
name_tail = splitpath(f)[-1]
1043
dest_path = appendpath(to_name, name_tail)
1044
result.append((f, dest_path))
1045
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1047
os.rename(self.abspath(f), self.abspath(dest_path))
1049
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1050
["rename rolled back"])
1052
self._write_inventory(inv)
986
## TODO: Option to move IDs only
987
assert not isinstance(from_paths, basestring)
988
tree = self.working_tree()
990
to_abs = self.abspath(to_name)
991
if not isdir(to_abs):
992
raise BzrError("destination %r is not a directory" % to_abs)
993
if not tree.has_filename(to_name):
994
raise BzrError("destination %r not in working directory" % to_abs)
995
to_dir_id = inv.path2id(to_name)
996
if to_dir_id == None and to_name != '':
997
raise BzrError("destination %r is not a versioned directory" % to_name)
998
to_dir_ie = inv[to_dir_id]
999
if to_dir_ie.kind not in ('directory', 'root_directory'):
1000
raise BzrError("destination %r is not a directory" % to_abs)
1002
to_idpath = inv.get_idpath(to_dir_id)
1004
for f in from_paths:
1005
if not tree.has_filename(f):
1006
raise BzrError("%r does not exist in working tree" % f)
1007
f_id = inv.path2id(f)
1009
raise BzrError("%r is not versioned" % f)
1010
name_tail = splitpath(f)[-1]
1011
dest_path = appendpath(to_name, name_tail)
1012
if tree.has_filename(dest_path):
1013
raise BzrError("destination %r already exists" % dest_path)
1014
if f_id in to_idpath:
1015
raise BzrError("can't move %r to a subdirectory of itself" % f)
1017
# OK, so there's a race here, it's possible that someone will
1018
# create a file in this interval and then the rename might be
1019
# left half-done. But we should have caught most problems.
1021
for f in from_paths:
1022
name_tail = splitpath(f)[-1]
1023
dest_path = appendpath(to_name, name_tail)
1024
result.append((f, dest_path))
1025
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1027
rename(self.abspath(f), self.abspath(dest_path))
1029
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1030
["rename rolled back"])
1032
self.working_tree()._write_inventory(inv)
1059
def revert(self, filenames, old_tree=None, backups=True):
1060
"""Restore selected files to the versions from a previous tree.
1063
If true (default) backups are made of files before
1066
from bzrlib.errors import NotVersionedError, BzrError
1067
from bzrlib.atomicfile import AtomicFile
1068
from bzrlib.osutils import backup_file
1070
inv = self.read_working_inventory()
1071
if old_tree is None:
1072
old_tree = self.basis_tree()
1073
old_inv = old_tree.inventory
1076
for fn in filenames:
1077
file_id = inv.path2id(fn)
1079
raise NotVersionedError("not a versioned file", fn)
1080
if not old_inv.has_id(file_id):
1081
raise BzrError("file not present in old tree", fn, file_id)
1082
nids.append((fn, file_id))
1084
# TODO: Rename back if it was previously at a different location
1086
# TODO: If given a directory, restore the entire contents from
1087
# the previous version.
1089
# TODO: Make a backup to a temporary file.
1091
# TODO: If the file previously didn't exist, delete it?
1092
for fn, file_id in nids:
1095
f = AtomicFile(fn, 'wb')
1097
f.write(old_tree.get_file(file_id).read())
1103
def pending_merges(self):
1104
"""Return a list of pending merges.
1106
These are revisions that have been merged into the working
1107
directory but not yet committed.
1109
cfn = self.controlfilename('pending-merges')
1110
if not os.path.exists(cfn):
1113
for l in self.controlfile('pending-merges', 'r').readlines():
1114
p.append(l.rstrip('\n'))
1118
def add_pending_merge(self, revision_id):
1119
from bzrlib.revision import validate_revision_id
1121
validate_revision_id(revision_id)
1123
p = self.pending_merges()
1124
if revision_id in p:
1126
p.append(revision_id)
1127
self.set_pending_merges(p)
1130
def set_pending_merges(self, rev_list):
1131
from bzrlib.atomicfile import AtomicFile
1134
f = AtomicFile(self.controlfilename('pending-merges'))
1145
1035
def get_parent(self):
1146
1036
"""Return the parent location of the branch.
1190
1087
if revno < 1 or revno > self.revno():
1191
1088
raise InvalidRevisionNumber(revno)
1196
class ScratchBranch(LocalBranch):
1090
def sign_revision(self, revision_id, gpg_strategy):
1091
plaintext = Testament.from_revision(self, revision_id).as_short_text()
1092
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1095
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1096
self.revision_store.add(StringIO(gpg_strategy.sign(plaintext)),
1100
class ScratchBranch(_Branch):
1197
1101
"""Special test class: a branch that cleans up after itself.
1199
1103
>>> b = ScratchBranch()
1200
1104
>>> isdir(b.base)
1202
1106
>>> bd = b.base
1107
>>> b._transport.__del__()
1207
def __init__(self, files=[], dirs=[], base=None):
1112
def __init__(self, files=[], dirs=[], transport=None):
1208
1113
"""Make a test branch.
1210
1115
This creates a temporary directory and runs init-tree in it.
1212
1117
If any files are listed, they are created in the working copy.
1214
from tempfile import mkdtemp
1219
LocalBranch.__init__(self, base, init=init)
1119
if transport is None:
1120
transport = bzrlib.transport.local.ScratchTransport()
1121
super(ScratchBranch, self).__init__(transport, init=True)
1123
super(ScratchBranch, self).__init__(transport)
1221
os.mkdir(self.abspath(d))
1126
self._transport.mkdir(d)
1223
1128
for f in files:
1224
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1129
self._transport.put(f, 'content of %s' % f)
1227
1132
def clone(self):
1229
1134
>>> orig = ScratchBranch(files=["file1", "file2"])
1230
1135
>>> clone = orig.clone()
1231
>>> os.path.samefile(orig.base, clone.base)
1136
>>> if os.name != 'nt':
1137
... os.path.samefile(orig.base, clone.base)
1139
... orig.base == clone.base
1233
1142
>>> os.path.isfile(os.path.join(clone.base, "file1"))