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- Committer: Martin Pool
- Date: 2005-07-07 10:22:02 UTC
- Revision ID: mbp@sourcefrog.net-20050707102201-2d2a13a25098b101
- rearrange and clear up merged weave
- files added:
- bzrlib/meta_store.py
- plugins/changeset
- files removed:
- HACKING
- bzrlib/store
- bzrlib/transport
- bzrlib/util
- contrib/emacs
- files renamed:
- contrib/newinventory.py => bzrlib/newinventory.py
- bzrlib/store/__init__.py => bzrlib/store.py
- bzrlib/util/effbot/ => effbot/
- bzrlib/util/elementtree/ => elementtree/
- bzrlib/plugins/ => plugins/
- bzrlib/selftest/test_weave.py => tools/testweave.py
- bzrlib/util/urlgrabber/ => urlgrabber/
- files modified:
- .bzrignore
added
removed
bzrlib/branch.py
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import sys
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import os
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import errno
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from warnings import warn
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from cStringIO import StringIO
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import sys, os
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import bzrlib
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from bzrlib.inventory import InventoryEntry
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import bzrlib.inventory as inventory
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import (isdir, quotefn, compact_date, rand_bytes,
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rename, splitpath, sha_file, appendpath,
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file_kind)
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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)
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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.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.transport import Transport, get_transport
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import bzrlib.xml5
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import bzrlib.ui
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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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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError
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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 find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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import remotebranch
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return remotebranch.RemoteBranch(f, **args)
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else:
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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 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 meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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os.mkdir(cache_path)
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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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return br
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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if tail:
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s.insert(0, tail)
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else:
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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return os.sep.join(s)
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def find_branch_root(t):
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"""Find the branch root enclosing the transport's base.
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t is a Transport object.
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It is not necessary that the base of t exists.
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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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"""
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orig_base = t.base
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run into the root."""
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if f == None:
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f = os.getcwd()
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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else:
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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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orig_f = f
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while True:
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if t.has(bzrlib.BZRDIR):
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return t
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new_t = t.clone('..')
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if new_t.base == t.base:
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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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return f
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head, tail = os.path.split(f)
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if head == 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_base)
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t = new_t
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raise BzrError('%r is not in a branch' % orig_f)
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f = head
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
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class NoSuchRevision(BzrError):
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def __init__(self, branch, revision):
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self.branch = branch
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self.revision = revision
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msg = "Branch %s has no revision %d" % (branch, revision)
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BzrError.__init__(self, msg)
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######################################################################
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"""Branch holding a history of revisions.
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base
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Base directory/url of the branch.
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"""
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base = None
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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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@staticmethod
127
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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@staticmethod
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def open(base):
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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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return _Branch(t)
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@staticmethod
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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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"""
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t = get_transport(url)
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t = find_branch_root(t)
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return _Branch(t)
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@staticmethod
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def initialize(base):
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"""Create a new branch, rooted at 'base' (url)"""
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t = get_transport(base)
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return _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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"""
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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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really matter if it's on an nfs/smb/afs/coda/... share, as long as
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it's writable, and can be accessed via the normal filesystem API.
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Base directory of the branch.
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_lock_mode
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None, or 'r' or 'w'
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_lock
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Lock object from bzrlib.lock.
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"""
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# We actually expect this class to be somewhat short-lived; part of its
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# purpose is to try to isolate what bits of the branch logic are tied to
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# filesystem access, so that in a later step, we can extricate them to
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# a separarte ("storage") class.
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base = None
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_lock_mode = None
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_lock_count = None
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_lock = None
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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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return
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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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try:
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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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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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transport -- A Transport object, defining how to access files.
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(If a string, transport.transport() will be used to
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create a Transport object)
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base -- Base directory for the branch.
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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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be versioned.
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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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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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"""
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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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from bzrlib.store import ImmutableStore
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if init:
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self.base = os.path.realpath(base)
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self._make_control()
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self._check_format(relax_version_check)
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def get_store(name, compressed=True):
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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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if compressed:
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store = CompressedTextStore(self._transport.clone(relpath))
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else:
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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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return store
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def get_weave(name):
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relpath = self._rel_controlfilename(name)
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ws = WeaveStore(self._transport.clone(relpath))
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if self._transport.should_cache():
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ws.enable_cache = True
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return ws
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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 find_root:
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self.base = find_branch_root(base)
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else:
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
177
from errors import NotBranchError
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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._check_format()
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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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def __str__(self):
273
return '%s(%r)' % (self.__class__.__name__, self._transport.base)
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return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
280
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if self._lock_mode or self._lock:
281
# XXX: This should show something every time, and be suitable for
282
# headless operation and embedding
197
from warnings import warn
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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
288
# cache it's information.
289
# Alternatively, we could have the Transport objects cache requests
290
# See the earlier discussion about how major objects (like Branch)
291
# should never expect their __del__ function to run.
292
if hasattr(self, 'cache_root') and self.cache_root is not None:
293
try:
294
import shutil
295
shutil.rmtree(self.cache_root)
296
except:
297
pass
298
self.cache_root = None
299
300
def _get_base(self):
301
if self._transport:
302
return self._transport.base
303
return None
304
305
base = property(_get_base)
306
201
307
202
308
203
def lock_write(self):
309
# TODO: Upgrade locking to support using a Transport,
310
# and potentially a remote locking protocol
311
204
if self._lock_mode:
312
205
if self._lock_mode != 'w':
206
from errors import LockError
313
207
raise LockError("can't upgrade to a write lock from %r" %
314
208
self._lock_mode)
315
209
self._lock_count += 1
316
210
else:
317
self._lock = self._transport.lock_write(
318
self._rel_controlfilename('branch-lock'))
211
from bzrlib.lock import WriteLock
212
213
self._lock = WriteLock(self.controlfilename('branch-lock'))
319
214
self._lock_mode = 'w'
320
215
self._lock_count = 1
321
216
322
217
218
323
219
def lock_read(self):
324
220
if self._lock_mode:
325
221
assert self._lock_mode in ('r', 'w'), \
326
222
"invalid lock mode %r" % self._lock_mode
327
223
self._lock_count += 1
328
224
else:
329
self._lock = self._transport.lock_read(
330
self._rel_controlfilename('branch-lock'))
225
from bzrlib.lock import ReadLock
226
227
self._lock = ReadLock(self.controlfilename('branch-lock'))
331
228
self._lock_mode = 'r'
332
229
self._lock_count = 1
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230
231
232
334
233
def unlock(self):
335
234
if not self._lock_mode:
235
from errors import LockError
336
236
raise LockError('branch %r is not locked' % (self))
337
237
338
238
if self._lock_count > 1:
342
242
self._lock = None
343
243
self._lock_mode = self._lock_count = None
344
244
245
345
246
def abspath(self, name):
346
247
"""Return absolute filename for something in the branch"""
347
return self._transport.abspath(name)
248
return os.path.join(self.base, name)
249
348
250
349
251
def relpath(self, path):
350
252
"""Return path relative to this branch of something inside it.
351
253
352
254
Raises an error if path is not in this branch."""
353
return self._transport.relpath(path)
354
355
356
def _rel_controlfilename(self, file_or_path):
255
return _relpath(self.base, path)
256
257
258
def controlfilename(self, file_or_path):
259
"""Return location relative to branch."""
357
260
if isinstance(file_or_path, basestring):
358
261
file_or_path = [file_or_path]
359
return [bzrlib.BZRDIR] + file_or_path
360
361
def controlfilename(self, file_or_path):
362
"""Return location relative to branch."""
363
return self._transport.abspath(self._rel_controlfilename(file_or_path))
262
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
364
263
365
264
366
265
def controlfile(self, file_or_path, mode='r'):
374
273
Controlfiles should almost never be opened in write mode but
375
274
rather should be atomically copied and replaced using atomicfile.
376
275
"""
377
import codecs
378
379
relpath = self._rel_controlfilename(file_or_path)
380
#TODO: codecs.open() buffers linewise, so it was overloaded with
381
# a much larger buffer, do we need to do the same for getreader/getwriter?
382
if mode == 'rb':
383
return self._transport.get(relpath)
384
elif mode == 'wb':
385
raise BzrError("Branch.controlfile(mode='wb') is not supported, use put_controlfiles")
386
elif mode == 'r':
387
return codecs.getreader('utf-8')(self._transport.get(relpath), errors='replace')
388
elif mode == 'w':
389
raise BzrError("Branch.controlfile(mode='w') is not supported, use put_controlfiles")
276
277
fn = self.controlfilename(file_or_path)
278
279
if mode == 'rb' or mode == 'wb':
280
return file(fn, mode)
281
elif mode == 'r' or mode == 'w':
282
# open in binary mode anyhow so there's no newline translation;
283
# codecs uses line buffering by default; don't want that.
284
import codecs
285
return codecs.open(fn, mode + 'b', 'utf-8',
286
buffering=60000)
390
287
else:
391
288
raise BzrError("invalid controlfile mode %r" % mode)
392
289
393
def put_controlfile(self, path, f, encode=True):
394
"""Write an entry as a controlfile.
395
396
:param path: The path to put the file, relative to the .bzr control
397
directory
398
:param f: A file-like or string object whose contents should be copied.
399
:param encode: If true, encode the contents as utf-8
400
"""
401
self.put_controlfiles([(path, f)], encode=encode)
402
403
def put_controlfiles(self, files, encode=True):
404
"""Write several entries as controlfiles.
405
406
:param files: A list of [(path, file)] pairs, where the path is the directory
407
underneath the bzr control directory
408
:param encode: If true, encode the contents as utf-8
409
"""
410
import codecs
411
ctrl_files = []
412
for path, f in files:
413
if encode:
414
if isinstance(f, basestring):
415
f = f.encode('utf-8', 'replace')
416
else:
417
f = codecs.getwriter('utf-8')(f, errors='replace')
418
path = self._rel_controlfilename(path)
419
ctrl_files.append((path, f))
420
self._transport.put_multi(ctrl_files)
290
421
291
422
292
def _make_control(self):
423
293
from bzrlib.inventory import Inventory
424
from bzrlib.weavefile import write_weave_v5
425
from bzrlib.weave import Weave
294
from bzrlib.xml import pack_xml
426
295
427
# Create an empty inventory
428
sio = StringIO()
429
# if we want per-tree root ids then this is the place to set
430
# them; they're not needed for now and so ommitted for
431
# simplicity.
432
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
433
empty_inv = sio.getvalue()
434
sio = StringIO()
435
bzrlib.weavefile.write_weave_v5(Weave(), sio)
436
empty_weave = sio.getvalue()
437
438
dirs = [[], 'revision-store', 'weaves']
439
files = [('README',
296
os.mkdir(self.controlfilename([]))
297
self.controlfile('README', 'w').write(
440
298
"This is a Bazaar-NG control directory.\n"
441
"Do not change any files in this directory.\n"),
442
('branch-format', BZR_BRANCH_FORMAT_5),
443
('revision-history', ''),
444
('branch-name', ''),
445
('branch-lock', ''),
446
('pending-merges', ''),
447
('inventory', empty_inv),
448
('inventory.weave', empty_weave),
449
('ancestry.weave', empty_weave)
450
]
451
cfn = self._rel_controlfilename
452
self._transport.mkdir_multi([cfn(d) for d in dirs])
453
self.put_controlfiles(files)
454
mutter('created control directory in ' + self._transport.base)
455
456
def _check_format(self, relax_version_check):
299
"Do not change any files in this directory.\n")
300
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
301
for d in ('text-store', 'inventory-store', 'revision-store'):
302
os.mkdir(self.controlfilename(d))
303
for f in ('revision-history', 'merged-patches',
304
'pending-merged-patches', 'branch-name',
305
'branch-lock',
306
'pending-merges'):
307
self.controlfile(f, 'w').write('')
308
mutter('created control directory in ' + self.base)
309
310
pack_xml(Inventory(), self.controlfile('inventory','w'))
311
312
313
def _check_format(self):
457
314
"""Check this branch format is supported.
458
315
459
The format level is stored, as an integer, in
460
self._branch_format for code that needs to check it later.
316
The current tool only supports the current unstable format.
461
317
462
318
In the future, we might need different in-memory Branch
463
319
classes to support downlevel branches. But not yet.
464
320
"""
465
try:
466
fmt = self.controlfile('branch-format', 'r').read()
467
except NoSuchFile:
468
raise NotBranchError(self.base)
469
mutter("got branch format %r", fmt)
470
if fmt == BZR_BRANCH_FORMAT_5:
471
self._branch_format = 5
472
elif fmt == BZR_BRANCH_FORMAT_4:
473
self._branch_format = 4
474
475
if (not relax_version_check
476
and self._branch_format != 5):
321
# This ignores newlines so that we can open branches created
322
# on Windows from Linux and so on. I think it might be better
323
# to always make all internal files in unix format.
324
fmt = self.controlfile('branch-format', 'r').read()
325
fmt.replace('\r\n', '')
326
if fmt != BZR_BRANCH_FORMAT:
477
327
raise BzrError('sorry, branch format %r not supported' % fmt,
478
328
['use a different bzr version',
479
'or remove the .bzr directory'
480
' and "bzr init" again'])
481
482
def get_root_id(self):
483
"""Return the id of this branches root"""
484
inv = self.read_working_inventory()
485
return inv.root.file_id
486
487
def set_root_id(self, file_id):
488
inv = self.read_working_inventory()
489
orig_root_id = inv.root.file_id
490
del inv._byid[inv.root.file_id]
491
inv.root.file_id = file_id
492
inv._byid[inv.root.file_id] = inv.root
493
for fid in inv:
494
entry = inv[fid]
495
if entry.parent_id in (None, orig_root_id):
496
entry.parent_id = inv.root.file_id
497
self._write_inventory(inv)
329
'or remove the .bzr directory and "bzr init" again'])
330
331
498
332
499
333
def read_working_inventory(self):
500
334
"""Read the working inventory."""
335
from bzrlib.inventory import Inventory
336
from bzrlib.xml import unpack_xml
337
from time import time
338
before = time()
501
339
self.lock_read()
502
340
try:
503
341
# ElementTree does its own conversion from UTF-8, so open in
504
342
# binary.
505
f = self.controlfile('inventory', 'rb')
506
return bzrlib.xml5.serializer_v5.read_inventory(f)
343
inv = unpack_xml(Inventory,
344
self.controlfile('inventory', 'rb'))
345
mutter("loaded inventory of %d items in %f"
346
% (len(inv), time() - before))
347
return inv
507
348
finally:
508
349
self.unlock()
509
350
514
355
That is to say, the inventory describing changes underway, that
515
356
will be committed to the next revision.
516
357
"""
517
from cStringIO import StringIO
358
from bzrlib.atomicfile import AtomicFile
359
from bzrlib.xml import pack_xml
360
518
361
self.lock_write()
519
362
try:
520
sio = StringIO()
521
bzrlib.xml5.serializer_v5.write_inventory(inv, sio)
522
sio.seek(0)
523
# Transport handles atomicity
524
self.put_controlfile('inventory', sio)
363
f = AtomicFile(self.controlfilename('inventory'), 'wb')
364
try:
365
pack_xml(inv, f)
366
f.commit()
367
finally:
368
f.close()
525
369
finally:
526
370
self.unlock()
527
371
528
372
mutter('wrote working inventory')
529
373
374
530
375
inventory = property(read_working_inventory, _write_inventory, None,
531
376
"""Inventory for the working copy.""")
532
377
533
def add(self, files, ids=None):
378
379
def add(self, files, verbose=False, ids=None):
534
380
"""Make files versioned.
535
381
536
Note that the command line normally calls smart_add instead,
537
which can automatically recurse.
382
Note that the command line normally calls smart_add instead.
538
383
539
384
This puts the files in the Added state, so that they will be
540
385
recorded by the next commit.
550
395
TODO: Perhaps have an option to add the ids even if the files do
551
396
not (yet) exist.
552
397
553
TODO: Perhaps yield the ids and paths as they're added.
398
TODO: Perhaps return the ids of the files? But then again it
399
is easy to retrieve them if they're needed.
400
401
TODO: Adding a directory should optionally recurse down and
402
add all non-ignored children. Perhaps do that in a
403
higher-level method.
554
404
"""
405
from bzrlib.textui import show_status
555
406
# TODO: Re-adding a file that is removed in the working copy
556
407
# should probably put it back with the previous ID.
557
408
if isinstance(files, basestring):
583
434
kind = file_kind(fullpath)
584
435
except OSError:
585
436
# maybe something better?
586
raise BzrError('cannot add: not a regular file, symlink or directory: %s' % quotefn(f))
437
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
587
438
588
if not InventoryEntry.versionable_kind(kind):
589
raise BzrError('cannot add: not a versionable file ('
590
'i.e. regular file, symlink or directory): %s' % quotefn(f))
439
if kind != 'file' and kind != 'directory':
440
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
591
441
592
442
if file_id is None:
593
443
file_id = gen_file_id(f)
594
444
inv.add_path(f, kind=kind, file_id=file_id)
595
445
446
if verbose:
447
print 'added', quotefn(f)
448
596
449
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
597
450
598
451
self._write_inventory(inv)
604
457
"""Print `file` to stdout."""
605
458
self.lock_read()
606
459
try:
607
tree = self.revision_tree(self.get_rev_id(revno))
460
tree = self.revision_tree(self.lookup_revision(revno))
608
461
# use inventory as it was in that revision
609
462
file_id = tree.inventory.path2id(file)
610
463
if not file_id:
611
raise BzrError("%r is not present in revision %s" % (file, revno))
464
raise BzrError("%r is not present in revision %d" % (file, revno))
612
465
tree.print_file(file_id)
613
466
finally:
614
467
self.unlock()
628
481
is the opposite of add. Removing it is consistent with most
629
482
other tools. Maybe an option.
630
483
"""
484
from bzrlib.textui import show_status
631
485
## TODO: Normalize names
632
486
## TODO: Remove nested loops; better scalability
633
487
if isinstance(files, basestring):
658
512
finally:
659
513
self.unlock()
660
514
515
661
516
# FIXME: this doesn't need to be a branch method
662
517
def set_inventory(self, new_inventory_list):
663
518
from bzrlib.inventory import Inventory, InventoryEntry
664
inv = Inventory(self.get_root_id())
519
inv = Inventory()
665
520
for path, file_id, parent, kind in new_inventory_list:
666
521
name = os.path.basename(path)
667
522
if name == "":
668
523
continue
669
# fixme, there should be a factory function inv,add_??
670
if kind == 'directory':
671
inv.add(inventory.InventoryDirectory(file_id, name, parent))
672
elif kind == 'file':
673
inv.add(inventory.InventoryFile(file_id, name, parent))
674
elif kind == 'symlink':
675
inv.add(inventory.InventoryLink(file_id, name, parent))
676
else:
677
raise BzrError("unknown kind %r" % kind)
524
inv.add(InventoryEntry(file_id, name, kind, parent))
678
525
self._write_inventory(inv)
679
526
527
680
528
def unknowns(self):
681
529
"""Return all unknown files.
682
530
696
544
return self.working_tree().unknowns()
697
545
698
546
699
def append_revision(self, *revision_ids):
700
for revision_id in revision_ids:
701
mutter("add {%s} to revision-history" % revision_id)
702
self.lock_write()
703
try:
704
rev_history = self.revision_history()
705
rev_history.extend(revision_ids)
706
self.put_controlfile('revision-history', '\n'.join(rev_history))
707
finally:
708
self.unlock()
709
710
def has_revision(self, revision_id):
711
"""True if this branch has a copy of the revision.
712
713
This does not necessarily imply the revision is merge
714
or on the mainline."""
715
return (revision_id is None
716
or revision_id in self.revision_store)
717
718
def get_revision_xml_file(self, revision_id):
719
"""Return XML file object for revision object."""
720
if not revision_id or not isinstance(revision_id, basestring):
721
raise InvalidRevisionId(revision_id)
722
723
self.lock_read()
724
try:
725
try:
726
return self.revision_store[revision_id]
727
except (IndexError, KeyError):
728
raise bzrlib.errors.NoSuchRevision(self, revision_id)
729
finally:
730
self.unlock()
731
732
#deprecated
733
get_revision_xml = get_revision_xml_file
734
735
def get_revision_xml(self, revision_id):
736
return self.get_revision_xml_file(revision_id).read()
547
def append_revision(self, revision_id):
548
from bzrlib.atomicfile import AtomicFile
549
550
mutter("add {%s} to revision-history" % revision_id)
551
rev_history = self.revision_history() + [revision_id]
552
553
f = AtomicFile(self.controlfilename('revision-history'))
554
try:
555
for rev_id in rev_history:
556
print >>f, rev_id
557
f.commit()
558
finally:
559
f.close()
737
560
738
561
739
562
def get_revision(self, revision_id):
740
563
"""Return the Revision object for a named revision"""
741
xml_file = self.get_revision_xml_file(revision_id)
564
from bzrlib.revision import Revision
565
from bzrlib.xml import unpack_xml
742
566
567
self.lock_read()
743
568
try:
744
r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
745
except SyntaxError, e:
746
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
747
[revision_id,
748
str(e)])
569
if not revision_id or not isinstance(revision_id, basestring):
570
raise ValueError('invalid revision-id: %r' % revision_id)
571
r = unpack_xml(Revision, self.revision_store[revision_id])
572
finally:
573
self.unlock()
749
574
750
575
assert r.revision_id == revision_id
751
576
return r
752
753
def get_revision_delta(self, revno):
754
"""Return the delta for one revision.
755
756
The delta is relative to its mainline predecessor, or the
757
empty tree for revision 1.
758
"""
759
assert isinstance(revno, int)
760
rh = self.revision_history()
761
if not (1 <= revno <= len(rh)):
762
raise InvalidRevisionNumber(revno)
763
764
# revno is 1-based; list is 0-based
765
766
new_tree = self.revision_tree(rh[revno-1])
767
if revno == 1:
768
old_tree = EmptyTree()
769
else:
770
old_tree = self.revision_tree(rh[revno-2])
771
772
return compare_trees(old_tree, new_tree)
577
773
578
774
579
def get_revision_sha1(self, revision_id):
775
580
"""Hash the stored value of a revision, and return it."""
779
584
# the revision, (add signatures/remove signatures) and still
780
585
# have all hash pointers stay consistent.
781
586
# But for now, just hash the contents.
782
return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
783
784
def get_ancestry(self, revision_id):
785
"""Return a list of revision-ids integrated by a revision.
786
787
This currently returns a list, but the ordering is not guaranteed:
788
treat it as a set.
789
"""
790
if revision_id is None:
791
return [None]
792
w = self.control_weaves.get_weave('inventory')
793
return [None] + map(w.idx_to_name,
794
w.inclusions([w.lookup(revision_id)]))
795
796
def get_inventory_weave(self):
797
return self.control_weaves.get_weave('inventory')
798
799
def get_inventory(self, revision_id):
800
"""Get Inventory object by hash."""
801
xml = self.get_inventory_xml(revision_id)
802
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
803
804
def get_inventory_xml(self, revision_id):
805
"""Get inventory XML as a file object."""
806
try:
807
assert isinstance(revision_id, basestring), type(revision_id)
808
iw = self.get_inventory_weave()
809
return iw.get_text(iw.lookup(revision_id))
810
except IndexError:
811
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
812
813
def get_inventory_sha1(self, revision_id):
587
return sha_file(self.revision_store[revision_id])
588
589
590
def get_inventory(self, inventory_id):
591
"""Get Inventory object by hash.
592
593
TODO: Perhaps for this and similar methods, take a revision
594
parameter which can be either an integer revno or a
595
string hash."""
596
from bzrlib.inventory import Inventory
597
from bzrlib.xml import unpack_xml
598
599
return unpack_xml(Inventory, self.inventory_store[inventory_id])
600
601
602
def get_inventory_sha1(self, inventory_id):
814
603
"""Return the sha1 hash of the inventory entry
815
604
"""
816
return self.get_revision(revision_id).inventory_sha1
605
return sha_file(self.inventory_store[inventory_id])
606
817
607
818
608
def get_revision_inventory(self, revision_id):
819
609
"""Return inventory of a past revision."""
820
# TODO: Unify this with get_inventory()
821
# bzr 0.0.6 and later imposes the constraint that the inventory_id
610
# bzr 0.0.6 imposes the constraint that the inventory_id
822
611
# must be the same as its revision, so this is trivial.
823
612
if revision_id == None:
824
return Inventory(self.get_root_id())
613
from bzrlib.inventory import Inventory
614
return Inventory()
825
615
else:
826
616
return self.get_inventory(revision_id)
827
617
618
828
619
def revision_history(self):
829
"""Return sequence of revision hashes on to this branch."""
620
"""Return sequence of revision hashes on to this branch.
621
622
>>> ScratchBranch().revision_history()
623
[]
624
"""
830
625
self.lock_read()
831
626
try:
832
627
return [l.rstrip('\r\n') for l in
834
629
finally:
835
630
self.unlock()
836
631
632
837
633
def common_ancestor(self, other, self_revno=None, other_revno=None):
838
634
"""
839
>>> from bzrlib.commit import commit
635
>>> import commit
840
636
>>> sb = ScratchBranch(files=['foo', 'foo~'])
841
637
>>> sb.common_ancestor(sb) == (None, None)
842
638
True
843
>>> commit(sb, "Committing first revision", verbose=False)
639
>>> commit.commit(sb, "Committing first revision", verbose=False)
844
640
>>> sb.common_ancestor(sb)[0]
845
641
1
846
642
>>> clone = sb.clone()
847
>>> commit(sb, "Committing second revision", verbose=False)
643
>>> commit.commit(sb, "Committing second revision", verbose=False)
848
644
>>> sb.common_ancestor(sb)[0]
849
645
2
850
646
>>> sb.common_ancestor(clone)[0]
851
647
1
852
>>> commit(clone, "Committing divergent second revision",
648
>>> commit.commit(clone, "Committing divergent second revision",
853
649
... verbose=False)
854
650
>>> sb.common_ancestor(clone)[0]
855
651
1
878
674
return r+1, my_history[r]
879
675
return None, None
880
676
677
def enum_history(self, direction):
678
"""Return (revno, revision_id) for history of branch.
679
680
direction
681
'forward' is from earliest to latest
682
'reverse' is from latest to earliest
683
"""
684
rh = self.revision_history()
685
if direction == 'forward':
686
i = 1
687
for rid in rh:
688
yield i, rid
689
i += 1
690
elif direction == 'reverse':
691
i = len(rh)
692
while i > 0:
693
yield i, rh[i-1]
694
i -= 1
695
else:
696
raise ValueError('invalid history direction', direction)
697
881
698
882
699
def revno(self):
883
700
"""Return current revision number for this branch.
888
705
return len(self.revision_history())
889
706
890
707
891
def last_revision(self):
708
def last_patch(self):
892
709
"""Return last patch hash, or None if no history.
893
710
"""
894
711
ph = self.revision_history()
898
715
return None
899
716
900
717
901
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
902
"""Return a list of new revisions that would perfectly fit.
903
718
def missing_revisions(self, other, stop_revision=None):
719
"""
904
720
If self and other have not diverged, return a list of the revisions
905
721
present in other, but missing from self.
906
722
926
742
Traceback (most recent call last):
927
743
DivergedBranches: These branches have diverged.
928
744
"""
929
# FIXME: If the branches have diverged, but the latest
930
# revision in this branch is completely merged into the other,
931
# then we should still be able to pull.
932
745
self_history = self.revision_history()
933
746
self_len = len(self_history)
934
747
other_history = other.revision_history()
940
753
941
754
if stop_revision is None:
942
755
stop_revision = other_len
943
else:
944
assert isinstance(stop_revision, int)
945
if stop_revision > other_len:
946
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
756
elif stop_revision > other_len:
757
raise NoSuchRevision(self, stop_revision)
758
947
759
return other_history[self_len:stop_revision]
948
760
761
949
762
def update_revisions(self, other, stop_revision=None):
950
"""Pull in new perfect-fit revisions."""
951
from bzrlib.fetch import greedy_fetch
952
from bzrlib.revision import get_intervening_revisions
953
if stop_revision is None:
954
stop_revision = other.last_revision()
955
greedy_fetch(to_branch=self, from_branch=other,
956
revision=stop_revision)
957
pullable_revs = self.missing_revisions(
958
other, other.revision_id_to_revno(stop_revision))
959
if pullable_revs:
960
greedy_fetch(to_branch=self,
961
from_branch=other,
962
revision=pullable_revs[-1])
963
self.append_revision(*pullable_revs)
964
965
763
"""Pull in all new revisions from other branch.
764
765
>>> from bzrlib.commit import commit
766
>>> bzrlib.trace.silent = True
767
>>> br1 = ScratchBranch(files=['foo', 'bar'])
768
>>> br1.add('foo')
769
>>> br1.add('bar')
770
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
771
>>> br2 = ScratchBranch()
772
>>> br2.update_revisions(br1)
773
Added 2 texts.
774
Added 1 inventories.
775
Added 1 revisions.
776
>>> br2.revision_history()
777
[u'REVISION-ID-1']
778
>>> br2.update_revisions(br1)
779
Added 0 texts.
780
Added 0 inventories.
781
Added 0 revisions.
782
>>> br1.text_store.total_size() == br2.text_store.total_size()
783
True
784
"""
785
from bzrlib.progress import ProgressBar
786
try:
787
set
788
except NameError:
789
from sets import Set as set
790
791
pb = ProgressBar()
792
793
pb.update('comparing histories')
794
revision_ids = self.missing_revisions(other, stop_revision)
795
796
if hasattr(other.revision_store, "prefetch"):
797
other.revision_store.prefetch(revision_ids)
798
if hasattr(other.inventory_store, "prefetch"):
799
inventory_ids = [other.get_revision(r).inventory_id
800
for r in revision_ids]
801
other.inventory_store.prefetch(inventory_ids)
802
803
revisions = []
804
needed_texts = set()
805
i = 0
806
for rev_id in revision_ids:
807
i += 1
808
pb.update('fetching revision', i, len(revision_ids))
809
rev = other.get_revision(rev_id)
810
revisions.append(rev)
811
inv = other.get_inventory(str(rev.inventory_id))
812
for key, entry in inv.iter_entries():
813
if entry.text_id is None:
814
continue
815
if entry.text_id not in self.text_store:
816
needed_texts.add(entry.text_id)
817
818
pb.clear()
819
820
count = self.text_store.copy_multi(other.text_store, needed_texts)
821
print "Added %d texts." % count
822
inventory_ids = [ f.inventory_id for f in revisions ]
823
count = self.inventory_store.copy_multi(other.inventory_store,
824
inventory_ids)
825
print "Added %d inventories." % count
826
revision_ids = [ f.revision_id for f in revisions]
827
count = self.revision_store.copy_multi(other.revision_store,
828
revision_ids)
829
for revision_id in revision_ids:
830
self.append_revision(revision_id)
831
print "Added %d revisions." % count
832
833
966
834
def commit(self, *args, **kw):
967
from bzrlib.commit import Commit
968
Commit().commit(self, *args, **kw)
969
970
def revision_id_to_revno(self, revision_id):
971
"""Given a revision id, return its revno"""
972
if revision_id is None:
973
return 0
974
history = self.revision_history()
975
try:
976
return history.index(revision_id) + 1
977
except ValueError:
978
raise bzrlib.errors.NoSuchRevision(self, revision_id)
835
from bzrlib.commit import commit
836
commit(self, *args, **kw)
837
979
838
980
def get_rev_id(self, revno, history=None):
981
"""Find the revision id of the specified revno."""
839
def lookup_revision(self, revno):
840
"""Return revision hash for revision number."""
982
841
if revno == 0:
983
842
return None
984
if history is None:
985
history = self.revision_history()
986
elif revno <= 0 or revno > len(history):
987
raise bzrlib.errors.NoSuchRevision(self, revno)
988
return history[revno - 1]
843
844
try:
845
# list is 0-based; revisions are 1-based
846
return self.revision_history()[revno-1]
847
except IndexError:
848
raise BzrError("no such revision %s" % revno)
849
989
850
990
851
def revision_tree(self, revision_id):
991
852
"""Return Tree for a revision on this branch.
992
853
993
854
`revision_id` may be None for the null revision, in which case
994
855
an `EmptyTree` is returned."""
856
from bzrlib.tree import EmptyTree, RevisionTree
995
857
# TODO: refactor this to use an existing revision object
996
858
# so we don't need to read it in twice.
997
859
if revision_id == None:
998
860
return EmptyTree()
999
861
else:
1000
862
inv = self.get_revision_inventory(revision_id)
1001
return RevisionTree(self.weave_store, inv, revision_id)
863
return RevisionTree(self.text_store, inv)
1002
864
1003
865
1004
866
def working_tree(self):
1005
867
"""Return a `Tree` for the working copy."""
1006
from bzrlib.workingtree import WorkingTree
1007
# TODO: In the future, WorkingTree should utilize Transport
1008
# RobertCollins 20051003 - I don't think it should - working trees are
1009
# much more complex to keep consistent than our careful .bzr subset.
1010
# instead, we should say that working trees are local only, and optimise
1011
# for that.
1012
return WorkingTree(self._transport.base, self.read_working_inventory())
868
from workingtree import WorkingTree
869
return WorkingTree(self.base, self.read_working_inventory())
1013
870
1014
871
1015
872
def basis_tree(self):
1017
874
1018
875
If there are no revisions yet, return an `EmptyTree`.
1019
876
"""
1020
return self.revision_tree(self.last_revision())
877
from bzrlib.tree import EmptyTree, RevisionTree
878
r = self.last_patch()
879
if r == None:
880
return EmptyTree()
881
else:
882
return RevisionTree(self.text_store, self.get_revision_inventory(r))
883
1021
884
1022
885
1023
886
def rename_one(self, from_rel, to_rel):
1055
918
1056
919
inv.rename(file_id, to_dir_id, to_tail)
1057
920
921
print "%s => %s" % (from_rel, to_rel)
922
1058
923
from_abs = self.abspath(from_rel)
1059
924
to_abs = self.abspath(to_rel)
1060
925
try:
1061
rename(from_abs, to_abs)
926
os.rename(from_abs, to_abs)
1062
927
except OSError, e:
1063
928
raise BzrError("failed to rename %r to %r: %s"
1064
929
% (from_abs, to_abs, e[1]),
1079
944
1080
945
Note that to_name is only the last component of the new name;
1081
946
this doesn't change the directory.
1082
1083
This returns a list of (from_path, to_path) pairs for each
1084
entry that is moved.
1085
947
"""
1086
result = []
1087
948
self.lock_write()
1088
949
try:
1089
950
## TODO: Option to move IDs only
1124
985
for f in from_paths:
1125
986
name_tail = splitpath(f)[-1]
1126
987
dest_path = appendpath(to_name, name_tail)
1127
result.append((f, dest_path))
988
print "%s => %s" % (f, dest_path)
1128
989
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1129
990
try:
1130
rename(self.abspath(f), self.abspath(dest_path))
991
os.rename(self.abspath(f), self.abspath(dest_path))
1131
992
except OSError, e:
1132
993
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1133
994
["rename rolled back"])
1136
997
finally:
1137
998
self.unlock()
1138
999
1139
return result
1140
1141
1000
1142
1001
def revert(self, filenames, old_tree=None, backups=True):
1143
1002
"""Restore selected files to the versions from a previous tree.
1189
1048
These are revisions that have been merged into the working
1190
1049
directory but not yet committed.
1191
1050
"""
1192
cfn = self._rel_controlfilename('pending-merges')
1193
if not self._transport.has(cfn):
1051
cfn = self.controlfilename('pending-merges')
1052
if not os.path.exists(cfn):
1194
1053
return []
1195
1054
p = []
1196
1055
for l in self.controlfile('pending-merges', 'r').readlines():
1198
1057
return p
1199
1058
1200
1059
1201
def add_pending_merge(self, *revision_ids):
1202
# TODO: Perhaps should check at this point that the
1203
# history of the revision is actually present?
1060
def add_pending_merge(self, revision_id):
1061
from bzrlib.revision import validate_revision_id
1062
1063
validate_revision_id(revision_id)
1064
1204
1065
p = self.pending_merges()
1205
updated = False
1206
for rev_id in revision_ids:
1207
if rev_id in p:
1208
continue
1209
p.append(rev_id)
1210
updated = True
1211
if updated:
1212
self.set_pending_merges(p)
1066
if revision_id in p:
1067
return
1068
p.append(revision_id)
1069
self.set_pending_merges(p)
1070
1213
1071
1214
1072
def set_pending_merges(self, rev_list):
1215
self.lock_write()
1216
try:
1217
self.put_controlfile('pending-merges', '\n'.join(rev_list))
1218
finally:
1219
self.unlock()
1220
1221
1222
def get_parent(self):
1223
"""Return the parent location of the branch.
1224
1225
This is the default location for push/pull/missing. The usual
1226
pattern is that the user can override it by specifying a
1227
location.
1228
"""
1229
import errno
1230
_locs = ['parent', 'pull', 'x-pull']
1231
for l in _locs:
1232
try:
1233
return self.controlfile(l, 'r').read().strip('\n')
1234
except IOError, e:
1235
if e.errno != errno.ENOENT:
1236
raise
1237
return None
1238
1239
1240
def set_parent(self, url):
1241
# TODO: Maybe delete old location files?
1242
1073
from bzrlib.atomicfile import AtomicFile
1243
1074
self.lock_write()
1244
1075
try:
1245
f = AtomicFile(self.controlfilename('parent'))
1076
f = AtomicFile(self.controlfilename('pending-merges'))
1246
1077
try:
1247
f.write(url + '\n')
1078
for l in rev_list:
1079
print >>f, l
1248
1080
f.commit()
1249
1081
finally:
1250
1082
f.close()
1251
1083
finally:
1252
1084
self.unlock()
1253
1085
1254
def check_revno(self, revno):
1255
"""\
1256
Check whether a revno corresponds to any revision.
1257
Zero (the NULL revision) is considered valid.
1258
"""
1259
if revno != 0:
1260
self.check_real_revno(revno)
1261
1262
def check_real_revno(self, revno):
1263
"""\
1264
Check whether a revno corresponds to a real revision.
1265
Zero (the NULL revision) is considered invalid
1266
"""
1267
if revno < 1 or revno > self.revno():
1268
raise InvalidRevisionNumber(revno)
1269
1270
1271
1272
1273
1274
class ScratchBranch(_Branch):
1086
1087
1088
class ScratchBranch(Branch):
1275
1089
"""Special test class: a branch that cleans up after itself.
1276
1090
1277
1091
>>> b = ScratchBranch()
1294
1108
if base is None:
1295
1109
base = mkdtemp()
1296
1110
init = True
1297
if isinstance(base, basestring):
1298
base = get_transport(base)
1299
_Branch.__init__(self, base, init=init)
1111
Branch.__init__(self, base, init=init)
1300
1112
for d in dirs:
1301
self._transport.mkdir(d)
1113
os.mkdir(self.abspath(d))
1302
1114
1303
1115
for f in files:
1304
self._transport.put(f, 'content of %s' % f)
1116
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1305
1117
1306
1118
1307
1119
def clone(self):
1308
1120
"""
1309
1121
>>> orig = ScratchBranch(files=["file1", "file2"])
1310
1122
>>> clone = orig.clone()
1311
>>> if os.name != 'nt':
1312
... os.path.samefile(orig.base, clone.base)
1313
... else:
1314
... orig.base == clone.base
1315
...
1123
>>> os.path.samefile(orig.base, clone.base)
1316
1124
False
1317
1125
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1318
1126
True
1323
1131
os.rmdir(base)
1324
1132
copytree(self.base, base, symlinks=True)
1325
1133
return ScratchBranch(base=base)
1326
1134
1327
1135
def __del__(self):
1328
1136
self.destroy()
1329
1137
1342
1150
for name in files:
1343
1151
os.chmod(os.path.join(root, name), 0700)
1344
1152
rmtree(self.base)
1345
self._transport = None
1153
self.base = None
1346
1154
1347
1155
1348
1156
1392
1200
1393
1201
s = hexlify(rand_bytes(8))
1394
1202
return '-'.join((name, compact_date(time()), s))
1395
1396
1397
def gen_root_id():
1398
"""Return a new tree-root file id."""
1399
return gen_file_id('TREE_ROOT')
1400
1401
Loggerhead is a web-based interface for Breezy
Version: 2.0.1