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- Committer: Robert Collins
- Date: 2005-12-24 02:20:45 UTC
- mto: (1185.50.57 bzr-jam-integration)
- mto: This revision was merged to the branch mainline in revision 1550.
- Revision ID: robertc@robertcollins.net-20051224022045-14efc8dfa0e1a4e9
Start tests for api usage.
- files added:
- INSTALL
- bzrlib/doc
- bzrlib/doc/api
- bzrlib/export
- bzrlib/store
- bzrlib/tests/blackbox
- bzrlib/transport
- bzrlib/ui
- bzrlib/util/configobj
- bzrlib/util/configobj/docs
- files removed:
- bzrlib/mdiff.py
- files renamed:
- bzr-man.py => bzr_man.py
- bzrlib/store.py => bzrlib/store/__init__.py
- bzrlib/selftest/ => bzrlib/tests/
- bzrlib/selftest/blackbox.py => bzrlib/tests/blackbox/test_too_much.py
- bzrlib/selftest/versioning.py => bzrlib/tests/blackbox/test_versioning.py
- bzrlib/selftest/testbranch.py => bzrlib/tests/test_branch.py
- bzrlib/selftest/testdiff.py => bzrlib/tests/test_diff.py
- bzrlib/selftest/testfetch.py => bzrlib/tests/test_fetch.py
- bzrlib/selftest/testhashcache.py => bzrlib/tests/test_hashcache.py
- bzrlib/selftest/testinv.py => bzrlib/tests/test_inv.py
- bzrlib/selftest/testlog.py => bzrlib/tests/test_log.py
- bzrlib/selftest/testmerge3.py => bzrlib/tests/test_merge3.py
- bzrlib/selftest/plugins.py => bzrlib/tests/test_plugins.py
- bzrlib/selftest/testrevision.py => bzrlib/tests/test_revision.py
- bzrlib/selftest/testrevisionnamespaces.py => bzrlib/tests/test_revisionnamespaces.py
- bzrlib/selftest/teststatus.py => bzrlib/tests/test_status.py
- bzrlib/selftest/teststore.py => bzrlib/tests/test_store.py
- tools/testweave.py => bzrlib/tests/test_weave.py
- bzrlib/selftest/whitebox.py => bzrlib/tests/test_whitebox.py
- bzrlib/ui.py => bzrlib/ui/__init__.py
- tools/history2weaves.py => bzrlib/upgrade.py
- bzrlib/newinventory.py => contrib/newinventory.py
- files modified:
- .bzrignore
- bzr *
- setup.py *
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 shutil
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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 bzrlib
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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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splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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import bzrlib.errors
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from bzrlib.osutils import (isdir, quotefn,
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rename, splitpath, sha_file, appendpath,
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file_kind, abspath)
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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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NoWorkingTree)
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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.xml import unpack_xml
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from bzrlib.revision import (Revision, is_ancestor, get_intervening_revisions,
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NULL_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.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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import bzrlib.xml5
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import bzrlib.ui
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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from config import TreeConfig
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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BZR_BRANCH_FORMAT_6 = "Bazaar-NG branch, format 6\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster.
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# TODO: please move the revision-string syntax stuff out of the branch
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# object; it's clutter
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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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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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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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s = []
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head = rp
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while len(head) >= len(base):
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if head == base:
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break
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head, tail = os.path.split(head)
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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(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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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 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 bzrlib.errors.NotBranchError('%s is not in a branch' % orig_f)
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f = head
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# XXX: move into bzrlib.errors; subclass BzrError
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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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# cache in memory to make this faster. In general anything can be
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# cached in memory between lock and unlock operations.
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def find_branch(*ignored, **ignored_too):
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# XXX: leave this here for about one release, then remove it
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raise NotImplementedError('find_branch() is not supported anymore, '
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'please use one of the new branch constructors')
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def needs_read_lock(unbound):
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"""Decorate unbound to take out and release a read lock."""
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def decorated(self, *args, **kwargs):
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self.lock_read()
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try:
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return unbound(self, *args, **kwargs)
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finally:
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self.unlock()
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return decorated
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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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self.lock_write()
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try:
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return unbound(self, *args, **kwargs)
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finally:
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self.unlock()
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return decorated
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######################################################################
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# branch objects
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"""Branch holding a history of revisions.
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base
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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_count
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If _lock_mode is true, a positive count of the number of times the
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lock has been taken.
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_lock
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Lock object from bzrlib.lock.
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Base directory/url of the branch.
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"""
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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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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def __init__(self, base, init=False, find_root=True):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch.
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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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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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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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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('.')):
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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):
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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):
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if self._lock_mode or self._lock:
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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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def __init__(self, *ignored, **ignored_too):
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raise NotImplementedError('The Branch class is abstract')
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@staticmethod
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def open_downlevel(base):
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"""Open a branch which may be of an old format.
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Only local branches are supported."""
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return BzrBranch(get_transport(base), relax_version_check=True)
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@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 BzrBranch(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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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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"""
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t = get_transport(url)
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while True:
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try:
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return BzrBranch(t), t.relpath(url)
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except NotBranchError:
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pass
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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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t = new_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 BzrBranch(t, init=True)
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def setup_caching(self, cache_root):
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"""Subclasses that care about caching should override this, and set
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up cached stores located under cache_root.
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"""
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self.cache_root = cache_root
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def _get_nick(self):
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cfg = self.tree_config()
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return cfg.get_option(u"nickname", default=self.base.split('/')[-1])
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def _set_nick(self, nick):
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cfg = self.tree_config()
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cfg.set_option(nick, "nickname")
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assert cfg.get_option("nickname") == nick
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nick = property(_get_nick, _set_nick)
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def push_stores(self, branch_to):
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"""Copy the content of this branches store to branch_to."""
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raise NotImplementedError('push_stores is abstract')
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def get_transaction(self):
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"""Return the current active transaction.
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If no transaction is active, this returns a passthrough object
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for which all data is immediately flushed and no caching happens.
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"""
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raise NotImplementedError('get_transaction is abstract')
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def lock_write(self):
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if self._lock_mode:
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if self._lock_mode != 'w':
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from errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_mode)
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self._lock_count += 1
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else:
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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self._lock_count = 1
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raise NotImplementedError('lock_write is abstract')
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def lock_read(self):
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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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else:
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from bzrlib.lock import ReadLock
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raise NotImplementedError('lock_read is abstract')
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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self._lock_count = 1
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def unlock(self):
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if not self._lock_mode:
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from 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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else:
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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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raise NotImplementedError('unlock is abstract')
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
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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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"""
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raise NotImplementedError('abspath is abstract')
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
273
if isinstance(file_or_path, basestring):
274
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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raise NotImplementedError('controlfilename is abstract')
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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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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"""
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
293
return file(fn, mode)
294
elif mode == 'r' or mode == 'w':
295
# open in binary mode anyhow so there's no newline translation;
296
# codecs uses line buffering by default; don't want that.
297
import codecs
298
return codecs.open(fn, mode + 'b', 'utf-8',
299
buffering=60000)
300
else:
301
raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
304
from bzrlib.inventory import Inventory
305
from bzrlib.xml import pack_xml
306
307
os.mkdir(self.controlfilename([]))
308
self.controlfile('README', 'w').write(
309
"This is a Bazaar-NG control directory.\n"
310
"Do not change any files in this directory.\n")
311
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
312
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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'branch-lock',
317
'pending-merges'):
318
self.controlfile(f, 'w').write('')
319
mutter('created control directory in ' + self.base)
320
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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
323
# simplicity.
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pack_xml(Inventory(), self.controlfile('inventory','w'))
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def _check_format(self):
327
"""Check this branch format is supported.
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The current tool only supports the current unstable format.
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331
In the future, we might need different in-memory Branch
332
classes to support downlevel branches. But not yet.
333
"""
334
# This ignores newlines so that we can open branches created
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# on Windows from Linux and so on. I think it might be better
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# to always make all internal files in unix format.
337
fmt = self.controlfile('branch-format', 'r').read()
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fmt.replace('\r\n', '')
339
if fmt != BZR_BRANCH_FORMAT:
340
raise BzrError('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
342
'or remove the .bzr directory and "bzr init" again'])
211
raise NotImplementedError('controlfile is abstract')
212
213
def put_controlfile(self, path, f, encode=True):
214
"""Write an entry as a controlfile.
215
216
:param path: The path to put the file, relative to the .bzr control
217
directory
218
:param f: A file-like or string object whose contents should be copied.
219
:param encode: If true, encode the contents as utf-8
220
"""
221
raise NotImplementedError('put_controlfile is abstract')
222
223
def put_controlfiles(self, files, encode=True):
224
"""Write several entries as controlfiles.
225
226
:param files: A list of [(path, file)] pairs, where the path is the directory
227
underneath the bzr control directory
228
:param encode: If true, encode the contents as utf-8
229
"""
230
raise NotImplementedError('put_controlfiles is abstract')
343
231
344
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def get_root_id(self):
345
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"""Return the id of this branches root"""
346
inv = self.read_working_inventory()
347
return inv.root.file_id
234
raise NotImplementedError('get_root_id is abstract')
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349
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def set_root_id(self, file_id):
350
inv = self.read_working_inventory()
351
orig_root_id = inv.root.file_id
352
del inv._byid[inv.root.file_id]
353
inv.root.file_id = file_id
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inv._byid[inv.root.file_id] = inv.root
355
for fid in inv:
356
entry = inv[fid]
357
if entry.parent_id in (None, orig_root_id):
358
entry.parent_id = inv.root.file_id
359
self._write_inventory(inv)
360
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def read_working_inventory(self):
362
"""Read the working inventory."""
363
from bzrlib.inventory import Inventory
364
from bzrlib.xml import unpack_xml
365
from time import time
366
before = time()
367
self.lock_read()
368
try:
369
# ElementTree does its own conversion from UTF-8, so open in
370
# binary.
371
inv = unpack_xml(Inventory,
372
self.controlfile('inventory', 'rb'))
373
mutter("loaded inventory of %d items in %f"
374
% (len(inv), time() - before))
375
return inv
376
finally:
377
self.unlock()
378
379
380
def _write_inventory(self, inv):
381
"""Update the working inventory.
382
383
That is to say, the inventory describing changes underway, that
384
will be committed to the next revision.
385
"""
386
from bzrlib.atomicfile import AtomicFile
387
from bzrlib.xml import pack_xml
388
389
self.lock_write()
390
try:
391
f = AtomicFile(self.controlfilename('inventory'), 'wb')
392
try:
393
pack_xml(inv, f)
394
f.commit()
395
finally:
396
f.close()
397
finally:
398
self.unlock()
399
400
mutter('wrote working inventory')
401
402
403
inventory = property(read_working_inventory, _write_inventory, None,
404
"""Inventory for the working copy.""")
405
406
407
def add(self, files, ids=None):
408
"""Make files versioned.
409
410
Note that the command line normally calls smart_add instead,
411
which can automatically recurse.
412
413
This puts the files in the Added state, so that they will be
414
recorded by the next commit.
415
416
files
417
List of paths to add, relative to the base of the tree.
418
419
ids
420
If set, use these instead of automatically generated ids.
421
Must be the same length as the list of files, but may
422
contain None for ids that are to be autogenerated.
423
424
TODO: Perhaps have an option to add the ids even if the files do
425
not (yet) exist.
426
427
TODO: Perhaps yield the ids and paths as they're added.
428
"""
429
# TODO: Re-adding a file that is removed in the working copy
430
# should probably put it back with the previous ID.
431
if isinstance(files, basestring):
432
assert(ids is None or isinstance(ids, basestring))
433
files = [files]
434
if ids is not None:
435
ids = [ids]
436
437
if ids is None:
438
ids = [None] * len(files)
439
else:
440
assert(len(ids) == len(files))
441
442
self.lock_write()
443
try:
444
inv = self.read_working_inventory()
445
for f,file_id in zip(files, ids):
446
if is_control_file(f):
447
raise BzrError("cannot add control file %s" % quotefn(f))
448
449
fp = splitpath(f)
450
451
if len(fp) == 0:
452
raise BzrError("cannot add top-level %r" % f)
453
454
fullpath = os.path.normpath(self.abspath(f))
455
456
try:
457
kind = file_kind(fullpath)
458
except OSError:
459
# maybe something better?
460
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
461
462
if kind != 'file' and kind != 'directory':
463
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
464
465
if file_id is None:
466
file_id = gen_file_id(f)
467
inv.add_path(f, kind=kind, file_id=file_id)
468
469
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
470
471
self._write_inventory(inv)
472
finally:
473
self.unlock()
474
475
476
def print_file(self, file, revno):
237
raise NotImplementedError('set_root_id is abstract')
238
239
def print_file(self, file, revision_id):
477
240
"""Print `file` to stdout."""
478
self.lock_read()
479
try:
480
tree = self.revision_tree(self.lookup_revision(revno))
481
# use inventory as it was in that revision
482
file_id = tree.inventory.path2id(file)
483
if not file_id:
484
raise BzrError("%r is not present in revision %s" % (file, revno))
485
tree.print_file(file_id)
486
finally:
487
self.unlock()
488
489
490
def remove(self, files, verbose=False):
491
"""Mark nominated files for removal from the inventory.
492
493
This does not remove their text. This does not run on
494
495
TODO: Refuse to remove modified files unless --force is given?
496
497
TODO: Do something useful with directories.
498
499
TODO: Should this remove the text or not? Tough call; not
500
removing may be useful and the user can just use use rm, and
501
is the opposite of add. Removing it is consistent with most
502
other tools. Maybe an option.
503
"""
504
## TODO: Normalize names
505
## TODO: Remove nested loops; better scalability
506
if isinstance(files, basestring):
507
files = [files]
508
509
self.lock_write()
510
511
try:
512
tree = self.working_tree()
513
inv = tree.inventory
514
515
# do this before any modifications
516
for f in files:
517
fid = inv.path2id(f)
518
if not fid:
519
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
520
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
521
if verbose:
522
# having remove it, it must be either ignored or unknown
523
if tree.is_ignored(f):
524
new_status = 'I'
525
else:
526
new_status = '?'
527
show_status(new_status, inv[fid].kind, quotefn(f))
528
del inv[fid]
529
530
self._write_inventory(inv)
531
finally:
532
self.unlock()
533
534
535
# FIXME: this doesn't need to be a branch method
536
def set_inventory(self, new_inventory_list):
537
from bzrlib.inventory import Inventory, InventoryEntry
538
inv = Inventory(self.get_root_id())
539
for path, file_id, parent, kind in new_inventory_list:
540
name = os.path.basename(path)
541
if name == "":
542
continue
543
inv.add(InventoryEntry(file_id, name, kind, parent))
544
self._write_inventory(inv)
545
546
547
def unknowns(self):
548
"""Return all unknown files.
549
550
These are files in the working directory that are not versioned or
551
control files or ignored.
552
553
>>> b = ScratchBranch(files=['foo', 'foo~'])
554
>>> list(b.unknowns())
555
['foo']
556
>>> b.add('foo')
557
>>> list(b.unknowns())
558
[]
559
>>> b.remove('foo')
560
>>> list(b.unknowns())
561
['foo']
562
"""
563
return self.working_tree().unknowns()
564
241
raise NotImplementedError('print_file is abstract')
565
242
566
243
def append_revision(self, *revision_ids):
567
from bzrlib.atomicfile import AtomicFile
568
569
for revision_id in revision_ids:
570
mutter("add {%s} to revision-history" % revision_id)
571
572
rev_history = self.revision_history()
573
rev_history.extend(revision_ids)
574
575
f = AtomicFile(self.controlfilename('revision-history'))
576
try:
577
for rev_id in rev_history:
578
print >>f, rev_id
579
f.commit()
580
finally:
581
f.close()
582
244
raise NotImplementedError('append_revision is abstract')
245
246
def set_revision_history(self, rev_history):
247
raise NotImplementedError('set_revision_history is abstract')
248
249
def has_revision(self, revision_id):
250
"""True if this branch has a copy of the revision.
251
252
This does not necessarily imply the revision is merge
253
or on the mainline."""
254
raise NotImplementedError('has_revision is abstract')
583
255
584
256
def get_revision_xml(self, revision_id):
585
"""Return XML file object for revision object."""
586
if not revision_id or not isinstance(revision_id, basestring):
587
raise InvalidRevisionId(revision_id)
588
589
self.lock_read()
590
try:
591
try:
592
return self.revision_store[revision_id]
593
except IndexError:
594
raise bzrlib.errors.NoSuchRevision(self, revision_id)
595
finally:
596
self.unlock()
597
257
raise NotImplementedError('get_revision_xml is abstract')
598
258
599
259
def get_revision(self, revision_id):
600
260
"""Return the Revision object for a named revision"""
601
xml_file = self.get_revision_xml(revision_id)
602
603
try:
604
r = unpack_xml(Revision, xml_file)
605
except SyntaxError, e:
606
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
607
[revision_id,
608
str(e)])
609
610
assert r.revision_id == revision_id
611
return r
612
261
raise NotImplementedError('get_revision is abstract')
613
262
614
263
def get_revision_delta(self, revno):
615
264
"""Return the delta for one revision.
632
281
633
282
return compare_trees(old_tree, new_tree)
634
283
635
636
637
284
def get_revision_sha1(self, revision_id):
638
285
"""Hash the stored value of a revision, and return it."""
639
# In the future, revision entries will be signed. At that
640
# point, it is probably best *not* to include the signature
641
# in the revision hash. Because that lets you re-sign
642
# the revision, (add signatures/remove signatures) and still
643
# have all hash pointers stay consistent.
644
# But for now, just hash the contents.
645
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
646
647
648
def get_inventory(self, inventory_id):
649
"""Get Inventory object by hash.
650
651
TODO: Perhaps for this and similar methods, take a revision
652
parameter which can be either an integer revno or a
653
string hash."""
654
from bzrlib.inventory import Inventory
655
from bzrlib.xml import unpack_xml
656
657
return unpack_xml(Inventory, self.get_inventory_xml(inventory_id))
658
659
660
def get_inventory_xml(self, inventory_id):
286
raise NotImplementedError('get_revision_sha1 is abstract')
287
288
def get_ancestry(self, revision_id):
289
"""Return a list of revision-ids integrated by a revision.
290
291
This currently returns a list, but the ordering is not guaranteed:
292
treat it as a set.
293
"""
294
raise NotImplementedError('get_ancestry is abstract')
295
296
def get_inventory(self, revision_id):
297
"""Get Inventory object by hash."""
298
raise NotImplementedError('get_inventory is abstract')
299
300
def get_inventory_xml(self, revision_id):
661
301
"""Get inventory XML as a file object."""
662
return self.inventory_store[inventory_id]
663
664
665
def get_inventory_sha1(self, inventory_id):
666
"""Return the sha1 hash of the inventory entry
667
"""
668
return sha_file(self.get_inventory_xml(inventory_id))
669
302
raise NotImplementedError('get_inventory_xml is abstract')
303
304
def get_inventory_sha1(self, revision_id):
305
"""Return the sha1 hash of the inventory entry."""
306
raise NotImplementedError('get_inventory_sha1 is abstract')
670
307
671
308
def get_revision_inventory(self, revision_id):
672
309
"""Return inventory of a past revision."""
673
# bzr 0.0.6 imposes the constraint that the inventory_id
674
# must be the same as its revision, so this is trivial.
675
if revision_id == None:
676
from bzrlib.inventory import Inventory
677
return Inventory(self.get_root_id())
678
else:
679
return self.get_inventory(revision_id)
680
310
raise NotImplementedError('get_revision_inventory is abstract')
681
311
682
312
def revision_history(self):
683
"""Return sequence of revision hashes on to this branch.
684
685
>>> ScratchBranch().revision_history()
686
[]
687
"""
688
self.lock_read()
689
try:
690
return [l.rstrip('\r\n') for l in
691
self.controlfile('revision-history', 'r').readlines()]
692
finally:
693
self.unlock()
694
695
696
def common_ancestor(self, other, self_revno=None, other_revno=None):
697
"""
698
>>> import commit
699
>>> sb = ScratchBranch(files=['foo', 'foo~'])
700
>>> sb.common_ancestor(sb) == (None, None)
701
True
702
>>> commit.commit(sb, "Committing first revision", verbose=False)
703
>>> sb.common_ancestor(sb)[0]
704
1
705
>>> clone = sb.clone()
706
>>> commit.commit(sb, "Committing second revision", verbose=False)
707
>>> sb.common_ancestor(sb)[0]
708
2
709
>>> sb.common_ancestor(clone)[0]
710
1
711
>>> commit.commit(clone, "Committing divergent second revision",
712
... verbose=False)
713
>>> sb.common_ancestor(clone)[0]
714
1
715
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
716
True
717
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
718
True
719
>>> clone2 = sb.clone()
720
>>> sb.common_ancestor(clone2)[0]
721
2
722
>>> sb.common_ancestor(clone2, self_revno=1)[0]
723
1
724
>>> sb.common_ancestor(clone2, other_revno=1)[0]
725
1
726
"""
727
my_history = self.revision_history()
728
other_history = other.revision_history()
729
if self_revno is None:
730
self_revno = len(my_history)
731
if other_revno is None:
732
other_revno = len(other_history)
733
indices = range(min((self_revno, other_revno)))
734
indices.reverse()
735
for r in indices:
736
if my_history[r] == other_history[r]:
737
return r+1, my_history[r]
738
return None, None
739
313
"""Return sequence of revision hashes on to this branch."""
314
raise NotImplementedError('revision_history is abstract')
740
315
741
316
def revno(self):
742
317
"""Return current revision number for this branch.
746
321
"""
747
322
return len(self.revision_history())
748
323
749
750
def last_patch(self):
751
"""Return last patch hash, or None if no history.
752
"""
324
def last_revision(self):
325
"""Return last patch hash, or None if no history."""
753
326
ph = self.revision_history()
754
327
if ph:
755
328
return ph[-1]
756
329
else:
757
330
return None
758
331
759
760
332
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
761
"""
333
"""Return a list of new revisions that would perfectly fit.
334
762
335
If self and other have not diverged, return a list of the revisions
763
336
present in other, but missing from self.
764
337
782
355
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
783
356
>>> br1.missing_revisions(br2)
784
357
Traceback (most recent call last):
785
DivergedBranches: These branches have diverged.
358
DivergedBranches: These branches have diverged. Try merge.
786
359
"""
787
360
self_history = self.revision_history()
788
361
self_len = len(self_history)
795
368
796
369
if stop_revision is None:
797
370
stop_revision = other_len
798
elif stop_revision > other_len:
799
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
800
371
else:
372
assert isinstance(stop_revision, int)
373
if stop_revision > other_len:
374
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
801
375
return other_history[self_len:stop_revision]
802
803
376
804
377
def update_revisions(self, other, stop_revision=None):
805
"""Pull in all new revisions from other branch.
806
"""
807
from bzrlib.fetch import greedy_fetch
808
809
pb = bzrlib.ui.ui_factory.progress_bar()
810
pb.update('comparing histories')
811
812
revision_ids = self.missing_revisions(other, stop_revision)
813
814
if len(revision_ids) > 0:
815
count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
816
else:
817
count = 0
818
self.append_revision(*revision_ids)
819
## note("Added %d revisions." % count)
820
pb.clear()
821
822
def install_revisions(self, other, revision_ids, pb):
823
if hasattr(other.revision_store, "prefetch"):
824
other.revision_store.prefetch(revision_ids)
825
if hasattr(other.inventory_store, "prefetch"):
826
inventory_ids = [other.get_revision(r).inventory_id
827
for r in revision_ids]
828
other.inventory_store.prefetch(inventory_ids)
829
830
if pb is None:
831
pb = bzrlib.ui.ui_factory.progress_bar()
832
833
revisions = []
834
needed_texts = set()
835
i = 0
836
837
failures = set()
838
for i, rev_id in enumerate(revision_ids):
839
pb.update('fetching revision', i+1, len(revision_ids))
840
try:
841
rev = other.get_revision(rev_id)
842
except bzrlib.errors.NoSuchRevision:
843
failures.add(rev_id)
844
continue
845
846
revisions.append(rev)
847
inv = other.get_inventory(str(rev.inventory_id))
848
for key, entry in inv.iter_entries():
849
if entry.text_id is None:
850
continue
851
if entry.text_id not in self.text_store:
852
needed_texts.add(entry.text_id)
853
854
pb.clear()
855
856
count, cp_fail = self.text_store.copy_multi(other.text_store,
857
needed_texts)
858
#print "Added %d texts." % count
859
inventory_ids = [ f.inventory_id for f in revisions ]
860
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
861
inventory_ids)
862
#print "Added %d inventories." % count
863
revision_ids = [ f.revision_id for f in revisions]
864
865
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
866
revision_ids,
867
permit_failure=True)
868
assert len(cp_fail) == 0
869
return count, failures
870
871
872
def commit(self, *args, **kw):
873
from bzrlib.commit import commit
874
commit(self, *args, **kw)
378
"""Pull in new perfect-fit revisions."""
379
raise NotImplementedError('update_revisions is abstract')
380
381
def pullable_revisions(self, other, stop_revision):
382
raise NotImplementedError('pullable_revisions is abstract')
875
383
876
877
def lookup_revision(self, revision):
878
"""Return the revision identifier for a given revision information."""
879
revno, info = self._get_revision_info(revision)
880
return info
881
882
883
384
def revision_id_to_revno(self, revision_id):
884
385
"""Given a revision id, return its revno"""
386
if revision_id is None:
387
return 0
885
388
history = self.revision_history()
886
389
try:
887
390
return history.index(revision_id) + 1
888
391
except ValueError:
889
392
raise bzrlib.errors.NoSuchRevision(self, revision_id)
890
393
891
892
def get_revision_info(self, revision):
893
"""Return (revno, revision id) for revision identifier.
894
895
revision can be an integer, in which case it is assumed to be revno (though
896
this will translate negative values into positive ones)
897
revision can also be a string, in which case it is parsed for something like
898
'date:' or 'revid:' etc.
899
"""
900
revno, rev_id = self._get_revision_info(revision)
901
if revno is None:
902
raise bzrlib.errors.NoSuchRevision(self, revision)
903
return revno, rev_id
904
905
394
def get_rev_id(self, revno, history=None):
906
395
"""Find the revision id of the specified revno."""
907
396
if revno == 0:
912
401
raise bzrlib.errors.NoSuchRevision(self, revno)
913
402
return history[revno - 1]
914
403
915
def _get_revision_info(self, revision):
916
"""Return (revno, revision id) for revision specifier.
917
918
revision can be an integer, in which case it is assumed to be revno
919
(though this will translate negative values into positive ones)
920
revision can also be a string, in which case it is parsed for something
921
like 'date:' or 'revid:' etc.
922
923
A revid is always returned. If it is None, the specifier referred to
924
the null revision. If the revid does not occur in the revision
925
history, revno will be None.
926
"""
927
928
if revision is None:
929
return 0, None
930
revno = None
931
try:# Convert to int if possible
932
revision = int(revision)
933
except ValueError:
934
pass
935
revs = self.revision_history()
936
if isinstance(revision, int):
937
if revision < 0:
938
revno = len(revs) + revision + 1
939
else:
940
revno = revision
941
rev_id = self.get_rev_id(revno, revs)
942
elif isinstance(revision, basestring):
943
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
944
if revision.startswith(prefix):
945
result = func(self, revs, revision)
946
if len(result) > 1:
947
revno, rev_id = result
948
else:
949
revno = result[0]
950
rev_id = self.get_rev_id(revno, revs)
951
break
952
else:
953
raise BzrError('No namespace registered for string: %r' %
954
revision)
955
else:
956
raise TypeError('Unhandled revision type %s' % revision)
957
958
if revno is None:
959
if rev_id is None:
960
raise bzrlib.errors.NoSuchRevision(self, revision)
961
return revno, rev_id
962
963
def _namespace_revno(self, revs, revision):
964
"""Lookup a revision by revision number"""
965
assert revision.startswith('revno:')
966
try:
967
return (int(revision[6:]),)
968
except ValueError:
969
return None
970
REVISION_NAMESPACES['revno:'] = _namespace_revno
971
972
def _namespace_revid(self, revs, revision):
973
assert revision.startswith('revid:')
974
rev_id = revision[len('revid:'):]
975
try:
976
return revs.index(rev_id) + 1, rev_id
977
except ValueError:
978
return None, rev_id
979
REVISION_NAMESPACES['revid:'] = _namespace_revid
980
981
def _namespace_last(self, revs, revision):
982
assert revision.startswith('last:')
983
try:
984
offset = int(revision[5:])
985
except ValueError:
986
return (None,)
987
else:
988
if offset <= 0:
989
raise BzrError('You must supply a positive value for --revision last:XXX')
990
return (len(revs) - offset + 1,)
991
REVISION_NAMESPACES['last:'] = _namespace_last
992
993
def _namespace_tag(self, revs, revision):
994
assert revision.startswith('tag:')
995
raise BzrError('tag: namespace registered, but not implemented.')
996
REVISION_NAMESPACES['tag:'] = _namespace_tag
997
998
def _namespace_date(self, revs, revision):
999
assert revision.startswith('date:')
1000
import datetime
1001
# Spec for date revisions:
1002
# date:value
1003
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1004
# it can also start with a '+/-/='. '+' says match the first
1005
# entry after the given date. '-' is match the first entry before the date
1006
# '=' is match the first entry after, but still on the given date.
1007
#
1008
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1009
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1010
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1011
# May 13th, 2005 at 0:00
1012
#
1013
# So the proper way of saying 'give me all entries for today' is:
1014
# -r {date:+today}:{date:-tomorrow}
1015
# The default is '=' when not supplied
1016
val = revision[5:]
1017
match_style = '='
1018
if val[:1] in ('+', '-', '='):
1019
match_style = val[:1]
1020
val = val[1:]
1021
1022
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1023
if val.lower() == 'yesterday':
1024
dt = today - datetime.timedelta(days=1)
1025
elif val.lower() == 'today':
1026
dt = today
1027
elif val.lower() == 'tomorrow':
1028
dt = today + datetime.timedelta(days=1)
1029
else:
1030
import re
1031
# This should be done outside the function to avoid recompiling it.
1032
_date_re = re.compile(
1033
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1034
r'(,|T)?\s*'
1035
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1036
)
1037
m = _date_re.match(val)
1038
if not m or (not m.group('date') and not m.group('time')):
1039
raise BzrError('Invalid revision date %r' % revision)
1040
1041
if m.group('date'):
1042
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1043
else:
1044
year, month, day = today.year, today.month, today.day
1045
if m.group('time'):
1046
hour = int(m.group('hour'))
1047
minute = int(m.group('minute'))
1048
if m.group('second'):
1049
second = int(m.group('second'))
1050
else:
1051
second = 0
1052
else:
1053
hour, minute, second = 0,0,0
1054
1055
dt = datetime.datetime(year=year, month=month, day=day,
1056
hour=hour, minute=minute, second=second)
1057
first = dt
1058
last = None
1059
reversed = False
1060
if match_style == '-':
1061
reversed = True
1062
elif match_style == '=':
1063
last = dt + datetime.timedelta(days=1)
1064
1065
if reversed:
1066
for i in range(len(revs)-1, -1, -1):
1067
r = self.get_revision(revs[i])
1068
# TODO: Handle timezone.
1069
dt = datetime.datetime.fromtimestamp(r.timestamp)
1070
if first >= dt and (last is None or dt >= last):
1071
return (i+1,)
1072
else:
1073
for i in range(len(revs)):
1074
r = self.get_revision(revs[i])
1075
# TODO: Handle timezone.
1076
dt = datetime.datetime.fromtimestamp(r.timestamp)
1077
if first <= dt and (last is None or dt <= last):
1078
return (i+1,)
1079
REVISION_NAMESPACES['date:'] = _namespace_date
1080
1081
404
def revision_tree(self, revision_id):
1082
405
"""Return Tree for a revision on this branch.
1083
406
1084
407
`revision_id` may be None for the null revision, in which case
1085
408
an `EmptyTree` is returned."""
1086
# TODO: refactor this to use an existing revision object
1087
# so we don't need to read it in twice.
1088
if revision_id == None:
1089
return EmptyTree()
1090
else:
1091
inv = self.get_revision_inventory(revision_id)
1092
return RevisionTree(self.text_store, inv)
1093
409
raise NotImplementedError('revision_tree is abstract')
1094
410
1095
411
def working_tree(self):
1096
"""Return a `Tree` for the working copy."""
1097
from workingtree import WorkingTree
1098
return WorkingTree(self.base, self.read_working_inventory())
412
"""Return a `Tree` for the working copy if this is a local branch."""
413
raise NotImplementedError('working_tree is abstract')
1099
414
415
def pull(self, source, overwrite=False):
416
raise NotImplementedError('pull is abstract')
1100
417
1101
418
def basis_tree(self):
1102
419
"""Return `Tree` object for last revision.
1103
420
1104
421
If there are no revisions yet, return an `EmptyTree`.
1105
422
"""
1106
r = self.last_patch()
1107
if r == None:
1108
return EmptyTree()
1109
else:
1110
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1111
1112
423
return self.revision_tree(self.last_revision())
1113
424
1114
425
def rename_one(self, from_rel, to_rel):
1115
426
"""Rename one file.
1116
427
1117
428
This can change the directory or the filename or both.
1118
429
"""
1119
self.lock_write()
1120
try:
1121
tree = self.working_tree()
1122
inv = tree.inventory
1123
if not tree.has_filename(from_rel):
1124
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1125
if tree.has_filename(to_rel):
1126
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1127
1128
file_id = inv.path2id(from_rel)
1129
if file_id == None:
1130
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1131
1132
if inv.path2id(to_rel):
1133
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1134
1135
to_dir, to_tail = os.path.split(to_rel)
1136
to_dir_id = inv.path2id(to_dir)
1137
if to_dir_id == None and to_dir != '':
1138
raise BzrError("can't determine destination directory id for %r" % to_dir)
1139
1140
mutter("rename_one:")
1141
mutter(" file_id {%s}" % file_id)
1142
mutter(" from_rel %r" % from_rel)
1143
mutter(" to_rel %r" % to_rel)
1144
mutter(" to_dir %r" % to_dir)
1145
mutter(" to_dir_id {%s}" % to_dir_id)
1146
1147
inv.rename(file_id, to_dir_id, to_tail)
1148
1149
from_abs = self.abspath(from_rel)
1150
to_abs = self.abspath(to_rel)
1151
try:
1152
os.rename(from_abs, to_abs)
1153
except OSError, e:
1154
raise BzrError("failed to rename %r to %r: %s"
1155
% (from_abs, to_abs, e[1]),
1156
["rename rolled back"])
1157
1158
self._write_inventory(inv)
1159
finally:
1160
self.unlock()
1161
430
raise NotImplementedError('rename_one is abstract')
1162
431
1163
432
def move(self, from_paths, to_name):
1164
433
"""Rename files.
1174
443
This returns a list of (from_path, to_path) pairs for each
1175
444
entry that is moved.
1176
445
"""
1177
result = []
1178
self.lock_write()
1179
try:
1180
## TODO: Option to move IDs only
1181
assert not isinstance(from_paths, basestring)
1182
tree = self.working_tree()
1183
inv = tree.inventory
1184
to_abs = self.abspath(to_name)
1185
if not isdir(to_abs):
1186
raise BzrError("destination %r is not a directory" % to_abs)
1187
if not tree.has_filename(to_name):
1188
raise BzrError("destination %r not in working directory" % to_abs)
1189
to_dir_id = inv.path2id(to_name)
1190
if to_dir_id == None and to_name != '':
1191
raise BzrError("destination %r is not a versioned directory" % to_name)
1192
to_dir_ie = inv[to_dir_id]
1193
if to_dir_ie.kind not in ('directory', 'root_directory'):
1194
raise BzrError("destination %r is not a directory" % to_abs)
1195
1196
to_idpath = inv.get_idpath(to_dir_id)
1197
1198
for f in from_paths:
1199
if not tree.has_filename(f):
1200
raise BzrError("%r does not exist in working tree" % f)
1201
f_id = inv.path2id(f)
1202
if f_id == None:
1203
raise BzrError("%r is not versioned" % f)
1204
name_tail = splitpath(f)[-1]
1205
dest_path = appendpath(to_name, name_tail)
1206
if tree.has_filename(dest_path):
1207
raise BzrError("destination %r already exists" % dest_path)
1208
if f_id in to_idpath:
1209
raise BzrError("can't move %r to a subdirectory of itself" % f)
1210
1211
# OK, so there's a race here, it's possible that someone will
1212
# create a file in this interval and then the rename might be
1213
# left half-done. But we should have caught most problems.
1214
1215
for f in from_paths:
1216
name_tail = splitpath(f)[-1]
1217
dest_path = appendpath(to_name, name_tail)
1218
result.append((f, dest_path))
1219
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1220
try:
1221
os.rename(self.abspath(f), self.abspath(dest_path))
1222
except OSError, e:
1223
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1224
["rename rolled back"])
1225
1226
self._write_inventory(inv)
1227
finally:
1228
self.unlock()
1229
1230
return result
1231
1232
1233
def revert(self, filenames, old_tree=None, backups=True):
1234
"""Restore selected files to the versions from a previous tree.
1235
1236
backups
1237
If true (default) backups are made of files before
1238
they're renamed.
1239
"""
1240
from bzrlib.errors import NotVersionedError, BzrError
1241
from bzrlib.atomicfile import AtomicFile
1242
from bzrlib.osutils import backup_file
1243
1244
inv = self.read_working_inventory()
1245
if old_tree is None:
1246
old_tree = self.basis_tree()
1247
old_inv = old_tree.inventory
1248
1249
nids = []
1250
for fn in filenames:
1251
file_id = inv.path2id(fn)
1252
if not file_id:
1253
raise NotVersionedError("not a versioned file", fn)
1254
if not old_inv.has_id(file_id):
1255
raise BzrError("file not present in old tree", fn, file_id)
1256
nids.append((fn, file_id))
1257
1258
# TODO: Rename back if it was previously at a different location
1259
1260
# TODO: If given a directory, restore the entire contents from
1261
# the previous version.
1262
1263
# TODO: Make a backup to a temporary file.
1264
1265
# TODO: If the file previously didn't exist, delete it?
1266
for fn, file_id in nids:
1267
backup_file(fn)
1268
1269
f = AtomicFile(fn, 'wb')
1270
try:
1271
f.write(old_tree.get_file(file_id).read())
1272
f.commit()
1273
finally:
1274
f.close()
1275
1276
1277
def pending_merges(self):
1278
"""Return a list of pending merges.
1279
1280
These are revisions that have been merged into the working
1281
directory but not yet committed.
1282
"""
1283
cfn = self.controlfilename('pending-merges')
1284
if not os.path.exists(cfn):
1285
return []
1286
p = []
1287
for l in self.controlfile('pending-merges', 'r').readlines():
1288
p.append(l.rstrip('\n'))
1289
return p
1290
1291
1292
def add_pending_merge(self, revision_id):
1293
from bzrlib.revision import validate_revision_id
1294
1295
validate_revision_id(revision_id)
1296
1297
p = self.pending_merges()
1298
if revision_id in p:
1299
return
1300
p.append(revision_id)
1301
self.set_pending_merges(p)
1302
1303
1304
def set_pending_merges(self, rev_list):
1305
from bzrlib.atomicfile import AtomicFile
1306
self.lock_write()
1307
try:
1308
f = AtomicFile(self.controlfilename('pending-merges'))
1309
try:
1310
for l in rev_list:
1311
print >>f, l
1312
f.commit()
1313
finally:
1314
f.close()
1315
finally:
1316
self.unlock()
1317
446
raise NotImplementedError('move is abstract')
1318
447
1319
448
def get_parent(self):
1320
449
"""Return the parent location of the branch.
1323
452
pattern is that the user can override it by specifying a
1324
453
location.
1325
454
"""
455
raise NotImplementedError('get_parent is abstract')
456
457
def get_push_location(self):
458
"""Return the None or the location to push this branch to."""
459
raise NotImplementedError('get_push_location is abstract')
460
461
def set_push_location(self, location):
462
"""Set a new push location for this branch."""
463
raise NotImplementedError('set_push_location is abstract')
464
465
def set_parent(self, url):
466
raise NotImplementedError('set_parent is abstract')
467
468
def check_revno(self, revno):
469
"""\
470
Check whether a revno corresponds to any revision.
471
Zero (the NULL revision) is considered valid.
472
"""
473
if revno != 0:
474
self.check_real_revno(revno)
475
476
def check_real_revno(self, revno):
477
"""\
478
Check whether a revno corresponds to a real revision.
479
Zero (the NULL revision) is considered invalid
480
"""
481
if revno < 1 or revno > self.revno():
482
raise InvalidRevisionNumber(revno)
483
484
def sign_revision(self, revision_id, gpg_strategy):
485
raise NotImplementedError('sign_revision is abstract')
486
487
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
488
raise NotImplementedError('store_revision_signature is abstract')
489
490
class BzrBranch(Branch):
491
"""A branch stored in the actual filesystem.
492
493
Note that it's "local" in the context of the filesystem; it doesn't
494
really matter if it's on an nfs/smb/afs/coda/... share, as long as
495
it's writable, and can be accessed via the normal filesystem API.
496
497
_lock_mode
498
None, or 'r' or 'w'
499
500
_lock_count
501
If _lock_mode is true, a positive count of the number of times the
502
lock has been taken.
503
504
_lock
505
Lock object from bzrlib.lock.
506
"""
507
# We actually expect this class to be somewhat short-lived; part of its
508
# purpose is to try to isolate what bits of the branch logic are tied to
509
# filesystem access, so that in a later step, we can extricate them to
510
# a separarte ("storage") class.
511
_lock_mode = None
512
_lock_count = None
513
_lock = None
514
_inventory_weave = None
515
516
# Map some sort of prefix into a namespace
517
# stuff like "revno:10", "revid:", etc.
518
# This should match a prefix with a function which accepts
519
REVISION_NAMESPACES = {}
520
521
def push_stores(self, branch_to):
522
"""See Branch.push_stores."""
523
if (self._branch_format != branch_to._branch_format
524
or self._branch_format != 4):
525
from bzrlib.fetch import greedy_fetch
526
mutter("falling back to fetch logic to push between %s(%s) and %s(%s)",
527
self, self._branch_format, branch_to, branch_to._branch_format)
528
greedy_fetch(to_branch=branch_to, from_branch=self,
529
revision=self.last_revision())
530
return
531
532
store_pairs = ((self.text_store, branch_to.text_store),
533
(self.inventory_store, branch_to.inventory_store),
534
(self.revision_store, branch_to.revision_store))
535
try:
536
for from_store, to_store in store_pairs:
537
copy_all(from_store, to_store)
538
except UnlistableStore:
539
raise UnlistableBranch(from_store)
540
541
def __init__(self, transport, init=False,
542
relax_version_check=False):
543
"""Create new branch object at a particular location.
544
545
transport -- A Transport object, defining how to access files.
546
547
init -- If True, create new control files in a previously
548
unversioned directory. If False, the branch must already
549
be versioned.
550
551
relax_version_check -- If true, the usual check for the branch
552
version is not applied. This is intended only for
553
upgrade/recovery type use; it's not guaranteed that
554
all operations will work on old format branches.
555
556
In the test suite, creation of new trees is tested using the
557
`ScratchBranch` class.
558
"""
559
assert isinstance(transport, Transport), \
560
"%r is not a Transport" % transport
561
self._transport = transport
562
if init:
563
self._make_control()
564
self._check_format(relax_version_check)
565
566
def get_store(name, compressed=True, prefixed=False):
567
# FIXME: This approach of assuming stores are all entirely compressed
568
# or entirely uncompressed is tidy, but breaks upgrade from
569
# some existing branches where there's a mixture; we probably
570
# still want the option to look for both.
571
relpath = self._rel_controlfilename(unicode(name))
572
store = TextStore(self._transport.clone(relpath),
573
prefixed=prefixed,
574
compressed=compressed)
575
#if self._transport.should_cache():
576
# cache_path = os.path.join(self.cache_root, name)
577
# os.mkdir(cache_path)
578
# store = bzrlib.store.CachedStore(store, cache_path)
579
return store
580
581
def get_weave(name, prefixed=False):
582
relpath = self._rel_controlfilename(unicode(name))
583
ws = WeaveStore(self._transport.clone(relpath), prefixed=prefixed)
584
if self._transport.should_cache():
585
ws.enable_cache = True
586
return ws
587
588
if self._branch_format == 4:
589
self.inventory_store = get_store('inventory-store')
590
self.text_store = get_store('text-store')
591
self.revision_store = get_store('revision-store')
592
elif self._branch_format == 5:
593
self.control_weaves = get_weave(u'')
594
self.weave_store = get_weave(u'weaves')
595
self.revision_store = get_store(u'revision-store', compressed=False)
596
elif self._branch_format == 6:
597
self.control_weaves = get_weave(u'')
598
self.weave_store = get_weave(u'weaves', prefixed=True)
599
self.revision_store = get_store(u'revision-store', compressed=False,
600
prefixed=True)
601
self.revision_store.register_suffix('sig')
602
self._transaction = None
603
604
def __str__(self):
605
return '%s(%r)' % (self.__class__.__name__, self._transport.base)
606
607
__repr__ = __str__
608
609
def __del__(self):
610
if self._lock_mode or self._lock:
611
# XXX: This should show something every time, and be suitable for
612
# headless operation and embedding
613
warn("branch %r was not explicitly unlocked" % self)
614
self._lock.unlock()
615
616
# TODO: It might be best to do this somewhere else,
617
# but it is nice for a Branch object to automatically
618
# cache it's information.
619
# Alternatively, we could have the Transport objects cache requests
620
# See the earlier discussion about how major objects (like Branch)
621
# should never expect their __del__ function to run.
622
if hasattr(self, 'cache_root') and self.cache_root is not None:
623
try:
624
shutil.rmtree(self.cache_root)
625
except:
626
pass
627
self.cache_root = None
628
629
def _get_base(self):
630
if self._transport:
631
return self._transport.base
632
return None
633
634
base = property(_get_base, doc="The URL for the root of this branch.")
635
636
def _finish_transaction(self):
637
"""Exit the current transaction."""
638
if self._transaction is None:
639
raise errors.LockError('Branch %s is not in a transaction' %
640
self)
641
transaction = self._transaction
642
self._transaction = None
643
transaction.finish()
644
645
def get_transaction(self):
646
"""See Branch.get_transaction."""
647
if self._transaction is None:
648
return transactions.PassThroughTransaction()
649
else:
650
return self._transaction
651
652
def _set_transaction(self, new_transaction):
653
"""Set a new active transaction."""
654
if self._transaction is not None:
655
raise errors.LockError('Branch %s is in a transaction already.' %
656
self)
657
self._transaction = new_transaction
658
659
def lock_write(self):
660
#mutter("lock write: %s (%s)", self, self._lock_count)
661
# TODO: Upgrade locking to support using a Transport,
662
# and potentially a remote locking protocol
663
if self._lock_mode:
664
if self._lock_mode != 'w':
665
raise LockError("can't upgrade to a write lock from %r" %
666
self._lock_mode)
667
self._lock_count += 1
668
else:
669
self._lock = self._transport.lock_write(
670
self._rel_controlfilename('branch-lock'))
671
self._lock_mode = 'w'
672
self._lock_count = 1
673
self._set_transaction(transactions.PassThroughTransaction())
674
675
def lock_read(self):
676
#mutter("lock read: %s (%s)", self, self._lock_count)
677
if self._lock_mode:
678
assert self._lock_mode in ('r', 'w'), \
679
"invalid lock mode %r" % self._lock_mode
680
self._lock_count += 1
681
else:
682
self._lock = self._transport.lock_read(
683
self._rel_controlfilename('branch-lock'))
684
self._lock_mode = 'r'
685
self._lock_count = 1
686
self._set_transaction(transactions.ReadOnlyTransaction())
687
# 5K may be excessive, but hey, its a knob.
688
self.get_transaction().set_cache_size(5000)
689
690
def unlock(self):
691
#mutter("unlock: %s (%s)", self, self._lock_count)
692
if not self._lock_mode:
693
raise LockError('branch %r is not locked' % (self))
694
695
if self._lock_count > 1:
696
self._lock_count -= 1
697
else:
698
self._finish_transaction()
699
self._lock.unlock()
700
self._lock = None
701
self._lock_mode = self._lock_count = None
702
703
def abspath(self, name):
704
"""See Branch.abspath."""
705
return self._transport.abspath(name)
706
707
def _rel_controlfilename(self, file_or_path):
708
if not isinstance(file_or_path, basestring):
709
file_or_path = u'/'.join(file_or_path)
710
if file_or_path == '':
711
return bzrlib.BZRDIR
712
return bzrlib.transport.urlescape(bzrlib.BZRDIR + u'/' + file_or_path)
713
714
def controlfilename(self, file_or_path):
715
"""See Branch.controlfilename."""
716
return self._transport.abspath(self._rel_controlfilename(file_or_path))
717
718
def controlfile(self, file_or_path, mode='r'):
719
"""See Branch.controlfile."""
720
import codecs
721
722
relpath = self._rel_controlfilename(file_or_path)
723
#TODO: codecs.open() buffers linewise, so it was overloaded with
724
# a much larger buffer, do we need to do the same for getreader/getwriter?
725
if mode == 'rb':
726
return self._transport.get(relpath)
727
elif mode == 'wb':
728
raise BzrError("Branch.controlfile(mode='wb') is not supported, use put_controlfiles")
729
elif mode == 'r':
730
# XXX: Do we really want errors='replace'? Perhaps it should be
731
# an error, or at least reported, if there's incorrectly-encoded
732
# data inside a file.
733
# <https://launchpad.net/products/bzr/+bug/3823>
734
return codecs.getreader('utf-8')(self._transport.get(relpath), errors='replace')
735
elif mode == 'w':
736
raise BzrError("Branch.controlfile(mode='w') is not supported, use put_controlfiles")
737
else:
738
raise BzrError("invalid controlfile mode %r" % mode)
739
740
def put_controlfile(self, path, f, encode=True):
741
"""See Branch.put_controlfile."""
742
self.put_controlfiles([(path, f)], encode=encode)
743
744
def put_controlfiles(self, files, encode=True):
745
"""See Branch.put_controlfiles."""
746
import codecs
747
ctrl_files = []
748
for path, f in files:
749
if encode:
750
if isinstance(f, basestring):
751
f = f.encode('utf-8', 'replace')
752
else:
753
f = codecs.getwriter('utf-8')(f, errors='replace')
754
path = self._rel_controlfilename(path)
755
ctrl_files.append((path, f))
756
self._transport.put_multi(ctrl_files)
757
758
def _make_control(self):
759
from bzrlib.inventory import Inventory
760
from bzrlib.weavefile import write_weave_v5
761
from bzrlib.weave import Weave
762
763
# Create an empty inventory
764
sio = StringIO()
765
# if we want per-tree root ids then this is the place to set
766
# them; they're not needed for now and so ommitted for
767
# simplicity.
768
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
769
empty_inv = sio.getvalue()
770
sio = StringIO()
771
bzrlib.weavefile.write_weave_v5(Weave(), sio)
772
empty_weave = sio.getvalue()
773
774
dirs = [[], 'revision-store', 'weaves']
775
files = [('README',
776
"This is a Bazaar-NG control directory.\n"
777
"Do not change any files in this directory.\n"),
778
('branch-format', BZR_BRANCH_FORMAT_6),
779
('revision-history', ''),
780
('branch-name', ''),
781
('branch-lock', ''),
782
('pending-merges', ''),
783
('inventory', empty_inv),
784
('inventory.weave', empty_weave),
785
('ancestry.weave', empty_weave)
786
]
787
cfn = self._rel_controlfilename
788
self._transport.mkdir_multi([cfn(d) for d in dirs])
789
self.put_controlfiles(files)
790
mutter('created control directory in ' + self._transport.base)
791
792
def _check_format(self, relax_version_check):
793
"""Check this branch format is supported.
794
795
The format level is stored, as an integer, in
796
self._branch_format for code that needs to check it later.
797
798
In the future, we might need different in-memory Branch
799
classes to support downlevel branches. But not yet.
800
"""
801
try:
802
fmt = self.controlfile('branch-format', 'r').read()
803
except NoSuchFile:
804
raise NotBranchError(path=self.base)
805
mutter("got branch format %r", fmt)
806
if fmt == BZR_BRANCH_FORMAT_6:
807
self._branch_format = 6
808
elif fmt == BZR_BRANCH_FORMAT_5:
809
self._branch_format = 5
810
elif fmt == BZR_BRANCH_FORMAT_4:
811
self._branch_format = 4
812
813
if (not relax_version_check
814
and self._branch_format not in (5, 6)):
815
raise errors.UnsupportedFormatError(
816
'sorry, branch format %r not supported' % fmt,
817
['use a different bzr version',
818
'or remove the .bzr directory'
819
' and "bzr init" again'])
820
821
@needs_read_lock
822
def get_root_id(self):
823
"""See Branch.get_root_id."""
824
inv = self.get_inventory(self.last_revision())
825
return inv.root.file_id
826
827
@needs_read_lock
828
def print_file(self, file, revision_id):
829
"""See Branch.print_file."""
830
tree = self.revision_tree(revision_id)
831
# use inventory as it was in that revision
832
file_id = tree.inventory.path2id(file)
833
if not file_id:
834
try:
835
revno = self.revision_id_to_revno(revision_id)
836
except errors.NoSuchRevision:
837
# TODO: This should not be BzrError,
838
# but NoSuchFile doesn't fit either
839
raise BzrError('%r is not present in revision %s'
840
% (file, revision_id))
841
else:
842
raise BzrError('%r is not present in revision %s'
843
% (file, revno))
844
tree.print_file(file_id)
845
846
@needs_write_lock
847
def append_revision(self, *revision_ids):
848
"""See Branch.append_revision."""
849
for revision_id in revision_ids:
850
mutter("add {%s} to revision-history" % revision_id)
851
rev_history = self.revision_history()
852
rev_history.extend(revision_ids)
853
self.set_revision_history(rev_history)
854
855
@needs_write_lock
856
def set_revision_history(self, rev_history):
857
"""See Branch.set_revision_history."""
858
old_revision = self.last_revision()
859
new_revision = rev_history[-1]
860
self.put_controlfile('revision-history', '\n'.join(rev_history))
861
try:
862
self.working_tree().set_last_revision(new_revision, old_revision)
863
except NoWorkingTree:
864
mutter('Unable to set_last_revision without a working tree.')
865
866
def has_revision(self, revision_id):
867
"""See Branch.has_revision."""
868
return (revision_id is None
869
or self.revision_store.has_id(revision_id))
870
871
@needs_read_lock
872
def _get_revision_xml_file(self, revision_id):
873
if not revision_id or not isinstance(revision_id, basestring):
874
raise InvalidRevisionId(revision_id=revision_id, branch=self)
875
try:
876
return self.revision_store.get(revision_id)
877
except (IndexError, KeyError):
878
raise bzrlib.errors.NoSuchRevision(self, revision_id)
879
880
def get_revision_xml(self, revision_id):
881
"""See Branch.get_revision_xml."""
882
return self._get_revision_xml_file(revision_id).read()
883
884
def get_revision(self, revision_id):
885
"""See Branch.get_revision."""
886
xml_file = self._get_revision_xml_file(revision_id)
887
888
try:
889
r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
890
except SyntaxError, e:
891
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
892
[revision_id,
893
str(e)])
894
895
assert r.revision_id == revision_id
896
return r
897
898
def get_revision_sha1(self, revision_id):
899
"""See Branch.get_revision_sha1."""
900
# In the future, revision entries will be signed. At that
901
# point, it is probably best *not* to include the signature
902
# in the revision hash. Because that lets you re-sign
903
# the revision, (add signatures/remove signatures) and still
904
# have all hash pointers stay consistent.
905
# But for now, just hash the contents.
906
return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
907
908
def get_ancestry(self, revision_id):
909
"""See Branch.get_ancestry."""
910
if revision_id is None:
911
return [None]
912
w = self._get_inventory_weave()
913
return [None] + map(w.idx_to_name,
914
w.inclusions([w.lookup(revision_id)]))
915
916
def _get_inventory_weave(self):
917
return self.control_weaves.get_weave('inventory',
918
self.get_transaction())
919
920
def get_inventory(self, revision_id):
921
"""See Branch.get_inventory."""
922
xml = self.get_inventory_xml(revision_id)
923
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
924
925
def get_inventory_xml(self, revision_id):
926
"""See Branch.get_inventory_xml."""
927
try:
928
assert isinstance(revision_id, basestring), type(revision_id)
929
iw = self._get_inventory_weave()
930
return iw.get_text(iw.lookup(revision_id))
931
except IndexError:
932
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
933
934
def get_inventory_sha1(self, revision_id):
935
"""See Branch.get_inventory_sha1."""
936
return self.get_revision(revision_id).inventory_sha1
937
938
def get_revision_inventory(self, revision_id):
939
"""See Branch.get_revision_inventory."""
940
# TODO: Unify this with get_inventory()
941
# bzr 0.0.6 and later imposes the constraint that the inventory_id
942
# must be the same as its revision, so this is trivial.
943
if revision_id == None:
944
# This does not make sense: if there is no revision,
945
# then it is the current tree inventory surely ?!
946
# and thus get_root_id() is something that looks at the last
947
# commit on the branch, and the get_root_id is an inventory check.
948
raise NotImplementedError
949
# return Inventory(self.get_root_id())
950
else:
951
return self.get_inventory(revision_id)
952
953
@needs_read_lock
954
def revision_history(self):
955
"""See Branch.revision_history."""
956
transaction = self.get_transaction()
957
history = transaction.map.find_revision_history()
958
if history is not None:
959
mutter("cache hit for revision-history in %s", self)
960
return list(history)
961
history = [l.rstrip('\r\n') for l in
962
self.controlfile('revision-history', 'r').readlines()]
963
transaction.map.add_revision_history(history)
964
# this call is disabled because revision_history is
965
# not really an object yet, and the transaction is for objects.
966
# transaction.register_clean(history, precious=True)
967
return list(history)
968
969
def update_revisions(self, other, stop_revision=None):
970
"""See Branch.update_revisions."""
971
from bzrlib.fetch import greedy_fetch
972
if stop_revision is None:
973
stop_revision = other.last_revision()
974
### Should this be checking is_ancestor instead of revision_history?
975
if (stop_revision is not None and
976
stop_revision in self.revision_history()):
977
return
978
greedy_fetch(to_branch=self, from_branch=other,
979
revision=stop_revision)
980
pullable_revs = self.pullable_revisions(other, stop_revision)
981
if len(pullable_revs) > 0:
982
self.append_revision(*pullable_revs)
983
984
def pullable_revisions(self, other, stop_revision):
985
"""See Branch.pullable_revisions."""
986
other_revno = other.revision_id_to_revno(stop_revision)
987
try:
988
return self.missing_revisions(other, other_revno)
989
except DivergedBranches, e:
990
try:
991
pullable_revs = get_intervening_revisions(self.last_revision(),
992
stop_revision, self)
993
assert self.last_revision() not in pullable_revs
994
return pullable_revs
995
except bzrlib.errors.NotAncestor:
996
if is_ancestor(self.last_revision(), stop_revision, self):
997
return []
998
else:
999
raise e
1000
1001
def revision_tree(self, revision_id):
1002
"""See Branch.revision_tree."""
1003
# TODO: refactor this to use an existing revision object
1004
# so we don't need to read it in twice.
1005
if revision_id == None or revision_id == NULL_REVISION:
1006
return EmptyTree()
1007
else:
1008
inv = self.get_revision_inventory(revision_id)
1009
return RevisionTree(self.weave_store, inv, revision_id)
1010
1011
def basis_tree(self):
1012
"""See Branch.basis_tree."""
1013
try:
1014
revision_id = self.revision_history()[-1]
1015
xml = self.working_tree().read_basis_inventory(revision_id)
1016
inv = bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
1017
return RevisionTree(self.weave_store, inv, revision_id)
1018
except (IndexError, NoSuchFile, NoWorkingTree), e:
1019
return self.revision_tree(self.last_revision())
1020
1021
def working_tree(self):
1022
"""See Branch.working_tree."""
1023
from bzrlib.workingtree import WorkingTree
1024
if self._transport.base.find('://') != -1:
1025
raise NoWorkingTree(self.base)
1026
return WorkingTree(self.base, branch=self)
1027
1028
@needs_write_lock
1029
def pull(self, source, overwrite=False):
1030
"""See Branch.pull."""
1031
source.lock_read()
1032
try:
1033
old_count = len(self.revision_history())
1034
try:
1035
self.update_revisions(source)
1036
except DivergedBranches:
1037
if not overwrite:
1038
raise
1039
if overwrite:
1040
self.set_revision_history(source.revision_history())
1041
new_count = len(self.revision_history())
1042
return new_count - old_count
1043
finally:
1044
source.unlock()
1045
1046
def get_parent(self):
1047
"""See Branch.get_parent."""
1326
1048
import errno
1327
1049
_locs = ['parent', 'pull', 'x-pull']
1328
1050
for l in _locs:
1329
1051
try:
1330
1052
return self.controlfile(l, 'r').read().strip('\n')
1331
except IOError, e:
1332
if e.errno != errno.ENOENT:
1333
raise
1053
except NoSuchFile:
1054
pass
1334
1055
return None
1335
1056
1336
1057
def get_push_location(self):
1058
"""See Branch.get_push_location."""
1059
config = bzrlib.config.BranchConfig(self)
1060
push_loc = config.get_user_option('push_location')
1061
return push_loc
1062
1063
def set_push_location(self, location):
1064
"""See Branch.set_push_location."""
1065
config = bzrlib.config.LocationConfig(self.base)
1066
config.set_user_option('push_location', location)
1067
1068
@needs_write_lock
1337
1069
def set_parent(self, url):
1070
"""See Branch.set_parent."""
1338
1071
# TODO: Maybe delete old location files?
1339
1072
from bzrlib.atomicfile import AtomicFile
1340
self.lock_write()
1073
f = AtomicFile(self.controlfilename('parent'))
1341
1074
try:
1342
f = AtomicFile(self.controlfilename('parent'))
1343
try:
1344
f.write(url + '\n')
1345
f.commit()
1346
finally:
1347
f.close()
1075
f.write(url + '\n')
1076
f.commit()
1348
1077
finally:
1349
self.unlock()
1350
1351
1352
1353
1354
class ScratchBranch(Branch):
1078
f.close()
1079
1080
def tree_config(self):
1081
return TreeConfig(self)
1082
1083
def sign_revision(self, revision_id, gpg_strategy):
1084
"""See Branch.sign_revision."""
1085
plaintext = Testament.from_revision(self, revision_id).as_short_text()
1086
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1087
1088
@needs_write_lock
1089
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1090
"""See Branch.store_revision_signature."""
1091
self.revision_store.add(StringIO(gpg_strategy.sign(plaintext)),
1092
revision_id, "sig")
1093
1094
1095
class ScratchBranch(BzrBranch):
1355
1096
"""Special test class: a branch that cleans up after itself.
1356
1097
1357
1098
>>> b = ScratchBranch()
1358
1099
>>> isdir(b.base)
1359
1100
True
1360
1101
>>> bd = b.base
1361
>>> b.destroy()
1102
>>> b._transport.__del__()
1362
1103
>>> isdir(bd)
1363
1104
False
1364
1105
"""
1365
def __init__(self, files=[], dirs=[], base=None):
1106
1107
def __init__(self, files=[], dirs=[], transport=None):
1366
1108
"""Make a test branch.
1367
1109
1368
1110
This creates a temporary directory and runs init-tree in it.
1369
1111
1370
1112
If any files are listed, they are created in the working copy.
1371
1113
"""
1372
from tempfile import mkdtemp
1373
init = False
1374
if base is None:
1375
base = mkdtemp()
1376
init = True
1377
Branch.__init__(self, base, init=init)
1114
if transport is None:
1115
transport = bzrlib.transport.local.ScratchTransport()
1116
super(ScratchBranch, self).__init__(transport, init=True)
1117
else:
1118
super(ScratchBranch, self).__init__(transport)
1119
1378
1120
for d in dirs:
1379
os.mkdir(self.abspath(d))
1121
self._transport.mkdir(d)
1380
1122
1381
1123
for f in files:
1382
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1124
self._transport.put(f, 'content of %s' % f)
1383
1125
1384
1126
1385
1127
def clone(self):
1386
1128
"""
1387
1129
>>> orig = ScratchBranch(files=["file1", "file2"])
1388
1130
>>> clone = orig.clone()
1389
>>> os.path.samefile(orig.base, clone.base)
1131
>>> if os.name != 'nt':
1132
... os.path.samefile(orig.base, clone.base)
1133
... else:
1134
... orig.base == clone.base
1135
...
1390
1136
False
1391
1137
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1392
1138
True
1396
1142
base = mkdtemp()
1397
1143
os.rmdir(base)
1398
1144
copytree(self.base, base, symlinks=True)
1399
return ScratchBranch(base=base)
1400
1401
1402
1403
def __del__(self):
1404
self.destroy()
1405
1406
def destroy(self):
1407
"""Destroy the test branch, removing the scratch directory."""
1408
from shutil import rmtree
1409
try:
1410
if self.base:
1411
mutter("delete ScratchBranch %s" % self.base)
1412
rmtree(self.base)
1413
except OSError, e:
1414
# Work around for shutil.rmtree failing on Windows when
1415
# readonly files are encountered
1416
mutter("hit exception in destroying ScratchBranch: %s" % e)
1417
for root, dirs, files in os.walk(self.base, topdown=False):
1418
for name in files:
1419
os.chmod(os.path.join(root, name), 0700)
1420
rmtree(self.base)
1421
self.base = None
1422
1145
return ScratchBranch(
1146
transport=bzrlib.transport.local.ScratchTransport(base))
1423
1147
1424
1148
1425
1149
######################################################################
1438
1162
break
1439
1163
filename = head
1440
1164
return False
1441
1442
1443
1444
def gen_file_id(name):
1445
"""Return new file id.
1446
1447
This should probably generate proper UUIDs, but for the moment we
1448
cope with just randomness because running uuidgen every time is
1449
slow."""
1450
import re
1451
from binascii import hexlify
1452
from time import time
1453
1454
# get last component
1455
idx = name.rfind('/')
1456
if idx != -1:
1457
name = name[idx+1 : ]
1458
idx = name.rfind('\\')
1459
if idx != -1:
1460
name = name[idx+1 : ]
1461
1462
# make it not a hidden file
1463
name = name.lstrip('.')
1464
1465
# remove any wierd characters; we don't escape them but rather
1466
# just pull them out
1467
name = re.sub(r'[^\w.]', '', name)
1468
1469
s = hexlify(rand_bytes(8))
1470
return '-'.join((name, compact_date(time()), s))
1471
1472
1473
def gen_root_id():
1474
"""Return a new tree-root file id."""
1475
return gen_file_id('TREE_ROOT')
1476
1477
1478
def pull_loc(branch):
1479
# TODO: Should perhaps just make attribute be 'base' in
1480
# RemoteBranch and Branch?
1481
if hasattr(branch, "baseurl"):
1482
return branch.baseurl
1483
else:
1484
return branch.base
1485
1486
1487
def copy_branch(branch_from, to_location, revision=None):
1488
"""Copy branch_from into the existing directory to_location.
1489
1490
revision
1491
If not None, only revisions up to this point will be copied.
1492
The head of the new branch will be that revision.
1493
1494
to_location
1495
The name of a local directory that exists but is empty.
1496
"""
1497
from bzrlib.merge import merge
1498
from bzrlib.branch import Branch
1499
1500
assert isinstance(branch_from, Branch)
1501
assert isinstance(to_location, basestring)
1502
1503
br_to = Branch(to_location, init=True)
1504
br_to.set_root_id(branch_from.get_root_id())
1505
if revision is None:
1506
revno = branch_from.revno()
1507
else:
1508
revno, rev_id = branch_from.get_revision_info(revision)
1509
br_to.update_revisions(branch_from, stop_revision=revno)
1510
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1511
check_clean=False, ignore_zero=True)
1512
1513
from_location = pull_loc(branch_from)
1514
br_to.set_parent(pull_loc(branch_from))
1515
Loggerhead is a web-based interface for Breezy
Version: 2.0.1