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23
from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId, \
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DivergedBranches, NotBranchError
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.xml import unpack_xml
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# 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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return remotebranch.RemoteBranch(f, **args)
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(f, **args)
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return Branch(f, **args)
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def find_cached_branch(f, cache_root, **args):
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from remotebranch import RemoteBranch
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from bzrlib.remotebranch import RemoteBranch
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br = find_branch(f, **args)
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def cacheify(br, store_name):
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from meta_store import CachedStore
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from bzrlib.meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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os.mkdir(cache_path)
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new_store = CachedStore(getattr(br, store_name), cache_path)
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head, tail = os.path.split(f)
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# reached the root, whatever that may be
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raise BzrError('%r is not in a branch' % orig_f)
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raise NotBranchError('%s is not in a branch' % orig_f)
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
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class NoSuchRevision(BzrError):
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def __init__(self, branch, revision):
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self.revision = revision
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msg = "Branch %s has no revision %d" % (branch, revision)
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BzrError.__init__(self, msg)
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######################################################################
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self._lock = None
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self._lock_mode = self._lock_count = None
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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return _relpath(self.base, path)
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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if isinstance(file_or_path, basestring):
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def read_working_inventory(self):
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"""Read the working inventory."""
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from bzrlib.inventory import Inventory
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from bzrlib.xml import unpack_xml
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from time import time
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# ElementTree does its own conversion from UTF-8, so open in
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inv = unpack_xml(Inventory,
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self.controlfile('inventory', 'rb'))
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mutter("loaded inventory of %d items in %f"
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% (len(inv), time() - before))
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f = self.controlfile('inventory', 'rb')
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return bzrlib.xml.serializer_v4.read_inventory(f)
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"""Inventory for the working copy.""")
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def add(self, files, verbose=False, ids=None):
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def add(self, files, ids=None):
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"""Make files versioned.
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Note that the command line normally calls smart_add instead.
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Note that the command line normally calls smart_add instead,
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which can automatically recurse.
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This puts the files in the Added state, so that they will be
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recorded by the next commit.
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def get_revision_xml_file(self, revision_id):
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"""Return XML file object for revision object."""
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if not revision_id or not isinstance(revision_id, basestring):
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raise InvalidRevisionId(revision_id)
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return self.revision_store[revision_id]
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except (IndexError, KeyError):
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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get_revision_xml = get_revision_xml_file
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def get_revision(self, revision_id):
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"""Return the Revision object for a named revision"""
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xml_file = self.get_revision_xml_file(revision_id)
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if not revision_id or not isinstance(revision_id, basestring):
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raise InvalidRevisionId(revision_id)
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r = unpack_xml(Revision, self.revision_store[revision_id])
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r = bzrlib.xml.serializer_v4.read_revision(xml_file)
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except SyntaxError, e:
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raise bzrlib.errors.BzrError('failed to unpack revision_xml',
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assert r.revision_id == revision_id
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parameter which can be either an integer revno or a
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from bzrlib.inventory import Inventory
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from bzrlib.xml import unpack_xml
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return unpack_xml(Inventory, self.inventory_store[inventory_id])
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f = self.get_inventory_xml_file(inventory_id)
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return bzrlib.xml.serializer_v4.read_inventory(f)
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def get_inventory_xml(self, inventory_id):
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"""Get inventory XML as a file object."""
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return self.inventory_store[inventory_id]
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get_inventory_xml_file = get_inventory_xml
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def get_inventory_sha1(self, inventory_id):
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"""Return the sha1 hash of the inventory entry
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return sha_file(self.inventory_store[inventory_id])
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return sha_file(self.get_inventory_xml(inventory_id))
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def get_revision_inventory(self, revision_id):
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def common_ancestor(self, other, self_revno=None, other_revno=None):
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>>> from bzrlib.commit import commit
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>>> sb = ScratchBranch(files=['foo', 'foo~'])
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>>> sb.common_ancestor(sb) == (None, None)
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>>> commit.commit(sb, "Committing first revision", verbose=False)
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>>> commit(sb, "Committing first revision", verbose=False)
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>>> sb.common_ancestor(sb)[0]
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>>> clone = sb.clone()
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>>> commit.commit(sb, "Committing second revision", verbose=False)
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>>> commit(sb, "Committing second revision", verbose=False)
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>>> sb.common_ancestor(sb)[0]
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>>> sb.common_ancestor(clone)[0]
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>>> commit.commit(clone, "Committing divergent second revision",
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>>> commit(clone, "Committing divergent second revision",
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... verbose=False)
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>>> sb.common_ancestor(clone)[0]
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if stop_revision is None:
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stop_revision = other_len
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elif stop_revision > other_len:
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raise NoSuchRevision(self, stop_revision)
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raise bzrlib.errors.NoSuchRevision(self, stop_revision)
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return other_history[self_len:stop_revision]
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def update_revisions(self, other, stop_revision=None):
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"""Pull in all new revisions from other branch.
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>>> from bzrlib.commit import commit
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>>> bzrlib.trace.silent = True
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>>> br1 = ScratchBranch(files=['foo', 'bar'])
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>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
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>>> br2 = ScratchBranch()
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>>> br2.update_revisions(br1)
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>>> br2.revision_history()
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>>> br2.update_revisions(br1)
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>>> br1.text_store.total_size() == br2.text_store.total_size()
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from bzrlib.progress import ProgressBar
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from bzrlib.fetch import greedy_fetch
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from bzrlib.revision import get_intervening_revisions
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pb = bzrlib.ui.ui_factory.progress_bar()
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pb.update('comparing histories')
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revision_ids = self.missing_revisions(other, stop_revision)
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if stop_revision is None:
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other_revision = other.last_patch()
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other_revision = other.lookup_revision(stop_revision)
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count = greedy_fetch(self, other, other_revision, pb)[0]
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revision_ids = self.missing_revisions(other, stop_revision)
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except DivergedBranches, e:
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revision_ids = get_intervening_revisions(self.last_patch(),
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other_revision, self)
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assert self.last_patch() not in revision_ids
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except bzrlib.errors.NotAncestor:
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self.append_revision(*revision_ids)
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def install_revisions(self, other, revision_ids, pb):
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if hasattr(other.revision_store, "prefetch"):
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other.revision_store.prefetch(revision_ids)
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if hasattr(other.inventory_store, "prefetch"):
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inventory_ids = [other.get_revision(r).inventory_id
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for r in revision_ids]
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for rev_id in revision_ids:
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revision = other.get_revision(rev_id).inventory_id
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inventory_ids.append(revision)
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except bzrlib.errors.NoSuchRevision:
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other.inventory_store.prefetch(inventory_ids)
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pb = bzrlib.ui.ui_factory.progress_bar()
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needed_texts = set()
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for rev_id in revision_ids:
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pb.update('fetching revision', i, len(revision_ids))
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rev = other.get_revision(rev_id)
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for i, rev_id in enumerate(revision_ids):
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pb.update('fetching revision', i+1, len(revision_ids))
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rev = other.get_revision(rev_id)
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except bzrlib.errors.NoSuchRevision:
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revisions.append(rev)
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inv = other.get_inventory(str(rev.inventory_id))
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for key, entry in inv.iter_entries():
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count = self.text_store.copy_multi(other.text_store, needed_texts)
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print "Added %d texts." % count
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count, cp_fail = self.text_store.copy_multi(other.text_store,
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#print "Added %d texts." % count
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inventory_ids = [ f.inventory_id for f in revisions ]
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count = self.inventory_store.copy_multi(other.inventory_store,
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print "Added %d inventories." % count
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count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
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#print "Added %d inventories." % count
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revision_ids = [ f.revision_id for f in revisions]
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count = self.revision_store.copy_multi(other.revision_store,
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for revision_id in revision_ids:
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self.append_revision(revision_id)
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print "Added %d revisions." % count
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count, cp_fail = self.revision_store.copy_multi(other.revision_store,
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assert len(cp_fail) == 0
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return count, failures
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def commit(self, *args, **kw):
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from bzrlib.commit import commit
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commit(self, *args, **kw)
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def lookup_revision(self, revision):
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"""Return the revision identifier for a given revision information."""
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revno, info = self.get_revision_info(revision)
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revno, info = self._get_revision_info(revision)
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def revision_id_to_revno(self, revision_id):
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"""Given a revision id, return its revno"""
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history = self.revision_history()
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return history.index(revision_id) + 1
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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def get_revision_info(self, revision):
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"""Return (revno, revision id) for revision identifier.
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revision can also be a string, in which case it is parsed for something like
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'date:' or 'revid:' etc.
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revno, rev_id = self._get_revision_info(revision)
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raise bzrlib.errors.NoSuchRevision(self, revision)
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def get_rev_id(self, revno, history=None):
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"""Find the revision id of the specified revno."""
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history = self.revision_history()
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elif revno <= 0 or revno > len(history):
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raise bzrlib.errors.NoSuchRevision(self, revno)
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return history[revno - 1]
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def _get_revision_info(self, revision):
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"""Return (revno, revision id) for revision specifier.
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revision can be an integer, in which case it is assumed to be revno
924
(though this will translate negative values into positive ones)
925
revision can also be a string, in which case it is parsed for something
926
like 'date:' or 'revid:' etc.
928
A revid is always returned. If it is None, the specifier referred to
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the null revision. If the revid does not occur in the revision
930
history, revno will be None.
879
933
if revision is None:
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revs = self.revision_history()
887
941
if isinstance(revision, int):
890
# Mabye we should do this first, but we don't need it if revision == 0
892
943
revno = len(revs) + revision + 1
946
rev_id = self.get_rev_id(revno, revs)
895
947
elif isinstance(revision, basestring):
896
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for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
897
949
if revision.startswith(prefix):
898
revno = func(self, revs, revision)
950
result = func(self, revs, revision)
952
revno, rev_id = result
955
rev_id = self.get_rev_id(revno, revs)
901
raise BzrError('No namespace registered for string: %r' % revision)
958
raise BzrError('No namespace registered for string: %r' %
961
raise TypeError('Unhandled revision type %s' % revision)
903
if revno is None or revno <= 0 or revno > len(revs):
904
raise BzrError("no such revision %s" % revision)
905
return revno, revs[revno-1]
965
raise bzrlib.errors.NoSuchRevision(self, revision)
907
968
def _namespace_revno(self, revs, revision):
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969
"""Lookup a revision by revision number"""
909
970
assert revision.startswith('revno:')
911
return int(revision[6:])
972
return (int(revision[6:]),)
912
973
except ValueError:
914
975
REVISION_NAMESPACES['revno:'] = _namespace_revno
916
977
def _namespace_revid(self, revs, revision):
917
978
assert revision.startswith('revid:')
979
rev_id = revision[len('revid:'):]
919
return revs.index(revision[6:]) + 1
981
return revs.index(rev_id) + 1, rev_id
920
982
except ValueError:
922
984
REVISION_NAMESPACES['revid:'] = _namespace_revid
924
986
def _namespace_last(self, revs, revision):
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1073
# TODO: Handle timezone.
1012
1074
dt = datetime.datetime.fromtimestamp(r.timestamp)
1013
1075
if first >= dt and (last is None or dt >= last):
1016
1078
for i in range(len(revs)):
1017
1079
r = self.get_revision(revs[i])
1018
1080
# TODO: Handle timezone.
1019
1081
dt = datetime.datetime.fromtimestamp(r.timestamp)
1020
1082
if first <= dt and (last is None or dt <= last):
1022
1084
REVISION_NAMESPACES['date:'] = _namespace_date
1087
def _namespace_ancestor(self, revs, revision):
1088
from revision import common_ancestor, MultipleRevisionSources
1089
other_branch = find_branch(_trim_namespace('ancestor', revision))
1090
revision_a = self.last_patch()
1091
revision_b = other_branch.last_patch()
1092
for r, b in ((revision_a, self), (revision_b, other_branch)):
1094
raise bzrlib.errors.NoCommits(b)
1095
revision_source = MultipleRevisionSources(self, other_branch)
1096
result = common_ancestor(revision_a, revision_b, revision_source)
1098
revno = self.revision_id_to_revno(result)
1099
except bzrlib.errors.NoSuchRevision:
1104
REVISION_NAMESPACES['ancestor:'] = _namespace_ancestor
1024
1106
def revision_tree(self, revision_id):
1025
1107
"""Return Tree for a revision on this branch.
1344
def get_parent(self):
1345
"""Return the parent location of the branch.
1347
This is the default location for push/pull/missing. The usual
1348
pattern is that the user can override it by specifying a
1352
_locs = ['parent', 'pull', 'x-pull']
1355
return self.controlfile(l, 'r').read().strip('\n')
1357
if e.errno != errno.ENOENT:
1362
def set_parent(self, url):
1363
# TODO: Maybe delete old location files?
1364
from bzrlib.atomicfile import AtomicFile
1367
f = AtomicFile(self.controlfilename('parent'))
1376
def check_revno(self, revno):
1378
Check whether a revno corresponds to any revision.
1379
Zero (the NULL revision) is considered valid.
1382
self.check_real_revno(revno)
1384
def check_real_revno(self, revno):
1386
Check whether a revno corresponds to a real revision.
1387
Zero (the NULL revision) is considered invalid
1389
if revno < 1 or revno > self.revno():
1390
raise InvalidRevisionNumber(revno)
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1395
class ScratchBranch(Branch):
1260
1396
"""Special test class: a branch that cleans up after itself.
1377
1515
"""Return a new tree-root file id."""
1378
1516
return gen_file_id('TREE_ROOT')
1519
def copy_branch(branch_from, to_location, revision=None):
1520
"""Copy branch_from into the existing directory to_location.
1523
If not None, only revisions up to this point will be copied.
1524
The head of the new branch will be that revision.
1527
The name of a local directory that exists but is empty.
1529
from bzrlib.merge import merge
1531
assert isinstance(branch_from, Branch)
1532
assert isinstance(to_location, basestring)
1534
br_to = Branch(to_location, init=True)
1535
br_to.set_root_id(branch_from.get_root_id())
1536
if revision is None:
1537
revno = branch_from.revno()
1539
revno, rev_id = branch_from.get_revision_info(revision)
1540
br_to.update_revisions(branch_from, stop_revision=revno)
1541
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1542
check_clean=False, ignore_zero=True)
1543
br_to.set_parent(branch_from.base)
1546
def _trim_namespace(namespace, spec):
1547
full_namespace = namespace + ':'
1548
assert spec.startswith(full_namespace)
1549
return spec[len(full_namespace):]