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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import sys, os, os.path, random, time, sha, sets, types, re, shutil, tempfile
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import traceback, socket, fnmatch, difflib, time
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from binascii import hexlify
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from inventory import Inventory
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from trace import mutter, note
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from tree import Tree, EmptyTree, RevisionTree, WorkingTree
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from inventory import InventoryEntry, Inventory
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from osutils import isdir, quotefn, isfile, uuid, sha_file, username, chomp, \
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format_date, compact_date, pumpfile, user_email, rand_bytes, splitpath, \
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joinpath, sha_string, file_kind, local_time_offset
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from store import ImmutableStore
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from revision import Revision
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from errors import bailout
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from textui import show_status
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from diff import diff_trees
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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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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# 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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return remotebranch.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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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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new_store = CachedStore(getattr(br, store_name), cache_path)
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setattr(br, store_name, new_store)
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if isinstance(br, RemoteBranch):
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cacheify(br, 'inventory_store')
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cacheify(br, 'text_store')
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cacheify(br, 'revision_store')
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
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current working directory.
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Lifted out of Branch.relpath for ease of testing.
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os.path.commonprefix (python2.4) has a bad bug that it works just
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on string prefixes, assuming that '/u' is a prefix of '/u2'. This
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avoids that problem."""
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rp = os.path.abspath(path)
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while len(head) >= len(base):
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head, tail = os.path.split(head)
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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f may be a filename or a URL.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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head, tail = os.path.split(f)
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# reached the root, whatever that may be
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raise bzrlib.errors.NotBranchError('%r is not in a branch' % orig_f)
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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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######################################################################
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class Branch(object):
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"""Branch holding a history of revisions.
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:todo: Perhaps use different stores for different classes of object,
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so that we can keep track of how much space each one uses,
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or garbage-collect them.
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:todo: Add a RemoteBranch subclass. For the basic case of read-only
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HTTP access this should be very easy by,
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just redirecting controlfile access into HTTP requests.
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We would need a RemoteStore working similarly.
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:todo: Keep the on-disk branch locked while the object exists.
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:todo: mkdir() method.
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Base directory of the branch.
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If _lock_mode is true, a positive count of the number of times the
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Lock object from bzrlib.lock.
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def __init__(self, base, init=False):
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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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:param base: Base directory for the branch.
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:param init: If True, create new control files in a previously
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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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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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self.base = os.path.realpath(base)
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from bzrlib.store import ImmutableStore
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self.base = os.path.realpath(base)
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self._make_control()
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self.base = find_branch_root(base)
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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bailout("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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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.text_store = ImmutableStore(self.controlfilename('text-store'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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__repr__ = __str__
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"""Return filename relative to branch top"""
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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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def lock_write(self):
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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_count += 1
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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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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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, types.StringTypes):
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if isinstance(file_or_path, basestring):
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file_or_path = [file_or_path]
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return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch"""
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return file(self.controlfilename(file_or_path), mode)
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
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rather should be atomically copied and replaced using atomicfile.
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
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return file(fn, mode)
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elif mode == 'r' or mode == 'w':
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# open in binary mode anyhow so there's no newline translation;
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# codecs uses line buffering by default; don't want that.
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return codecs.open(fn, mode + 'b', 'utf-8',
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raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
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from bzrlib.inventory import Inventory
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from bzrlib.xml import pack_xml
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os.mkdir(self.controlfilename([]))
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self.controlfile('README', 'w').write(
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"This is a Bazaar-NG control directory.\n"
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"Do not change any files in this directory.")
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"Do not change any files in this directory.\n")
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self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
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for d in ('text-store', 'inventory-store', 'revision-store'):
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os.mkdir(self.controlfilename(d))
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for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name'):
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'pending-merged-patches', 'branch-name',
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self.controlfile(f, 'w').write('')
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mutter('created control directory in ' + self.base)
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Inventory().write_xml(self.controlfile('inventory','w'))
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# if we want per-tree root ids then this is the place to set
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# them; they're not needed for now and so ommitted for
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pack_xml(Inventory(), self.controlfile('inventory','w'))
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def _check_format(self):
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In the future, we might need different in-memory Branch
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classes to support downlevel branches. But not yet.
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# read in binary mode to detect newline wierdness.
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fmt = self.controlfile('branch-format', 'rb').read()
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# This ignores newlines so that we can open branches created
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# on Windows from Linux and so on. I think it might be better
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# to always make all internal files in unix format.
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fmt = self.controlfile('branch-format', 'r').read()
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fmt.replace('\r\n', '')
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if fmt != BZR_BRANCH_FORMAT:
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bailout('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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raise BzrError('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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def get_root_id(self):
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"""Return the id of this branches root"""
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inv = self.read_working_inventory()
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return inv.root.file_id
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def set_root_id(self, file_id):
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inv = self.read_working_inventory()
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orig_root_id = inv.root.file_id
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del inv._byid[inv.root.file_id]
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inv.root.file_id = file_id
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inv._byid[inv.root.file_id] = inv.root
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if entry.parent_id in (None, orig_root_id):
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entry.parent_id = inv.root.file_id
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self._write_inventory(inv)
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def read_working_inventory(self):
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"""Read the working inventory."""
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inv = Inventory.read_xml(self.controlfile('inventory', 'r'))
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mutter("loaded inventory of %d items in %f"
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% (len(inv), time.time() - before))
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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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def _write_inventory(self, inv):
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"""Update the working inventory.
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That is to say, the inventory describing changes underway, that
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will be committed to the next revision.
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## TODO: factor out to atomicfile? is rename safe on windows?
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tmpfname = self.controlfilename('inventory.tmp')
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tmpf = file(tmpfname, 'w')
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os.rename(tmpfname, self.controlfilename('inventory'))
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from bzrlib.atomicfile import AtomicFile
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from bzrlib.xml import pack_xml
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f = AtomicFile(self.controlfilename('inventory'), 'wb')
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mutter('wrote working inventory')
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inventory = property(read_working_inventory, _write_inventory, None,
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"""Inventory for the working copy.""")
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def add(self, files, verbose=False):
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def add(self, files, verbose=False, 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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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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:todo: Perhaps have an option to add the ids even if the files do
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:todo: Perhaps return the ids of the files? But then again it
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is easy to retrieve them if they're needed.
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:todo: Option to specify file id.
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:todo: Adding a directory should optionally recurse down and
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add all non-ignored children. Perhaps do that in a
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>>> b = ScratchBranch(files=['foo'])
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>>> 'foo' in b.unknowns()
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>>> 'foo' in b.unknowns()
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>>> bool(b.inventory.path2id('foo'))
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Traceback (most recent call last):
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BzrError: ('foo is already versioned', [])
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>>> b.add(['nothere'])
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Traceback (most recent call last):
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BzrError: ('cannot add: not a regular file or directory: nothere', [])
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List of paths to add, relative to the base of the tree.
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If set, use these instead of automatically generated ids.
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Must be the same length as the list of files, but may
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contain None for ids that are to be autogenerated.
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TODO: Perhaps have an option to add the ids even if the files do
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TODO: Perhaps return the ids of the files? But then again it
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is easy to retrieve them if they're needed.
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TODO: Adding a directory should optionally recurse down and
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add all non-ignored children. Perhaps do that in a
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# TODO: Re-adding a file that is removed in the working copy
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# should probably put it back with the previous ID.
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if isinstance(files, types.StringTypes):
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if isinstance(files, basestring):
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assert(ids is None or isinstance(ids, basestring))
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inv = self.read_working_inventory()
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if is_control_file(f):
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bailout("cannot add control file %s" % quotefn(f))
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bailout("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self._rel(f))
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elif isdir(fullpath):
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bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
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parent_name = joinpath(fp[:-1])
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mutter("lookup parent %r" % parent_name)
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parent_id = inv.path2id(parent_name)
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if parent_id == None:
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bailout("cannot add: parent %r is not versioned"
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file_id = _gen_file_id(fp[-1])
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inv.add(InventoryEntry(file_id, fp[-1], kind=kind, parent_id=parent_id))
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show_status('A', kind, quotefn(f))
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mutter("add file %s file_id:{%s} kind=%r parent_id={%s}"
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% (f, file_id, kind, parent_id))
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self._write_inventory(inv)
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ids = [None] * len(files)
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assert(len(ids) == len(files))
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inv = self.read_working_inventory()
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for f,file_id in zip(files, ids):
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if is_control_file(f):
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raise BzrError("cannot add control file %s" % quotefn(f))
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raise BzrError("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self.abspath(f))
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kind = file_kind(fullpath)
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# maybe something better?
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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if kind != 'file' and kind != 'directory':
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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file_id = gen_file_id(f)
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inv.add_path(f, kind=kind, file_id=file_id)
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print 'added', quotefn(f)
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mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
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self._write_inventory(inv)
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def print_file(self, file, revno):
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"""Print `file` to stdout."""
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tree = self.revision_tree(self.lookup_revision(revno))
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# use inventory as it was in that revision
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file_id = tree.inventory.path2id(file)
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raise BzrError("%r is not present in revision %s" % (file, revno))
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tree.print_file(file_id)
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def remove(self, files, verbose=False):
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This does not remove their text. This does not run on
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:todo: Refuse to remove modified files unless --force is given?
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>>> b = ScratchBranch(files=['foo'])
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>>> b.inventory.has_filename('foo')
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>>> b.working_tree().has_filename('foo')
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>>> b.inventory.has_filename('foo')
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>>> b = ScratchBranch(files=['foo'])
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>>> b.inventory.has_filename('foo')
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>>> b.basis_tree().has_filename('foo')
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>>> b.working_tree().has_filename('foo')
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:todo: Do something useful with directories.
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:todo: Should this remove the text or not? Tough call; not
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TODO: Refuse to remove modified files unless --force is given?
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TODO: Do something useful with directories.
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TODO: Should this remove the text or not? Tough call; not
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removing may be useful and the user can just use use rm, and
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is the opposite of add. Removing it is consistent with most
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other tools. Maybe an option.
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## TODO: Normalize names
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## TODO: Remove nested loops; better scalability
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if isinstance(files, types.StringTypes):
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if isinstance(files, basestring):
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tree = self.working_tree()
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# do this before any modifications
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bailout("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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tree = self.working_tree()
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# do this before any modifications
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raise BzrError("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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self._write_inventory(inv)
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# FIXME: this doesn't need to be a branch method
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def set_inventory(self, new_inventory_list):
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from bzrlib.inventory import Inventory, InventoryEntry
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inv = Inventory(self.get_root_id())
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for path, file_id, parent, kind in new_inventory_list:
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name = os.path.basename(path)
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inv.add(InventoryEntry(file_id, name, kind, parent))
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self._write_inventory(inv)
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return self.working_tree().unknowns()
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def commit(self, message, timestamp=None, timezone=None,
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"""Commit working copy as a new revision.
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The basic approach is to add all the file texts into the
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store, then the inventory, then make a new revision pointing
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to that inventory and store that.
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This is not quite safe if the working copy changes during the
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commit; for the moment that is simply not allowed. A better
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approach is to make a temporary copy of the files before
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computing their hashes, and then add those hashes in turn to
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the inventory. This should mean at least that there are no
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broken hash pointers. There is no way we can get a snapshot
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of the whole directory at an instant. This would also have to
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be robust against files disappearing, moving, etc. So the
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whole thing is a bit hard.
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:param timestamp: if not None, seconds-since-epoch for a
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postdated/predated commit.
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## TODO: Show branch names
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# TODO: Don't commit if there are no changes, unless forced?
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# First walk over the working inventory; and both update that
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# and also build a new revision inventory. The revision
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# inventory needs to hold the text-id, sha1 and size of the
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# actual file versions committed in the revision. (These are
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# not present in the working inventory.) We also need to
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# detect missing/deleted files, and remove them from the
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work_inv = self.read_working_inventory()
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basis = self.basis_tree()
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basis_inv = basis.inventory
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for path, entry in work_inv.iter_entries():
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## TODO: Cope with files that have gone missing.
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## TODO: Check that the file kind has not changed from the previous
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## revision of this file (if any).
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file_id = entry.file_id
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mutter('commit prep file %s, id %r ' % (p, file_id))
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if not os.path.exists(p):
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mutter(" file is missing, removing from inventory")
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show_status('D', entry.kind, quotefn(path))
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missing_ids.append(file_id)
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# TODO: Handle files that have been deleted
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# TODO: Maybe a special case for empty files? Seems a
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# waste to store them many times.
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if basis_inv.has_id(file_id):
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old_kind = basis_inv[file_id].kind
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if old_kind != entry.kind:
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bailout("entry %r changed kind from %r to %r"
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% (file_id, old_kind, entry.kind))
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if entry.kind == 'directory':
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bailout("%s is entered as directory but not a directory" % quotefn(p))
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elif entry.kind == 'file':
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bailout("%s is entered as file but is not a file" % quotefn(p))
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content = file(p, 'rb').read()
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entry.text_sha1 = sha_string(content)
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entry.text_size = len(content)
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old_ie = basis_inv.has_id(file_id) and basis_inv[file_id]
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and (old_ie.text_size == entry.text_size)
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and (old_ie.text_sha1 == entry.text_sha1)):
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## assert content == basis.get_file(file_id).read()
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entry.text_id = basis_inv[file_id].text_id
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mutter(' unchanged from previous text_id {%s}' %
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entry.text_id = _gen_file_id(entry.name)
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self.text_store.add(content, entry.text_id)
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mutter(' stored with text_id {%s}' % entry.text_id)
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elif (old_ie.name == entry.name
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and old_ie.parent_id == entry.parent_id):
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show_status(state, entry.kind, quotefn(path))
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for file_id in missing_ids:
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# have to do this later so we don't mess up the iterator.
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# since parents may be removed before their children we
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# FIXME: There's probably a better way to do this; perhaps
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# the workingtree should know how to filter itself.
458
if work_inv.has_id(file_id):
459
del work_inv[file_id]
462
inv_id = rev_id = _gen_revision_id(time.time())
464
inv_tmp = tempfile.TemporaryFile()
465
inv.write_xml(inv_tmp)
467
self.inventory_store.add(inv_tmp, inv_id)
468
mutter('new inventory_id is {%s}' % inv_id)
470
self._write_inventory(work_inv)
472
if timestamp == None:
473
timestamp = time.time()
475
if committer == None:
476
committer = username()
479
timezone = local_time_offset()
481
mutter("building commit log message")
482
rev = Revision(timestamp=timestamp,
485
precursor = self.last_patch(),
490
rev_tmp = tempfile.TemporaryFile()
491
rev.write_xml(rev_tmp)
493
self.revision_store.add(rev_tmp, rev_id)
494
mutter("new revision_id is {%s}" % rev_id)
496
## XXX: Everything up to here can simply be orphaned if we abort
497
## the commit; it will leave junk files behind but that doesn't
500
## TODO: Read back the just-generated changeset, and make sure it
501
## applies and recreates the right state.
503
## TODO: Also calculate and store the inventory SHA1
504
mutter("committing patch r%d" % (self.revno() + 1))
506
mutter("append to revision-history")
507
self.controlfile('revision-history', 'at').write(rev_id + '\n')
579
def append_revision(self, *revision_ids):
580
from bzrlib.atomicfile import AtomicFile
582
for revision_id in revision_ids:
583
mutter("add {%s} to revision-history" % revision_id)
585
rev_history = self.revision_history()
586
rev_history.extend(revision_ids)
588
f = AtomicFile(self.controlfilename('revision-history'))
590
for rev_id in rev_history:
597
def get_revision_xml(self, revision_id):
598
"""Return XML file object for revision object."""
599
if not revision_id or not isinstance(revision_id, basestring):
600
raise InvalidRevisionId(revision_id)
605
return self.revision_store[revision_id]
607
raise bzrlib.errors.NoSuchRevision(self, revision_id)
512
612
def get_revision(self, revision_id):
513
613
"""Return the Revision object for a named revision"""
514
r = Revision.read_xml(self.revision_store[revision_id])
614
xml_file = self.get_revision_xml(revision_id)
617
r = unpack_xml(Revision, xml_file)
618
except SyntaxError, e:
619
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
515
623
assert r.revision_id == revision_id
627
def get_revision_delta(self, revno):
628
"""Return the delta for one revision.
630
The delta is relative to its mainline predecessor, or the
631
empty tree for revision 1.
633
assert isinstance(revno, int)
634
rh = self.revision_history()
635
if not (1 <= revno <= len(rh)):
636
raise InvalidRevisionNumber(revno)
638
# revno is 1-based; list is 0-based
640
new_tree = self.revision_tree(rh[revno-1])
642
old_tree = EmptyTree()
644
old_tree = self.revision_tree(rh[revno-2])
646
return compare_trees(old_tree, new_tree)
650
def get_revision_sha1(self, revision_id):
651
"""Hash the stored value of a revision, and return it."""
652
# In the future, revision entries will be signed. At that
653
# point, it is probably best *not* to include the signature
654
# in the revision hash. Because that lets you re-sign
655
# the revision, (add signatures/remove signatures) and still
656
# have all hash pointers stay consistent.
657
# But for now, just hash the contents.
658
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
519
661
def get_inventory(self, inventory_id):
520
662
"""Get Inventory object by hash.
522
:todo: Perhaps for this and similar methods, take a revision
664
TODO: Perhaps for this and similar methods, take a revision
523
665
parameter which can be either an integer revno or a
525
i = Inventory.read_xml(self.inventory_store[inventory_id])
667
from bzrlib.inventory import Inventory
668
from bzrlib.xml import unpack_xml
670
return unpack_xml(Inventory, self.get_inventory_xml(inventory_id))
673
def get_inventory_xml(self, inventory_id):
674
"""Get inventory XML as a file object."""
675
return self.inventory_store[inventory_id]
678
def get_inventory_sha1(self, inventory_id):
679
"""Return the sha1 hash of the inventory entry
681
return sha_file(self.get_inventory_xml(inventory_id))
529
684
def get_revision_inventory(self, revision_id):
530
685
"""Return inventory of a past revision."""
686
# bzr 0.0.6 imposes the constraint that the inventory_id
687
# must be the same as its revision, so this is trivial.
531
688
if revision_id == None:
689
from bzrlib.inventory import Inventory
690
return Inventory(self.get_root_id())
534
return self.get_inventory(self.get_revision(revision_id).inventory_id)
692
return self.get_inventory(revision_id)
537
695
def revision_history(self):
549
757
That is equivalent to the number of revisions committed to
552
>>> b = ScratchBranch()
555
>>> b.commit('no foo')
559
760
return len(self.revision_history())
562
763
def last_patch(self):
563
764
"""Return last patch hash, or None if no history.
565
>>> ScratchBranch().last_patch() == None
568
766
ph = self.revision_history()
573
def lookup_revision(self, revno):
574
"""Return revision hash for revision number."""
579
# list is 0-based; revisions are 1-based
580
return self.revision_history()[revno-1]
582
bailout("no such revision %s" % revno)
773
def missing_revisions(self, other, stop_revision=None):
775
If self and other have not diverged, return a list of the revisions
776
present in other, but missing from self.
778
>>> from bzrlib.commit import commit
779
>>> bzrlib.trace.silent = True
780
>>> br1 = ScratchBranch()
781
>>> br2 = ScratchBranch()
782
>>> br1.missing_revisions(br2)
784
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
785
>>> br1.missing_revisions(br2)
787
>>> br2.missing_revisions(br1)
789
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
790
>>> br1.missing_revisions(br2)
792
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
793
>>> br1.missing_revisions(br2)
795
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
796
>>> br1.missing_revisions(br2)
797
Traceback (most recent call last):
798
DivergedBranches: These branches have diverged.
800
self_history = self.revision_history()
801
self_len = len(self_history)
802
other_history = other.revision_history()
803
other_len = len(other_history)
804
common_index = min(self_len, other_len) -1
805
if common_index >= 0 and \
806
self_history[common_index] != other_history[common_index]:
807
raise DivergedBranches(self, other)
809
if stop_revision is None:
810
stop_revision = other_len
811
elif stop_revision > other_len:
812
raise NoSuchRevision(self, stop_revision)
814
return other_history[self_len:stop_revision]
817
def update_revisions(self, other, stop_revision=None):
818
"""Pull in all new revisions from other branch.
820
>>> from bzrlib.commit import commit
821
>>> bzrlib.trace.silent = True
822
>>> br1 = ScratchBranch(files=['foo', 'bar'])
825
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
826
>>> br2 = ScratchBranch()
827
>>> br2.update_revisions(br1)
831
>>> br2.revision_history()
833
>>> br2.update_revisions(br1)
837
>>> br1.text_store.total_size() == br2.text_store.total_size()
840
from bzrlib.progress import ProgressBar
844
pb.update('comparing histories')
845
revision_ids = self.missing_revisions(other, stop_revision)
847
if hasattr(other.revision_store, "prefetch"):
848
other.revision_store.prefetch(revision_ids)
849
if hasattr(other.inventory_store, "prefetch"):
850
inventory_ids = [other.get_revision(r).inventory_id
851
for r in revision_ids]
852
other.inventory_store.prefetch(inventory_ids)
857
for rev_id in revision_ids:
859
pb.update('fetching revision', i, len(revision_ids))
860
rev = other.get_revision(rev_id)
861
revisions.append(rev)
862
inv = other.get_inventory(str(rev.inventory_id))
863
for key, entry in inv.iter_entries():
864
if entry.text_id is None:
866
if entry.text_id not in self.text_store:
867
needed_texts.add(entry.text_id)
871
count = self.text_store.copy_multi(other.text_store, needed_texts)
872
print "Added %d texts." % count
873
inventory_ids = [ f.inventory_id for f in revisions ]
874
count = self.inventory_store.copy_multi(other.inventory_store,
876
print "Added %d inventories." % count
877
revision_ids = [ f.revision_id for f in revisions]
878
count = self.revision_store.copy_multi(other.revision_store,
880
for revision_id in revision_ids:
881
self.append_revision(revision_id)
882
print "Added %d revisions." % count
885
def commit(self, *args, **kw):
886
from bzrlib.commit import commit
887
commit(self, *args, **kw)
890
def lookup_revision(self, revision):
891
"""Return the revision identifier for a given revision information."""
892
revno, info = self.get_revision_info(revision)
895
def get_revision_info(self, revision):
896
"""Return (revno, revision id) for revision identifier.
898
revision can be an integer, in which case it is assumed to be revno (though
899
this will translate negative values into positive ones)
900
revision can also be a string, in which case it is parsed for something like
901
'date:' or 'revid:' etc.
906
try:# Convert to int if possible
907
revision = int(revision)
910
revs = self.revision_history()
911
if isinstance(revision, int):
914
# Mabye we should do this first, but we don't need it if revision == 0
916
revno = len(revs) + revision + 1
919
elif isinstance(revision, basestring):
920
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
921
if revision.startswith(prefix):
922
revno = func(self, revs, revision)
925
raise BzrError('No namespace registered for string: %r' % revision)
927
if revno is None or revno <= 0 or revno > len(revs):
928
raise BzrError("no such revision %s" % revision)
929
return revno, revs[revno-1]
931
def _namespace_revno(self, revs, revision):
932
"""Lookup a revision by revision number"""
933
assert revision.startswith('revno:')
935
return int(revision[6:])
938
REVISION_NAMESPACES['revno:'] = _namespace_revno
940
def _namespace_revid(self, revs, revision):
941
assert revision.startswith('revid:')
943
return revs.index(revision[6:]) + 1
946
REVISION_NAMESPACES['revid:'] = _namespace_revid
948
def _namespace_last(self, revs, revision):
949
assert revision.startswith('last:')
951
offset = int(revision[5:])
956
raise BzrError('You must supply a positive value for --revision last:XXX')
957
return len(revs) - offset + 1
958
REVISION_NAMESPACES['last:'] = _namespace_last
960
def _namespace_tag(self, revs, revision):
961
assert revision.startswith('tag:')
962
raise BzrError('tag: namespace registered, but not implemented.')
963
REVISION_NAMESPACES['tag:'] = _namespace_tag
965
def _namespace_date(self, revs, revision):
966
assert revision.startswith('date:')
968
# Spec for date revisions:
970
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
971
# it can also start with a '+/-/='. '+' says match the first
972
# entry after the given date. '-' is match the first entry before the date
973
# '=' is match the first entry after, but still on the given date.
975
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
976
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
977
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
978
# May 13th, 2005 at 0:00
980
# So the proper way of saying 'give me all entries for today' is:
981
# -r {date:+today}:{date:-tomorrow}
982
# The default is '=' when not supplied
985
if val[:1] in ('+', '-', '='):
986
match_style = val[:1]
989
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
990
if val.lower() == 'yesterday':
991
dt = today - datetime.timedelta(days=1)
992
elif val.lower() == 'today':
994
elif val.lower() == 'tomorrow':
995
dt = today + datetime.timedelta(days=1)
998
# This should be done outside the function to avoid recompiling it.
999
_date_re = re.compile(
1000
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1002
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1004
m = _date_re.match(val)
1005
if not m or (not m.group('date') and not m.group('time')):
1006
raise BzrError('Invalid revision date %r' % revision)
1009
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1011
year, month, day = today.year, today.month, today.day
1013
hour = int(m.group('hour'))
1014
minute = int(m.group('minute'))
1015
if m.group('second'):
1016
second = int(m.group('second'))
1020
hour, minute, second = 0,0,0
1022
dt = datetime.datetime(year=year, month=month, day=day,
1023
hour=hour, minute=minute, second=second)
1027
if match_style == '-':
1029
elif match_style == '=':
1030
last = dt + datetime.timedelta(days=1)
1033
for i in range(len(revs)-1, -1, -1):
1034
r = self.get_revision(revs[i])
1035
# TODO: Handle timezone.
1036
dt = datetime.datetime.fromtimestamp(r.timestamp)
1037
if first >= dt and (last is None or dt >= last):
1040
for i in range(len(revs)):
1041
r = self.get_revision(revs[i])
1042
# TODO: Handle timezone.
1043
dt = datetime.datetime.fromtimestamp(r.timestamp)
1044
if first <= dt and (last is None or dt <= last):
1046
REVISION_NAMESPACES['date:'] = _namespace_date
585
1048
def revision_tree(self, revision_id):
586
1049
"""Return Tree for a revision on this branch.
588
1051
`revision_id` may be None for the null revision, in which case
589
1052
an `EmptyTree` is returned."""
1053
# TODO: refactor this to use an existing revision object
1054
# so we don't need to read it in twice.
591
1055
if revision_id == None:
592
1056
return EmptyTree()
626
def write_log(self, show_timezone='original'):
627
"""Write out human-readable log of commits to this branch
629
:param utc: If true, show dates in universal time, not local time."""
630
## TODO: Option to choose either original, utc or local timezone
633
for p in self.revision_history():
635
print 'revno:', revno
636
## TODO: Show hash if --id is given.
637
##print 'revision-hash:', p
638
rev = self.get_revision(p)
639
print 'committer:', rev.committer
640
print 'timestamp: %s' % (format_date(rev.timestamp, rev.timezone or 0,
643
## opportunistic consistency check, same as check_patch_chaining
644
if rev.precursor != precursor:
645
bailout("mismatched precursor!")
649
print ' (no message)'
651
for l in rev.message.split('\n'):
659
def show_status(branch, show_all=False):
660
"""Display single-line status for non-ignored working files.
662
The list is show sorted in order by file name.
664
>>> b = ScratchBranch(files=['foo', 'foo~'])
670
>>> b.commit("add foo")
672
>>> os.unlink(b._rel('foo'))
1081
def rename_one(self, from_rel, to_rel):
1084
This can change the directory or the filename or both.
1088
tree = self.working_tree()
1089
inv = tree.inventory
1090
if not tree.has_filename(from_rel):
1091
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1092
if tree.has_filename(to_rel):
1093
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1095
file_id = inv.path2id(from_rel)
1097
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1099
if inv.path2id(to_rel):
1100
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1102
to_dir, to_tail = os.path.split(to_rel)
1103
to_dir_id = inv.path2id(to_dir)
1104
if to_dir_id == None and to_dir != '':
1105
raise BzrError("can't determine destination directory id for %r" % to_dir)
1107
mutter("rename_one:")
1108
mutter(" file_id {%s}" % file_id)
1109
mutter(" from_rel %r" % from_rel)
1110
mutter(" to_rel %r" % to_rel)
1111
mutter(" to_dir %r" % to_dir)
1112
mutter(" to_dir_id {%s}" % to_dir_id)
1114
inv.rename(file_id, to_dir_id, to_tail)
1116
print "%s => %s" % (from_rel, to_rel)
1118
from_abs = self.abspath(from_rel)
1119
to_abs = self.abspath(to_rel)
1121
os.rename(from_abs, to_abs)
1123
raise BzrError("failed to rename %r to %r: %s"
1124
% (from_abs, to_abs, e[1]),
1125
["rename rolled back"])
1127
self._write_inventory(inv)
1132
def move(self, from_paths, to_name):
1135
to_name must exist as a versioned directory.
1137
If to_name exists and is a directory, the files are moved into
1138
it, keeping their old names. If it is a directory,
1140
Note that to_name is only the last component of the new name;
1141
this doesn't change the directory.
1145
## TODO: Option to move IDs only
1146
assert not isinstance(from_paths, basestring)
1147
tree = self.working_tree()
1148
inv = tree.inventory
1149
to_abs = self.abspath(to_name)
1150
if not isdir(to_abs):
1151
raise BzrError("destination %r is not a directory" % to_abs)
1152
if not tree.has_filename(to_name):
1153
raise BzrError("destination %r not in working directory" % to_abs)
1154
to_dir_id = inv.path2id(to_name)
1155
if to_dir_id == None and to_name != '':
1156
raise BzrError("destination %r is not a versioned directory" % to_name)
1157
to_dir_ie = inv[to_dir_id]
1158
if to_dir_ie.kind not in ('directory', 'root_directory'):
1159
raise BzrError("destination %r is not a directory" % to_abs)
1161
to_idpath = inv.get_idpath(to_dir_id)
1163
for f in from_paths:
1164
if not tree.has_filename(f):
1165
raise BzrError("%r does not exist in working tree" % f)
1166
f_id = inv.path2id(f)
1168
raise BzrError("%r is not versioned" % f)
1169
name_tail = splitpath(f)[-1]
1170
dest_path = appendpath(to_name, name_tail)
1171
if tree.has_filename(dest_path):
1172
raise BzrError("destination %r already exists" % dest_path)
1173
if f_id in to_idpath:
1174
raise BzrError("can't move %r to a subdirectory of itself" % f)
1176
# OK, so there's a race here, it's possible that someone will
1177
# create a file in this interval and then the rename might be
1178
# left half-done. But we should have caught most problems.
1180
for f in from_paths:
1181
name_tail = splitpath(f)[-1]
1182
dest_path = appendpath(to_name, name_tail)
1183
print "%s => %s" % (f, dest_path)
1184
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1186
os.rename(self.abspath(f), self.abspath(dest_path))
1188
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1189
["rename rolled back"])
1191
self._write_inventory(inv)
1196
def revert(self, filenames, old_tree=None, backups=True):
1197
"""Restore selected files to the versions from a previous tree.
1200
If true (default) backups are made of files before
1203
from bzrlib.errors import NotVersionedError, BzrError
1204
from bzrlib.atomicfile import AtomicFile
1205
from bzrlib.osutils import backup_file
677
:todo: Get state for single files.
679
:todo: Perhaps show a slash at the end of directory names.
1207
inv = self.read_working_inventory()
1208
if old_tree is None:
1209
old_tree = self.basis_tree()
1210
old_inv = old_tree.inventory
1213
for fn in filenames:
1214
file_id = inv.path2id(fn)
1216
raise NotVersionedError("not a versioned file", fn)
1217
if not old_inv.has_id(file_id):
1218
raise BzrError("file not present in old tree", fn, file_id)
1219
nids.append((fn, file_id))
1221
# TODO: Rename back if it was previously at a different location
1223
# TODO: If given a directory, restore the entire contents from
1224
# the previous version.
1226
# TODO: Make a backup to a temporary file.
1228
# TODO: If the file previously didn't exist, delete it?
1229
for fn, file_id in nids:
1232
f = AtomicFile(fn, 'wb')
1234
f.write(old_tree.get_file(file_id).read())
1240
def pending_merges(self):
1241
"""Return a list of pending merges.
1243
These are revisions that have been merged into the working
1244
directory but not yet committed.
683
# We have to build everything into a list first so that it can
684
# sorted by name, incorporating all the different sources.
686
# FIXME: Rather than getting things in random order and then sorting,
687
# just step through in order.
689
# Interesting case: the old ID for a file has been removed,
690
# but a new file has been created under that name.
692
old = branch.basis_tree()
693
old_inv = old.inventory
694
new = branch.working_tree()
695
new_inv = new.inventory
697
for fs, fid, oldname, newname, kind in diff_trees(old, new):
699
show_status(fs, kind,
700
oldname + ' => ' + newname)
701
elif fs == 'A' or fs == 'M':
702
show_status(fs, kind, newname)
704
show_status(fs, kind, oldname)
707
show_status(fs, kind, newname)
710
show_status(fs, kind, newname)
712
show_status(fs, kind, newname)
714
bailout("wierd file state %r" % ((fs, fid),))
1246
cfn = self.controlfilename('pending-merges')
1247
if not os.path.exists(cfn):
1250
for l in self.controlfile('pending-merges', 'r').readlines():
1251
p.append(l.rstrip('\n'))
1255
def add_pending_merge(self, revision_id):
1256
from bzrlib.revision import validate_revision_id
1258
validate_revision_id(revision_id)
1260
p = self.pending_merges()
1261
if revision_id in p:
1263
p.append(revision_id)
1264
self.set_pending_merges(p)
1267
def set_pending_merges(self, rev_list):
1268
from bzrlib.atomicfile import AtomicFile
1271
f = AtomicFile(self.controlfilename('pending-merges'))
718
1283
class ScratchBranch(Branch):