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- Committer: Jelmer Vernooij
- Date: 2009-02-08 15:55:41 UTC
- mto: (0.312.1 master) (6883.23.1 bundle-git)
- mto: This revision was merged to the branch mainline in revision 6960.
- Revision ID: jelmer@samba.org-20090208155541-nz99rcyajxi5fp8g
Add FOSDEM roundtripping notes.
- files added:
- .bzrignore
- foreign
- notes
- tests
- files removed:
- .bzrignore
- bzrlib
- contrib
- contrib/bash
- contrib/zsh
- doc
- elementtree
- notes
- patches
- urlgrabber
added
removed
bzrlib/branch.py
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# Copyright (C) 2005 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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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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import bzrlib
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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
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from inventory import InventoryEntry, Inventory
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from osutils import isdir, quotefn, isfile, uuid, sha_file, username, \
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format_date, compact_date, pumpfile, user_email, rand_bytes, splitpath, \
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joinpath, sha_file, sha_string, file_kind, local_time_offset, appendpath
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from store import ImmutableStore
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from revision import Revision
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from errors import BzrError
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from textui import show_status
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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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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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import remotebranch
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return remotebranch.RemoteBranch(f, **args)
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else:
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return Branch(f, **args)
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
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current working directory.
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Lifted out of Branch.relpath for ease of testing.
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os.path.commonprefix (python2.4) has a bad bug that it works just
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on string prefixes, assuming that '/u' is a prefix of '/u2'. This
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avoids that problem."""
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rp = os.path.abspath(path)
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s = []
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head = rp
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while len(head) >= len(base):
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if head == base:
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break
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head, tail = os.path.split(head)
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if tail:
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s.insert(0, tail)
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else:
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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return os.sep.join(s)
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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f may be a filename or a URL.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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run into the root."""
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if f == None:
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f = os.getcwd()
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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else:
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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orig_f = f
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while True:
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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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return f
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head, tail = os.path.split(f)
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if head == f:
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# reached the root, whatever that may be
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raise BzrError('%r is not in a branch' % orig_f)
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f = head
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
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class NoSuchRevision(BzrError):
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def __init__(self, branch, revision):
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self.branch = branch
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self.revision = revision
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msg = "Branch %s has no revision %d" % (branch, revision)
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BzrError.__init__(self, msg)
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######################################################################
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# branch objects
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class Branch(object):
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"""Branch holding a history of revisions.
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base
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Base directory of the branch.
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_lock_mode
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None, or 'r' or 'w'
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_lock_count
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If _lock_mode is true, a positive count of the number of times the
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lock has been taken.
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_lock
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Lock object from bzrlib.lock.
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"""
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base = None
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_lock_mode = None
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_lock_count = None
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_lock = None
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def __init__(self, base, init=False, find_root=True):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch.
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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be versioned.
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find_root -- If true and init is false, find the root of the
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existing branch containing base.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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"""
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if init:
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self.base = os.path.realpath(base)
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self._make_control()
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elif find_root:
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self.base = find_branch_root(base)
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else:
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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from errors import NotBranchError
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raise NotBranchError("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self._check_format()
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self.text_store = ImmutableStore(self.controlfilename('text-store'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
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def __str__(self):
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return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
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if self._lock_mode or self._lock:
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from warnings import warn
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warn("branch %r was not explicitly unlocked" % self)
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self._lock.unlock()
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def lock_write(self):
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if self._lock_mode:
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if self._lock_mode != 'w':
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from errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_mode)
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self._lock_count += 1
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else:
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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self._lock_count = 1
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def lock_read(self):
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if self._lock_mode:
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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else:
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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self._lock_count = 1
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def unlock(self):
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if not self._lock_mode:
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from errors import LockError
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raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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else:
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self._lock.unlock()
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self._lock = None
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self._lock_mode = self._lock_count = None
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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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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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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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"""
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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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import codecs
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return codecs.open(fn, mode + 'b', 'utf-8',
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buffering=60000)
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else:
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raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
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os.mkdir(self.controlfilename([]))
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self.controlfile('README', 'w').write(
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"This is a Bazaar-NG control directory.\n"
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"Do not change any files in this directory.\n")
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self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
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for d in ('text-store', 'inventory-store', 'revision-store'):
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os.mkdir(self.controlfilename(d))
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for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name',
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'branch-lock'):
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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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def _check_format(self):
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"""Check this branch format is supported.
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The current tool only supports the current unstable format.
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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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"""
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# This ignores newlines so that we can open branches created
309
# 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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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 read_working_inventory(self):
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"""Read the working inventory."""
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before = time.time()
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# ElementTree does its own conversion from UTF-8, so open in
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# binary.
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self.lock_read()
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try:
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inv = Inventory.read_xml(self.controlfile('inventory', 'rb'))
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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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return inv
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finally:
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self.unlock()
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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.
340
"""
341
## TODO: factor out to atomicfile? is rename safe on windows?
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## TODO: Maybe some kind of clean/dirty marker on inventory?
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tmpfname = self.controlfilename('inventory.tmp')
344
tmpf = file(tmpfname, 'wb')
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inv.write_xml(tmpf)
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tmpf.close()
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inv_fname = self.controlfilename('inventory')
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if sys.platform == 'win32':
349
os.remove(inv_fname)
350
os.rename(tmpfname, inv_fname)
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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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357
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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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files
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List of paths to add, relative to the base of the tree.
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ids
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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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not (yet) exist.
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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
381
add all non-ignored children. Perhaps do that in a
382
higher-level method.
383
"""
384
# TODO: Re-adding a file that is removed in the working copy
385
# should probably put it back with the previous ID.
386
if isinstance(files, types.StringTypes):
387
assert(ids is None or isinstance(ids, types.StringTypes))
388
files = [files]
389
if ids is not None:
390
ids = [ids]
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if ids is None:
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ids = [None] * len(files)
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else:
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assert(len(ids) == len(files))
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self.lock_write()
398
try:
399
inv = self.read_working_inventory()
400
for f,file_id in zip(files, ids):
401
if is_control_file(f):
402
raise BzrError("cannot add control file %s" % quotefn(f))
403
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fp = splitpath(f)
405
406
if len(fp) == 0:
407
raise BzrError("cannot add top-level %r" % f)
408
409
fullpath = os.path.normpath(self.abspath(f))
410
411
try:
412
kind = file_kind(fullpath)
413
except OSError:
414
# maybe something better?
415
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
416
417
if kind != 'file' and kind != 'directory':
418
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
419
420
if file_id is None:
421
file_id = gen_file_id(f)
422
inv.add_path(f, kind=kind, file_id=file_id)
423
424
if verbose:
425
show_status('A', kind, quotefn(f))
426
427
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
428
429
self._write_inventory(inv)
430
finally:
431
self.unlock()
432
433
434
def print_file(self, file, revno):
435
"""Print `file` to stdout."""
436
self.lock_read()
437
try:
438
tree = self.revision_tree(self.lookup_revision(revno))
439
# use inventory as it was in that revision
440
file_id = tree.inventory.path2id(file)
441
if not file_id:
442
raise BzrError("%r is not present in revision %d" % (file, revno))
443
tree.print_file(file_id)
444
finally:
445
self.unlock()
446
447
448
def remove(self, files, verbose=False):
449
"""Mark nominated files for removal from the inventory.
450
451
This does not remove their text. This does not run on
452
453
TODO: Refuse to remove modified files unless --force is given?
454
455
TODO: Do something useful with directories.
456
457
TODO: Should this remove the text or not? Tough call; not
458
removing may be useful and the user can just use use rm, and
459
is the opposite of add. Removing it is consistent with most
460
other tools. Maybe an option.
461
"""
462
## TODO: Normalize names
463
## TODO: Remove nested loops; better scalability
464
if isinstance(files, types.StringTypes):
465
files = [files]
466
467
self.lock_write()
468
469
try:
470
tree = self.working_tree()
471
inv = tree.inventory
472
473
# do this before any modifications
474
for f in files:
475
fid = inv.path2id(f)
476
if not fid:
477
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
478
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
479
if verbose:
480
# having remove it, it must be either ignored or unknown
481
if tree.is_ignored(f):
482
new_status = 'I'
483
else:
484
new_status = '?'
485
show_status(new_status, inv[fid].kind, quotefn(f))
486
del inv[fid]
487
488
self._write_inventory(inv)
489
finally:
490
self.unlock()
491
492
493
# FIXME: this doesn't need to be a branch method
494
def set_inventory(self, new_inventory_list):
495
inv = Inventory()
496
for path, file_id, parent, kind in new_inventory_list:
497
name = os.path.basename(path)
498
if name == "":
499
continue
500
inv.add(InventoryEntry(file_id, name, kind, parent))
501
self._write_inventory(inv)
502
503
504
def unknowns(self):
505
"""Return all unknown files.
506
507
These are files in the working directory that are not versioned or
508
control files or ignored.
509
510
>>> b = ScratchBranch(files=['foo', 'foo~'])
511
>>> list(b.unknowns())
512
['foo']
513
>>> b.add('foo')
514
>>> list(b.unknowns())
515
[]
516
>>> b.remove('foo')
517
>>> list(b.unknowns())
518
['foo']
519
"""
520
return self.working_tree().unknowns()
521
522
523
def append_revision(self, revision_id):
524
mutter("add {%s} to revision-history" % revision_id)
525
rev_history = self.revision_history()
526
527
tmprhname = self.controlfilename('revision-history.tmp')
528
rhname = self.controlfilename('revision-history')
529
530
f = file(tmprhname, 'wt')
531
rev_history.append(revision_id)
532
f.write('\n'.join(rev_history))
533
f.write('\n')
534
f.close()
535
536
if sys.platform == 'win32':
537
os.remove(rhname)
538
os.rename(tmprhname, rhname)
539
540
541
542
def get_revision(self, revision_id):
543
"""Return the Revision object for a named revision"""
544
if not revision_id or not isinstance(revision_id, basestring):
545
raise ValueError('invalid revision-id: %r' % revision_id)
546
r = Revision.read_xml(self.revision_store[revision_id])
547
assert r.revision_id == revision_id
548
return r
549
550
def get_revision_sha1(self, revision_id):
551
"""Hash the stored value of a revision, and return it."""
552
# In the future, revision entries will be signed. At that
553
# point, it is probably best *not* to include the signature
554
# in the revision hash. Because that lets you re-sign
555
# the revision, (add signatures/remove signatures) and still
556
# have all hash pointers stay consistent.
557
# But for now, just hash the contents.
558
return sha_file(self.revision_store[revision_id])
559
560
561
def get_inventory(self, inventory_id):
562
"""Get Inventory object by hash.
563
564
TODO: Perhaps for this and similar methods, take a revision
565
parameter which can be either an integer revno or a
566
string hash."""
567
i = Inventory.read_xml(self.inventory_store[inventory_id])
568
return i
569
570
def get_inventory_sha1(self, inventory_id):
571
"""Return the sha1 hash of the inventory entry
572
"""
573
return sha_file(self.inventory_store[inventory_id])
574
575
576
def get_revision_inventory(self, revision_id):
577
"""Return inventory of a past revision."""
578
if revision_id == None:
579
return Inventory()
580
else:
581
return self.get_inventory(self.get_revision(revision_id).inventory_id)
582
583
584
def revision_history(self):
585
"""Return sequence of revision hashes on to this branch.
586
587
>>> ScratchBranch().revision_history()
588
[]
589
"""
590
self.lock_read()
591
try:
592
return [l.rstrip('\r\n') for l in
593
self.controlfile('revision-history', 'r').readlines()]
594
finally:
595
self.unlock()
596
597
598
def common_ancestor(self, other, self_revno=None, other_revno=None):
599
"""
600
>>> import commit
601
>>> sb = ScratchBranch(files=['foo', 'foo~'])
602
>>> sb.common_ancestor(sb) == (None, None)
603
True
604
>>> commit.commit(sb, "Committing first revision", verbose=False)
605
>>> sb.common_ancestor(sb)[0]
606
1
607
>>> clone = sb.clone()
608
>>> commit.commit(sb, "Committing second revision", verbose=False)
609
>>> sb.common_ancestor(sb)[0]
610
2
611
>>> sb.common_ancestor(clone)[0]
612
1
613
>>> commit.commit(clone, "Committing divergent second revision",
614
... verbose=False)
615
>>> sb.common_ancestor(clone)[0]
616
1
617
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
618
True
619
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
620
True
621
>>> clone2 = sb.clone()
622
>>> sb.common_ancestor(clone2)[0]
623
2
624
>>> sb.common_ancestor(clone2, self_revno=1)[0]
625
1
626
>>> sb.common_ancestor(clone2, other_revno=1)[0]
627
1
628
"""
629
my_history = self.revision_history()
630
other_history = other.revision_history()
631
if self_revno is None:
632
self_revno = len(my_history)
633
if other_revno is None:
634
other_revno = len(other_history)
635
indices = range(min((self_revno, other_revno)))
636
indices.reverse()
637
for r in indices:
638
if my_history[r] == other_history[r]:
639
return r+1, my_history[r]
640
return None, None
641
642
def enum_history(self, direction):
643
"""Return (revno, revision_id) for history of branch.
644
645
direction
646
'forward' is from earliest to latest
647
'reverse' is from latest to earliest
648
"""
649
rh = self.revision_history()
650
if direction == 'forward':
651
i = 1
652
for rid in rh:
653
yield i, rid
654
i += 1
655
elif direction == 'reverse':
656
i = len(rh)
657
while i > 0:
658
yield i, rh[i-1]
659
i -= 1
660
else:
661
raise ValueError('invalid history direction', direction)
662
663
664
def revno(self):
665
"""Return current revision number for this branch.
666
667
That is equivalent to the number of revisions committed to
668
this branch.
669
"""
670
return len(self.revision_history())
671
672
673
def last_patch(self):
674
"""Return last patch hash, or None if no history.
675
"""
676
ph = self.revision_history()
677
if ph:
678
return ph[-1]
679
else:
680
return None
681
682
683
def missing_revisions(self, other, stop_revision=None):
684
"""
685
If self and other have not diverged, return a list of the revisions
686
present in other, but missing from self.
687
688
>>> from bzrlib.commit import commit
689
>>> bzrlib.trace.silent = True
690
>>> br1 = ScratchBranch()
691
>>> br2 = ScratchBranch()
692
>>> br1.missing_revisions(br2)
693
[]
694
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
695
>>> br1.missing_revisions(br2)
696
[u'REVISION-ID-1']
697
>>> br2.missing_revisions(br1)
698
[]
699
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
700
>>> br1.missing_revisions(br2)
701
[]
702
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
703
>>> br1.missing_revisions(br2)
704
[u'REVISION-ID-2A']
705
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
706
>>> br1.missing_revisions(br2)
707
Traceback (most recent call last):
708
DivergedBranches: These branches have diverged.
709
"""
710
self_history = self.revision_history()
711
self_len = len(self_history)
712
other_history = other.revision_history()
713
other_len = len(other_history)
714
common_index = min(self_len, other_len) -1
715
if common_index >= 0 and \
716
self_history[common_index] != other_history[common_index]:
717
raise DivergedBranches(self, other)
718
719
if stop_revision is None:
720
stop_revision = other_len
721
elif stop_revision > other_len:
722
raise NoSuchRevision(self, stop_revision)
723
724
return other_history[self_len:stop_revision]
725
726
727
def update_revisions(self, other, stop_revision=None):
728
"""Pull in all new revisions from other branch.
729
730
>>> from bzrlib.commit import commit
731
>>> bzrlib.trace.silent = True
732
>>> br1 = ScratchBranch(files=['foo', 'bar'])
733
>>> br1.add('foo')
734
>>> br1.add('bar')
735
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
736
>>> br2 = ScratchBranch()
737
>>> br2.update_revisions(br1)
738
Added 2 texts.
739
Added 1 inventories.
740
Added 1 revisions.
741
>>> br2.revision_history()
742
[u'REVISION-ID-1']
743
>>> br2.update_revisions(br1)
744
Added 0 texts.
745
Added 0 inventories.
746
Added 0 revisions.
747
>>> br1.text_store.total_size() == br2.text_store.total_size()
748
True
749
"""
750
from bzrlib.progress import ProgressBar
751
752
pb = ProgressBar()
753
754
pb.update('comparing histories')
755
revision_ids = self.missing_revisions(other, stop_revision)
756
revisions = []
757
needed_texts = sets.Set()
758
i = 0
759
for rev_id in revision_ids:
760
i += 1
761
pb.update('fetching revision', i, len(revision_ids))
762
rev = other.get_revision(rev_id)
763
revisions.append(rev)
764
inv = other.get_inventory(str(rev.inventory_id))
765
for key, entry in inv.iter_entries():
766
if entry.text_id is None:
767
continue
768
if entry.text_id not in self.text_store:
769
needed_texts.add(entry.text_id)
770
771
pb.clear()
772
773
count = self.text_store.copy_multi(other.text_store, needed_texts)
774
print "Added %d texts." % count
775
inventory_ids = [ f.inventory_id for f in revisions ]
776
count = self.inventory_store.copy_multi(other.inventory_store,
777
inventory_ids)
778
print "Added %d inventories." % count
779
revision_ids = [ f.revision_id for f in revisions]
780
count = self.revision_store.copy_multi(other.revision_store,
781
revision_ids)
782
for revision_id in revision_ids:
783
self.append_revision(revision_id)
784
print "Added %d revisions." % count
785
786
787
def commit(self, *args, **kw):
788
"""Deprecated"""
789
from bzrlib.commit import commit
790
commit(self, *args, **kw)
791
792
793
def lookup_revision(self, revno):
794
"""Return revision hash for revision number."""
795
if revno == 0:
796
return None
797
798
try:
799
# list is 0-based; revisions are 1-based
800
return self.revision_history()[revno-1]
801
except IndexError:
802
raise BzrError("no such revision %s" % revno)
803
804
805
def revision_tree(self, revision_id):
806
"""Return Tree for a revision on this branch.
807
808
`revision_id` may be None for the null revision, in which case
809
an `EmptyTree` is returned."""
810
# TODO: refactor this to use an existing revision object
811
# so we don't need to read it in twice.
812
if revision_id == None:
813
return EmptyTree()
814
else:
815
inv = self.get_revision_inventory(revision_id)
816
return RevisionTree(self.text_store, inv)
817
818
819
def working_tree(self):
820
"""Return a `Tree` for the working copy."""
821
from workingtree import WorkingTree
822
return WorkingTree(self.base, self.read_working_inventory())
823
824
825
def basis_tree(self):
826
"""Return `Tree` object for last revision.
827
828
If there are no revisions yet, return an `EmptyTree`.
829
"""
830
r = self.last_patch()
831
if r == None:
832
return EmptyTree()
833
else:
834
return RevisionTree(self.text_store, self.get_revision_inventory(r))
835
836
837
838
def rename_one(self, from_rel, to_rel):
839
"""Rename one file.
840
841
This can change the directory or the filename or both.
842
"""
843
self.lock_write()
844
try:
845
tree = self.working_tree()
846
inv = tree.inventory
847
if not tree.has_filename(from_rel):
848
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
849
if tree.has_filename(to_rel):
850
raise BzrError("can't rename: new working file %r already exists" % to_rel)
851
852
file_id = inv.path2id(from_rel)
853
if file_id == None:
854
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
855
856
if inv.path2id(to_rel):
857
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
858
859
to_dir, to_tail = os.path.split(to_rel)
860
to_dir_id = inv.path2id(to_dir)
861
if to_dir_id == None and to_dir != '':
862
raise BzrError("can't determine destination directory id for %r" % to_dir)
863
864
mutter("rename_one:")
865
mutter(" file_id {%s}" % file_id)
866
mutter(" from_rel %r" % from_rel)
867
mutter(" to_rel %r" % to_rel)
868
mutter(" to_dir %r" % to_dir)
869
mutter(" to_dir_id {%s}" % to_dir_id)
870
871
inv.rename(file_id, to_dir_id, to_tail)
872
873
print "%s => %s" % (from_rel, to_rel)
874
875
from_abs = self.abspath(from_rel)
876
to_abs = self.abspath(to_rel)
877
try:
878
os.rename(from_abs, to_abs)
879
except OSError, e:
880
raise BzrError("failed to rename %r to %r: %s"
881
% (from_abs, to_abs, e[1]),
882
["rename rolled back"])
883
884
self._write_inventory(inv)
885
finally:
886
self.unlock()
887
888
889
def move(self, from_paths, to_name):
890
"""Rename files.
891
892
to_name must exist as a versioned directory.
893
894
If to_name exists and is a directory, the files are moved into
895
it, keeping their old names. If it is a directory,
896
897
Note that to_name is only the last component of the new name;
898
this doesn't change the directory.
899
"""
900
self.lock_write()
901
try:
902
## TODO: Option to move IDs only
903
assert not isinstance(from_paths, basestring)
904
tree = self.working_tree()
905
inv = tree.inventory
906
to_abs = self.abspath(to_name)
907
if not isdir(to_abs):
908
raise BzrError("destination %r is not a directory" % to_abs)
909
if not tree.has_filename(to_name):
910
raise BzrError("destination %r not in working directory" % to_abs)
911
to_dir_id = inv.path2id(to_name)
912
if to_dir_id == None and to_name != '':
913
raise BzrError("destination %r is not a versioned directory" % to_name)
914
to_dir_ie = inv[to_dir_id]
915
if to_dir_ie.kind not in ('directory', 'root_directory'):
916
raise BzrError("destination %r is not a directory" % to_abs)
917
918
to_idpath = inv.get_idpath(to_dir_id)
919
920
for f in from_paths:
921
if not tree.has_filename(f):
922
raise BzrError("%r does not exist in working tree" % f)
923
f_id = inv.path2id(f)
924
if f_id == None:
925
raise BzrError("%r is not versioned" % f)
926
name_tail = splitpath(f)[-1]
927
dest_path = appendpath(to_name, name_tail)
928
if tree.has_filename(dest_path):
929
raise BzrError("destination %r already exists" % dest_path)
930
if f_id in to_idpath:
931
raise BzrError("can't move %r to a subdirectory of itself" % f)
932
933
# OK, so there's a race here, it's possible that someone will
934
# create a file in this interval and then the rename might be
935
# left half-done. But we should have caught most problems.
936
937
for f in from_paths:
938
name_tail = splitpath(f)[-1]
939
dest_path = appendpath(to_name, name_tail)
940
print "%s => %s" % (f, dest_path)
941
inv.rename(inv.path2id(f), to_dir_id, name_tail)
942
try:
943
os.rename(self.abspath(f), self.abspath(dest_path))
944
except OSError, e:
945
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
946
["rename rolled back"])
947
948
self._write_inventory(inv)
949
finally:
950
self.unlock()
951
952
953
954
class ScratchBranch(Branch):
955
"""Special test class: a branch that cleans up after itself.
956
957
>>> b = ScratchBranch()
958
>>> isdir(b.base)
959
True
960
>>> bd = b.base
961
>>> b.destroy()
962
>>> isdir(bd)
963
False
964
"""
965
def __init__(self, files=[], dirs=[], base=None):
966
"""Make a test branch.
967
968
This creates a temporary directory and runs init-tree in it.
969
970
If any files are listed, they are created in the working copy.
971
"""
972
init = False
973
if base is None:
974
base = tempfile.mkdtemp()
975
init = True
976
Branch.__init__(self, base, init=init)
977
for d in dirs:
978
os.mkdir(self.abspath(d))
979
980
for f in files:
981
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
982
983
984
def clone(self):
985
"""
986
>>> orig = ScratchBranch(files=["file1", "file2"])
987
>>> clone = orig.clone()
988
>>> os.path.samefile(orig.base, clone.base)
989
False
990
>>> os.path.isfile(os.path.join(clone.base, "file1"))
991
True
992
"""
993
base = tempfile.mkdtemp()
994
os.rmdir(base)
995
shutil.copytree(self.base, base, symlinks=True)
996
return ScratchBranch(base=base)
997
998
def __del__(self):
999
self.destroy()
1000
1001
def destroy(self):
1002
"""Destroy the test branch, removing the scratch directory."""
1003
try:
1004
if self.base:
1005
mutter("delete ScratchBranch %s" % self.base)
1006
shutil.rmtree(self.base)
1007
except OSError, e:
1008
# Work around for shutil.rmtree failing on Windows when
1009
# readonly files are encountered
1010
mutter("hit exception in destroying ScratchBranch: %s" % e)
1011
for root, dirs, files in os.walk(self.base, topdown=False):
1012
for name in files:
1013
os.chmod(os.path.join(root, name), 0700)
1014
shutil.rmtree(self.base)
1015
self.base = None
1016
1017
1018
1019
######################################################################
1020
# predicates
1021
1022
1023
def is_control_file(filename):
1024
## FIXME: better check
1025
filename = os.path.normpath(filename)
1026
while filename != '':
1027
head, tail = os.path.split(filename)
1028
## mutter('check %r for control file' % ((head, tail), ))
1029
if tail == bzrlib.BZRDIR:
1030
return True
1031
if filename == head:
1032
break
1033
filename = head
1034
return False
1035
1036
1037
1038
def gen_file_id(name):
1039
"""Return new file id.
1040
1041
This should probably generate proper UUIDs, but for the moment we
1042
cope with just randomness because running uuidgen every time is
1043
slow."""
1044
import re
1045
1046
# get last component
1047
idx = name.rfind('/')
1048
if idx != -1:
1049
name = name[idx+1 : ]
1050
idx = name.rfind('\\')
1051
if idx != -1:
1052
name = name[idx+1 : ]
1053
1054
# make it not a hidden file
1055
name = name.lstrip('.')
1056
1057
# remove any wierd characters; we don't escape them but rather
1058
# just pull them out
1059
name = re.sub(r'[^\w.]', '', name)
1060
1061
s = hexlify(rand_bytes(8))
1062
return '-'.join((name, compact_date(time.time()), s))
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0