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- Committer: Martin Pool
- Date: 2005-05-27 05:10:23 UTC
- Revision ID: mbp@sourcefrog.net-20050527051023-b8a3681b38a2d228
- merge portable lock module from John
- files added:
- bzrlib/statcache.py
- files removed:
- bzr-man.py
- bzrlib/selftest
- contrib/emacs
- effbot
- effbot/org
- plugins
- plugins/changeset
- tools
- files renamed:
- contrib/bash/bzr.simple => contrib/bash/bzr
- files modified:
- .bzrignore
added
removed
bzrlib/branch.py
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import sys
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import os
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import 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 bzrlib.trace import mutter, note
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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import bzrlib.errors
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from bzrlib.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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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_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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import lock
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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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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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else:
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return Branch(f, **args)
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def find_cached_branch(f, cache_root, **args):
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from remotebranch import RemoteBranch
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br = find_branch(f, **args)
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def cacheify(br, store_name):
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from meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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os.mkdir(cache_path)
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new_store = CachedStore(getattr(br, store_name), cache_path)
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setattr(br, store_name, new_store)
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if isinstance(br, RemoteBranch):
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cacheify(br, 'inventory_store')
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cacheify(br, 'text_store')
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cacheify(br, 'revision_store')
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return br
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
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current working directory.
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Lifted out of Branch.relpath for ease of testing.
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os.path.commonprefix (python2.4) has a bad bug that it works just
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on string prefixes, assuming that '/u' is a prefix of '/u2'. This
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avoids that problem."""
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rp = os.path.abspath(path)
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s = []
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head = rp
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while len(head) >= len(base):
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if head == base:
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break
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head, tail = os.path.split(head)
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if tail:
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s.insert(0, tail)
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else:
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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return os.sep.join(s)
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def find_branch_root(f=None):
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raise BzrError('%r is not in a branch' % orig_f)
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f = head
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79
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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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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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90
"""
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_lockmode = None
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base = None
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_lock_mode = None
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_lock_count = None
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_lock = None
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def __init__(self, base, init=False, find_root=True):
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def __init__(self, base, init=False, find_root=True, lock_mode='w'):
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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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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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"""
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from bzrlib.store import ImmutableStore
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if init:
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self.base = os.path.realpath(base)
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self._make_control()
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['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._lockfile = None
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self.lock(lock_mode)
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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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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 lock(self, mode='w'):
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"""Lock the on-disk branch, excluding other processes."""
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try:
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import fcntl, errno
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if mode == 'w':
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lm = fcntl.LOCK_EX
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om = os.O_WRONLY | os.O_CREAT
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elif mode == 'r':
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lm = fcntl.LOCK_SH
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om = os.O_RDONLY
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else:
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raise BzrError("invalid locking mode %r" % mode)
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try:
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lockfile = os.open(self.controlfilename('branch-lock'), om)
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except OSError, e:
155
if e.errno == errno.ENOENT:
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# might not exist on branches from <0.0.4
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self.controlfile('branch-lock', 'w').close()
158
lockfile = os.open(self.controlfilename('branch-lock'), om)
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else:
160
raise e
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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:
248
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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fcntl.lockf(lockfile, lm)
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def unlock():
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fcntl.lockf(lockfile, fcntl.LOCK_UN)
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os.close(lockfile)
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self._lockmode = None
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self.unlock = unlock
168
self._lockmode = mode
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except ImportError:
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import warnings
171
warnings.warning("please write a locking method for platform %r" % sys.platform)
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def unlock():
173
self._lockmode = None
174
self.unlock = unlock
175
self._lockmode = mode
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def _need_readlock(self):
179
if self._lockmode not in ['r', 'w']:
180
raise BzrError('need read lock on branch, only have %r' % self._lockmode)
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def _need_writelock(self):
183
if self._lockmode not in ['w']:
184
raise BzrError('need write lock on branch, only have %r' % self._lockmode)
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def abspath(self, name):
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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."""
264
return _relpath(self.base, path)
196
rp = os.path.realpath(path)
197
# FIXME: windows
198
if not rp.startswith(self.base):
199
from errors import NotBranchError
200
raise NotBranchError("path %r is not within branch %r" % (rp, self.base))
201
rp = rp[len(self.base):]
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rp = rp.lstrip(os.sep)
203
return rp
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
269
if isinstance(file_or_path, basestring):
208
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 _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"
308
"Do not change any files in this directory.\n")
244
"Do not change any files in this directory.")
309
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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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249
'pending-merged-patches', 'branch-name',
314
'branch-lock',
315
'pending-merges'):
250
'branch-lock'):
316
251
self.controlfile(f, 'w').write('')
317
252
mutter('created control directory in ' + self.base)
318
319
pack_xml(Inventory(gen_root_id()), self.controlfile('inventory','w'))
253
Inventory().write_xml(self.controlfile('inventory','w'))
320
254
321
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322
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def _check_format(self):
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271
['use a different bzr version',
338
272
'or remove the .bzr directory and "bzr init" again'])
339
273
340
def get_root_id(self):
341
"""Return the id of this branches root"""
342
inv = self.read_working_inventory()
343
return inv.root.file_id
344
345
def set_root_id(self, file_id):
346
inv = self.read_working_inventory()
347
orig_root_id = inv.root.file_id
348
del inv._byid[inv.root.file_id]
349
inv.root.file_id = file_id
350
inv._byid[inv.root.file_id] = inv.root
351
for fid in inv:
352
entry = inv[fid]
353
if entry.parent_id in (None, orig_root_id):
354
entry.parent_id = inv.root.file_id
355
self._write_inventory(inv)
356
274
357
275
def read_working_inventory(self):
358
276
"""Read the working inventory."""
359
from bzrlib.inventory import Inventory
360
from bzrlib.xml import unpack_xml
361
from time import time
362
before = time()
363
self.lock_read()
364
try:
365
# ElementTree does its own conversion from UTF-8, so open in
366
# binary.
367
inv = unpack_xml(Inventory,
368
self.controlfile('inventory', 'rb'))
369
mutter("loaded inventory of %d items in %f"
370
% (len(inv), time() - before))
371
return inv
372
finally:
373
self.unlock()
374
277
self._need_readlock()
278
before = time.time()
279
# ElementTree does its own conversion from UTF-8, so open in
280
# binary.
281
inv = Inventory.read_xml(self.controlfile('inventory', 'rb'))
282
mutter("loaded inventory of %d items in %f"
283
% (len(inv), time.time() - before))
284
return inv
285
375
286
376
287
def _write_inventory(self, inv):
377
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"""Update the working inventory.
379
290
That is to say, the inventory describing changes underway, that
380
291
will be committed to the next revision.
381
292
"""
382
from bzrlib.atomicfile import AtomicFile
383
from bzrlib.xml import pack_xml
384
385
self.lock_write()
386
try:
387
f = AtomicFile(self.controlfilename('inventory'), 'wb')
388
try:
389
pack_xml(inv, f)
390
f.commit()
391
finally:
392
f.close()
393
finally:
394
self.unlock()
395
293
self._need_writelock()
294
## TODO: factor out to atomicfile? is rename safe on windows?
295
## TODO: Maybe some kind of clean/dirty marker on inventory?
296
tmpfname = self.controlfilename('inventory.tmp')
297
tmpf = file(tmpfname, 'wb')
298
inv.write_xml(tmpf)
299
tmpf.close()
300
inv_fname = self.controlfilename('inventory')
301
if sys.platform == 'win32':
302
os.remove(inv_fname)
303
os.rename(tmpfname, inv_fname)
396
304
mutter('wrote working inventory')
397
305
398
306
399
307
inventory = property(read_working_inventory, _write_inventory, None,
400
308
"""Inventory for the working copy.""")
408
316
This puts the files in the Added state, so that they will be
409
317
recorded by the next commit.
410
318
411
files
412
List of paths to add, relative to the base of the tree.
413
414
ids
415
If set, use these instead of automatically generated ids.
416
Must be the same length as the list of files, but may
417
contain None for ids that are to be autogenerated.
418
419
319
TODO: Perhaps have an option to add the ids even if the files do
420
not (yet) exist.
320
not (yet) exist.
421
321
422
322
TODO: Perhaps return the ids of the files? But then again it
423
is easy to retrieve them if they're needed.
323
is easy to retrieve them if they're needed.
324
325
TODO: Option to specify file id.
424
326
425
327
TODO: Adding a directory should optionally recurse down and
426
add all non-ignored children. Perhaps do that in a
427
higher-level method.
328
add all non-ignored children. Perhaps do that in a
329
higher-level method.
428
330
"""
331
self._need_writelock()
332
429
333
# TODO: Re-adding a file that is removed in the working copy
430
334
# should probably put it back with the previous ID.
431
if isinstance(files, basestring):
432
assert(ids is None or isinstance(ids, basestring))
335
if isinstance(files, types.StringTypes):
336
assert(ids is None or isinstance(ids, types.StringTypes))
433
337
files = [files]
434
338
if ids is not None:
435
339
ids = [ids]
438
342
ids = [None] * len(files)
439
343
else:
440
344
assert(len(ids) == len(files))
441
442
self.lock_write()
443
try:
444
inv = self.read_working_inventory()
445
for f,file_id in zip(files, ids):
446
if is_control_file(f):
447
raise BzrError("cannot add control file %s" % quotefn(f))
448
449
fp = splitpath(f)
450
451
if len(fp) == 0:
452
raise BzrError("cannot add top-level %r" % f)
453
454
fullpath = os.path.normpath(self.abspath(f))
455
456
try:
457
kind = file_kind(fullpath)
458
except OSError:
459
# maybe something better?
460
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
461
462
if kind != 'file' and kind != 'directory':
463
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
464
465
if file_id is None:
466
file_id = gen_file_id(f)
467
inv.add_path(f, kind=kind, file_id=file_id)
468
469
if verbose:
470
print 'added', quotefn(f)
471
472
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
473
474
self._write_inventory(inv)
475
finally:
476
self.unlock()
477
345
346
inv = self.read_working_inventory()
347
for f,file_id in zip(files, ids):
348
if is_control_file(f):
349
raise BzrError("cannot add control file %s" % quotefn(f))
350
351
fp = splitpath(f)
352
353
if len(fp) == 0:
354
raise BzrError("cannot add top-level %r" % f)
355
356
fullpath = os.path.normpath(self.abspath(f))
357
358
try:
359
kind = file_kind(fullpath)
360
except OSError:
361
# maybe something better?
362
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
363
364
if kind != 'file' and kind != 'directory':
365
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
366
367
if file_id is None:
368
file_id = gen_file_id(f)
369
inv.add_path(f, kind=kind, file_id=file_id)
370
371
if verbose:
372
show_status('A', kind, quotefn(f))
373
374
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
375
376
self._write_inventory(inv)
377
478
378
479
379
def print_file(self, file, revno):
480
380
"""Print `file` to stdout."""
481
self.lock_read()
482
try:
483
tree = self.revision_tree(self.lookup_revision(revno))
484
# use inventory as it was in that revision
485
file_id = tree.inventory.path2id(file)
486
if not file_id:
487
raise BzrError("%r is not present in revision %s" % (file, revno))
488
tree.print_file(file_id)
489
finally:
490
self.unlock()
491
381
self._need_readlock()
382
tree = self.revision_tree(self.lookup_revision(revno))
383
# use inventory as it was in that revision
384
file_id = tree.inventory.path2id(file)
385
if not file_id:
386
raise BzrError("%r is not present in revision %d" % (file, revno))
387
tree.print_file(file_id)
388
492
389
493
390
def remove(self, files, verbose=False):
494
391
"""Mark nominated files for removal from the inventory.
506
403
"""
507
404
## TODO: Normalize names
508
405
## TODO: Remove nested loops; better scalability
509
if isinstance(files, basestring):
406
self._need_writelock()
407
408
if isinstance(files, types.StringTypes):
510
409
files = [files]
511
512
self.lock_write()
513
514
try:
515
tree = self.working_tree()
516
inv = tree.inventory
517
518
# do this before any modifications
519
for f in files:
520
fid = inv.path2id(f)
521
if not fid:
522
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
523
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
524
if verbose:
525
# having remove it, it must be either ignored or unknown
526
if tree.is_ignored(f):
527
new_status = 'I'
528
else:
529
new_status = '?'
530
show_status(new_status, inv[fid].kind, quotefn(f))
531
del inv[fid]
532
533
self._write_inventory(inv)
534
finally:
535
self.unlock()
536
537
538
# FIXME: this doesn't need to be a branch method
410
411
tree = self.working_tree()
412
inv = tree.inventory
413
414
# do this before any modifications
415
for f in files:
416
fid = inv.path2id(f)
417
if not fid:
418
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
419
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
420
if verbose:
421
# having remove it, it must be either ignored or unknown
422
if tree.is_ignored(f):
423
new_status = 'I'
424
else:
425
new_status = '?'
426
show_status(new_status, inv[fid].kind, quotefn(f))
427
del inv[fid]
428
429
self._write_inventory(inv)
430
539
431
def set_inventory(self, new_inventory_list):
540
from bzrlib.inventory import Inventory, InventoryEntry
541
inv = Inventory(self.get_root_id())
432
inv = Inventory()
542
433
for path, file_id, parent, kind in new_inventory_list:
543
434
name = os.path.basename(path)
544
435
if name == "":
566
457
return self.working_tree().unknowns()
567
458
568
459
569
def append_revision(self, *revision_ids):
570
from bzrlib.atomicfile import AtomicFile
571
572
for revision_id in revision_ids:
573
mutter("add {%s} to revision-history" % revision_id)
574
460
def append_revision(self, revision_id):
461
mutter("add {%s} to revision-history" % revision_id)
575
462
rev_history = self.revision_history()
576
rev_history.extend(revision_ids)
577
578
f = AtomicFile(self.controlfilename('revision-history'))
579
try:
580
for rev_id in rev_history:
581
print >>f, rev_id
582
f.commit()
583
finally:
584
f.close()
585
586
587
def get_revision_xml(self, revision_id):
588
"""Return XML file object for revision object."""
589
if not revision_id or not isinstance(revision_id, basestring):
590
raise InvalidRevisionId(revision_id)
591
592
self.lock_read()
593
try:
594
try:
595
return self.revision_store[revision_id]
596
except IndexError:
597
raise bzrlib.errors.NoSuchRevision(revision_id)
598
finally:
599
self.unlock()
463
464
tmprhname = self.controlfilename('revision-history.tmp')
465
rhname = self.controlfilename('revision-history')
466
467
f = file(tmprhname, 'wt')
468
rev_history.append(revision_id)
469
f.write('\n'.join(rev_history))
470
f.write('\n')
471
f.close()
472
473
if sys.platform == 'win32':
474
os.remove(rhname)
475
os.rename(tmprhname, rhname)
476
600
477
601
478
602
479
def get_revision(self, revision_id):
603
480
"""Return the Revision object for a named revision"""
604
xml_file = self.get_revision_xml(revision_id)
605
606
try:
607
r = unpack_xml(Revision, xml_file)
608
except SyntaxError, e:
609
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
610
[revision_id,
611
str(e)])
612
481
self._need_readlock()
482
r = Revision.read_xml(self.revision_store[revision_id])
613
483
assert r.revision_id == revision_id
614
484
return r
615
485
616
486
617
def get_revision_delta(self, revno):
618
"""Return the delta for one revision.
619
620
The delta is relative to its mainline predecessor, or the
621
empty tree for revision 1.
622
"""
623
assert isinstance(revno, int)
624
rh = self.revision_history()
625
if not (1 <= revno <= len(rh)):
626
raise InvalidRevisionNumber(revno)
627
628
# revno is 1-based; list is 0-based
629
630
new_tree = self.revision_tree(rh[revno-1])
631
if revno == 1:
632
old_tree = EmptyTree()
633
else:
634
old_tree = self.revision_tree(rh[revno-2])
635
636
return compare_trees(old_tree, new_tree)
637
638
639
640
def get_revision_sha1(self, revision_id):
641
"""Hash the stored value of a revision, and return it."""
642
# In the future, revision entries will be signed. At that
643
# point, it is probably best *not* to include the signature
644
# in the revision hash. Because that lets you re-sign
645
# the revision, (add signatures/remove signatures) and still
646
# have all hash pointers stay consistent.
647
# But for now, just hash the contents.
648
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
649
650
651
487
def get_inventory(self, inventory_id):
652
488
"""Get Inventory object by hash.
653
489
654
490
TODO: Perhaps for this and similar methods, take a revision
655
491
parameter which can be either an integer revno or a
656
492
string hash."""
657
from bzrlib.inventory import Inventory
658
from bzrlib.xml import unpack_xml
659
660
return unpack_xml(Inventory, self.inventory_store[inventory_id])
661
662
663
def get_inventory_sha1(self, inventory_id):
664
"""Return the sha1 hash of the inventory entry
665
"""
666
return sha_file(self.inventory_store[inventory_id])
493
self._need_readlock()
494
i = Inventory.read_xml(self.inventory_store[inventory_id])
495
return i
667
496
668
497
669
498
def get_revision_inventory(self, revision_id):
670
499
"""Return inventory of a past revision."""
671
# bzr 0.0.6 imposes the constraint that the inventory_id
672
# must be the same as its revision, so this is trivial.
500
self._need_readlock()
673
501
if revision_id == None:
674
from bzrlib.inventory import Inventory
675
return Inventory(self.get_root_id())
502
return Inventory()
676
503
else:
677
return self.get_inventory(revision_id)
504
return self.get_inventory(self.get_revision(revision_id).inventory_id)
678
505
679
506
680
507
def revision_history(self):
683
510
>>> ScratchBranch().revision_history()
684
511
[]
685
512
"""
686
self.lock_read()
687
try:
688
return [l.rstrip('\r\n') for l in
689
self.controlfile('revision-history', 'r').readlines()]
690
finally:
691
self.unlock()
692
693
694
def common_ancestor(self, other, self_revno=None, other_revno=None):
695
"""
696
>>> import commit
697
>>> sb = ScratchBranch(files=['foo', 'foo~'])
698
>>> sb.common_ancestor(sb) == (None, None)
699
True
700
>>> commit.commit(sb, "Committing first revision", verbose=False)
701
>>> sb.common_ancestor(sb)[0]
702
1
703
>>> clone = sb.clone()
704
>>> commit.commit(sb, "Committing second revision", verbose=False)
705
>>> sb.common_ancestor(sb)[0]
706
2
707
>>> sb.common_ancestor(clone)[0]
708
1
709
>>> commit.commit(clone, "Committing divergent second revision",
710
... verbose=False)
711
>>> sb.common_ancestor(clone)[0]
712
1
713
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
714
True
715
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
716
True
717
>>> clone2 = sb.clone()
718
>>> sb.common_ancestor(clone2)[0]
719
2
720
>>> sb.common_ancestor(clone2, self_revno=1)[0]
721
1
722
>>> sb.common_ancestor(clone2, other_revno=1)[0]
723
1
724
"""
725
my_history = self.revision_history()
726
other_history = other.revision_history()
727
if self_revno is None:
728
self_revno = len(my_history)
729
if other_revno is None:
730
other_revno = len(other_history)
731
indices = range(min((self_revno, other_revno)))
732
indices.reverse()
733
for r in indices:
734
if my_history[r] == other_history[r]:
735
return r+1, my_history[r]
736
return None, None
513
self._need_readlock()
514
return [l.rstrip('\r\n') for l in self.controlfile('revision-history', 'r').readlines()]
515
516
517
def enum_history(self, direction):
518
"""Return (revno, revision_id) for history of branch.
519
520
direction
521
'forward' is from earliest to latest
522
'reverse' is from latest to earliest
523
"""
524
rh = self.revision_history()
525
if direction == 'forward':
526
i = 1
527
for rid in rh:
528
yield i, rid
529
i += 1
530
elif direction == 'reverse':
531
i = len(rh)
532
while i > 0:
533
yield i, rh[i-1]
534
i -= 1
535
else:
536
raise ValueError('invalid history direction', direction)
737
537
738
538
739
539
def revno(self):
755
555
return None
756
556
757
557
758
def missing_revisions(self, other, stop_revision=None):
759
"""
760
If self and other have not diverged, return a list of the revisions
761
present in other, but missing from self.
762
763
>>> from bzrlib.commit import commit
764
>>> bzrlib.trace.silent = True
765
>>> br1 = ScratchBranch()
766
>>> br2 = ScratchBranch()
767
>>> br1.missing_revisions(br2)
768
[]
769
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
770
>>> br1.missing_revisions(br2)
771
[u'REVISION-ID-1']
772
>>> br2.missing_revisions(br1)
773
[]
774
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
775
>>> br1.missing_revisions(br2)
776
[]
777
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
778
>>> br1.missing_revisions(br2)
779
[u'REVISION-ID-2A']
780
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
781
>>> br1.missing_revisions(br2)
782
Traceback (most recent call last):
783
DivergedBranches: These branches have diverged.
784
"""
785
self_history = self.revision_history()
786
self_len = len(self_history)
787
other_history = other.revision_history()
788
other_len = len(other_history)
789
common_index = min(self_len, other_len) -1
790
if common_index >= 0 and \
791
self_history[common_index] != other_history[common_index]:
792
raise DivergedBranches(self, other)
793
794
if stop_revision is None:
795
stop_revision = other_len
796
elif stop_revision > other_len:
797
raise NoSuchRevision(self, stop_revision)
798
799
return other_history[self_len:stop_revision]
800
801
802
def update_revisions(self, other, stop_revision=None):
803
"""Pull in all new revisions from other branch.
804
805
>>> from bzrlib.commit import commit
806
>>> bzrlib.trace.silent = True
807
>>> br1 = ScratchBranch(files=['foo', 'bar'])
808
>>> br1.add('foo')
809
>>> br1.add('bar')
810
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
811
>>> br2 = ScratchBranch()
812
>>> br2.update_revisions(br1)
813
Added 2 texts.
814
Added 1 inventories.
815
Added 1 revisions.
816
>>> br2.revision_history()
817
[u'REVISION-ID-1']
818
>>> br2.update_revisions(br1)
819
Added 0 texts.
820
Added 0 inventories.
821
Added 0 revisions.
822
>>> br1.text_store.total_size() == br2.text_store.total_size()
823
True
824
"""
825
from bzrlib.progress import ProgressBar
826
827
pb = ProgressBar()
828
829
pb.update('comparing histories')
830
revision_ids = self.missing_revisions(other, stop_revision)
831
832
if hasattr(other.revision_store, "prefetch"):
833
other.revision_store.prefetch(revision_ids)
834
if hasattr(other.inventory_store, "prefetch"):
835
inventory_ids = [other.get_revision(r).inventory_id
836
for r in revision_ids]
837
other.inventory_store.prefetch(inventory_ids)
838
839
revisions = []
840
needed_texts = set()
841
i = 0
842
for rev_id in revision_ids:
843
i += 1
844
pb.update('fetching revision', i, len(revision_ids))
845
rev = other.get_revision(rev_id)
846
revisions.append(rev)
847
inv = other.get_inventory(str(rev.inventory_id))
848
for key, entry in inv.iter_entries():
849
if entry.text_id is None:
850
continue
851
if entry.text_id not in self.text_store:
852
needed_texts.add(entry.text_id)
853
854
pb.clear()
855
856
count = self.text_store.copy_multi(other.text_store, needed_texts)
857
print "Added %d texts." % count
858
inventory_ids = [ f.inventory_id for f in revisions ]
859
count = self.inventory_store.copy_multi(other.inventory_store,
860
inventory_ids)
861
print "Added %d inventories." % count
862
revision_ids = [ f.revision_id for f in revisions]
863
count = self.revision_store.copy_multi(other.revision_store,
864
revision_ids)
865
for revision_id in revision_ids:
866
self.append_revision(revision_id)
867
print "Added %d revisions." % count
868
869
870
558
def commit(self, *args, **kw):
559
"""Deprecated"""
871
560
from bzrlib.commit import commit
872
561
commit(self, *args, **kw)
873
562
874
563
875
def lookup_revision(self, revision):
876
"""Return the revision identifier for a given revision information."""
877
revno, info = self.get_revision_info(revision)
878
return info
879
880
def get_revision_info(self, revision):
881
"""Return (revno, revision id) for revision identifier.
882
883
revision can be an integer, in which case it is assumed to be revno (though
884
this will translate negative values into positive ones)
885
revision can also be a string, in which case it is parsed for something like
886
'date:' or 'revid:' etc.
887
"""
888
if revision is None:
889
return 0, None
890
revno = None
891
try:# Convert to int if possible
892
revision = int(revision)
893
except ValueError:
894
pass
895
revs = self.revision_history()
896
if isinstance(revision, int):
897
if revision == 0:
898
return 0, None
899
# Mabye we should do this first, but we don't need it if revision == 0
900
if revision < 0:
901
revno = len(revs) + revision + 1
902
else:
903
revno = revision
904
elif isinstance(revision, basestring):
905
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
906
if revision.startswith(prefix):
907
revno = func(self, revs, revision)
908
break
909
else:
910
raise BzrError('No namespace registered for string: %r' % revision)
911
912
if revno is None or revno <= 0 or revno > len(revs):
913
raise BzrError("no such revision %s" % revision)
914
return revno, revs[revno-1]
915
916
def _namespace_revno(self, revs, revision):
917
"""Lookup a revision by revision number"""
918
assert revision.startswith('revno:')
919
try:
920
return int(revision[6:])
921
except ValueError:
922
return None
923
REVISION_NAMESPACES['revno:'] = _namespace_revno
924
925
def _namespace_revid(self, revs, revision):
926
assert revision.startswith('revid:')
927
try:
928
return revs.index(revision[6:]) + 1
929
except ValueError:
930
return None
931
REVISION_NAMESPACES['revid:'] = _namespace_revid
932
933
def _namespace_last(self, revs, revision):
934
assert revision.startswith('last:')
935
try:
936
offset = int(revision[5:])
937
except ValueError:
938
return None
939
else:
940
if offset <= 0:
941
raise BzrError('You must supply a positive value for --revision last:XXX')
942
return len(revs) - offset + 1
943
REVISION_NAMESPACES['last:'] = _namespace_last
944
945
def _namespace_tag(self, revs, revision):
946
assert revision.startswith('tag:')
947
raise BzrError('tag: namespace registered, but not implemented.')
948
REVISION_NAMESPACES['tag:'] = _namespace_tag
949
950
def _namespace_date(self, revs, revision):
951
assert revision.startswith('date:')
952
import datetime
953
# Spec for date revisions:
954
# date:value
955
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
956
# it can also start with a '+/-/='. '+' says match the first
957
# entry after the given date. '-' is match the first entry before the date
958
# '=' is match the first entry after, but still on the given date.
959
#
960
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
961
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
962
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
963
# May 13th, 2005 at 0:00
964
#
965
# So the proper way of saying 'give me all entries for today' is:
966
# -r {date:+today}:{date:-tomorrow}
967
# The default is '=' when not supplied
968
val = revision[5:]
969
match_style = '='
970
if val[:1] in ('+', '-', '='):
971
match_style = val[:1]
972
val = val[1:]
973
974
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
975
if val.lower() == 'yesterday':
976
dt = today - datetime.timedelta(days=1)
977
elif val.lower() == 'today':
978
dt = today
979
elif val.lower() == 'tomorrow':
980
dt = today + datetime.timedelta(days=1)
981
else:
982
import re
983
# This should be done outside the function to avoid recompiling it.
984
_date_re = re.compile(
985
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
986
r'(,|T)?\s*'
987
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
988
)
989
m = _date_re.match(val)
990
if not m or (not m.group('date') and not m.group('time')):
991
raise BzrError('Invalid revision date %r' % revision)
992
993
if m.group('date'):
994
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
995
else:
996
year, month, day = today.year, today.month, today.day
997
if m.group('time'):
998
hour = int(m.group('hour'))
999
minute = int(m.group('minute'))
1000
if m.group('second'):
1001
second = int(m.group('second'))
1002
else:
1003
second = 0
1004
else:
1005
hour, minute, second = 0,0,0
1006
1007
dt = datetime.datetime(year=year, month=month, day=day,
1008
hour=hour, minute=minute, second=second)
1009
first = dt
1010
last = None
1011
reversed = False
1012
if match_style == '-':
1013
reversed = True
1014
elif match_style == '=':
1015
last = dt + datetime.timedelta(days=1)
1016
1017
if reversed:
1018
for i in range(len(revs)-1, -1, -1):
1019
r = self.get_revision(revs[i])
1020
# TODO: Handle timezone.
1021
dt = datetime.datetime.fromtimestamp(r.timestamp)
1022
if first >= dt and (last is None or dt >= last):
1023
return i+1
1024
else:
1025
for i in range(len(revs)):
1026
r = self.get_revision(revs[i])
1027
# TODO: Handle timezone.
1028
dt = datetime.datetime.fromtimestamp(r.timestamp)
1029
if first <= dt and (last is None or dt <= last):
1030
return i+1
1031
REVISION_NAMESPACES['date:'] = _namespace_date
564
def lookup_revision(self, revno):
565
"""Return revision hash for revision number."""
566
if revno == 0:
567
return None
568
569
try:
570
# list is 0-based; revisions are 1-based
571
return self.revision_history()[revno-1]
572
except IndexError:
573
raise BzrError("no such revision %s" % revno)
574
1032
575
1033
576
def revision_tree(self, revision_id):
1034
577
"""Return Tree for a revision on this branch.
1037
580
an `EmptyTree` is returned."""
1038
581
# TODO: refactor this to use an existing revision object
1039
582
# so we don't need to read it in twice.
583
self._need_readlock()
1040
584
if revision_id == None:
1041
585
return EmptyTree()
1042
586
else:
1068
612
1069
613
This can change the directory or the filename or both.
1070
614
"""
1071
self.lock_write()
615
self._need_writelock()
616
tree = self.working_tree()
617
inv = tree.inventory
618
if not tree.has_filename(from_rel):
619
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
620
if tree.has_filename(to_rel):
621
raise BzrError("can't rename: new working file %r already exists" % to_rel)
622
623
file_id = inv.path2id(from_rel)
624
if file_id == None:
625
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
626
627
if inv.path2id(to_rel):
628
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
629
630
to_dir, to_tail = os.path.split(to_rel)
631
to_dir_id = inv.path2id(to_dir)
632
if to_dir_id == None and to_dir != '':
633
raise BzrError("can't determine destination directory id for %r" % to_dir)
634
635
mutter("rename_one:")
636
mutter(" file_id {%s}" % file_id)
637
mutter(" from_rel %r" % from_rel)
638
mutter(" to_rel %r" % to_rel)
639
mutter(" to_dir %r" % to_dir)
640
mutter(" to_dir_id {%s}" % to_dir_id)
641
642
inv.rename(file_id, to_dir_id, to_tail)
643
644
print "%s => %s" % (from_rel, to_rel)
645
646
from_abs = self.abspath(from_rel)
647
to_abs = self.abspath(to_rel)
1072
648
try:
1073
tree = self.working_tree()
1074
inv = tree.inventory
1075
if not tree.has_filename(from_rel):
1076
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1077
if tree.has_filename(to_rel):
1078
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1079
1080
file_id = inv.path2id(from_rel)
1081
if file_id == None:
1082
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1083
1084
if inv.path2id(to_rel):
1085
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1086
1087
to_dir, to_tail = os.path.split(to_rel)
1088
to_dir_id = inv.path2id(to_dir)
1089
if to_dir_id == None and to_dir != '':
1090
raise BzrError("can't determine destination directory id for %r" % to_dir)
1091
1092
mutter("rename_one:")
1093
mutter(" file_id {%s}" % file_id)
1094
mutter(" from_rel %r" % from_rel)
1095
mutter(" to_rel %r" % to_rel)
1096
mutter(" to_dir %r" % to_dir)
1097
mutter(" to_dir_id {%s}" % to_dir_id)
1098
1099
inv.rename(file_id, to_dir_id, to_tail)
1100
1101
print "%s => %s" % (from_rel, to_rel)
1102
1103
from_abs = self.abspath(from_rel)
1104
to_abs = self.abspath(to_rel)
1105
try:
1106
os.rename(from_abs, to_abs)
1107
except OSError, e:
1108
raise BzrError("failed to rename %r to %r: %s"
1109
% (from_abs, to_abs, e[1]),
1110
["rename rolled back"])
1111
1112
self._write_inventory(inv)
1113
finally:
1114
self.unlock()
649
os.rename(from_abs, to_abs)
650
except OSError, e:
651
raise BzrError("failed to rename %r to %r: %s"
652
% (from_abs, to_abs, e[1]),
653
["rename rolled back"])
654
655
self._write_inventory(inv)
656
1115
657
1116
658
1117
659
def move(self, from_paths, to_name):
1125
667
Note that to_name is only the last component of the new name;
1126
668
this doesn't change the directory.
1127
669
"""
1128
self.lock_write()
1129
try:
1130
## TODO: Option to move IDs only
1131
assert not isinstance(from_paths, basestring)
1132
tree = self.working_tree()
1133
inv = tree.inventory
1134
to_abs = self.abspath(to_name)
1135
if not isdir(to_abs):
1136
raise BzrError("destination %r is not a directory" % to_abs)
1137
if not tree.has_filename(to_name):
1138
raise BzrError("destination %r not in working directory" % to_abs)
1139
to_dir_id = inv.path2id(to_name)
1140
if to_dir_id == None and to_name != '':
1141
raise BzrError("destination %r is not a versioned directory" % to_name)
1142
to_dir_ie = inv[to_dir_id]
1143
if to_dir_ie.kind not in ('directory', 'root_directory'):
1144
raise BzrError("destination %r is not a directory" % to_abs)
1145
1146
to_idpath = inv.get_idpath(to_dir_id)
1147
1148
for f in from_paths:
1149
if not tree.has_filename(f):
1150
raise BzrError("%r does not exist in working tree" % f)
1151
f_id = inv.path2id(f)
1152
if f_id == None:
1153
raise BzrError("%r is not versioned" % f)
1154
name_tail = splitpath(f)[-1]
1155
dest_path = appendpath(to_name, name_tail)
1156
if tree.has_filename(dest_path):
1157
raise BzrError("destination %r already exists" % dest_path)
1158
if f_id in to_idpath:
1159
raise BzrError("can't move %r to a subdirectory of itself" % f)
1160
1161
# OK, so there's a race here, it's possible that someone will
1162
# create a file in this interval and then the rename might be
1163
# left half-done. But we should have caught most problems.
1164
1165
for f in from_paths:
1166
name_tail = splitpath(f)[-1]
1167
dest_path = appendpath(to_name, name_tail)
1168
print "%s => %s" % (f, dest_path)
1169
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1170
try:
1171
os.rename(self.abspath(f), self.abspath(dest_path))
1172
except OSError, e:
1173
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1174
["rename rolled back"])
1175
1176
self._write_inventory(inv)
1177
finally:
1178
self.unlock()
1179
1180
1181
def revert(self, filenames, old_tree=None, backups=True):
1182
"""Restore selected files to the versions from a previous tree.
1183
1184
backups
1185
If true (default) backups are made of files before
1186
they're renamed.
1187
"""
1188
from bzrlib.errors import NotVersionedError, BzrError
1189
from bzrlib.atomicfile import AtomicFile
1190
from bzrlib.osutils import backup_file
1191
1192
inv = self.read_working_inventory()
1193
if old_tree is None:
1194
old_tree = self.basis_tree()
1195
old_inv = old_tree.inventory
1196
1197
nids = []
1198
for fn in filenames:
1199
file_id = inv.path2id(fn)
1200
if not file_id:
1201
raise NotVersionedError("not a versioned file", fn)
1202
if not old_inv.has_id(file_id):
1203
raise BzrError("file not present in old tree", fn, file_id)
1204
nids.append((fn, file_id))
1205
1206
# TODO: Rename back if it was previously at a different location
1207
1208
# TODO: If given a directory, restore the entire contents from
1209
# the previous version.
1210
1211
# TODO: Make a backup to a temporary file.
1212
1213
# TODO: If the file previously didn't exist, delete it?
1214
for fn, file_id in nids:
1215
backup_file(fn)
1216
1217
f = AtomicFile(fn, 'wb')
1218
try:
1219
f.write(old_tree.get_file(file_id).read())
1220
f.commit()
1221
finally:
1222
f.close()
1223
1224
1225
def pending_merges(self):
1226
"""Return a list of pending merges.
1227
1228
These are revisions that have been merged into the working
1229
directory but not yet committed.
1230
"""
1231
cfn = self.controlfilename('pending-merges')
1232
if not os.path.exists(cfn):
1233
return []
1234
p = []
1235
for l in self.controlfile('pending-merges', 'r').readlines():
1236
p.append(l.rstrip('\n'))
1237
return p
1238
1239
1240
def add_pending_merge(self, revision_id):
1241
from bzrlib.revision import validate_revision_id
1242
1243
validate_revision_id(revision_id)
1244
1245
p = self.pending_merges()
1246
if revision_id in p:
1247
return
1248
p.append(revision_id)
1249
self.set_pending_merges(p)
1250
1251
1252
def set_pending_merges(self, rev_list):
1253
from bzrlib.atomicfile import AtomicFile
1254
self.lock_write()
1255
try:
1256
f = AtomicFile(self.controlfilename('pending-merges'))
1257
try:
1258
for l in rev_list:
1259
print >>f, l
1260
f.commit()
1261
finally:
1262
f.close()
1263
finally:
1264
self.unlock()
670
self._need_writelock()
671
## TODO: Option to move IDs only
672
assert not isinstance(from_paths, basestring)
673
tree = self.working_tree()
674
inv = tree.inventory
675
to_abs = self.abspath(to_name)
676
if not isdir(to_abs):
677
raise BzrError("destination %r is not a directory" % to_abs)
678
if not tree.has_filename(to_name):
679
raise BzrError("destination %r not in working directory" % to_abs)
680
to_dir_id = inv.path2id(to_name)
681
if to_dir_id == None and to_name != '':
682
raise BzrError("destination %r is not a versioned directory" % to_name)
683
to_dir_ie = inv[to_dir_id]
684
if to_dir_ie.kind not in ('directory', 'root_directory'):
685
raise BzrError("destination %r is not a directory" % to_abs)
686
687
to_idpath = inv.get_idpath(to_dir_id)
688
689
for f in from_paths:
690
if not tree.has_filename(f):
691
raise BzrError("%r does not exist in working tree" % f)
692
f_id = inv.path2id(f)
693
if f_id == None:
694
raise BzrError("%r is not versioned" % f)
695
name_tail = splitpath(f)[-1]
696
dest_path = appendpath(to_name, name_tail)
697
if tree.has_filename(dest_path):
698
raise BzrError("destination %r already exists" % dest_path)
699
if f_id in to_idpath:
700
raise BzrError("can't move %r to a subdirectory of itself" % f)
701
702
# OK, so there's a race here, it's possible that someone will
703
# create a file in this interval and then the rename might be
704
# left half-done. But we should have caught most problems.
705
706
for f in from_paths:
707
name_tail = splitpath(f)[-1]
708
dest_path = appendpath(to_name, name_tail)
709
print "%s => %s" % (f, dest_path)
710
inv.rename(inv.path2id(f), to_dir_id, name_tail)
711
try:
712
os.rename(self.abspath(f), self.abspath(dest_path))
713
except OSError, e:
714
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
715
["rename rolled back"])
716
717
self._write_inventory(inv)
718
1265
719
1266
720
1267
721
1276
730
>>> isdir(bd)
1277
731
False
1278
732
"""
1279
def __init__(self, files=[], dirs=[], base=None):
733
def __init__(self, files=[], dirs=[]):
1280
734
"""Make a test branch.
1281
735
1282
736
This creates a temporary directory and runs init-tree in it.
1283
737
1284
738
If any files are listed, they are created in the working copy.
1285
739
"""
1286
from tempfile import mkdtemp
1287
init = False
1288
if base is None:
1289
base = mkdtemp()
1290
init = True
1291
Branch.__init__(self, base, init=init)
740
Branch.__init__(self, tempfile.mkdtemp(), init=True)
1292
741
for d in dirs:
1293
742
os.mkdir(self.abspath(d))
1294
743
1296
745
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1297
746
1298
747
1299
def clone(self):
1300
"""
1301
>>> orig = ScratchBranch(files=["file1", "file2"])
1302
>>> clone = orig.clone()
1303
>>> os.path.samefile(orig.base, clone.base)
1304
False
1305
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1306
True
1307
"""
1308
from shutil import copytree
1309
from tempfile import mkdtemp
1310
base = mkdtemp()
1311
os.rmdir(base)
1312
copytree(self.base, base, symlinks=True)
1313
return ScratchBranch(base=base)
1314
1315
748
def __del__(self):
1316
749
self.destroy()
1317
750
1318
751
def destroy(self):
1319
752
"""Destroy the test branch, removing the scratch directory."""
1320
from shutil import rmtree
1321
753
try:
1322
if self.base:
1323
mutter("delete ScratchBranch %s" % self.base)
1324
rmtree(self.base)
754
mutter("delete ScratchBranch %s" % self.base)
755
shutil.rmtree(self.base)
1325
756
except OSError, e:
1326
757
# Work around for shutil.rmtree failing on Windows when
1327
758
# readonly files are encountered
1329
760
for root, dirs, files in os.walk(self.base, topdown=False):
1330
761
for name in files:
1331
762
os.chmod(os.path.join(root, name), 0700)
1332
rmtree(self.base)
763
shutil.rmtree(self.base)
1333
764
self.base = None
1334
765
1335
766
1360
791
cope with just randomness because running uuidgen every time is
1361
792
slow."""
1362
793
import re
1363
from binascii import hexlify
1364
from time import time
1365
794
1366
795
# get last component
1367
796
idx = name.rfind('/')
1379
808
name = re.sub(r'[^\w.]', '', name)
1380
809
1381
810
s = hexlify(rand_bytes(8))
1382
return '-'.join((name, compact_date(time()), s))
1383
1384
1385
def gen_root_id():
1386
"""Return a new tree-root file id."""
1387
return gen_file_id('TREE_ROOT')
1388
811
return '-'.join((name, compact_date(time.time()), s))
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0