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- Committer: Martin Pool
- Date: 2005-05-17 06:56:16 UTC
- Revision ID: mbp@sourcefrog.net-20050517065616-6f23381d6184a8aa
- add space for un-merged patches
- files added:
- bzrlib/statcache.py
- files removed:
- bzr-man.py
- bzrlib/selftest
- 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, os
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from sets import Set
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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, splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError
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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 bailout, 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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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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84
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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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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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class Branch:
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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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_lockmode = 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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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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bailout("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self._check_format()
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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:
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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()
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lockfile = os.open(self.controlfilename('branch-lock'), om)
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else:
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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:
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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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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
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self._lockmode = mode
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except ImportError:
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warning("please write a locking method for platform %r" % sys.platform)
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def unlock():
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self._lockmode = None
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self.unlock = unlock
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self._lockmode = mode
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def _need_readlock(self):
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if self._lockmode not in ['r', 'w']:
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raise BzrError('need read lock on branch, only have %r' % self._lockmode)
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def _need_writelock(self):
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if self._lockmode not in ['w']:
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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."""
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return _relpath(self.base, path)
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rp = os.path.realpath(path)
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# FIXME: windows
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if not rp.startswith(self.base):
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bailout("path %r is not within branch %r" % (rp, self.base))
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rp = rp[len(self.base):]
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rp = rp.lstrip(os.sep)
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return rp
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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if isinstance(file_or_path, basestring):
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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"
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"Do not change any files in this directory.\n")
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"Do not change any files in this directory.")
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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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'pending-merges'):
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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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pack_xml(Inventory(gen_root_id()), self.controlfile('inventory','w'))
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Inventory().write_xml(self.controlfile('inventory','w'))
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def _check_format(self):
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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 get_root_id(self):
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"""Return the id of this branches root"""
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inv = self.read_working_inventory()
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return inv.root.file_id
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def set_root_id(self, file_id):
342
inv = self.read_working_inventory()
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orig_root_id = inv.root.file_id
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del inv._byid[inv.root.file_id]
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inv.root.file_id = file_id
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inv._byid[inv.root.file_id] = inv.root
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for fid in inv:
348
entry = inv[fid]
349
if entry.parent_id in (None, orig_root_id):
350
entry.parent_id = inv.root.file_id
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self._write_inventory(inv)
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bailout('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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def read_working_inventory(self):
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"""Read the working inventory."""
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from bzrlib.inventory import Inventory
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from bzrlib.xml import unpack_xml
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from time import time
358
before = time()
359
self.lock_read()
360
try:
361
# ElementTree does its own conversion from UTF-8, so open in
362
# binary.
363
inv = unpack_xml(Inventory,
364
self.controlfile('inventory', 'rb'))
365
mutter("loaded inventory of %d items in %f"
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% (len(inv), time() - before))
367
return inv
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finally:
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self.unlock()
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self._need_readlock()
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before = time.time()
274
# ElementTree does its own conversion from UTF-8, so open in
275
# binary.
276
inv = Inventory.read_xml(self.controlfile('inventory', 'rb'))
277
mutter("loaded inventory of %d items in %f"
278
% (len(inv), time.time() - before))
279
return inv
280
371
281
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def _write_inventory(self, inv):
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"""Update the working inventory.
375
285
That is to say, the inventory describing changes underway, that
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will be committed to the next revision.
377
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"""
378
from bzrlib.atomicfile import AtomicFile
379
from bzrlib.xml import pack_xml
380
381
self.lock_write()
382
try:
383
f = AtomicFile(self.controlfilename('inventory'), 'wb')
384
try:
385
pack_xml(inv, f)
386
f.commit()
387
finally:
388
f.close()
389
finally:
390
self.unlock()
391
288
self._need_writelock()
289
## TODO: factor out to atomicfile? is rename safe on windows?
290
## TODO: Maybe some kind of clean/dirty marker on inventory?
291
tmpfname = self.controlfilename('inventory.tmp')
292
tmpf = file(tmpfname, 'wb')
293
inv.write_xml(tmpf)
294
tmpf.close()
295
inv_fname = self.controlfilename('inventory')
296
if sys.platform == 'win32':
297
os.remove(inv_fname)
298
os.rename(tmpfname, inv_fname)
392
299
mutter('wrote working inventory')
393
300
394
301
395
302
inventory = property(read_working_inventory, _write_inventory, None,
396
303
"""Inventory for the working copy.""")
404
311
This puts the files in the Added state, so that they will be
405
312
recorded by the next commit.
406
313
407
files
408
List of paths to add, relative to the base of the tree.
409
410
ids
411
If set, use these instead of automatically generated ids.
412
Must be the same length as the list of files, but may
413
contain None for ids that are to be autogenerated.
414
415
314
TODO: Perhaps have an option to add the ids even if the files do
416
not (yet) exist.
315
not (yet) exist.
417
316
418
317
TODO: Perhaps return the ids of the files? But then again it
419
is easy to retrieve them if they're needed.
318
is easy to retrieve them if they're needed.
319
320
TODO: Option to specify file id.
420
321
421
322
TODO: Adding a directory should optionally recurse down and
422
add all non-ignored children. Perhaps do that in a
423
higher-level method.
323
add all non-ignored children. Perhaps do that in a
324
higher-level method.
424
325
"""
425
from bzrlib.textui import show_status
326
self._need_writelock()
327
426
328
# TODO: Re-adding a file that is removed in the working copy
427
329
# should probably put it back with the previous ID.
428
if isinstance(files, basestring):
429
assert(ids is None or isinstance(ids, basestring))
330
if isinstance(files, types.StringTypes):
331
assert(ids is None or isinstance(ids, types.StringTypes))
430
332
files = [files]
431
333
if ids is not None:
432
334
ids = [ids]
435
337
ids = [None] * len(files)
436
338
else:
437
339
assert(len(ids) == len(files))
438
439
self.lock_write()
440
try:
441
inv = self.read_working_inventory()
442
for f,file_id in zip(files, ids):
443
if is_control_file(f):
444
raise BzrError("cannot add control file %s" % quotefn(f))
445
446
fp = splitpath(f)
447
448
if len(fp) == 0:
449
raise BzrError("cannot add top-level %r" % f)
450
451
fullpath = os.path.normpath(self.abspath(f))
452
453
try:
454
kind = file_kind(fullpath)
455
except OSError:
456
# maybe something better?
457
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
458
459
if kind != 'file' and kind != 'directory':
460
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
461
462
if file_id is None:
463
file_id = gen_file_id(f)
464
inv.add_path(f, kind=kind, file_id=file_id)
465
466
if verbose:
467
print 'added', quotefn(f)
468
469
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
470
471
self._write_inventory(inv)
472
finally:
473
self.unlock()
474
340
341
inv = self.read_working_inventory()
342
for f,file_id in zip(files, ids):
343
if is_control_file(f):
344
bailout("cannot add control file %s" % quotefn(f))
345
346
fp = splitpath(f)
347
348
if len(fp) == 0:
349
bailout("cannot add top-level %r" % f)
350
351
fullpath = os.path.normpath(self.abspath(f))
352
353
try:
354
kind = file_kind(fullpath)
355
except OSError:
356
# maybe something better?
357
bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
358
359
if kind != 'file' and kind != 'directory':
360
bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
361
362
if file_id is None:
363
file_id = gen_file_id(f)
364
inv.add_path(f, kind=kind, file_id=file_id)
365
366
if verbose:
367
show_status('A', kind, quotefn(f))
368
369
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
370
371
self._write_inventory(inv)
372
475
373
476
374
def print_file(self, file, revno):
477
375
"""Print `file` to stdout."""
478
self.lock_read()
479
try:
480
tree = self.revision_tree(self.lookup_revision(revno))
481
# use inventory as it was in that revision
482
file_id = tree.inventory.path2id(file)
483
if not file_id:
484
raise BzrError("%r is not present in revision %s" % (file, revno))
485
tree.print_file(file_id)
486
finally:
487
self.unlock()
488
376
self._need_readlock()
377
tree = self.revision_tree(self.lookup_revision(revno))
378
# use inventory as it was in that revision
379
file_id = tree.inventory.path2id(file)
380
if not file_id:
381
bailout("%r is not present in revision %d" % (file, revno))
382
tree.print_file(file_id)
383
489
384
490
385
def remove(self, files, verbose=False):
491
386
"""Mark nominated files for removal from the inventory.
501
396
is the opposite of add. Removing it is consistent with most
502
397
other tools. Maybe an option.
503
398
"""
504
from bzrlib.textui import show_status
505
399
## TODO: Normalize names
506
400
## TODO: Remove nested loops; better scalability
507
if isinstance(files, basestring):
401
self._need_writelock()
402
403
if isinstance(files, types.StringTypes):
508
404
files = [files]
509
510
self.lock_write()
511
512
try:
513
tree = self.working_tree()
514
inv = tree.inventory
515
516
# do this before any modifications
517
for f in files:
518
fid = inv.path2id(f)
519
if not fid:
520
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
521
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
522
if verbose:
523
# having remove it, it must be either ignored or unknown
524
if tree.is_ignored(f):
525
new_status = 'I'
526
else:
527
new_status = '?'
528
show_status(new_status, inv[fid].kind, quotefn(f))
529
del inv[fid]
530
531
self._write_inventory(inv)
532
finally:
533
self.unlock()
534
535
536
# FIXME: this doesn't need to be a branch method
405
406
tree = self.working_tree()
407
inv = tree.inventory
408
409
# do this before any modifications
410
for f in files:
411
fid = inv.path2id(f)
412
if not fid:
413
bailout("cannot remove unversioned file %s" % quotefn(f))
414
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
415
if verbose:
416
# having remove it, it must be either ignored or unknown
417
if tree.is_ignored(f):
418
new_status = 'I'
419
else:
420
new_status = '?'
421
show_status(new_status, inv[fid].kind, quotefn(f))
422
del inv[fid]
423
424
self._write_inventory(inv)
425
537
426
def set_inventory(self, new_inventory_list):
538
from bzrlib.inventory import Inventory, InventoryEntry
539
inv = Inventory(self.get_root_id())
427
inv = Inventory()
540
428
for path, file_id, parent, kind in new_inventory_list:
541
429
name = os.path.basename(path)
542
430
if name == "":
564
452
return self.working_tree().unknowns()
565
453
566
454
567
def append_revision(self, *revision_ids):
568
from bzrlib.atomicfile import AtomicFile
569
570
for revision_id in revision_ids:
571
mutter("add {%s} to revision-history" % revision_id)
572
455
def append_revision(self, revision_id):
456
mutter("add {%s} to revision-history" % revision_id)
573
457
rev_history = self.revision_history()
574
rev_history.extend(revision_ids)
575
576
f = AtomicFile(self.controlfilename('revision-history'))
577
try:
578
for rev_id in rev_history:
579
print >>f, rev_id
580
f.commit()
581
finally:
582
f.close()
458
459
tmprhname = self.controlfilename('revision-history.tmp')
460
rhname = self.controlfilename('revision-history')
461
462
f = file(tmprhname, 'wt')
463
rev_history.append(revision_id)
464
f.write('\n'.join(rev_history))
465
f.write('\n')
466
f.close()
467
468
if sys.platform == 'win32':
469
os.remove(rhname)
470
os.rename(tmprhname, rhname)
471
583
472
584
473
585
474
def get_revision(self, revision_id):
586
475
"""Return the Revision object for a named revision"""
587
from bzrlib.revision import Revision
588
from bzrlib.xml import unpack_xml
589
590
self.lock_read()
591
try:
592
if not revision_id or not isinstance(revision_id, basestring):
593
raise ValueError('invalid revision-id: %r' % revision_id)
594
r = unpack_xml(Revision, self.revision_store[revision_id])
595
finally:
596
self.unlock()
597
476
self._need_readlock()
477
r = Revision.read_xml(self.revision_store[revision_id])
598
478
assert r.revision_id == revision_id
599
479
return r
600
601
602
def get_revision_sha1(self, revision_id):
603
"""Hash the stored value of a revision, and return it."""
604
# In the future, revision entries will be signed. At that
605
# point, it is probably best *not* to include the signature
606
# in the revision hash. Because that lets you re-sign
607
# the revision, (add signatures/remove signatures) and still
608
# have all hash pointers stay consistent.
609
# But for now, just hash the contents.
610
return sha_file(self.revision_store[revision_id])
611
480
612
481
613
482
def get_inventory(self, inventory_id):
616
485
TODO: Perhaps for this and similar methods, take a revision
617
486
parameter which can be either an integer revno or a
618
487
string hash."""
619
from bzrlib.inventory import Inventory
620
from bzrlib.xml import unpack_xml
621
622
return unpack_xml(Inventory, self.inventory_store[inventory_id])
623
624
625
def get_inventory_sha1(self, inventory_id):
626
"""Return the sha1 hash of the inventory entry
627
"""
628
return sha_file(self.inventory_store[inventory_id])
488
self._need_readlock()
489
i = Inventory.read_xml(self.inventory_store[inventory_id])
490
return i
629
491
630
492
631
493
def get_revision_inventory(self, revision_id):
632
494
"""Return inventory of a past revision."""
633
# bzr 0.0.6 imposes the constraint that the inventory_id
634
# must be the same as its revision, so this is trivial.
495
self._need_readlock()
635
496
if revision_id == None:
636
from bzrlib.inventory import Inventory
637
return Inventory(self.get_root_id())
497
return Inventory()
638
498
else:
639
return self.get_inventory(revision_id)
499
return self.get_inventory(self.get_revision(revision_id).inventory_id)
640
500
641
501
642
502
def revision_history(self):
645
505
>>> ScratchBranch().revision_history()
646
506
[]
647
507
"""
648
self.lock_read()
649
try:
650
return [l.rstrip('\r\n') for l in
651
self.controlfile('revision-history', 'r').readlines()]
652
finally:
653
self.unlock()
654
655
656
def common_ancestor(self, other, self_revno=None, other_revno=None):
657
"""
658
>>> import commit
659
>>> sb = ScratchBranch(files=['foo', 'foo~'])
660
>>> sb.common_ancestor(sb) == (None, None)
661
True
662
>>> commit.commit(sb, "Committing first revision", verbose=False)
663
>>> sb.common_ancestor(sb)[0]
664
1
665
>>> clone = sb.clone()
666
>>> commit.commit(sb, "Committing second revision", verbose=False)
667
>>> sb.common_ancestor(sb)[0]
668
2
669
>>> sb.common_ancestor(clone)[0]
670
1
671
>>> commit.commit(clone, "Committing divergent second revision",
672
... verbose=False)
673
>>> sb.common_ancestor(clone)[0]
674
1
675
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
676
True
677
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
678
True
679
>>> clone2 = sb.clone()
680
>>> sb.common_ancestor(clone2)[0]
681
2
682
>>> sb.common_ancestor(clone2, self_revno=1)[0]
683
1
684
>>> sb.common_ancestor(clone2, other_revno=1)[0]
685
1
686
"""
687
my_history = self.revision_history()
688
other_history = other.revision_history()
689
if self_revno is None:
690
self_revno = len(my_history)
691
if other_revno is None:
692
other_revno = len(other_history)
693
indices = range(min((self_revno, other_revno)))
694
indices.reverse()
695
for r in indices:
696
if my_history[r] == other_history[r]:
697
return r+1, my_history[r]
698
return None, None
508
self._need_readlock()
509
return [l.rstrip('\r\n') for l in self.controlfile('revision-history', 'r').readlines()]
510
699
511
700
512
def enum_history(self, direction):
701
513
"""Return (revno, revision_id) for history of branch.
716
528
yield i, rh[i-1]
717
529
i -= 1
718
530
else:
719
raise ValueError('invalid history direction', direction)
531
raise BzrError('invalid history direction %r' % direction)
720
532
721
533
722
534
def revno(self):
738
550
return None
739
551
740
552
741
def missing_revisions(self, other, stop_revision=None):
742
"""
743
If self and other have not diverged, return a list of the revisions
744
present in other, but missing from self.
745
746
>>> from bzrlib.commit import commit
747
>>> bzrlib.trace.silent = True
748
>>> br1 = ScratchBranch()
749
>>> br2 = ScratchBranch()
750
>>> br1.missing_revisions(br2)
751
[]
752
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
753
>>> br1.missing_revisions(br2)
754
[u'REVISION-ID-1']
755
>>> br2.missing_revisions(br1)
756
[]
757
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
758
>>> br1.missing_revisions(br2)
759
[]
760
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
761
>>> br1.missing_revisions(br2)
762
[u'REVISION-ID-2A']
763
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
764
>>> br1.missing_revisions(br2)
765
Traceback (most recent call last):
766
DivergedBranches: These branches have diverged.
767
"""
768
self_history = self.revision_history()
769
self_len = len(self_history)
770
other_history = other.revision_history()
771
other_len = len(other_history)
772
common_index = min(self_len, other_len) -1
773
if common_index >= 0 and \
774
self_history[common_index] != other_history[common_index]:
775
raise DivergedBranches(self, other)
776
777
if stop_revision is None:
778
stop_revision = other_len
779
elif stop_revision > other_len:
780
raise NoSuchRevision(self, stop_revision)
781
782
return other_history[self_len:stop_revision]
783
784
785
def update_revisions(self, other, stop_revision=None):
786
"""Pull in all new revisions from other branch.
787
788
>>> from bzrlib.commit import commit
789
>>> bzrlib.trace.silent = True
790
>>> br1 = ScratchBranch(files=['foo', 'bar'])
791
>>> br1.add('foo')
792
>>> br1.add('bar')
793
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
794
>>> br2 = ScratchBranch()
795
>>> br2.update_revisions(br1)
796
Added 2 texts.
797
Added 1 inventories.
798
Added 1 revisions.
799
>>> br2.revision_history()
800
[u'REVISION-ID-1']
801
>>> br2.update_revisions(br1)
802
Added 0 texts.
803
Added 0 inventories.
804
Added 0 revisions.
805
>>> br1.text_store.total_size() == br2.text_store.total_size()
806
True
807
"""
808
from bzrlib.progress import ProgressBar
809
try:
810
set
811
except NameError:
812
from sets import Set as set
813
814
pb = ProgressBar()
815
816
pb.update('comparing histories')
817
revision_ids = self.missing_revisions(other, stop_revision)
818
819
if hasattr(other.revision_store, "prefetch"):
820
other.revision_store.prefetch(revision_ids)
821
if hasattr(other.inventory_store, "prefetch"):
822
inventory_ids = [other.get_revision(r).inventory_id
823
for r in revision_ids]
824
other.inventory_store.prefetch(inventory_ids)
825
826
revisions = []
827
needed_texts = set()
828
i = 0
829
for rev_id in revision_ids:
830
i += 1
831
pb.update('fetching revision', i, len(revision_ids))
832
rev = other.get_revision(rev_id)
833
revisions.append(rev)
834
inv = other.get_inventory(str(rev.inventory_id))
835
for key, entry in inv.iter_entries():
836
if entry.text_id is None:
837
continue
838
if entry.text_id not in self.text_store:
839
needed_texts.add(entry.text_id)
840
841
pb.clear()
842
843
count = self.text_store.copy_multi(other.text_store, needed_texts)
844
print "Added %d texts." % count
845
inventory_ids = [ f.inventory_id for f in revisions ]
846
count = self.inventory_store.copy_multi(other.inventory_store,
847
inventory_ids)
848
print "Added %d inventories." % count
849
revision_ids = [ f.revision_id for f in revisions]
850
count = self.revision_store.copy_multi(other.revision_store,
851
revision_ids)
852
for revision_id in revision_ids:
853
self.append_revision(revision_id)
854
print "Added %d revisions." % count
855
856
857
553
def commit(self, *args, **kw):
554
"""Deprecated"""
858
555
from bzrlib.commit import commit
859
556
commit(self, *args, **kw)
860
557
861
558
862
def lookup_revision(self, revision):
863
"""Return the revision identifier for a given revision information."""
864
revno, info = self.get_revision_info(revision)
865
return info
866
867
def get_revision_info(self, revision):
868
"""Return (revno, revision id) for revision identifier.
869
870
revision can be an integer, in which case it is assumed to be revno (though
871
this will translate negative values into positive ones)
872
revision can also be a string, in which case it is parsed for something like
873
'date:' or 'revid:' etc.
874
"""
875
if revision is None:
876
return 0, None
877
revno = None
878
try:# Convert to int if possible
879
revision = int(revision)
880
except ValueError:
881
pass
882
revs = self.revision_history()
883
if isinstance(revision, int):
884
if revision == 0:
885
return 0, None
886
# Mabye we should do this first, but we don't need it if revision == 0
887
if revision < 0:
888
revno = len(revs) + revision + 1
889
else:
890
revno = revision
891
elif isinstance(revision, basestring):
892
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
893
if revision.startswith(prefix):
894
revno = func(self, revs, revision)
895
break
896
else:
897
raise BzrError('No namespace registered for string: %r' % revision)
898
899
if revno is None or revno <= 0 or revno > len(revs):
900
raise BzrError("no such revision %s" % revision)
901
return revno, revs[revno-1]
902
903
def _namespace_revno(self, revs, revision):
904
"""Lookup a revision by revision number"""
905
assert revision.startswith('revno:')
906
try:
907
return int(revision[6:])
908
except ValueError:
909
return None
910
REVISION_NAMESPACES['revno:'] = _namespace_revno
911
912
def _namespace_revid(self, revs, revision):
913
assert revision.startswith('revid:')
914
try:
915
return revs.index(revision[6:]) + 1
916
except ValueError:
917
return None
918
REVISION_NAMESPACES['revid:'] = _namespace_revid
919
920
def _namespace_last(self, revs, revision):
921
assert revision.startswith('last:')
922
try:
923
offset = int(revision[5:])
924
except ValueError:
925
return None
926
else:
927
if offset <= 0:
928
raise BzrError('You must supply a positive value for --revision last:XXX')
929
return len(revs) - offset + 1
930
REVISION_NAMESPACES['last:'] = _namespace_last
931
932
def _namespace_tag(self, revs, revision):
933
assert revision.startswith('tag:')
934
raise BzrError('tag: namespace registered, but not implemented.')
935
REVISION_NAMESPACES['tag:'] = _namespace_tag
936
937
def _namespace_date(self, revs, revision):
938
assert revision.startswith('date:')
939
import datetime
940
# Spec for date revisions:
941
# date:value
942
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
943
# it can also start with a '+/-/='. '+' says match the first
944
# entry after the given date. '-' is match the first entry before the date
945
# '=' is match the first entry after, but still on the given date.
946
#
947
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
948
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
949
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
950
# May 13th, 2005 at 0:00
951
#
952
# So the proper way of saying 'give me all entries for today' is:
953
# -r {date:+today}:{date:-tomorrow}
954
# The default is '=' when not supplied
955
val = revision[5:]
956
match_style = '='
957
if val[:1] in ('+', '-', '='):
958
match_style = val[:1]
959
val = val[1:]
960
961
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
962
if val.lower() == 'yesterday':
963
dt = today - datetime.timedelta(days=1)
964
elif val.lower() == 'today':
965
dt = today
966
elif val.lower() == 'tomorrow':
967
dt = today + datetime.timedelta(days=1)
968
else:
969
import re
970
# This should be done outside the function to avoid recompiling it.
971
_date_re = re.compile(
972
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
973
r'(,|T)?\s*'
974
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
975
)
976
m = _date_re.match(val)
977
if not m or (not m.group('date') and not m.group('time')):
978
raise BzrError('Invalid revision date %r' % revision)
979
980
if m.group('date'):
981
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
982
else:
983
year, month, day = today.year, today.month, today.day
984
if m.group('time'):
985
hour = int(m.group('hour'))
986
minute = int(m.group('minute'))
987
if m.group('second'):
988
second = int(m.group('second'))
989
else:
990
second = 0
991
else:
992
hour, minute, second = 0,0,0
993
994
dt = datetime.datetime(year=year, month=month, day=day,
995
hour=hour, minute=minute, second=second)
996
first = dt
997
last = None
998
reversed = False
999
if match_style == '-':
1000
reversed = True
1001
elif match_style == '=':
1002
last = dt + datetime.timedelta(days=1)
1003
1004
if reversed:
1005
for i in range(len(revs)-1, -1, -1):
1006
r = self.get_revision(revs[i])
1007
# TODO: Handle timezone.
1008
dt = datetime.datetime.fromtimestamp(r.timestamp)
1009
if first >= dt and (last is None or dt >= last):
1010
return i+1
1011
else:
1012
for i in range(len(revs)):
1013
r = self.get_revision(revs[i])
1014
# TODO: Handle timezone.
1015
dt = datetime.datetime.fromtimestamp(r.timestamp)
1016
if first <= dt and (last is None or dt <= last):
1017
return i+1
1018
REVISION_NAMESPACES['date:'] = _namespace_date
559
def lookup_revision(self, revno):
560
"""Return revision hash for revision number."""
561
if revno == 0:
562
return None
563
564
try:
565
# list is 0-based; revisions are 1-based
566
return self.revision_history()[revno-1]
567
except IndexError:
568
raise BzrError("no such revision %s" % revno)
569
1019
570
1020
571
def revision_tree(self, revision_id):
1021
572
"""Return Tree for a revision on this branch.
1022
573
1023
574
`revision_id` may be None for the null revision, in which case
1024
575
an `EmptyTree` is returned."""
1025
from bzrlib.tree import EmptyTree, RevisionTree
1026
# TODO: refactor this to use an existing revision object
1027
# so we don't need to read it in twice.
576
self._need_readlock()
1028
577
if revision_id == None:
1029
return EmptyTree(self.get_root_id())
578
return EmptyTree()
1030
579
else:
1031
580
inv = self.get_revision_inventory(revision_id)
1032
581
return RevisionTree(self.text_store, inv)
1043
592
1044
593
If there are no revisions yet, return an `EmptyTree`.
1045
594
"""
1046
from bzrlib.tree import EmptyTree, RevisionTree
1047
595
r = self.last_patch()
1048
596
if r == None:
1049
return EmptyTree(self.get_root_id())
597
return EmptyTree()
1050
598
else:
1051
599
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1052
600
1057
605
1058
606
This can change the directory or the filename or both.
1059
607
"""
1060
self.lock_write()
608
self._need_writelock()
609
tree = self.working_tree()
610
inv = tree.inventory
611
if not tree.has_filename(from_rel):
612
bailout("can't rename: old working file %r does not exist" % from_rel)
613
if tree.has_filename(to_rel):
614
bailout("can't rename: new working file %r already exists" % to_rel)
615
616
file_id = inv.path2id(from_rel)
617
if file_id == None:
618
bailout("can't rename: old name %r is not versioned" % from_rel)
619
620
if inv.path2id(to_rel):
621
bailout("can't rename: new name %r is already versioned" % to_rel)
622
623
to_dir, to_tail = os.path.split(to_rel)
624
to_dir_id = inv.path2id(to_dir)
625
if to_dir_id == None and to_dir != '':
626
bailout("can't determine destination directory id for %r" % to_dir)
627
628
mutter("rename_one:")
629
mutter(" file_id {%s}" % file_id)
630
mutter(" from_rel %r" % from_rel)
631
mutter(" to_rel %r" % to_rel)
632
mutter(" to_dir %r" % to_dir)
633
mutter(" to_dir_id {%s}" % to_dir_id)
634
635
inv.rename(file_id, to_dir_id, to_tail)
636
637
print "%s => %s" % (from_rel, to_rel)
638
639
from_abs = self.abspath(from_rel)
640
to_abs = self.abspath(to_rel)
1061
641
try:
1062
tree = self.working_tree()
1063
inv = tree.inventory
1064
if not tree.has_filename(from_rel):
1065
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1066
if tree.has_filename(to_rel):
1067
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1068
1069
file_id = inv.path2id(from_rel)
1070
if file_id == None:
1071
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1072
1073
if inv.path2id(to_rel):
1074
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1075
1076
to_dir, to_tail = os.path.split(to_rel)
1077
to_dir_id = inv.path2id(to_dir)
1078
if to_dir_id == None and to_dir != '':
1079
raise BzrError("can't determine destination directory id for %r" % to_dir)
1080
1081
mutter("rename_one:")
1082
mutter(" file_id {%s}" % file_id)
1083
mutter(" from_rel %r" % from_rel)
1084
mutter(" to_rel %r" % to_rel)
1085
mutter(" to_dir %r" % to_dir)
1086
mutter(" to_dir_id {%s}" % to_dir_id)
1087
1088
inv.rename(file_id, to_dir_id, to_tail)
1089
1090
print "%s => %s" % (from_rel, to_rel)
1091
1092
from_abs = self.abspath(from_rel)
1093
to_abs = self.abspath(to_rel)
1094
try:
1095
os.rename(from_abs, to_abs)
1096
except OSError, e:
1097
raise BzrError("failed to rename %r to %r: %s"
1098
% (from_abs, to_abs, e[1]),
1099
["rename rolled back"])
1100
1101
self._write_inventory(inv)
1102
finally:
1103
self.unlock()
642
os.rename(from_abs, to_abs)
643
except OSError, e:
644
bailout("failed to rename %r to %r: %s"
645
% (from_abs, to_abs, e[1]),
646
["rename rolled back"])
647
648
self._write_inventory(inv)
649
1104
650
1105
651
1106
652
def move(self, from_paths, to_name):
1114
660
Note that to_name is only the last component of the new name;
1115
661
this doesn't change the directory.
1116
662
"""
1117
self.lock_write()
1118
try:
1119
## TODO: Option to move IDs only
1120
assert not isinstance(from_paths, basestring)
1121
tree = self.working_tree()
1122
inv = tree.inventory
1123
to_abs = self.abspath(to_name)
1124
if not isdir(to_abs):
1125
raise BzrError("destination %r is not a directory" % to_abs)
1126
if not tree.has_filename(to_name):
1127
raise BzrError("destination %r not in working directory" % to_abs)
1128
to_dir_id = inv.path2id(to_name)
1129
if to_dir_id == None and to_name != '':
1130
raise BzrError("destination %r is not a versioned directory" % to_name)
1131
to_dir_ie = inv[to_dir_id]
1132
if to_dir_ie.kind not in ('directory', 'root_directory'):
1133
raise BzrError("destination %r is not a directory" % to_abs)
1134
1135
to_idpath = inv.get_idpath(to_dir_id)
1136
1137
for f in from_paths:
1138
if not tree.has_filename(f):
1139
raise BzrError("%r does not exist in working tree" % f)
1140
f_id = inv.path2id(f)
1141
if f_id == None:
1142
raise BzrError("%r is not versioned" % f)
1143
name_tail = splitpath(f)[-1]
1144
dest_path = appendpath(to_name, name_tail)
1145
if tree.has_filename(dest_path):
1146
raise BzrError("destination %r already exists" % dest_path)
1147
if f_id in to_idpath:
1148
raise BzrError("can't move %r to a subdirectory of itself" % f)
1149
1150
# OK, so there's a race here, it's possible that someone will
1151
# create a file in this interval and then the rename might be
1152
# left half-done. But we should have caught most problems.
1153
1154
for f in from_paths:
1155
name_tail = splitpath(f)[-1]
1156
dest_path = appendpath(to_name, name_tail)
1157
print "%s => %s" % (f, dest_path)
1158
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1159
try:
1160
os.rename(self.abspath(f), self.abspath(dest_path))
1161
except OSError, e:
1162
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1163
["rename rolled back"])
1164
1165
self._write_inventory(inv)
1166
finally:
1167
self.unlock()
1168
1169
1170
def revert(self, filenames, old_tree=None, backups=True):
1171
"""Restore selected files to the versions from a previous tree.
1172
1173
backups
1174
If true (default) backups are made of files before
1175
they're renamed.
1176
"""
1177
from bzrlib.errors import NotVersionedError, BzrError
1178
from bzrlib.atomicfile import AtomicFile
1179
from bzrlib.osutils import backup_file
1180
1181
inv = self.read_working_inventory()
1182
if old_tree is None:
1183
old_tree = self.basis_tree()
1184
old_inv = old_tree.inventory
1185
1186
nids = []
1187
for fn in filenames:
1188
file_id = inv.path2id(fn)
1189
if not file_id:
1190
raise NotVersionedError("not a versioned file", fn)
1191
if not old_inv.has_id(file_id):
1192
raise BzrError("file not present in old tree", fn, file_id)
1193
nids.append((fn, file_id))
1194
1195
# TODO: Rename back if it was previously at a different location
1196
1197
# TODO: If given a directory, restore the entire contents from
1198
# the previous version.
1199
1200
# TODO: Make a backup to a temporary file.
1201
1202
# TODO: If the file previously didn't exist, delete it?
1203
for fn, file_id in nids:
1204
backup_file(fn)
1205
1206
f = AtomicFile(fn, 'wb')
1207
try:
1208
f.write(old_tree.get_file(file_id).read())
1209
f.commit()
1210
finally:
1211
f.close()
1212
1213
1214
def pending_merges(self):
1215
"""Return a list of pending merges.
1216
1217
These are revisions that have been merged into the working
1218
directory but not yet committed.
1219
"""
1220
cfn = self.controlfilename('pending-merges')
1221
if not os.path.exists(cfn):
1222
return []
1223
p = []
1224
for l in self.controlfile('pending-merges', 'r').readlines():
1225
p.append(l.rstrip('\n'))
1226
return p
1227
1228
1229
def add_pending_merge(self, revision_id):
1230
from bzrlib.revision import validate_revision_id
1231
1232
validate_revision_id(revision_id)
1233
1234
p = self.pending_merges()
1235
if revision_id in p:
1236
return
1237
p.append(revision_id)
1238
self.set_pending_merges(p)
1239
1240
1241
def set_pending_merges(self, rev_list):
1242
from bzrlib.atomicfile import AtomicFile
1243
self.lock_write()
1244
try:
1245
f = AtomicFile(self.controlfilename('pending-merges'))
1246
try:
1247
for l in rev_list:
1248
print >>f, l
1249
f.commit()
1250
finally:
1251
f.close()
1252
finally:
1253
self.unlock()
663
self._need_writelock()
664
## TODO: Option to move IDs only
665
assert not isinstance(from_paths, basestring)
666
tree = self.working_tree()
667
inv = tree.inventory
668
to_abs = self.abspath(to_name)
669
if not isdir(to_abs):
670
bailout("destination %r is not a directory" % to_abs)
671
if not tree.has_filename(to_name):
672
bailout("destination %r not in working directory" % to_abs)
673
to_dir_id = inv.path2id(to_name)
674
if to_dir_id == None and to_name != '':
675
bailout("destination %r is not a versioned directory" % to_name)
676
to_dir_ie = inv[to_dir_id]
677
if to_dir_ie.kind not in ('directory', 'root_directory'):
678
bailout("destination %r is not a directory" % to_abs)
679
680
to_idpath = Set(inv.get_idpath(to_dir_id))
681
682
for f in from_paths:
683
if not tree.has_filename(f):
684
bailout("%r does not exist in working tree" % f)
685
f_id = inv.path2id(f)
686
if f_id == None:
687
bailout("%r is not versioned" % f)
688
name_tail = splitpath(f)[-1]
689
dest_path = appendpath(to_name, name_tail)
690
if tree.has_filename(dest_path):
691
bailout("destination %r already exists" % dest_path)
692
if f_id in to_idpath:
693
bailout("can't move %r to a subdirectory of itself" % f)
694
695
# OK, so there's a race here, it's possible that someone will
696
# create a file in this interval and then the rename might be
697
# left half-done. But we should have caught most problems.
698
699
for f in from_paths:
700
name_tail = splitpath(f)[-1]
701
dest_path = appendpath(to_name, name_tail)
702
print "%s => %s" % (f, dest_path)
703
inv.rename(inv.path2id(f), to_dir_id, name_tail)
704
try:
705
os.rename(self.abspath(f), self.abspath(dest_path))
706
except OSError, e:
707
bailout("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
708
["rename rolled back"])
709
710
self._write_inventory(inv)
711
1254
712
1255
713
1256
714
1265
723
>>> isdir(bd)
1266
724
False
1267
725
"""
1268
def __init__(self, files=[], dirs=[], base=None):
726
def __init__(self, files=[], dirs=[]):
1269
727
"""Make a test branch.
1270
728
1271
729
This creates a temporary directory and runs init-tree in it.
1272
730
1273
731
If any files are listed, they are created in the working copy.
1274
732
"""
1275
from tempfile import mkdtemp
1276
init = False
1277
if base is None:
1278
base = mkdtemp()
1279
init = True
1280
Branch.__init__(self, base, init=init)
733
Branch.__init__(self, tempfile.mkdtemp(), init=True)
1281
734
for d in dirs:
1282
735
os.mkdir(self.abspath(d))
1283
736
1285
738
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1286
739
1287
740
1288
def clone(self):
1289
"""
1290
>>> orig = ScratchBranch(files=["file1", "file2"])
1291
>>> clone = orig.clone()
1292
>>> os.path.samefile(orig.base, clone.base)
1293
False
1294
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1295
True
1296
"""
1297
from shutil import copytree
1298
from tempfile import mkdtemp
1299
base = mkdtemp()
1300
os.rmdir(base)
1301
copytree(self.base, base, symlinks=True)
1302
return ScratchBranch(base=base)
1303
1304
741
def __del__(self):
1305
742
self.destroy()
1306
743
1307
744
def destroy(self):
1308
745
"""Destroy the test branch, removing the scratch directory."""
1309
from shutil import rmtree
1310
746
try:
1311
if self.base:
1312
mutter("delete ScratchBranch %s" % self.base)
1313
rmtree(self.base)
747
mutter("delete ScratchBranch %s" % self.base)
748
shutil.rmtree(self.base)
1314
749
except OSError, e:
1315
750
# Work around for shutil.rmtree failing on Windows when
1316
751
# readonly files are encountered
1318
753
for root, dirs, files in os.walk(self.base, topdown=False):
1319
754
for name in files:
1320
755
os.chmod(os.path.join(root, name), 0700)
1321
rmtree(self.base)
756
shutil.rmtree(self.base)
1322
757
self.base = None
1323
758
1324
759
1348
783
This should probably generate proper UUIDs, but for the moment we
1349
784
cope with just randomness because running uuidgen every time is
1350
785
slow."""
1351
import re
1352
from binascii import hexlify
1353
from time import time
1354
1355
# get last component
1356
786
idx = name.rfind('/')
1357
787
if idx != -1:
1358
788
name = name[idx+1 : ]
1360
790
if idx != -1:
1361
791
name = name[idx+1 : ]
1362
792
1363
# make it not a hidden file
1364
793
name = name.lstrip('.')
1365
794
1366
# remove any wierd characters; we don't escape them but rather
1367
# just pull them out
1368
name = re.sub(r'[^\w.]', '', name)
1369
1370
795
s = hexlify(rand_bytes(8))
1371
return '-'.join((name, compact_date(time()), s))
1372
1373
1374
def gen_root_id():
1375
"""Return a new tree-root file id."""
1376
return gen_file_id('TREE_ROOT')
1377
796
return '-'.join((name, compact_date(time.time()), s))
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