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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import sys, os, os.path, random, time, sha, sets, types, re, shutil, tempfile
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import traceback, socket, fnmatch, difflib, time
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from binascii import hexlify
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from inventory import Inventory
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from trace import mutter, note
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from tree import Tree, EmptyTree, RevisionTree, WorkingTree
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from inventory import InventoryEntry, Inventory
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from osutils import isdir, quotefn, isfile, uuid, sha_file, username, chomp, \
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format_date, compact_date, pumpfile, user_email, rand_bytes, splitpath, \
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joinpath, sha_string, file_kind, local_time_offset
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from store import ImmutableStore
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from revision import Revision
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from errors import bailout
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from textui import show_status
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from diff import diff_trees
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.xml import unpack_xml
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster.
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# TODO: please move the revision-string syntax stuff out of the branch
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# object; it's clutter
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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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return remotebranch.RemoteBranch(f, **args)
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return Branch(f, **args)
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def find_cached_branch(f, cache_root, **args):
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from remotebranch import RemoteBranch
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br = find_branch(f, **args)
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def cacheify(br, store_name):
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from meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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new_store = CachedStore(getattr(br, store_name), cache_path)
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setattr(br, store_name, new_store)
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if isinstance(br, RemoteBranch):
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cacheify(br, 'inventory_store')
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cacheify(br, 'text_store')
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cacheify(br, 'revision_store')
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
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current working directory.
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Lifted out of Branch.relpath for ease of testing.
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os.path.commonprefix (python2.4) has a bad bug that it works just
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on string prefixes, assuming that '/u' is a prefix of '/u2'. This
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avoids that problem."""
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rp = os.path.abspath(path)
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while len(head) >= len(base):
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head, tail = os.path.split(head)
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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return os.sep.join(s)
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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f may be a filename or a URL.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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head, tail = os.path.split(f)
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# reached the root, whatever that may be
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bailout('%r is not in a branch' % orig_f)
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raise bzrlib.errors.NotBranchError('%s is not in a branch' % orig_f)
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# XXX: move into bzrlib.errors; subclass BzrError
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
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######################################################################
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class Branch(object):
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"""Branch holding a history of revisions.
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:todo: Perhaps use different stores for different classes of object,
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so that we can keep track of how much space each one uses,
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or garbage-collect them.
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:todo: Add a RemoteBranch subclass. For the basic case of read-only
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HTTP access this should be very easy by,
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just redirecting controlfile access into HTTP requests.
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We would need a RemoteStore working similarly.
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:todo: Keep the on-disk branch locked while the object exists.
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:todo: mkdir() method.
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Base directory of the branch.
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If _lock_mode is true, a positive count of the number of times the
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Lock object from bzrlib.lock.
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def __init__(self, base, init=False, find_root=True):
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"""Create new branch object at a particular location.
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:param base: Base directory for the branch.
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base -- Base directory for the branch.
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:param init: If True, create new control files in a previously
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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:param find_root: If true and init is false, find the root of the
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find_root -- If true and init is false, find the root of the
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existing branch containing base.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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from bzrlib.store import ImmutableStore
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self.base = os.path.realpath(base)
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self._make_control()
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__repr__ = __str__
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if self._lock_mode or self._lock:
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from warnings import warn
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warn("branch %r was not explicitly unlocked" % self)
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def lock_write(self):
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if self._lock_mode != 'w':
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from errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_count += 1
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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if not self._lock_mode:
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from errors import LockError
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raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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self._lock_mode = self._lock_count = None
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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rp = os.path.realpath(path)
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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 _relpath(self.base, path)
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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if isinstance(file_or_path, types.StringTypes):
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if isinstance(file_or_path, basestring):
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file_or_path = [file_or_path]
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return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch"""
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return file(self.controlfilename(file_or_path), mode)
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
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rather should be atomically copied and replaced using atomicfile.
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
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return file(fn, mode)
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elif mode == 'r' or mode == 'w':
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# open in binary mode anyhow so there's no newline translation;
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# codecs uses line buffering by default; don't want that.
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return codecs.open(fn, mode + 'b', 'utf-8',
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raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
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from bzrlib.inventory import Inventory
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from bzrlib.xml import pack_xml
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os.mkdir(self.controlfilename([]))
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self.controlfile('README', 'w').write(
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"This is a Bazaar-NG control directory.\n"
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"Do not change any files in this directory.")
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"Do not change any files in this directory.\n")
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self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
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for d in ('text-store', 'inventory-store', 'revision-store'):
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os.mkdir(self.controlfilename(d))
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for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name'):
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'pending-merged-patches', 'branch-name',
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self.controlfile(f, 'w').write('')
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mutter('created control directory in ' + self.base)
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Inventory().write_xml(self.controlfile('inventory','w'))
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# if we want per-tree root ids then this is the place to set
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# them; they're not needed for now and so ommitted for
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pack_xml(Inventory(), self.controlfile('inventory','w'))
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def _check_format(self):
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"""Check this branch format is supported.
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In the future, we might need different in-memory Branch
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classes to support downlevel branches. But not yet.
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# read in binary mode to detect newline wierdness.
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fmt = self.controlfile('branch-format', 'rb').read()
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# This ignores newlines so that we can open branches created
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# on Windows from Linux and so on. I think it might be better
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# to always make all internal files in unix format.
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fmt = self.controlfile('branch-format', 'r').read()
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fmt.replace('\r\n', '')
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if fmt != BZR_BRANCH_FORMAT:
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bailout('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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raise BzrError('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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def get_root_id(self):
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"""Return the id of this branches root"""
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inv = self.read_working_inventory()
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return inv.root.file_id
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def set_root_id(self, file_id):
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inv = self.read_working_inventory()
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orig_root_id = inv.root.file_id
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del inv._byid[inv.root.file_id]
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inv.root.file_id = file_id
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inv._byid[inv.root.file_id] = inv.root
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if entry.parent_id in (None, orig_root_id):
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entry.parent_id = inv.root.file_id
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self._write_inventory(inv)
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def read_working_inventory(self):
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"""Read the working inventory."""
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inv = Inventory.read_xml(self.controlfile('inventory', 'r'))
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mutter("loaded inventory of %d items in %f"
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% (len(inv), time.time() - before))
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from bzrlib.inventory import Inventory
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from bzrlib.xml import unpack_xml
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from time import time
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# ElementTree does its own conversion from UTF-8, so open in
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inv = unpack_xml(Inventory,
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self.controlfile('inventory', 'rb'))
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mutter("loaded inventory of %d items in %f"
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% (len(inv), time() - before))
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def _write_inventory(self, inv):
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"""Update the working inventory.
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That is to say, the inventory describing changes underway, that
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will be committed to the next revision.
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## TODO: factor out to atomicfile? is rename safe on windows?
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## TODO: Maybe some kind of clean/dirty marker on inventory?
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tmpfname = self.controlfilename('inventory.tmp')
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tmpf = file(tmpfname, 'w')
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os.rename(tmpfname, self.controlfilename('inventory'))
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from bzrlib.atomicfile import AtomicFile
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from bzrlib.xml import pack_xml
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f = AtomicFile(self.controlfilename('inventory'), 'wb')
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mutter('wrote working inventory')
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inventory = property(read_working_inventory, _write_inventory, None,
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"""Inventory for the working copy.""")
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def add(self, files, verbose=False):
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def add(self, files, verbose=False, ids=None):
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"""Make files versioned.
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Note that the command line normally calls smart_add instead.
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This puts the files in the Added state, so that they will be
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recorded by the next commit.
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:todo: Perhaps have an option to add the ids even if the files do
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:todo: Perhaps return the ids of the files? But then again it
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is easy to retrieve them if they're needed.
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:todo: Option to specify file id.
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:todo: Adding a directory should optionally recurse down and
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add all non-ignored children. Perhaps do that in a
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>>> b = ScratchBranch(files=['foo'])
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>>> 'foo' in b.unknowns()
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>>> 'foo' in b.unknowns()
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>>> bool(b.inventory.path2id('foo'))
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Traceback (most recent call last):
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BzrError: ('foo is already versioned', [])
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>>> b.add(['nothere'])
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Traceback (most recent call last):
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BzrError: ('cannot add: not a regular file or directory: nothere', [])
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List of paths to add, relative to the base of the tree.
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If set, use these instead of automatically generated ids.
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Must be the same length as the list of files, but may
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contain None for ids that are to be autogenerated.
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TODO: Perhaps have an option to add the ids even if the files do
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TODO: Perhaps return the ids of the files? But then again it
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is easy to retrieve them if they're needed.
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TODO: Adding a directory should optionally recurse down and
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add all non-ignored children. Perhaps do that in a
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# TODO: Re-adding a file that is removed in the working copy
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# should probably put it back with the previous ID.
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if isinstance(files, types.StringTypes):
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if isinstance(files, basestring):
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assert(ids is None or isinstance(ids, basestring))
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inv = self.read_working_inventory()
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if is_control_file(f):
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bailout("cannot add control file %s" % quotefn(f))
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bailout("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self.abspath(f))
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kind = file_kind(fullpath)
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# maybe something better?
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bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
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if kind != 'file' and kind != 'directory':
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bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
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file_id = gen_file_id(f)
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inv.add_path(f, kind=kind, file_id=file_id)
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show_status('A', kind, quotefn(f))
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mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
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self._write_inventory(inv)
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ids = [None] * len(files)
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assert(len(ids) == len(files))
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inv = self.read_working_inventory()
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for f,file_id in zip(files, ids):
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if is_control_file(f):
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raise BzrError("cannot add control file %s" % quotefn(f))
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raise BzrError("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self.abspath(f))
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kind = file_kind(fullpath)
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# maybe something better?
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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if kind != 'file' and kind != 'directory':
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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file_id = gen_file_id(f)
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inv.add_path(f, kind=kind, file_id=file_id)
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print 'added', quotefn(f)
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mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
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self._write_inventory(inv)
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def print_file(self, file, revno):
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"""Print `file` to stdout."""
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tree = self.revision_tree(self.lookup_revision(revno))
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# use inventory as it was in that revision
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file_id = tree.inventory.path2id(file)
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raise BzrError("%r is not present in revision %s" % (file, revno))
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tree.print_file(file_id)
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def remove(self, files, verbose=False):
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This does not remove their text. This does not run on
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:todo: Refuse to remove modified files unless --force is given?
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>>> b = ScratchBranch(files=['foo'])
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>>> b.inventory.has_filename('foo')
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>>> b.working_tree().has_filename('foo')
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>>> b.inventory.has_filename('foo')
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>>> b = ScratchBranch(files=['foo'])
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>>> b.inventory.has_filename('foo')
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>>> b.basis_tree().has_filename('foo')
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>>> b.working_tree().has_filename('foo')
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:todo: Do something useful with directories.
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:todo: Should this remove the text or not? Tough call; not
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TODO: Refuse to remove modified files unless --force is given?
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TODO: Do something useful with directories.
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TODO: Should this remove the text or not? Tough call; not
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removing may be useful and the user can just use use rm, and
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is the opposite of add. Removing it is consistent with most
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other tools. Maybe an option.
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## TODO: Normalize names
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## TODO: Remove nested loops; better scalability
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if isinstance(files, types.StringTypes):
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if isinstance(files, basestring):
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tree = self.working_tree()
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# do this before any modifications
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bailout("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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tree = self.working_tree()
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# do this before any modifications
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raise BzrError("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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self._write_inventory(inv)
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# FIXME: this doesn't need to be a branch method
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def set_inventory(self, new_inventory_list):
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from bzrlib.inventory import Inventory, InventoryEntry
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inv = Inventory(self.get_root_id())
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for path, file_id, parent, kind in new_inventory_list:
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name = os.path.basename(path)
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inv.add(InventoryEntry(file_id, name, kind, parent))
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self._write_inventory(inv)
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return self.working_tree().unknowns()
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def commit(self, message, timestamp=None, timezone=None,
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"""Commit working copy as a new revision.
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The basic approach is to add all the file texts into the
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store, then the inventory, then make a new revision pointing
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to that inventory and store that.
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This is not quite safe if the working copy changes during the
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commit; for the moment that is simply not allowed. A better
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approach is to make a temporary copy of the files before
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computing their hashes, and then add those hashes in turn to
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the inventory. This should mean at least that there are no
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broken hash pointers. There is no way we can get a snapshot
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of the whole directory at an instant. This would also have to
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be robust against files disappearing, moving, etc. So the
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whole thing is a bit hard.
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:param timestamp: if not None, seconds-since-epoch for a
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postdated/predated commit.
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## TODO: Show branch names
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# TODO: Don't commit if there are no changes, unless forced?
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# First walk over the working inventory; and both update that
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# and also build a new revision inventory. The revision
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# inventory needs to hold the text-id, sha1 and size of the
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# actual file versions committed in the revision. (These are
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# not present in the working inventory.) We also need to
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# detect missing/deleted files, and remove them from the
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work_inv = self.read_working_inventory()
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basis = self.basis_tree()
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basis_inv = basis.inventory
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for path, entry in work_inv.iter_entries():
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## TODO: Cope with files that have gone missing.
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## TODO: Check that the file kind has not changed from the previous
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## revision of this file (if any).
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p = self.abspath(path)
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file_id = entry.file_id
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mutter('commit prep file %s, id %r ' % (p, file_id))
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if not os.path.exists(p):
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mutter(" file is missing, removing from inventory")
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show_status('D', entry.kind, quotefn(path))
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missing_ids.append(file_id)
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# TODO: Handle files that have been deleted
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# TODO: Maybe a special case for empty files? Seems a
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# waste to store them many times.
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if basis_inv.has_id(file_id):
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old_kind = basis_inv[file_id].kind
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if old_kind != entry.kind:
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bailout("entry %r changed kind from %r to %r"
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% (file_id, old_kind, entry.kind))
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if entry.kind == 'directory':
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bailout("%s is entered as directory but not a directory" % quotefn(p))
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elif entry.kind == 'file':
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bailout("%s is entered as file but is not a file" % quotefn(p))
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content = file(p, 'rb').read()
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entry.text_sha1 = sha_string(content)
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entry.text_size = len(content)
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old_ie = basis_inv.has_id(file_id) and basis_inv[file_id]
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and (old_ie.text_size == entry.text_size)
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and (old_ie.text_sha1 == entry.text_sha1)):
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## assert content == basis.get_file(file_id).read()
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entry.text_id = basis_inv[file_id].text_id
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mutter(' unchanged from previous text_id {%s}' %
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entry.text_id = gen_file_id(entry.name)
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self.text_store.add(content, entry.text_id)
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mutter(' stored with text_id {%s}' % entry.text_id)
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elif (old_ie.name == entry.name
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and old_ie.parent_id == entry.parent_id):
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show_status(state, entry.kind, quotefn(path))
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for file_id in missing_ids:
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# have to do this later so we don't mess up the iterator.
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# since parents may be removed before their children we
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# FIXME: There's probably a better way to do this; perhaps
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# the workingtree should know how to filter itself.
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if work_inv.has_id(file_id):
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del work_inv[file_id]
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inv_id = rev_id = _gen_revision_id(time.time())
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inv_tmp = tempfile.TemporaryFile()
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inv.write_xml(inv_tmp)
505
self.inventory_store.add(inv_tmp, inv_id)
506
mutter('new inventory_id is {%s}' % inv_id)
508
self._write_inventory(work_inv)
510
if timestamp == None:
511
timestamp = time.time()
513
if committer == None:
514
committer = username()
517
timezone = local_time_offset()
519
mutter("building commit log message")
520
rev = Revision(timestamp=timestamp,
523
precursor = self.last_patch(),
528
rev_tmp = tempfile.TemporaryFile()
529
rev.write_xml(rev_tmp)
531
self.revision_store.add(rev_tmp, rev_id)
532
mutter("new revision_id is {%s}" % rev_id)
534
## XXX: Everything up to here can simply be orphaned if we abort
535
## the commit; it will leave junk files behind but that doesn't
538
## TODO: Read back the just-generated changeset, and make sure it
539
## applies and recreates the right state.
541
## TODO: Also calculate and store the inventory SHA1
542
mutter("committing patch r%d" % (self.revno() + 1))
544
mutter("append to revision-history")
545
self.controlfile('revision-history', 'at').write(rev_id + '\n')
573
def append_revision(self, *revision_ids):
574
from bzrlib.atomicfile import AtomicFile
576
for revision_id in revision_ids:
577
mutter("add {%s} to revision-history" % revision_id)
579
rev_history = self.revision_history()
580
rev_history.extend(revision_ids)
582
f = AtomicFile(self.controlfilename('revision-history'))
584
for rev_id in rev_history:
591
def get_revision_xml(self, revision_id):
592
"""Return XML file object for revision object."""
593
if not revision_id or not isinstance(revision_id, basestring):
594
raise InvalidRevisionId(revision_id)
599
return self.revision_store[revision_id]
601
raise bzrlib.errors.NoSuchRevision(self, revision_id)
550
606
def get_revision(self, revision_id):
551
607
"""Return the Revision object for a named revision"""
552
r = Revision.read_xml(self.revision_store[revision_id])
608
xml_file = self.get_revision_xml(revision_id)
611
r = unpack_xml(Revision, xml_file)
612
except SyntaxError, e:
613
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
553
617
assert r.revision_id == revision_id
621
def get_revision_delta(self, revno):
622
"""Return the delta for one revision.
624
The delta is relative to its mainline predecessor, or the
625
empty tree for revision 1.
627
assert isinstance(revno, int)
628
rh = self.revision_history()
629
if not (1 <= revno <= len(rh)):
630
raise InvalidRevisionNumber(revno)
632
# revno is 1-based; list is 0-based
634
new_tree = self.revision_tree(rh[revno-1])
636
old_tree = EmptyTree()
638
old_tree = self.revision_tree(rh[revno-2])
640
return compare_trees(old_tree, new_tree)
644
def get_revision_sha1(self, revision_id):
645
"""Hash the stored value of a revision, and return it."""
646
# In the future, revision entries will be signed. At that
647
# point, it is probably best *not* to include the signature
648
# in the revision hash. Because that lets you re-sign
649
# the revision, (add signatures/remove signatures) and still
650
# have all hash pointers stay consistent.
651
# But for now, just hash the contents.
652
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
557
655
def get_inventory(self, inventory_id):
558
656
"""Get Inventory object by hash.
560
:todo: Perhaps for this and similar methods, take a revision
658
TODO: Perhaps for this and similar methods, take a revision
561
659
parameter which can be either an integer revno or a
563
i = Inventory.read_xml(self.inventory_store[inventory_id])
661
from bzrlib.inventory import Inventory
662
from bzrlib.xml import unpack_xml
664
return unpack_xml(Inventory, self.get_inventory_xml(inventory_id))
667
def get_inventory_xml(self, inventory_id):
668
"""Get inventory XML as a file object."""
669
return self.inventory_store[inventory_id]
672
def get_inventory_sha1(self, inventory_id):
673
"""Return the sha1 hash of the inventory entry
675
return sha_file(self.get_inventory_xml(inventory_id))
567
678
def get_revision_inventory(self, revision_id):
568
679
"""Return inventory of a past revision."""
680
# bzr 0.0.6 imposes the constraint that the inventory_id
681
# must be the same as its revision, so this is trivial.
569
682
if revision_id == None:
683
from bzrlib.inventory import Inventory
684
return Inventory(self.get_root_id())
572
return self.get_inventory(self.get_revision(revision_id).inventory_id)
686
return self.get_inventory(revision_id)
575
689
def revision_history(self):
587
751
That is equivalent to the number of revisions committed to
590
>>> b = ScratchBranch()
593
>>> b.commit('no foo')
597
754
return len(self.revision_history())
600
757
def last_patch(self):
601
758
"""Return last patch hash, or None if no history.
603
>>> ScratchBranch().last_patch() == None
606
760
ph = self.revision_history()
611
def lookup_revision(self, revno):
612
"""Return revision hash for revision number."""
767
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
769
If self and other have not diverged, return a list of the revisions
770
present in other, but missing from self.
772
>>> from bzrlib.commit import commit
773
>>> bzrlib.trace.silent = True
774
>>> br1 = ScratchBranch()
775
>>> br2 = ScratchBranch()
776
>>> br1.missing_revisions(br2)
778
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
779
>>> br1.missing_revisions(br2)
781
>>> br2.missing_revisions(br1)
783
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
784
>>> br1.missing_revisions(br2)
786
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
787
>>> br1.missing_revisions(br2)
789
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
790
>>> br1.missing_revisions(br2)
791
Traceback (most recent call last):
792
DivergedBranches: These branches have diverged.
794
self_history = self.revision_history()
795
self_len = len(self_history)
796
other_history = other.revision_history()
797
other_len = len(other_history)
798
common_index = min(self_len, other_len) -1
799
if common_index >= 0 and \
800
self_history[common_index] != other_history[common_index]:
801
raise DivergedBranches(self, other)
803
if stop_revision is None:
804
stop_revision = other_len
805
elif stop_revision > other_len:
806
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
808
return other_history[self_len:stop_revision]
811
def update_revisions(self, other, stop_revision=None):
812
"""Pull in all new revisions from other branch.
814
from bzrlib.fetch import greedy_fetch
816
pb = bzrlib.ui.ui_factory.progress_bar()
817
pb.update('comparing histories')
819
revision_ids = self.missing_revisions(other, stop_revision)
821
if len(revision_ids) > 0:
822
count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
825
self.append_revision(*revision_ids)
826
## note("Added %d revisions." % count)
829
def install_revisions(self, other, revision_ids, pb):
830
if hasattr(other.revision_store, "prefetch"):
831
other.revision_store.prefetch(revision_ids)
832
if hasattr(other.inventory_store, "prefetch"):
833
inventory_ids = [other.get_revision(r).inventory_id
834
for r in revision_ids]
835
other.inventory_store.prefetch(inventory_ids)
838
pb = bzrlib.ui.ui_factory.progress_bar()
845
for i, rev_id in enumerate(revision_ids):
846
pb.update('fetching revision', i+1, len(revision_ids))
848
rev = other.get_revision(rev_id)
849
except bzrlib.errors.NoSuchRevision:
853
revisions.append(rev)
854
inv = other.get_inventory(str(rev.inventory_id))
855
for key, entry in inv.iter_entries():
856
if entry.text_id is None:
858
if entry.text_id not in self.text_store:
859
needed_texts.add(entry.text_id)
863
count, cp_fail = self.text_store.copy_multi(other.text_store,
865
#print "Added %d texts." % count
866
inventory_ids = [ f.inventory_id for f in revisions ]
867
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
869
#print "Added %d inventories." % count
870
revision_ids = [ f.revision_id for f in revisions]
872
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
875
assert len(cp_fail) == 0
876
return count, failures
879
def commit(self, *args, **kw):
880
from bzrlib.commit import commit
881
commit(self, *args, **kw)
884
def lookup_revision(self, revision):
885
"""Return the revision identifier for a given revision information."""
886
revno, info = self._get_revision_info(revision)
890
def revision_id_to_revno(self, revision_id):
891
"""Given a revision id, return its revno"""
892
history = self.revision_history()
894
return history.index(revision_id) + 1
896
raise bzrlib.errors.NoSuchRevision(self, revision_id)
899
def get_revision_info(self, revision):
900
"""Return (revno, revision id) for revision identifier.
902
revision can be an integer, in which case it is assumed to be revno (though
903
this will translate negative values into positive ones)
904
revision can also be a string, in which case it is parsed for something like
905
'date:' or 'revid:' etc.
907
revno, rev_id = self._get_revision_info(revision)
909
raise bzrlib.errors.NoSuchRevision(self, revision)
912
def get_rev_id(self, revno, history=None):
913
"""Find the revision id of the specified revno."""
617
# list is 0-based; revisions are 1-based
618
return self.revision_history()[revno-1]
620
bailout("no such revision %s" % revno)
917
history = self.revision_history()
918
elif revno <= 0 or revno > len(history):
919
raise bzrlib.errors.NoSuchRevision(self, revno)
920
return history[revno - 1]
922
def _get_revision_info(self, revision):
923
"""Return (revno, revision id) for revision specifier.
925
revision can be an integer, in which case it is assumed to be revno
926
(though this will translate negative values into positive ones)
927
revision can also be a string, in which case it is parsed for something
928
like 'date:' or 'revid:' etc.
930
A revid is always returned. If it is None, the specifier referred to
931
the null revision. If the revid does not occur in the revision
932
history, revno will be None.
938
try:# Convert to int if possible
939
revision = int(revision)
942
revs = self.revision_history()
943
if isinstance(revision, int):
945
revno = len(revs) + revision + 1
948
rev_id = self.get_rev_id(revno, revs)
949
elif isinstance(revision, basestring):
950
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
951
if revision.startswith(prefix):
952
result = func(self, revs, revision)
954
revno, rev_id = result
957
rev_id = self.get_rev_id(revno, revs)
960
raise BzrError('No namespace registered for string: %r' %
963
raise TypeError('Unhandled revision type %s' % revision)
967
raise bzrlib.errors.NoSuchRevision(self, revision)
970
def _namespace_revno(self, revs, revision):
971
"""Lookup a revision by revision number"""
972
assert revision.startswith('revno:')
974
return (int(revision[6:]),)
977
REVISION_NAMESPACES['revno:'] = _namespace_revno
979
def _namespace_revid(self, revs, revision):
980
assert revision.startswith('revid:')
981
rev_id = revision[len('revid:'):]
983
return revs.index(rev_id) + 1, rev_id
986
REVISION_NAMESPACES['revid:'] = _namespace_revid
988
def _namespace_last(self, revs, revision):
989
assert revision.startswith('last:')
991
offset = int(revision[5:])
996
raise BzrError('You must supply a positive value for --revision last:XXX')
997
return (len(revs) - offset + 1,)
998
REVISION_NAMESPACES['last:'] = _namespace_last
1000
def _namespace_tag(self, revs, revision):
1001
assert revision.startswith('tag:')
1002
raise BzrError('tag: namespace registered, but not implemented.')
1003
REVISION_NAMESPACES['tag:'] = _namespace_tag
1005
def _namespace_date(self, revs, revision):
1006
assert revision.startswith('date:')
1008
# Spec for date revisions:
1010
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1011
# it can also start with a '+/-/='. '+' says match the first
1012
# entry after the given date. '-' is match the first entry before the date
1013
# '=' is match the first entry after, but still on the given date.
1015
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1016
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1017
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1018
# May 13th, 2005 at 0:00
1020
# So the proper way of saying 'give me all entries for today' is:
1021
# -r {date:+today}:{date:-tomorrow}
1022
# The default is '=' when not supplied
1025
if val[:1] in ('+', '-', '='):
1026
match_style = val[:1]
1029
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1030
if val.lower() == 'yesterday':
1031
dt = today - datetime.timedelta(days=1)
1032
elif val.lower() == 'today':
1034
elif val.lower() == 'tomorrow':
1035
dt = today + datetime.timedelta(days=1)
1038
# This should be done outside the function to avoid recompiling it.
1039
_date_re = re.compile(
1040
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1042
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1044
m = _date_re.match(val)
1045
if not m or (not m.group('date') and not m.group('time')):
1046
raise BzrError('Invalid revision date %r' % revision)
1049
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1051
year, month, day = today.year, today.month, today.day
1053
hour = int(m.group('hour'))
1054
minute = int(m.group('minute'))
1055
if m.group('second'):
1056
second = int(m.group('second'))
1060
hour, minute, second = 0,0,0
1062
dt = datetime.datetime(year=year, month=month, day=day,
1063
hour=hour, minute=minute, second=second)
1067
if match_style == '-':
1069
elif match_style == '=':
1070
last = dt + datetime.timedelta(days=1)
1073
for i in range(len(revs)-1, -1, -1):
1074
r = self.get_revision(revs[i])
1075
# TODO: Handle timezone.
1076
dt = datetime.datetime.fromtimestamp(r.timestamp)
1077
if first >= dt and (last is None or dt >= last):
1080
for i in range(len(revs)):
1081
r = self.get_revision(revs[i])
1082
# TODO: Handle timezone.
1083
dt = datetime.datetime.fromtimestamp(r.timestamp)
1084
if first <= dt and (last is None or dt <= last):
1086
REVISION_NAMESPACES['date:'] = _namespace_date
623
1088
def revision_tree(self, revision_id):
624
1089
"""Return Tree for a revision on this branch.
626
1091
`revision_id` may be None for the null revision, in which case
627
1092
an `EmptyTree` is returned."""
1093
# TODO: refactor this to use an existing revision object
1094
# so we don't need to read it in twice.
629
1095
if revision_id == None:
630
1096
return EmptyTree()
664
def write_log(self, show_timezone='original'):
665
"""Write out human-readable log of commits to this branch
667
:param utc: If true, show dates in universal time, not local time."""
668
## TODO: Option to choose either original, utc or local timezone
671
for p in self.revision_history():
673
print 'revno:', revno
674
## TODO: Show hash if --id is given.
675
##print 'revision-hash:', p
676
rev = self.get_revision(p)
677
print 'committer:', rev.committer
678
print 'timestamp: %s' % (format_date(rev.timestamp, rev.timezone or 0,
681
## opportunistic consistency check, same as check_patch_chaining
682
if rev.precursor != precursor:
683
bailout("mismatched precursor!")
687
print ' (no message)'
689
for l in rev.message.split('\n'):
697
def show_status(branch, show_all=False):
698
"""Display single-line status for non-ignored working files.
700
The list is show sorted in order by file name.
702
>>> b = ScratchBranch(files=['foo', 'foo~'])
708
>>> b.commit("add foo")
710
>>> os.unlink(b.abspath('foo'))
1121
def rename_one(self, from_rel, to_rel):
1124
This can change the directory or the filename or both.
1128
tree = self.working_tree()
1129
inv = tree.inventory
1130
if not tree.has_filename(from_rel):
1131
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1132
if tree.has_filename(to_rel):
1133
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1135
file_id = inv.path2id(from_rel)
1137
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1139
if inv.path2id(to_rel):
1140
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1142
to_dir, to_tail = os.path.split(to_rel)
1143
to_dir_id = inv.path2id(to_dir)
1144
if to_dir_id == None and to_dir != '':
1145
raise BzrError("can't determine destination directory id for %r" % to_dir)
1147
mutter("rename_one:")
1148
mutter(" file_id {%s}" % file_id)
1149
mutter(" from_rel %r" % from_rel)
1150
mutter(" to_rel %r" % to_rel)
1151
mutter(" to_dir %r" % to_dir)
1152
mutter(" to_dir_id {%s}" % to_dir_id)
1154
inv.rename(file_id, to_dir_id, to_tail)
1156
print "%s => %s" % (from_rel, to_rel)
1158
from_abs = self.abspath(from_rel)
1159
to_abs = self.abspath(to_rel)
1161
os.rename(from_abs, to_abs)
1163
raise BzrError("failed to rename %r to %r: %s"
1164
% (from_abs, to_abs, e[1]),
1165
["rename rolled back"])
1167
self._write_inventory(inv)
1172
def move(self, from_paths, to_name):
1175
to_name must exist as a versioned directory.
1177
If to_name exists and is a directory, the files are moved into
1178
it, keeping their old names. If it is a directory,
1180
Note that to_name is only the last component of the new name;
1181
this doesn't change the directory.
1185
## TODO: Option to move IDs only
1186
assert not isinstance(from_paths, basestring)
1187
tree = self.working_tree()
1188
inv = tree.inventory
1189
to_abs = self.abspath(to_name)
1190
if not isdir(to_abs):
1191
raise BzrError("destination %r is not a directory" % to_abs)
1192
if not tree.has_filename(to_name):
1193
raise BzrError("destination %r not in working directory" % to_abs)
1194
to_dir_id = inv.path2id(to_name)
1195
if to_dir_id == None and to_name != '':
1196
raise BzrError("destination %r is not a versioned directory" % to_name)
1197
to_dir_ie = inv[to_dir_id]
1198
if to_dir_ie.kind not in ('directory', 'root_directory'):
1199
raise BzrError("destination %r is not a directory" % to_abs)
1201
to_idpath = inv.get_idpath(to_dir_id)
1203
for f in from_paths:
1204
if not tree.has_filename(f):
1205
raise BzrError("%r does not exist in working tree" % f)
1206
f_id = inv.path2id(f)
1208
raise BzrError("%r is not versioned" % f)
1209
name_tail = splitpath(f)[-1]
1210
dest_path = appendpath(to_name, name_tail)
1211
if tree.has_filename(dest_path):
1212
raise BzrError("destination %r already exists" % dest_path)
1213
if f_id in to_idpath:
1214
raise BzrError("can't move %r to a subdirectory of itself" % f)
1216
# OK, so there's a race here, it's possible that someone will
1217
# create a file in this interval and then the rename might be
1218
# left half-done. But we should have caught most problems.
1220
for f in from_paths:
1221
name_tail = splitpath(f)[-1]
1222
dest_path = appendpath(to_name, name_tail)
1223
print "%s => %s" % (f, dest_path)
1224
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1226
os.rename(self.abspath(f), self.abspath(dest_path))
1228
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1229
["rename rolled back"])
1231
self._write_inventory(inv)
1236
def revert(self, filenames, old_tree=None, backups=True):
1237
"""Restore selected files to the versions from a previous tree.
1240
If true (default) backups are made of files before
1243
from bzrlib.errors import NotVersionedError, BzrError
1244
from bzrlib.atomicfile import AtomicFile
1245
from bzrlib.osutils import backup_file
715
:todo: Get state for single files.
717
:todo: Perhaps show a slash at the end of directory names.
1247
inv = self.read_working_inventory()
1248
if old_tree is None:
1249
old_tree = self.basis_tree()
1250
old_inv = old_tree.inventory
1253
for fn in filenames:
1254
file_id = inv.path2id(fn)
1256
raise NotVersionedError("not a versioned file", fn)
1257
if not old_inv.has_id(file_id):
1258
raise BzrError("file not present in old tree", fn, file_id)
1259
nids.append((fn, file_id))
1261
# TODO: Rename back if it was previously at a different location
1263
# TODO: If given a directory, restore the entire contents from
1264
# the previous version.
1266
# TODO: Make a backup to a temporary file.
1268
# TODO: If the file previously didn't exist, delete it?
1269
for fn, file_id in nids:
1272
f = AtomicFile(fn, 'wb')
1274
f.write(old_tree.get_file(file_id).read())
1280
def pending_merges(self):
1281
"""Return a list of pending merges.
1283
These are revisions that have been merged into the working
1284
directory but not yet committed.
721
# We have to build everything into a list first so that it can
722
# sorted by name, incorporating all the different sources.
724
# FIXME: Rather than getting things in random order and then sorting,
725
# just step through in order.
727
# Interesting case: the old ID for a file has been removed,
728
# but a new file has been created under that name.
730
old = branch.basis_tree()
731
old_inv = old.inventory
732
new = branch.working_tree()
733
new_inv = new.inventory
735
for fs, fid, oldname, newname, kind in diff_trees(old, new):
737
show_status(fs, kind,
738
oldname + ' => ' + newname)
739
elif fs == 'A' or fs == 'M':
740
show_status(fs, kind, newname)
742
show_status(fs, kind, oldname)
745
show_status(fs, kind, newname)
748
show_status(fs, kind, newname)
750
show_status(fs, kind, newname)
752
bailout("wierd file state %r" % ((fs, fid),))
1286
cfn = self.controlfilename('pending-merges')
1287
if not os.path.exists(cfn):
1290
for l in self.controlfile('pending-merges', 'r').readlines():
1291
p.append(l.rstrip('\n'))
1295
def add_pending_merge(self, revision_id):
1296
from bzrlib.revision import validate_revision_id
1298
validate_revision_id(revision_id)
1300
p = self.pending_merges()
1301
if revision_id in p:
1303
p.append(revision_id)
1304
self.set_pending_merges(p)
1307
def set_pending_merges(self, rev_list):
1308
from bzrlib.atomicfile import AtomicFile
1311
f = AtomicFile(self.controlfilename('pending-merges'))
756
1323
class ScratchBranch(Branch):