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- Committer: mbp at sourcefrog
- Date: 2005-04-09 06:21:44 UTC
- Revision ID: mbp@sourcefrog.net-20050409062144-e47a4b64106e4c21af99beaf
debug output
- files added:
- bzrlib/tests.py
- files removed:
- HACKING
- bzrlib/plugins
- bzrlib/selftest
- bzrlib/util
- bzrlib/util/effbot
- bzrlib/util/effbot/org
- contrib
- contrib/bash
- contrib/emacs
- contrib/zsh
- patches
- tools
- files renamed:
- bzrlib/util/elementtree/ => elementtree/
- bzrlib/util/urlgrabber/ => urlgrabber/
- files modified:
- .bzrignore
added
removed
bzrlib/branch.py
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import sys
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import os
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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, \
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splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId, \
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DivergedBranches, NotBranchError
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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.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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import bzrlib.xml
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import bzrlib.ui
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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, 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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from diff import diff_trees
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster.
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def find_branch(*ignored, **ignored_too):
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# XXX: leave this here for about one release, then remove it
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raise NotImplementedError('find_branch() is not supported anymore, '
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'please use one of the new branch constructors')
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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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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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"""
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run into the root."""
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if f == None:
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f = os.getcwd()
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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else:
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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orig_f = f
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head, tail = os.path.split(f)
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if head == f:
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# reached the root, whatever that may be
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raise NotBranchError('%s is not in a branch' % orig_f)
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raise BzrError('%r is not in a branch' % orig_f)
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f = head
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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/url of the branch.
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"""
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base = None
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def __init__(self, *ignored, **ignored_too):
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raise NotImplementedError('The Branch class is abstract')
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@staticmethod
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def open(base):
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"""Open an existing branch, rooted at 'base' (url)"""
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if base and (base.startswith('http://') or base.startswith('https://')):
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(base, find_root=False)
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else:
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return LocalBranch(base, find_root=False)
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@staticmethod
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def open_containing(url):
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"""Open an existing branch, containing url (search upwards for the root)
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"""
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if url and (url.startswith('http://') or url.startswith('https://')):
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(url)
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else:
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return LocalBranch(url)
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@staticmethod
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def initialize(base):
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"""Create a new branch, rooted at 'base' (url)"""
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if base and (base.startswith('http://') or base.startswith('https://')):
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from bzrlib.remotebranch import RemoteBranch
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return RemoteBranch(base, init=True)
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else:
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return LocalBranch(base, init=True)
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def setup_caching(self, cache_root):
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"""Subclasses that care about caching should override this, and set
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up cached stores located under cache_root.
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"""
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class LocalBranch(Branch):
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"""A branch stored in the actual filesystem.
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Note that it's "local" in the context of the filesystem; it doesn't
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really matter if it's on an nfs/smb/afs/coda/... share, as long as
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it's writable, and can be accessed via the normal filesystem API.
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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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# We actually expect this class to be somewhat short-lived; part of its
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# purpose is to try to isolate what bits of the branch logic are tied to
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# filesystem access, so that in a later step, we can extricate them to
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# a separarte ("storage") class.
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_lock_mode = None
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_lock_count = None
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_lock = None
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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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"""
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def __init__(self, base, init=False, find_root=True):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch. May be a file:// url.
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:param base: Base directory for the branch.
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init -- If True, create new control files in a previously
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:param init: If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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be versioned.
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find_root -- If true and init is false, find the root of the
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:param find_root: If true and init is false, find the root of the
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existing branch containing base.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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"""
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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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elif find_root:
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self.base = find_branch_root(base)
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else:
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if base.startswith("file://"):
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base = base[7:]
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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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.text_store = ImmutableStore(self.controlfilename('text-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 bzrlib.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 bzrlib.errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_mode)
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self._lock_count += 1
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else:
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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self._lock_count = 1
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def lock_read(self):
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if self._lock_mode:
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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else:
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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self._lock_count = 1
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def unlock(self):
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if not self._lock_mode:
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from bzrlib.errors import LockError
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raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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else:
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self._lock.unlock()
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self._lock = None
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self._lock_mode = self._lock_count = None
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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return _relpath(self.base, path)
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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 controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
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rather should be atomically copied and replaced using atomicfile.
300
"""
301
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
305
return file(fn, mode)
306
elif mode == 'r' or mode == 'w':
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# open in binary mode anyhow so there's no newline translation;
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# codecs uses line buffering by default; don't want that.
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import codecs
310
return codecs.open(fn, mode + 'b', 'utf-8',
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buffering=60000)
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else:
313
raise BzrError("invalid controlfile mode %r" % mode)
155
"""Open a control file for this branch"""
156
return file(self.controlfilename(file_or_path), mode)
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def _make_control(self):
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from bzrlib.inventory import Inventory
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318
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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")
322
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
163
"Do not change any files in this directory.")
164
self.controlfile('branch-format', 'wb').write(BZR_BRANCH_FORMAT)
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for d in ('text-store', 'inventory-store', 'revision-store'):
324
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os.mkdir(self.controlfilename(d))
325
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for f in ('revision-history', 'merged-patches',
326
'pending-merged-patches', 'branch-name',
327
'branch-lock',
328
'pending-merges'):
168
'pending-merged-patches', 'branch-name'):
329
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self.controlfile(f, 'w').write('')
330
170
mutter('created control directory in ' + self.base)
331
332
# if we want per-tree root ids then this is the place to set
333
# them; they're not needed for now and so ommitted for
334
# simplicity.
335
f = self.controlfile('inventory','w')
336
bzrlib.xml.serializer_v4.write_inventory(Inventory(), f)
171
Inventory().write_xml(self.controlfile('inventory','w'))
337
172
338
173
339
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def _check_format(self):
347
182
# This ignores newlines so that we can open branches created
348
183
# on Windows from Linux and so on. I think it might be better
349
184
# to always make all internal files in unix format.
350
fmt = self.controlfile('branch-format', 'r').read()
351
fmt = fmt.replace('\r\n', '\n')
185
fmt = self.controlfile('branch-format', 'rb').read()
186
fmt.replace('\r\n', '')
352
187
if fmt != BZR_BRANCH_FORMAT:
353
raise BzrError('sorry, branch format %r not supported' % fmt,
354
['use a different bzr version',
355
'or remove the .bzr directory and "bzr init" again'])
356
357
def get_root_id(self):
358
"""Return the id of this branches root"""
359
inv = self.read_working_inventory()
360
return inv.root.file_id
361
362
def set_root_id(self, file_id):
363
inv = self.read_working_inventory()
364
orig_root_id = inv.root.file_id
365
del inv._byid[inv.root.file_id]
366
inv.root.file_id = file_id
367
inv._byid[inv.root.file_id] = inv.root
368
for fid in inv:
369
entry = inv[fid]
370
if entry.parent_id in (None, orig_root_id):
371
entry.parent_id = inv.root.file_id
372
self._write_inventory(inv)
188
bailout('sorry, branch format %r not supported' % fmt,
189
['use a different bzr version',
190
'or remove the .bzr directory and "bzr init" again'])
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373
192
374
193
def read_working_inventory(self):
375
194
"""Read the working inventory."""
376
from bzrlib.inventory import Inventory
377
self.lock_read()
378
try:
379
# ElementTree does its own conversion from UTF-8, so open in
380
# binary.
381
f = self.controlfile('inventory', 'rb')
382
return bzrlib.xml.serializer_v4.read_inventory(f)
383
finally:
384
self.unlock()
385
195
before = time.time()
196
inv = Inventory.read_xml(self.controlfile('inventory', 'r'))
197
mutter("loaded inventory of %d items in %f"
198
% (len(inv), time.time() - before))
199
return inv
200
386
201
387
202
def _write_inventory(self, inv):
388
203
"""Update the working inventory.
390
205
That is to say, the inventory describing changes underway, that
391
206
will be committed to the next revision.
392
207
"""
393
from bzrlib.atomicfile import AtomicFile
394
395
self.lock_write()
396
try:
397
f = AtomicFile(self.controlfilename('inventory'), 'wb')
398
try:
399
bzrlib.xml.serializer_v4.write_inventory(inv, f)
400
f.commit()
401
finally:
402
f.close()
403
finally:
404
self.unlock()
405
208
## TODO: factor out to atomicfile? is rename safe on windows?
209
## TODO: Maybe some kind of clean/dirty marker on inventory?
210
tmpfname = self.controlfilename('inventory.tmp')
211
tmpf = file(tmpfname, 'w')
212
inv.write_xml(tmpf)
213
tmpf.close()
214
inv_fname = self.controlfilename('inventory')
215
if sys.platform == 'win32':
216
os.remove(inv_fname)
217
os.rename(tmpfname, inv_fname)
406
218
mutter('wrote working inventory')
407
219
408
220
409
221
inventory = property(read_working_inventory, _write_inventory, None,
410
222
"""Inventory for the working copy.""")
411
223
412
224
413
def add(self, files, ids=None):
225
def add(self, files, verbose=False):
414
226
"""Make files versioned.
415
227
416
Note that the command line normally calls smart_add instead,
417
which can automatically recurse.
418
419
228
This puts the files in the Added state, so that they will be
420
229
recorded by the next commit.
421
230
422
files
423
List of paths to add, relative to the base of the tree.
424
425
ids
426
If set, use these instead of automatically generated ids.
427
Must be the same length as the list of files, but may
428
contain None for ids that are to be autogenerated.
429
430
TODO: Perhaps have an option to add the ids even if the files do
431
not (yet) exist.
432
433
TODO: Perhaps yield the ids and paths as they're added.
231
:todo: Perhaps have an option to add the ids even if the files do
232
not (yet) exist.
233
234
:todo: Perhaps return the ids of the files? But then again it
235
is easy to retrieve them if they're needed.
236
237
:todo: Option to specify file id.
238
239
:todo: Adding a directory should optionally recurse down and
240
add all non-ignored children. Perhaps do that in a
241
higher-level method.
242
243
>>> b = ScratchBranch(files=['foo'])
244
>>> 'foo' in b.unknowns()
245
True
246
>>> b.show_status()
247
? foo
248
>>> b.add('foo')
249
>>> 'foo' in b.unknowns()
250
False
251
>>> bool(b.inventory.path2id('foo'))
252
True
253
>>> b.show_status()
254
A foo
255
256
>>> b.add('foo')
257
Traceback (most recent call last):
258
...
259
BzrError: ('foo is already versioned', [])
260
261
>>> b.add(['nothere'])
262
Traceback (most recent call last):
263
BzrError: ('cannot add: not a regular file or directory: nothere', [])
434
264
"""
265
435
266
# TODO: Re-adding a file that is removed in the working copy
436
267
# should probably put it back with the previous ID.
437
if isinstance(files, basestring):
438
assert(ids is None or isinstance(ids, basestring))
268
if isinstance(files, types.StringTypes):
439
269
files = [files]
440
if ids is not None:
441
ids = [ids]
442
443
if ids is None:
444
ids = [None] * len(files)
445
else:
446
assert(len(ids) == len(files))
447
448
self.lock_write()
449
try:
450
inv = self.read_working_inventory()
451
for f,file_id in zip(files, ids):
452
if is_control_file(f):
453
raise BzrError("cannot add control file %s" % quotefn(f))
454
455
fp = splitpath(f)
456
457
if len(fp) == 0:
458
raise BzrError("cannot add top-level %r" % f)
459
460
fullpath = os.path.normpath(self.abspath(f))
461
462
try:
463
kind = file_kind(fullpath)
464
except OSError:
465
# maybe something better?
466
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
467
468
if kind != 'file' and kind != 'directory':
469
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
470
471
if file_id is None:
472
file_id = gen_file_id(f)
473
inv.add_path(f, kind=kind, file_id=file_id)
474
475
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
476
477
self._write_inventory(inv)
478
finally:
479
self.unlock()
480
270
271
inv = self.read_working_inventory()
272
for f in files:
273
if is_control_file(f):
274
bailout("cannot add control file %s" % quotefn(f))
275
276
fp = splitpath(f)
277
278
if len(fp) == 0:
279
bailout("cannot add top-level %r" % f)
280
281
fullpath = os.path.normpath(self.abspath(f))
282
283
try:
284
kind = file_kind(fullpath)
285
except OSError:
286
# maybe something better?
287
bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
288
289
if kind != 'file' and kind != 'directory':
290
bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
291
292
file_id = gen_file_id(f)
293
inv.add_path(f, kind=kind, file_id=file_id)
294
295
if verbose:
296
show_status('A', kind, quotefn(f))
297
298
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
299
300
self._write_inventory(inv)
301
481
302
482
303
def print_file(self, file, revno):
483
304
"""Print `file` to stdout."""
484
self.lock_read()
485
try:
486
tree = self.revision_tree(self.get_rev_id(revno))
487
# use inventory as it was in that revision
488
file_id = tree.inventory.path2id(file)
489
if not file_id:
490
raise BzrError("%r is not present in revision %s" % (file, revno))
491
tree.print_file(file_id)
492
finally:
493
self.unlock()
494
305
tree = self.revision_tree(self.lookup_revision(revno))
306
# use inventory as it was in that revision
307
file_id = tree.inventory.path2id(file)
308
if not file_id:
309
bailout("%r is not present in revision %d" % (file, revno))
310
tree.print_file(file_id)
311
495
312
496
313
def remove(self, files, verbose=False):
497
314
"""Mark nominated files for removal from the inventory.
498
315
499
316
This does not remove their text. This does not run on
500
317
501
TODO: Refuse to remove modified files unless --force is given?
502
503
TODO: Do something useful with directories.
504
505
TODO: Should this remove the text or not? Tough call; not
318
:todo: Refuse to remove modified files unless --force is given?
319
320
>>> b = ScratchBranch(files=['foo'])
321
>>> b.add('foo')
322
>>> b.inventory.has_filename('foo')
323
True
324
>>> b.remove('foo')
325
>>> b.working_tree().has_filename('foo')
326
True
327
>>> b.inventory.has_filename('foo')
328
False
329
330
>>> b = ScratchBranch(files=['foo'])
331
>>> b.add('foo')
332
>>> b.commit('one')
333
>>> b.remove('foo')
334
>>> b.commit('two')
335
>>> b.inventory.has_filename('foo')
336
False
337
>>> b.basis_tree().has_filename('foo')
338
False
339
>>> b.working_tree().has_filename('foo')
340
True
341
342
:todo: Do something useful with directories.
343
344
:todo: Should this remove the text or not? Tough call; not
506
345
removing may be useful and the user can just use use rm, and
507
346
is the opposite of add. Removing it is consistent with most
508
347
other tools. Maybe an option.
509
348
"""
510
349
## TODO: Normalize names
511
350
## TODO: Remove nested loops; better scalability
512
if isinstance(files, basestring):
351
352
if isinstance(files, types.StringTypes):
513
353
files = [files]
514
515
self.lock_write()
516
517
try:
518
tree = self.working_tree()
519
inv = tree.inventory
520
521
# do this before any modifications
522
for f in files:
523
fid = inv.path2id(f)
524
if not fid:
525
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
526
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
527
if verbose:
528
# having remove it, it must be either ignored or unknown
529
if tree.is_ignored(f):
530
new_status = 'I'
531
else:
532
new_status = '?'
533
show_status(new_status, inv[fid].kind, quotefn(f))
534
del inv[fid]
535
536
self._write_inventory(inv)
537
finally:
538
self.unlock()
539
540
541
# FIXME: this doesn't need to be a branch method
542
def set_inventory(self, new_inventory_list):
543
from bzrlib.inventory import Inventory, InventoryEntry
544
inv = Inventory(self.get_root_id())
545
for path, file_id, parent, kind in new_inventory_list:
546
name = os.path.basename(path)
547
if name == "":
548
continue
549
inv.add(InventoryEntry(file_id, name, kind, parent))
354
355
tree = self.working_tree()
356
inv = tree.inventory
357
358
# do this before any modifications
359
for f in files:
360
fid = inv.path2id(f)
361
if not fid:
362
bailout("cannot remove unversioned file %s" % quotefn(f))
363
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
364
if verbose:
365
# having remove it, it must be either ignored or unknown
366
if tree.is_ignored(f):
367
new_status = 'I'
368
else:
369
new_status = '?'
370
show_status(new_status, inv[fid].kind, quotefn(f))
371
del inv[fid]
372
550
373
self._write_inventory(inv)
551
374
552
375
569
392
return self.working_tree().unknowns()
570
393
571
394
572
def append_revision(self, *revision_ids):
573
from bzrlib.atomicfile import AtomicFile
574
575
for revision_id in revision_ids:
576
mutter("add {%s} to revision-history" % revision_id)
577
578
rev_history = self.revision_history()
579
rev_history.extend(revision_ids)
580
581
f = AtomicFile(self.controlfilename('revision-history'))
582
try:
583
for rev_id in rev_history:
584
print >>f, rev_id
585
f.commit()
586
finally:
587
f.close()
588
589
590
def get_revision_xml_file(self, revision_id):
591
"""Return XML file object for revision object."""
592
if not revision_id or not isinstance(revision_id, basestring):
593
raise InvalidRevisionId(revision_id)
594
595
self.lock_read()
596
try:
597
try:
598
return self.revision_store[revision_id]
599
except (IndexError, KeyError):
600
raise bzrlib.errors.NoSuchRevision(self, revision_id)
601
finally:
602
self.unlock()
603
604
605
#deprecated
606
get_revision_xml = get_revision_xml_file
395
def commit(self, message, timestamp=None, timezone=None,
396
committer=None,
397
verbose=False):
398
"""Commit working copy as a new revision.
399
400
The basic approach is to add all the file texts into the
401
store, then the inventory, then make a new revision pointing
402
to that inventory and store that.
403
404
This is not quite safe if the working copy changes during the
405
commit; for the moment that is simply not allowed. A better
406
approach is to make a temporary copy of the files before
407
computing their hashes, and then add those hashes in turn to
408
the inventory. This should mean at least that there are no
409
broken hash pointers. There is no way we can get a snapshot
410
of the whole directory at an instant. This would also have to
411
be robust against files disappearing, moving, etc. So the
412
whole thing is a bit hard.
413
414
:param timestamp: if not None, seconds-since-epoch for a
415
postdated/predated commit.
416
"""
417
418
## TODO: Show branch names
419
420
# TODO: Don't commit if there are no changes, unless forced?
421
422
# First walk over the working inventory; and both update that
423
# and also build a new revision inventory. The revision
424
# inventory needs to hold the text-id, sha1 and size of the
425
# actual file versions committed in the revision. (These are
426
# not present in the working inventory.) We also need to
427
# detect missing/deleted files, and remove them from the
428
# working inventory.
429
430
work_inv = self.read_working_inventory()
431
inv = Inventory()
432
basis = self.basis_tree()
433
basis_inv = basis.inventory
434
missing_ids = []
435
for path, entry in work_inv.iter_entries():
436
## TODO: Cope with files that have gone missing.
437
438
## TODO: Check that the file kind has not changed from the previous
439
## revision of this file (if any).
440
441
entry = entry.copy()
442
443
p = self.abspath(path)
444
file_id = entry.file_id
445
mutter('commit prep file %s, id %r ' % (p, file_id))
446
447
if not os.path.exists(p):
448
mutter(" file is missing, removing from inventory")
449
if verbose:
450
show_status('D', entry.kind, quotefn(path))
451
missing_ids.append(file_id)
452
continue
453
454
# TODO: Handle files that have been deleted
455
456
# TODO: Maybe a special case for empty files? Seems a
457
# waste to store them many times.
458
459
inv.add(entry)
460
461
if basis_inv.has_id(file_id):
462
old_kind = basis_inv[file_id].kind
463
if old_kind != entry.kind:
464
bailout("entry %r changed kind from %r to %r"
465
% (file_id, old_kind, entry.kind))
466
467
if entry.kind == 'directory':
468
if not isdir(p):
469
bailout("%s is entered as directory but not a directory" % quotefn(p))
470
elif entry.kind == 'file':
471
if not isfile(p):
472
bailout("%s is entered as file but is not a file" % quotefn(p))
473
474
content = file(p, 'rb').read()
475
476
entry.text_sha1 = sha_string(content)
477
entry.text_size = len(content)
478
479
old_ie = basis_inv.has_id(file_id) and basis_inv[file_id]
480
if (old_ie
481
and (old_ie.text_size == entry.text_size)
482
and (old_ie.text_sha1 == entry.text_sha1)):
483
## assert content == basis.get_file(file_id).read()
484
entry.text_id = basis_inv[file_id].text_id
485
mutter(' unchanged from previous text_id {%s}' %
486
entry.text_id)
487
488
else:
489
entry.text_id = gen_file_id(entry.name)
490
self.text_store.add(content, entry.text_id)
491
mutter(' stored with text_id {%s}' % entry.text_id)
492
if verbose:
493
if not old_ie:
494
state = 'A'
495
elif (old_ie.name == entry.name
496
and old_ie.parent_id == entry.parent_id):
497
state = 'M'
498
else:
499
state = 'R'
500
501
show_status(state, entry.kind, quotefn(path))
502
503
for file_id in missing_ids:
504
# have to do this later so we don't mess up the iterator.
505
# since parents may be removed before their children we
506
# have to test.
507
508
# FIXME: There's probably a better way to do this; perhaps
509
# the workingtree should know how to filter itself.
510
if work_inv.has_id(file_id):
511
del work_inv[file_id]
512
513
514
inv_id = rev_id = _gen_revision_id(time.time())
515
516
inv_tmp = tempfile.TemporaryFile()
517
inv.write_xml(inv_tmp)
518
inv_tmp.seek(0)
519
self.inventory_store.add(inv_tmp, inv_id)
520
mutter('new inventory_id is {%s}' % inv_id)
521
522
self._write_inventory(work_inv)
523
524
if timestamp == None:
525
timestamp = time.time()
526
527
if committer == None:
528
committer = username()
529
530
if timezone == None:
531
timezone = local_time_offset()
532
533
mutter("building commit log message")
534
rev = Revision(timestamp=timestamp,
535
timezone=timezone,
536
committer=committer,
537
precursor = self.last_patch(),
538
message = message,
539
inventory_id=inv_id,
540
revision_id=rev_id)
541
542
rev_tmp = tempfile.TemporaryFile()
543
rev.write_xml(rev_tmp)
544
rev_tmp.seek(0)
545
self.revision_store.add(rev_tmp, rev_id)
546
mutter("new revision_id is {%s}" % rev_id)
547
548
## XXX: Everything up to here can simply be orphaned if we abort
549
## the commit; it will leave junk files behind but that doesn't
550
## matter.
551
552
## TODO: Read back the just-generated changeset, and make sure it
553
## applies and recreates the right state.
554
555
## TODO: Also calculate and store the inventory SHA1
556
mutter("committing patch r%d" % (self.revno() + 1))
557
558
mutter("append to revision-history")
559
f = self.controlfile('revision-history', 'at')
560
f.write(rev_id + '\n')
561
f.close()
562
563
if verbose:
564
note("commited r%d" % self.revno())
607
565
608
566
609
567
def get_revision(self, revision_id):
610
568
"""Return the Revision object for a named revision"""
611
xml_file = self.get_revision_xml_file(revision_id)
612
613
try:
614
r = bzrlib.xml.serializer_v4.read_revision(xml_file)
615
except SyntaxError, e:
616
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
617
[revision_id,
618
str(e)])
619
569
r = Revision.read_xml(self.revision_store[revision_id])
620
570
assert r.revision_id == revision_id
621
571
return r
622
572
623
573
624
def get_revision_delta(self, revno):
625
"""Return the delta for one revision.
626
627
The delta is relative to its mainline predecessor, or the
628
empty tree for revision 1.
629
"""
630
assert isinstance(revno, int)
631
rh = self.revision_history()
632
if not (1 <= revno <= len(rh)):
633
raise InvalidRevisionNumber(revno)
634
635
# revno is 1-based; list is 0-based
636
637
new_tree = self.revision_tree(rh[revno-1])
638
if revno == 1:
639
old_tree = EmptyTree()
640
else:
641
old_tree = self.revision_tree(rh[revno-2])
642
643
return compare_trees(old_tree, new_tree)
644
645
646
647
def get_revision_sha1(self, revision_id):
648
"""Hash the stored value of a revision, and return it."""
649
# In the future, revision entries will be signed. At that
650
# point, it is probably best *not* to include the signature
651
# in the revision hash. Because that lets you re-sign
652
# the revision, (add signatures/remove signatures) and still
653
# have all hash pointers stay consistent.
654
# But for now, just hash the contents.
655
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
656
657
658
574
def get_inventory(self, inventory_id):
659
575
"""Get Inventory object by hash.
660
576
661
TODO: Perhaps for this and similar methods, take a revision
577
:todo: Perhaps for this and similar methods, take a revision
662
578
parameter which can be either an integer revno or a
663
579
string hash."""
664
from bzrlib.inventory import Inventory
665
666
f = self.get_inventory_xml_file(inventory_id)
667
return bzrlib.xml.serializer_v4.read_inventory(f)
668
669
670
def get_inventory_xml(self, inventory_id):
671
"""Get inventory XML as a file object."""
672
return self.inventory_store[inventory_id]
673
674
get_inventory_xml_file = get_inventory_xml
675
676
677
def get_inventory_sha1(self, inventory_id):
678
"""Return the sha1 hash of the inventory entry
679
"""
680
return sha_file(self.get_inventory_xml(inventory_id))
580
i = Inventory.read_xml(self.inventory_store[inventory_id])
581
return i
681
582
682
583
683
584
def get_revision_inventory(self, revision_id):
684
585
"""Return inventory of a past revision."""
685
# bzr 0.0.6 imposes the constraint that the inventory_id
686
# must be the same as its revision, so this is trivial.
687
586
if revision_id == None:
688
from bzrlib.inventory import Inventory
689
return Inventory(self.get_root_id())
587
return Inventory()
690
588
else:
691
return self.get_inventory(revision_id)
589
return self.get_inventory(self.get_revision(revision_id).inventory_id)
692
590
693
591
694
592
def revision_history(self):
697
595
>>> ScratchBranch().revision_history()
698
596
[]
699
597
"""
700
self.lock_read()
701
try:
702
return [l.rstrip('\r\n') for l in
703
self.controlfile('revision-history', 'r').readlines()]
704
finally:
705
self.unlock()
706
707
708
def common_ancestor(self, other, self_revno=None, other_revno=None):
709
"""
710
>>> from bzrlib.commit import commit
711
>>> sb = ScratchBranch(files=['foo', 'foo~'])
712
>>> sb.common_ancestor(sb) == (None, None)
713
True
714
>>> commit(sb, "Committing first revision", verbose=False)
715
>>> sb.common_ancestor(sb)[0]
716
1
717
>>> clone = sb.clone()
718
>>> commit(sb, "Committing second revision", verbose=False)
719
>>> sb.common_ancestor(sb)[0]
720
2
721
>>> sb.common_ancestor(clone)[0]
722
1
723
>>> commit(clone, "Committing divergent second revision",
724
... verbose=False)
725
>>> sb.common_ancestor(clone)[0]
726
1
727
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
728
True
729
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
730
True
731
>>> clone2 = sb.clone()
732
>>> sb.common_ancestor(clone2)[0]
733
2
734
>>> sb.common_ancestor(clone2, self_revno=1)[0]
735
1
736
>>> sb.common_ancestor(clone2, other_revno=1)[0]
737
1
738
"""
739
my_history = self.revision_history()
740
other_history = other.revision_history()
741
if self_revno is None:
742
self_revno = len(my_history)
743
if other_revno is None:
744
other_revno = len(other_history)
745
indices = range(min((self_revno, other_revno)))
746
indices.reverse()
747
for r in indices:
748
if my_history[r] == other_history[r]:
749
return r+1, my_history[r]
750
return None, None
598
return [chomp(l) for l in self.controlfile('revision-history').readlines()]
751
599
752
600
753
601
def revno(self):
755
603
756
604
That is equivalent to the number of revisions committed to
757
605
this branch.
606
607
>>> b = ScratchBranch()
608
>>> b.revno()
609
0
610
>>> b.commit('no foo')
611
>>> b.revno()
612
1
758
613
"""
759
614
return len(self.revision_history())
760
615
761
616
762
617
def last_patch(self):
763
618
"""Return last patch hash, or None if no history.
619
620
>>> ScratchBranch().last_patch() == None
621
True
764
622
"""
765
623
ph = self.revision_history()
766
624
if ph:
767
625
return ph[-1]
768
626
else:
769
627
return None
770
771
772
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
773
"""
774
If self and other have not diverged, return a list of the revisions
775
present in other, but missing from self.
776
777
>>> from bzrlib.commit import commit
778
>>> bzrlib.trace.silent = True
779
>>> br1 = ScratchBranch()
780
>>> br2 = ScratchBranch()
781
>>> br1.missing_revisions(br2)
782
[]
783
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
784
>>> br1.missing_revisions(br2)
785
[u'REVISION-ID-1']
786
>>> br2.missing_revisions(br1)
787
[]
788
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
789
>>> br1.missing_revisions(br2)
790
[]
791
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
792
>>> br1.missing_revisions(br2)
793
[u'REVISION-ID-2A']
794
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
795
>>> br1.missing_revisions(br2)
796
Traceback (most recent call last):
797
DivergedBranches: These branches have diverged.
798
"""
799
self_history = self.revision_history()
800
self_len = len(self_history)
801
other_history = other.revision_history()
802
other_len = len(other_history)
803
common_index = min(self_len, other_len) -1
804
if common_index >= 0 and \
805
self_history[common_index] != other_history[common_index]:
806
raise DivergedBranches(self, other)
807
808
if stop_revision is None:
809
stop_revision = other_len
810
elif stop_revision > other_len:
811
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
812
813
return other_history[self_len:stop_revision]
814
815
816
def update_revisions(self, other, stop_revision=None):
817
"""Pull in all new revisions from other branch.
818
"""
819
from bzrlib.fetch import greedy_fetch
820
from bzrlib.revision import get_intervening_revisions
821
822
pb = bzrlib.ui.ui_factory.progress_bar()
823
pb.update('comparing histories')
824
if stop_revision is None:
825
other_revision = other.last_patch()
826
else:
827
other_revision = other.get_rev_id(stop_revision)
828
count = greedy_fetch(self, other, other_revision, pb)[0]
829
try:
830
revision_ids = self.missing_revisions(other, stop_revision)
831
except DivergedBranches, e:
832
try:
833
revision_ids = get_intervening_revisions(self.last_patch(),
834
other_revision, self)
835
assert self.last_patch() not in revision_ids
836
except bzrlib.errors.NotAncestor:
837
raise e
838
839
self.append_revision(*revision_ids)
840
pb.clear()
841
842
def install_revisions(self, other, revision_ids, pb):
843
if hasattr(other.revision_store, "prefetch"):
844
other.revision_store.prefetch(revision_ids)
845
if hasattr(other.inventory_store, "prefetch"):
846
inventory_ids = []
847
for rev_id in revision_ids:
848
try:
849
revision = other.get_revision(rev_id).inventory_id
850
inventory_ids.append(revision)
851
except bzrlib.errors.NoSuchRevision:
852
pass
853
other.inventory_store.prefetch(inventory_ids)
854
855
if pb is None:
856
pb = bzrlib.ui.ui_factory.progress_bar()
857
858
revisions = []
859
needed_texts = set()
860
i = 0
861
862
failures = set()
863
for i, rev_id in enumerate(revision_ids):
864
pb.update('fetching revision', i+1, len(revision_ids))
865
try:
866
rev = other.get_revision(rev_id)
867
except bzrlib.errors.NoSuchRevision:
868
failures.add(rev_id)
869
continue
870
871
revisions.append(rev)
872
inv = other.get_inventory(str(rev.inventory_id))
873
for key, entry in inv.iter_entries():
874
if entry.text_id is None:
875
continue
876
if entry.text_id not in self.text_store:
877
needed_texts.add(entry.text_id)
878
879
pb.clear()
880
881
count, cp_fail = self.text_store.copy_multi(other.text_store,
882
needed_texts)
883
#print "Added %d texts." % count
884
inventory_ids = [ f.inventory_id for f in revisions ]
885
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
886
inventory_ids)
887
#print "Added %d inventories." % count
888
revision_ids = [ f.revision_id for f in revisions]
889
890
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
891
revision_ids,
892
permit_failure=True)
893
assert len(cp_fail) == 0
894
return count, failures
895
896
897
def commit(self, *args, **kw):
898
from bzrlib.commit import commit
899
commit(self, *args, **kw)
900
901
902
def revision_id_to_revno(self, revision_id):
903
"""Given a revision id, return its revno"""
904
history = self.revision_history()
905
try:
906
return history.index(revision_id) + 1
907
except ValueError:
908
raise bzrlib.errors.NoSuchRevision(self, revision_id)
909
910
911
def get_rev_id(self, revno, history=None):
912
"""Find the revision id of the specified revno."""
628
629
630
def lookup_revision(self, revno):
631
"""Return revision hash for revision number."""
913
632
if revno == 0:
914
633
return None
915
if history is None:
916
history = self.revision_history()
917
elif revno <= 0 or revno > len(history):
918
raise bzrlib.errors.NoSuchRevision(self, revno)
919
return history[revno - 1]
634
635
try:
636
# list is 0-based; revisions are 1-based
637
return self.revision_history()[revno-1]
638
except IndexError:
639
raise BzrError("no such revision %s" % revno)
920
640
921
641
922
642
def revision_tree(self, revision_id):
924
644
925
645
`revision_id` may be None for the null revision, in which case
926
646
an `EmptyTree` is returned."""
927
# TODO: refactor this to use an existing revision object
928
# so we don't need to read it in twice.
647
929
648
if revision_id == None:
930
649
return EmptyTree()
931
650
else:
935
654
936
655
def working_tree(self):
937
656
"""Return a `Tree` for the working copy."""
938
from bzrlib.workingtree import WorkingTree
939
657
return WorkingTree(self.base, self.read_working_inventory())
940
658
941
659
943
661
"""Return `Tree` object for last revision.
944
662
945
663
If there are no revisions yet, return an `EmptyTree`.
664
665
>>> b = ScratchBranch(files=['foo'])
666
>>> b.basis_tree().has_filename('foo')
667
False
668
>>> b.working_tree().has_filename('foo')
669
True
670
>>> b.add('foo')
671
>>> b.commit('add foo')
672
>>> b.basis_tree().has_filename('foo')
673
True
946
674
"""
947
675
r = self.last_patch()
948
676
if r == None:
952
680
953
681
954
682
683
def write_log(self, show_timezone='original'):
684
"""Write out human-readable log of commits to this branch
685
686
:param utc: If true, show dates in universal time, not local time."""
687
## TODO: Option to choose either original, utc or local timezone
688
revno = 1
689
precursor = None
690
for p in self.revision_history():
691
print '-' * 40
692
print 'revno:', revno
693
## TODO: Show hash if --id is given.
694
##print 'revision-hash:', p
695
rev = self.get_revision(p)
696
print 'committer:', rev.committer
697
print 'timestamp: %s' % (format_date(rev.timestamp, rev.timezone or 0,
698
show_timezone))
699
700
## opportunistic consistency check, same as check_patch_chaining
701
if rev.precursor != precursor:
702
bailout("mismatched precursor!")
703
704
print 'message:'
705
if not rev.message:
706
print ' (no message)'
707
else:
708
for l in rev.message.split('\n'):
709
print ' ' + l
710
711
revno += 1
712
precursor = p
713
714
955
715
def rename_one(self, from_rel, to_rel):
956
"""Rename one file.
957
958
This can change the directory or the filename or both.
959
"""
960
self.lock_write()
716
tree = self.working_tree()
717
inv = tree.inventory
718
if not tree.has_filename(from_rel):
719
bailout("can't rename: old working file %r does not exist" % from_rel)
720
if tree.has_filename(to_rel):
721
bailout("can't rename: new working file %r already exists" % to_rel)
722
723
file_id = inv.path2id(from_rel)
724
if file_id == None:
725
bailout("can't rename: old name %r is not versioned" % from_rel)
726
727
if inv.path2id(to_rel):
728
bailout("can't rename: new name %r is already versioned" % to_rel)
729
730
to_dir, to_tail = os.path.split(to_rel)
731
to_dir_id = inv.path2id(to_dir)
732
if to_dir_id == None and to_dir != '':
733
bailout("can't determine destination directory id for %r" % to_dir)
734
735
mutter("rename_one:")
736
mutter(" file_id {%s}" % file_id)
737
mutter(" from_rel %r" % from_rel)
738
mutter(" to_rel %r" % to_rel)
739
mutter(" to_dir %r" % to_dir)
740
mutter(" to_dir_id {%s}" % to_dir_id)
741
742
inv.rename(file_id, to_dir_id, to_tail)
743
744
print "%s => %s" % (from_rel, to_rel)
745
746
from_abs = self.abspath(from_rel)
747
to_abs = self.abspath(to_rel)
961
748
try:
962
tree = self.working_tree()
963
inv = tree.inventory
964
if not tree.has_filename(from_rel):
965
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
966
if tree.has_filename(to_rel):
967
raise BzrError("can't rename: new working file %r already exists" % to_rel)
968
969
file_id = inv.path2id(from_rel)
970
if file_id == None:
971
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
972
973
if inv.path2id(to_rel):
974
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
975
976
to_dir, to_tail = os.path.split(to_rel)
977
to_dir_id = inv.path2id(to_dir)
978
if to_dir_id == None and to_dir != '':
979
raise BzrError("can't determine destination directory id for %r" % to_dir)
980
981
mutter("rename_one:")
982
mutter(" file_id {%s}" % file_id)
983
mutter(" from_rel %r" % from_rel)
984
mutter(" to_rel %r" % to_rel)
985
mutter(" to_dir %r" % to_dir)
986
mutter(" to_dir_id {%s}" % to_dir_id)
987
988
inv.rename(file_id, to_dir_id, to_tail)
989
990
from_abs = self.abspath(from_rel)
991
to_abs = self.abspath(to_rel)
992
try:
993
os.rename(from_abs, to_abs)
994
except OSError, e:
995
raise BzrError("failed to rename %r to %r: %s"
996
% (from_abs, to_abs, e[1]),
997
["rename rolled back"])
998
999
self._write_inventory(inv)
1000
finally:
1001
self.unlock()
749
os.rename(from_abs, to_abs)
750
except OSError, e:
751
bailout("failed to rename %r to %r: %s"
752
% (from_abs, to_abs, e[1]),
753
["rename rolled back"])
754
755
self._write_inventory(inv)
756
1002
757
1003
758
1004
759
def move(self, from_paths, to_name):
1011
766
1012
767
Note that to_name is only the last component of the new name;
1013
768
this doesn't change the directory.
1014
1015
This returns a list of (from_path, to_path) pairs for each
1016
entry that is moved.
1017
"""
1018
result = []
1019
self.lock_write()
1020
try:
1021
## TODO: Option to move IDs only
1022
assert not isinstance(from_paths, basestring)
1023
tree = self.working_tree()
1024
inv = tree.inventory
1025
to_abs = self.abspath(to_name)
1026
if not isdir(to_abs):
1027
raise BzrError("destination %r is not a directory" % to_abs)
1028
if not tree.has_filename(to_name):
1029
raise BzrError("destination %r not in working directory" % to_abs)
1030
to_dir_id = inv.path2id(to_name)
1031
if to_dir_id == None and to_name != '':
1032
raise BzrError("destination %r is not a versioned directory" % to_name)
1033
to_dir_ie = inv[to_dir_id]
1034
if to_dir_ie.kind not in ('directory', 'root_directory'):
1035
raise BzrError("destination %r is not a directory" % to_abs)
1036
1037
to_idpath = inv.get_idpath(to_dir_id)
1038
1039
for f in from_paths:
1040
if not tree.has_filename(f):
1041
raise BzrError("%r does not exist in working tree" % f)
1042
f_id = inv.path2id(f)
1043
if f_id == None:
1044
raise BzrError("%r is not versioned" % f)
1045
name_tail = splitpath(f)[-1]
1046
dest_path = appendpath(to_name, name_tail)
1047
if tree.has_filename(dest_path):
1048
raise BzrError("destination %r already exists" % dest_path)
1049
if f_id in to_idpath:
1050
raise BzrError("can't move %r to a subdirectory of itself" % f)
1051
1052
# OK, so there's a race here, it's possible that someone will
1053
# create a file in this interval and then the rename might be
1054
# left half-done. But we should have caught most problems.
1055
1056
for f in from_paths:
1057
name_tail = splitpath(f)[-1]
1058
dest_path = appendpath(to_name, name_tail)
1059
result.append((f, dest_path))
1060
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1061
try:
1062
os.rename(self.abspath(f), self.abspath(dest_path))
1063
except OSError, e:
1064
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1065
["rename rolled back"])
1066
1067
self._write_inventory(inv)
1068
finally:
1069
self.unlock()
1070
1071
return result
1072
1073
1074
def revert(self, filenames, old_tree=None, backups=True):
1075
"""Restore selected files to the versions from a previous tree.
1076
1077
backups
1078
If true (default) backups are made of files before
1079
they're renamed.
1080
"""
1081
from bzrlib.errors import NotVersionedError, BzrError
1082
from bzrlib.atomicfile import AtomicFile
1083
from bzrlib.osutils import backup_file
1084
1085
inv = self.read_working_inventory()
1086
if old_tree is None:
1087
old_tree = self.basis_tree()
1088
old_inv = old_tree.inventory
1089
1090
nids = []
1091
for fn in filenames:
1092
file_id = inv.path2id(fn)
1093
if not file_id:
1094
raise NotVersionedError("not a versioned file", fn)
1095
if not old_inv.has_id(file_id):
1096
raise BzrError("file not present in old tree", fn, file_id)
1097
nids.append((fn, file_id))
1098
1099
# TODO: Rename back if it was previously at a different location
1100
1101
# TODO: If given a directory, restore the entire contents from
1102
# the previous version.
1103
1104
# TODO: Make a backup to a temporary file.
1105
1106
# TODO: If the file previously didn't exist, delete it?
1107
for fn, file_id in nids:
1108
backup_file(fn)
1109
1110
f = AtomicFile(fn, 'wb')
1111
try:
1112
f.write(old_tree.get_file(file_id).read())
1113
f.commit()
1114
finally:
1115
f.close()
1116
1117
1118
def pending_merges(self):
1119
"""Return a list of pending merges.
1120
1121
These are revisions that have been merged into the working
1122
directory but not yet committed.
1123
"""
1124
cfn = self.controlfilename('pending-merges')
1125
if not os.path.exists(cfn):
1126
return []
1127
p = []
1128
for l in self.controlfile('pending-merges', 'r').readlines():
1129
p.append(l.rstrip('\n'))
1130
return p
1131
1132
1133
def add_pending_merge(self, revision_id):
1134
from bzrlib.revision import validate_revision_id
1135
1136
validate_revision_id(revision_id)
1137
1138
p = self.pending_merges()
1139
if revision_id in p:
1140
return
1141
p.append(revision_id)
1142
self.set_pending_merges(p)
1143
1144
1145
def set_pending_merges(self, rev_list):
1146
from bzrlib.atomicfile import AtomicFile
1147
self.lock_write()
1148
try:
1149
f = AtomicFile(self.controlfilename('pending-merges'))
1150
try:
1151
for l in rev_list:
1152
print >>f, l
1153
f.commit()
1154
finally:
1155
f.close()
1156
finally:
1157
self.unlock()
1158
1159
1160
def get_parent(self):
1161
"""Return the parent location of the branch.
1162
1163
This is the default location for push/pull/missing. The usual
1164
pattern is that the user can override it by specifying a
1165
location.
1166
"""
1167
import errno
1168
_locs = ['parent', 'pull', 'x-pull']
1169
for l in _locs:
1170
try:
1171
return self.controlfile(l, 'r').read().strip('\n')
1172
except IOError, e:
1173
if e.errno != errno.ENOENT:
1174
raise
1175
return None
1176
1177
1178
def set_parent(self, url):
1179
# TODO: Maybe delete old location files?
1180
from bzrlib.atomicfile import AtomicFile
1181
self.lock_write()
1182
try:
1183
f = AtomicFile(self.controlfilename('parent'))
1184
try:
1185
f.write(url + '\n')
1186
f.commit()
1187
finally:
1188
f.close()
1189
finally:
1190
self.unlock()
1191
1192
def check_revno(self, revno):
1193
"""\
1194
Check whether a revno corresponds to any revision.
1195
Zero (the NULL revision) is considered valid.
1196
"""
1197
if revno != 0:
1198
self.check_real_revno(revno)
1199
1200
def check_real_revno(self, revno):
1201
"""\
1202
Check whether a revno corresponds to a real revision.
1203
Zero (the NULL revision) is considered invalid
1204
"""
1205
if revno < 1 or revno > self.revno():
1206
raise InvalidRevisionNumber(revno)
1207
1208
1209
1210
1211
1212
class ScratchBranch(LocalBranch):
769
"""
770
## TODO: Option to move IDs only
771
assert not isinstance(from_paths, basestring)
772
tree = self.working_tree()
773
inv = tree.inventory
774
to_abs = self.abspath(to_name)
775
if not isdir(to_abs):
776
bailout("destination %r is not a directory" % to_abs)
777
if not tree.has_filename(to_name):
778
bailout("destination %r not in working directory" % to_abs)
779
to_dir_id = inv.path2id(to_name)
780
if to_dir_id == None and to_name != '':
781
bailout("destination %r is not a versioned directory" % to_name)
782
to_dir_ie = inv[to_dir_id]
783
if to_dir_ie.kind not in ('directory', 'root_directory'):
784
bailout("destination %r is not a directory" % to_abs)
785
786
to_idpath = Set(inv.get_idpath(to_dir_id))
787
788
for f in from_paths:
789
if not tree.has_filename(f):
790
bailout("%r does not exist in working tree" % f)
791
f_id = inv.path2id(f)
792
if f_id == None:
793
bailout("%r is not versioned" % f)
794
name_tail = splitpath(f)[-1]
795
dest_path = appendpath(to_name, name_tail)
796
if tree.has_filename(dest_path):
797
bailout("destination %r already exists" % dest_path)
798
if f_id in to_idpath:
799
bailout("can't move %r to a subdirectory of itself" % f)
800
801
# OK, so there's a race here, it's possible that someone will
802
# create a file in this interval and then the rename might be
803
# left half-done. But we should have caught most problems.
804
805
for f in from_paths:
806
name_tail = splitpath(f)[-1]
807
dest_path = appendpath(to_name, name_tail)
808
print "%s => %s" % (f, dest_path)
809
inv.rename(inv.path2id(f), to_dir_id, name_tail)
810
try:
811
os.rename(self.abspath(f), self.abspath(dest_path))
812
except OSError, e:
813
bailout("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
814
["rename rolled back"])
815
816
self._write_inventory(inv)
817
818
819
820
def show_status(self, show_all=False):
821
"""Display single-line status for non-ignored working files.
822
823
The list is show sorted in order by file name.
824
825
>>> b = ScratchBranch(files=['foo', 'foo~'])
826
>>> b.show_status()
827
? foo
828
>>> b.add('foo')
829
>>> b.show_status()
830
A foo
831
>>> b.commit("add foo")
832
>>> b.show_status()
833
>>> os.unlink(b.abspath('foo'))
834
>>> b.show_status()
835
D foo
836
837
838
:todo: Get state for single files.
839
840
:todo: Perhaps show a slash at the end of directory names.
841
842
"""
843
844
# We have to build everything into a list first so that it can
845
# sorted by name, incorporating all the different sources.
846
847
# FIXME: Rather than getting things in random order and then sorting,
848
# just step through in order.
849
850
# Interesting case: the old ID for a file has been removed,
851
# but a new file has been created under that name.
852
853
old = self.basis_tree()
854
new = self.working_tree()
855
856
for fs, fid, oldname, newname, kind in diff_trees(old, new):
857
if fs == 'R':
858
show_status(fs, kind,
859
oldname + ' => ' + newname)
860
elif fs == 'A' or fs == 'M':
861
show_status(fs, kind, newname)
862
elif fs == 'D':
863
show_status(fs, kind, oldname)
864
elif fs == '.':
865
if show_all:
866
show_status(fs, kind, newname)
867
elif fs == 'I':
868
if show_all:
869
show_status(fs, kind, newname)
870
elif fs == '?':
871
show_status(fs, kind, newname)
872
else:
873
bailout("wierd file state %r" % ((fs, fid),))
874
875
876
877
class ScratchBranch(Branch):
1213
878
"""Special test class: a branch that cleans up after itself.
1214
879
1215
880
>>> b = ScratchBranch()
1216
881
>>> isdir(b.base)
1217
882
True
1218
883
>>> bd = b.base
1219
>>> b.destroy()
884
>>> del b
1220
885
>>> isdir(bd)
1221
886
False
1222
887
"""
1223
def __init__(self, files=[], dirs=[], base=None):
888
def __init__(self, files=[], dirs=[]):
1224
889
"""Make a test branch.
1225
890
1226
891
This creates a temporary directory and runs init-tree in it.
1227
892
1228
893
If any files are listed, they are created in the working copy.
1229
894
"""
1230
from tempfile import mkdtemp
1231
init = False
1232
if base is None:
1233
base = mkdtemp()
1234
init = True
1235
LocalBranch.__init__(self, base, init=init)
895
Branch.__init__(self, tempfile.mkdtemp(), init=True)
1236
896
for d in dirs:
1237
897
os.mkdir(self.abspath(d))
1238
898
1240
900
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1241
901
1242
902
1243
def clone(self):
1244
"""
1245
>>> orig = ScratchBranch(files=["file1", "file2"])
1246
>>> clone = orig.clone()
1247
>>> os.path.samefile(orig.base, clone.base)
1248
False
1249
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1250
True
1251
"""
1252
from shutil import copytree
1253
from tempfile import mkdtemp
1254
base = mkdtemp()
1255
os.rmdir(base)
1256
copytree(self.base, base, symlinks=True)
1257
return ScratchBranch(base=base)
1258
1259
1260
1261
903
def __del__(self):
1262
self.destroy()
1263
1264
def destroy(self):
1265
904
"""Destroy the test branch, removing the scratch directory."""
1266
from shutil import rmtree
1267
905
try:
1268
if self.base:
1269
mutter("delete ScratchBranch %s" % self.base)
1270
rmtree(self.base)
1271
except OSError, e:
906
shutil.rmtree(self.base)
907
except OSError:
1272
908
# Work around for shutil.rmtree failing on Windows when
1273
909
# readonly files are encountered
1274
mutter("hit exception in destroying ScratchBranch: %s" % e)
1275
910
for root, dirs, files in os.walk(self.base, topdown=False):
1276
911
for name in files:
1277
912
os.chmod(os.path.join(root, name), 0700)
1278
rmtree(self.base)
1279
self.base = None
913
shutil.rmtree(self.base)
1280
914
1281
915
1282
916
1299
933
1300
934
1301
935
936
def _gen_revision_id(when):
937
"""Return new revision-id."""
938
s = '%s-%s-' % (user_email(), compact_date(when))
939
s += hexlify(rand_bytes(8))
940
return s
941
942
1302
943
def gen_file_id(name):
1303
944
"""Return new file id.
1304
945
1305
946
This should probably generate proper UUIDs, but for the moment we
1306
947
cope with just randomness because running uuidgen every time is
1307
948
slow."""
1308
import re
1309
from binascii import hexlify
1310
from time import time
1311
1312
# get last component
1313
949
idx = name.rfind('/')
1314
950
if idx != -1:
1315
951
name = name[idx+1 : ]
1316
idx = name.rfind('\\')
1317
if idx != -1:
1318
name = name[idx+1 : ]
1319
952
1320
# make it not a hidden file
1321
953
name = name.lstrip('.')
1322
954
1323
# remove any wierd characters; we don't escape them but rather
1324
# just pull them out
1325
name = re.sub(r'[^\w.]', '', name)
1326
1327
955
s = hexlify(rand_bytes(8))
1328
return '-'.join((name, compact_date(time()), s))
1329
1330
1331
def gen_root_id():
1332
"""Return a new tree-root file id."""
1333
return gen_file_id('TREE_ROOT')
1334
1335
1336
def copy_branch(branch_from, to_location, revision=None):
1337
"""Copy branch_from into the existing directory to_location.
1338
1339
revision
1340
If not None, only revisions up to this point will be copied.
1341
The head of the new branch will be that revision.
1342
1343
to_location
1344
The name of a local directory that exists but is empty.
1345
"""
1346
from bzrlib.merge import merge
1347
from bzrlib.revisionspec import RevisionSpec
1348
1349
assert isinstance(branch_from, Branch)
1350
assert isinstance(to_location, basestring)
1351
1352
br_to = Branch.initialize(to_location)
1353
br_to.set_root_id(branch_from.get_root_id())
1354
if revision is None:
1355
revno = branch_from.revno()
1356
else:
1357
revno, rev_id = RevisionSpec(revision).in_history(branch_from)
1358
br_to.update_revisions(branch_from, stop_revision=revno)
1359
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1360
check_clean=False, ignore_zero=True)
1361
br_to.set_parent(branch_from.base)
1362
return br_to
956
return '-'.join((name, compact_date(time.time()), s))
957
958
Loggerhead is a web-based interface for Breezy
Version: 2.0.1