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Viewing changes to bzrlib/branch.py

Merge the bulg of the fix for 320119 and fix NEWS entrieS

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bzrlib/branch.py
63
63
BZR_BRANCH_FORMAT_6 = "Bazaar Branch Format 6 (bzr 0.15)\n"
64
64
 
65
65
 
66
 
class Branch(bzrdir.ControlComponent):
 
66
# TODO: Maybe include checks for common corruption of newlines, etc?
 
67
 
 
68
# TODO: Some operations like log might retrieve the same revisions
 
69
# repeatedly to calculate deltas.  We could perhaps have a weakref
 
70
# cache in memory to make this faster.  In general anything can be
 
71
# cached in memory between lock and unlock operations. .. nb thats
 
72
# what the transaction identity map provides
 
73
 
 
74
 
 
75
######################################################################
 
76
# branch objects
 
77
 
 
78
class Branch(object):
67
79
    """Branch holding a history of revisions.
68
80
 
69
 
    :ivar base:
70
 
        Base directory/url of the branch; using control_url and
71
 
        control_transport is more standardized.
 
81
    base
 
82
        Base directory/url of the branch.
72
83
 
73
84
    hooks: An instance of BranchHooks.
74
85
    """
76
87
    # - RBC 20060112
77
88
    base = None
78
89
 
79
 
    @property
80
 
    def control_transport(self):
81
 
        return self._transport
82
 
 
83
 
    @property
84
 
    def user_transport(self):
85
 
        return self.bzrdir.user_transport
86
 
 
87
90
    def __init__(self, *ignored, **ignored_too):
88
91
        self.tags = self._format.make_tags(self)
89
92
        self._revision_history_cache = None
104
107
        """Activate the branch/repository from url as a fallback repository."""
105
108
        repo = self._get_fallback_repository(url)
106
109
        if repo.has_same_location(self.repository):
107
 
            raise errors.UnstackableLocationError(self.user_url, url)
 
110
            raise errors.UnstackableLocationError(self.base, url)
108
111
        self.repository.add_fallback_repository(repo)
109
112
 
110
113
    def break_lock(self):
417
420
            * 'include' - the stop revision is the last item in the result
418
421
            * 'with-merges' - include the stop revision and all of its
419
422
              merged revisions in the result
420
 
            * 'with-merges-without-common-ancestry' - filter out revisions 
421
 
              that are in both ancestries
422
423
        :param direction: either 'reverse' or 'forward':
423
424
            * reverse means return the start_revision_id first, i.e.
424
425
              start at the most recent revision and go backwards in history
502
503
            # We want to exclude all revisions that are already part of the
503
504
            # stop_revision_id ancestry.
504
505
            graph = self.repository.get_graph()
505
 
            ancestors = graph.find_unique_ancestors(start_revision_id,
506
 
                                                    [stop_revision_id])
507
506
            for node in rev_iter:
508
507
                rev_id = node.key[-1]
509
 
                if rev_id not in ancestors:
 
508
                if graph.is_ancestor(rev_id, stop_revision_id):
510
509
                    continue
511
510
                yield (rev_id, node.merge_depth, node.revno,
512
511
                       node.end_of_merge)
605
604
        :param other: The branch to bind to
606
605
        :type other: Branch
607
606
        """
608
 
        raise errors.UpgradeRequired(self.user_url)
 
607
        raise errors.UpgradeRequired(self.base)
609
608
 
610
609
    def set_append_revisions_only(self, enabled):
611
610
        if not self._format.supports_set_append_revisions_only():
612
 
            raise errors.UpgradeRequired(self.user_url)
 
611
            raise errors.UpgradeRequired(self.base)
613
612
        if enabled:
614
613
            value = 'True'
615
614
        else:
663
662
    def get_old_bound_location(self):
664
663
        """Return the URL of the branch we used to be bound to
665
664
        """
666
 
        raise errors.UpgradeRequired(self.user_url)
 
665
        raise errors.UpgradeRequired(self.base)
667
666
 
668
667
    def get_commit_builder(self, parents, config=None, timestamp=None,
669
668
                           timezone=None, committer=None, revprops=None,
747
746
            stacking.
748
747
        """
749
748
        if not self._format.supports_stacking():
750
 
            raise errors.UnstackableBranchFormat(self._format, self.user_url)
 
749
            raise errors.UnstackableBranchFormat(self._format, self.base)
751
750
        # XXX: Changing from one fallback repository to another does not check
752
751
        # that all the data you need is present in the new fallback.
753
752
        # Possibly it should.
904
903
 
905
904
    def unbind(self):
906
905
        """Older format branches cannot bind or unbind."""
907
 
        raise errors.UpgradeRequired(self.user_url)
 
906
        raise errors.UpgradeRequired(self.base)
908
907
 
909
908
    def last_revision(self):
910
909
        """Return last revision id, or NULL_REVISION."""
1070
1069
        try:
1071
1070
            return urlutils.join(self.base[:-1], parent)
1072
1071
        except errors.InvalidURLJoin, e:
1073
 
            raise errors.InaccessibleParent(parent, self.user_url)
 
1072
            raise errors.InaccessibleParent(parent, self.base)
1074
1073
 
1075
1074
    def _get_parent_location(self):
1076
1075
        raise NotImplementedError(self._get_parent_location)
1554
1553
        """Return the short format description for this format."""
1555
1554
        raise NotImplementedError(self.get_format_description)
1556
1555
 
1557
 
    def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1558
 
        hooks = Branch.hooks['post_branch_init']
1559
 
        if not hooks:
1560
 
            return
1561
 
        params = BranchInitHookParams(self, a_bzrdir, name, branch)
1562
 
        for hook in hooks:
1563
 
            hook(params)
1564
 
 
1565
1556
    def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1566
1557
                           lock_type='metadir', set_format=True):
1567
1558
        """Initialize a branch in a bzrdir, with specified files
1575
1566
            elsewhere)
1576
1567
        :return: a branch in this format
1577
1568
        """
1578
 
        mutter('creating branch %r in %s', self, a_bzrdir.user_url)
 
1569
        mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1579
1570
        branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1580
1571
        lock_map = {
1581
1572
            'metadir': ('lock', lockdir.LockDir),
1603
1594
        finally:
1604
1595
            if lock_taken:
1605
1596
                control_files.unlock()
1606
 
        branch = self.open(a_bzrdir, name, _found=True)
1607
 
        self._run_post_branch_init_hooks(a_bzrdir, name, branch)
1608
 
        return branch
 
1597
        return self.open(a_bzrdir, name, _found=True)
1609
1598
 
1610
1599
    def initialize(self, a_bzrdir, name=None):
1611
1600
        """Create a branch of this format in a_bzrdir.
1771
1760
            "should return a tag name or None if no tag name could be "
1772
1761
            "determined. The first non-None tag name returned will be used.",
1773
1762
            (2, 2), None))
1774
 
        self.create_hook(HookPoint('post_branch_init',
1775
 
            "Called after new branch initialization completes. "
1776
 
            "post_branch_init is called with a "
1777
 
            "bzrlib.branch.BranchInitHookParams. "
1778
 
            "Note that init, branch and checkout (both heavyweight and "
1779
 
            "lightweight) will all trigger this hook.", (2, 2), None))
1780
 
        self.create_hook(HookPoint('post_switch',
1781
 
            "Called after a checkout switches branch. "
1782
 
            "post_switch is called with a "
1783
 
            "bzrlib.branch.SwitchHookParams.", (2, 2), None))
1784
1763
 
1785
1764
 
1786
1765
 
1826
1805
            self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1827
1806
 
1828
1807
 
1829
 
class BranchInitHookParams(object):
1830
 
    """Object holding parameters passed to *_branch_init hooks.
1831
 
 
1832
 
    There are 4 fields that hooks may wish to access:
1833
 
 
1834
 
    :ivar format: the branch format
1835
 
    :ivar bzrdir: the BzrDir where the branch will be/has been initialized
1836
 
    :ivar name: name of colocated branch, if any (or None)
1837
 
    :ivar branch: the branch created
1838
 
 
1839
 
    Note that for lightweight checkouts, the bzrdir and format fields refer to
1840
 
    the checkout, hence they are different from the corresponding fields in
1841
 
    branch, which refer to the original branch.
1842
 
    """
1843
 
 
1844
 
    def __init__(self, format, a_bzrdir, name, branch):
1845
 
        """Create a group of BranchInitHook parameters.
1846
 
 
1847
 
        :param format: the branch format
1848
 
        :param a_bzrdir: the BzrDir where the branch will be/has been
1849
 
            initialized
1850
 
        :param name: name of colocated branch, if any (or None)
1851
 
        :param branch: the branch created
1852
 
 
1853
 
        Note that for lightweight checkouts, the bzrdir and format fields refer
1854
 
        to the checkout, hence they are different from the corresponding fields
1855
 
        in branch, which refer to the original branch.
1856
 
        """
1857
 
        self.format = format
1858
 
        self.bzrdir = a_bzrdir
1859
 
        self.name = name
1860
 
        self.branch = branch
1861
 
 
1862
 
    def __eq__(self, other):
1863
 
        return self.__dict__ == other.__dict__
1864
 
 
1865
 
    def __repr__(self):
1866
 
        if self.branch:
1867
 
            return "<%s of %s>" % (self.__class__.__name__, self.branch)
1868
 
        else:
1869
 
            return "<%s of format:%s bzrdir:%s>" % (
1870
 
                self.__class__.__name__, self.branch,
1871
 
                self.format, self.bzrdir)
1872
 
 
1873
 
 
1874
 
class SwitchHookParams(object):
1875
 
    """Object holding parameters passed to *_switch hooks.
1876
 
 
1877
 
    There are 4 fields that hooks may wish to access:
1878
 
 
1879
 
    :ivar control_dir: BzrDir of the checkout to change
1880
 
    :ivar to_branch: branch that the checkout is to reference
1881
 
    :ivar force: skip the check for local commits in a heavy checkout
1882
 
    :ivar revision_id: revision ID to switch to (or None)
1883
 
    """
1884
 
 
1885
 
    def __init__(self, control_dir, to_branch, force, revision_id):
1886
 
        """Create a group of SwitchHook parameters.
1887
 
 
1888
 
        :param control_dir: BzrDir of the checkout to change
1889
 
        :param to_branch: branch that the checkout is to reference
1890
 
        :param force: skip the check for local commits in a heavy checkout
1891
 
        :param revision_id: revision ID to switch to (or None)
1892
 
        """
1893
 
        self.control_dir = control_dir
1894
 
        self.to_branch = to_branch
1895
 
        self.force = force
1896
 
        self.revision_id = revision_id
1897
 
 
1898
 
    def __eq__(self, other):
1899
 
        return self.__dict__ == other.__dict__
1900
 
 
1901
 
    def __repr__(self):
1902
 
        return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1903
 
            self.control_dir, self.to_branch,
1904
 
            self.revision_id)
1905
 
 
1906
 
 
1907
1808
class BzrBranchFormat4(BranchFormat):
1908
1809
    """Bzr branch format 4.
1909
1810
 
1968
1869
            if format.__class__ != self.__class__:
1969
1870
                raise AssertionError("wrong format %r found for %r" %
1970
1871
                    (format, self))
1971
 
        transport = a_bzrdir.get_branch_transport(None, name=name)
1972
1872
        try:
 
1873
            transport = a_bzrdir.get_branch_transport(None, name=name)
1973
1874
            control_files = lockable_files.LockableFiles(transport, 'lock',
1974
1875
                                                         lockdir.LockDir)
1975
1876
            return self._branch_class()(_format=self,
2173
2074
            # this format does not implement branch itself, thus the implicit
2174
2075
            # creation contract must see it as uninitializable
2175
2076
            raise errors.UninitializableFormat(self)
2176
 
        mutter('creating branch reference in %s', a_bzrdir.user_url)
 
2077
        mutter('creating branch reference in %s', a_bzrdir.transport.base)
2177
2078
        branch_transport = a_bzrdir.get_branch_transport(self, name=name)
2178
2079
        branch_transport.put_bytes('location',
2179
 
            target_branch.bzrdir.user_url)
 
2080
            target_branch.bzrdir.root_transport.base)
2180
2081
        branch_transport.put_bytes('format', self.get_format_string())
2181
 
        branch = self.open(
 
2082
        return self.open(
2182
2083
            a_bzrdir, name, _found=True,
2183
2084
            possible_transports=[target_branch.bzrdir.root_transport])
2184
 
        self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2185
 
        return branch
2186
2085
 
2187
2086
    def __init__(self):
2188
2087
        super(BranchReferenceFormat, self).__init__()
2304
2203
 
2305
2204
    def __str__(self):
2306
2205
        if self.name is None:
2307
 
            return '%s(%s)' % (self.__class__.__name__, self.user_url)
 
2206
            return '%s(%r)' % (self.__class__.__name__, self.base)
2308
2207
        else:
2309
 
            return '%s(%s,%s)' % (self.__class__.__name__, self.user_url,
2310
 
                self.name)
 
2208
            return '%s(%r,%r)' % (self.__class__.__name__, self.base, self.name)
2311
2209
 
2312
2210
    __repr__ = __str__
2313
2211
 
2528
2426
        return result
2529
2427
 
2530
2428
    def get_stacked_on_url(self):
2531
 
        raise errors.UnstackableBranchFormat(self._format, self.user_url)
 
2429
        raise errors.UnstackableBranchFormat(self._format, self.base)
2532
2430
 
2533
2431
    def set_push_location(self, location):
2534
2432
        """See Branch.set_push_location."""
2724
2622
        if _mod_revision.is_null(last_revision):
2725
2623
            return
2726
2624
        if last_revision not in self._lefthand_history(revision_id):
2727
 
            raise errors.AppendRevisionsOnlyViolation(self.user_url)
 
2625
            raise errors.AppendRevisionsOnlyViolation(self.base)
2728
2626
 
2729
2627
    def _gen_revision_history(self):
2730
2628
        """Generate the revision history from last revision
2830
2728
        if branch_location is None:
2831
2729
            return Branch.reference_parent(self, file_id, path,
2832
2730
                                           possible_transports)
2833
 
        branch_location = urlutils.join(self.user_url, branch_location)
 
2731
        branch_location = urlutils.join(self.base, branch_location)
2834
2732
        return Branch.open(branch_location,
2835
2733
                           possible_transports=possible_transports)
2836
2734
 
2882
2780
        return stacked_url
2883
2781
 
2884
2782
    def _get_append_revisions_only(self):
2885
 
        return self.get_config(
2886
 
            ).get_user_option_as_bool('append_revisions_only')
 
2783
        value = self.get_config().get_user_option('append_revisions_only')
 
2784
        return value == 'True'
2887
2785
 
2888
2786
    @needs_write_lock
2889
2787
    def generate_revision_history(self, revision_id, last_rev=None,
2951
2849
    """
2952
2850
 
2953
2851
    def get_stacked_on_url(self):
2954
 
        raise errors.UnstackableBranchFormat(self._format, self.user_url)
 
2852
        raise errors.UnstackableBranchFormat(self._format, self.base)
2955
2853
 
2956
2854
 
2957
2855
######################################################################
3044
2942
        :param verbose: Requests more detailed display of what was checked,
3045
2943
            if any.
3046
2944
        """
3047
 
        note('checked branch %s format %s', self.branch.user_url,
 
2945
        note('checked branch %s format %s', self.branch.base,
3048
2946
            self.branch._format)
3049
2947
        for error in self.errors:
3050
2948
            note('found error:%s', error)
3379
3277
        if local and not bound_location:
3380
3278
            raise errors.LocalRequiresBoundBranch()
3381
3279
        master_branch = None
3382
 
        if not local and bound_location and self.source.user_url != bound_location:
 
3280
        if not local and bound_location and self.source.base != bound_location:
3383
3281
            # not pulling from master, so we need to update master.
3384
3282
            master_branch = self.target.get_master_branch(possible_transports)
3385
3283
            master_branch.lock_write()