/brz/remove-bazaar

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  • Committer: Robert Collins
  • Date: 2010-05-06 11:08:10 UTC
  • mto: This revision was merged to the branch mainline in revision 5223.
  • Revision ID: robertc@robertcollins.net-20100506110810-h3j07fh5gmw54s25
Cleaner matcher matching revised unlocking protocol.

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Lines of Context:
bzrlib/branch.py
63
63
BZR_BRANCH_FORMAT_6 = "Bazaar Branch Format 6 (bzr 0.15)\n"
64
64
 
65
65
 
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):
 
66
class Branch(bzrdir.ControlComponent):
79
67
    """Branch holding a history of revisions.
80
68
 
81
 
    base
82
 
        Base directory/url of the branch.
 
69
    :ivar base:
 
70
        Base directory/url of the branch; using control_url and
 
71
        control_transport is more standardized.
83
72
 
84
73
    hooks: An instance of BranchHooks.
85
74
    """
87
76
    # - RBC 20060112
88
77
    base = None
89
78
 
 
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
 
90
87
    def __init__(self, *ignored, **ignored_too):
91
88
        self.tags = self._format.make_tags(self)
92
89
        self._revision_history_cache = None
107
104
        """Activate the branch/repository from url as a fallback repository."""
108
105
        repo = self._get_fallback_repository(url)
109
106
        if repo.has_same_location(self.repository):
110
 
            raise errors.UnstackableLocationError(self.base, url)
 
107
            raise errors.UnstackableLocationError(self.user_url, url)
111
108
        self.repository.add_fallback_repository(repo)
112
109
 
113
110
    def break_lock(self):
420
417
            * 'include' - the stop revision is the last item in the result
421
418
            * 'with-merges' - include the stop revision and all of its
422
419
              merged revisions in the result
 
420
            * 'with-merges-without-common-ancestry' - filter out revisions 
 
421
              that are in both ancestries
423
422
        :param direction: either 'reverse' or 'forward':
424
423
            * reverse means return the start_revision_id first, i.e.
425
424
              start at the most recent revision and go backwards in history
456
455
            stop_revision_id, stop_rule)
457
456
        # Make sure we don't return revisions that are not part of the
458
457
        # start_revision_id ancestry.
459
 
        filtered = self._filter_non_ancestors(filtered)
 
458
        filtered = self._filter_start_non_ancestors(filtered)
460
459
        if direction == 'reverse':
461
460
            return filtered
462
461
        if direction == 'forward':
499
498
                       node.end_of_merge)
500
499
                if rev_id == stop_revision_id:
501
500
                    return
 
501
        elif stop_rule == 'with-merges-without-common-ancestry':
 
502
            # We want to exclude all revisions that are already part of the
 
503
            # stop_revision_id ancestry.
 
504
            graph = self.repository.get_graph()
 
505
            ancestors = graph.find_unique_ancestors(start_revision_id,
 
506
                                                    [stop_revision_id])
 
507
            for node in rev_iter:
 
508
                rev_id = node.key[-1]
 
509
                if rev_id not in ancestors:
 
510
                    continue
 
511
                yield (rev_id, node.merge_depth, node.revno,
 
512
                       node.end_of_merge)
502
513
        elif stop_rule == 'with-merges':
503
514
            stop_rev = self.repository.get_revision(stop_revision_id)
504
515
            if stop_rev.parent_ids:
527
538
        else:
528
539
            raise ValueError('invalid stop_rule %r' % stop_rule)
529
540
 
530
 
    def _filter_non_ancestors(self, rev_iter):
 
541
    def _filter_start_non_ancestors(self, rev_iter):
531
542
        # If we started from a dotted revno, we want to consider it as a tip
532
543
        # and don't want to yield revisions that are not part of its
533
544
        # ancestry. Given the order guaranteed by the merge sort, we will see
594
605
        :param other: The branch to bind to
595
606
        :type other: Branch
596
607
        """
597
 
        raise errors.UpgradeRequired(self.base)
 
608
        raise errors.UpgradeRequired(self.user_url)
598
609
 
599
610
    def set_append_revisions_only(self, enabled):
600
611
        if not self._format.supports_set_append_revisions_only():
601
 
            raise errors.UpgradeRequired(self.base)
 
612
            raise errors.UpgradeRequired(self.user_url)
602
613
        if enabled:
603
614
            value = 'True'
604
615
        else:
652
663
    def get_old_bound_location(self):
653
664
        """Return the URL of the branch we used to be bound to
654
665
        """
655
 
        raise errors.UpgradeRequired(self.base)
 
666
        raise errors.UpgradeRequired(self.user_url)
656
667
 
657
668
    def get_commit_builder(self, parents, config=None, timestamp=None,
658
669
                           timezone=None, committer=None, revprops=None,
736
747
            stacking.
737
748
        """
738
749
        if not self._format.supports_stacking():
739
 
            raise errors.UnstackableBranchFormat(self._format, self.base)
 
750
            raise errors.UnstackableBranchFormat(self._format, self.user_url)
740
751
        # XXX: Changing from one fallback repository to another does not check
741
752
        # that all the data you need is present in the new fallback.
742
753
        # Possibly it should.
893
904
 
894
905
    def unbind(self):
895
906
        """Older format branches cannot bind or unbind."""
896
 
        raise errors.UpgradeRequired(self.base)
 
907
        raise errors.UpgradeRequired(self.user_url)
897
908
 
898
909
    def last_revision(self):
899
910
        """Return last revision id, or NULL_REVISION."""
1059
1070
        try:
1060
1071
            return urlutils.join(self.base[:-1], parent)
1061
1072
        except errors.InvalidURLJoin, e:
1062
 
            raise errors.InaccessibleParent(parent, self.base)
 
1073
            raise errors.InaccessibleParent(parent, self.user_url)
1063
1074
 
1064
1075
    def _get_parent_location(self):
1065
1076
        raise NotImplementedError(self._get_parent_location)
1543
1554
        """Return the short format description for this format."""
1544
1555
        raise NotImplementedError(self.get_format_description)
1545
1556
 
 
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
 
1546
1565
    def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1547
1566
                           lock_type='metadir', set_format=True):
1548
1567
        """Initialize a branch in a bzrdir, with specified files
1556
1575
            elsewhere)
1557
1576
        :return: a branch in this format
1558
1577
        """
1559
 
        mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
 
1578
        mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1560
1579
        branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1561
1580
        lock_map = {
1562
1581
            'metadir': ('lock', lockdir.LockDir),
1584
1603
        finally:
1585
1604
            if lock_taken:
1586
1605
                control_files.unlock()
1587
 
        return self.open(a_bzrdir, name, _found=True)
 
1606
        branch = self.open(a_bzrdir, name, _found=True)
 
1607
        self._run_post_branch_init_hooks(a_bzrdir, name, branch)
 
1608
        return branch
1588
1609
 
1589
1610
    def initialize(self, a_bzrdir, name=None):
1590
1611
        """Create a branch of this format in a_bzrdir.
1750
1771
            "should return a tag name or None if no tag name could be "
1751
1772
            "determined. The first non-None tag name returned will be used.",
1752
1773
            (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))
1753
1784
 
1754
1785
 
1755
1786
 
1795
1826
            self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1796
1827
 
1797
1828
 
 
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
 
1798
1907
class BzrBranchFormat4(BranchFormat):
1799
1908
    """Bzr branch format 4.
1800
1909
 
1859
1968
            if format.__class__ != self.__class__:
1860
1969
                raise AssertionError("wrong format %r found for %r" %
1861
1970
                    (format, self))
 
1971
        transport = a_bzrdir.get_branch_transport(None, name=name)
1862
1972
        try:
1863
 
            transport = a_bzrdir.get_branch_transport(None, name=name)
1864
1973
            control_files = lockable_files.LockableFiles(transport, 'lock',
1865
1974
                                                         lockdir.LockDir)
1866
1975
            return self._branch_class()(_format=self,
2064
2173
            # this format does not implement branch itself, thus the implicit
2065
2174
            # creation contract must see it as uninitializable
2066
2175
            raise errors.UninitializableFormat(self)
2067
 
        mutter('creating branch reference in %s', a_bzrdir.transport.base)
 
2176
        mutter('creating branch reference in %s', a_bzrdir.user_url)
2068
2177
        branch_transport = a_bzrdir.get_branch_transport(self, name=name)
2069
2178
        branch_transport.put_bytes('location',
2070
 
            target_branch.bzrdir.root_transport.base)
 
2179
            target_branch.bzrdir.user_url)
2071
2180
        branch_transport.put_bytes('format', self.get_format_string())
2072
 
        return self.open(
 
2181
        branch = self.open(
2073
2182
            a_bzrdir, name, _found=True,
2074
2183
            possible_transports=[target_branch.bzrdir.root_transport])
 
2184
        self._run_post_branch_init_hooks(a_bzrdir, name, branch)
 
2185
        return branch
2075
2186
 
2076
2187
    def __init__(self):
2077
2188
        super(BranchReferenceFormat, self).__init__()
2193
2304
 
2194
2305
    def __str__(self):
2195
2306
        if self.name is None:
2196
 
            return '%s(%r)' % (self.__class__.__name__, self.base)
 
2307
            return '%s(%s)' % (self.__class__.__name__, self.user_url)
2197
2308
        else:
2198
 
            return '%s(%r,%r)' % (self.__class__.__name__, self.base, self.name)
 
2309
            return '%s(%s,%s)' % (self.__class__.__name__, self.user_url,
 
2310
                self.name)
2199
2311
 
2200
2312
    __repr__ = __str__
2201
2313
 
2416
2528
        return result
2417
2529
 
2418
2530
    def get_stacked_on_url(self):
2419
 
        raise errors.UnstackableBranchFormat(self._format, self.base)
 
2531
        raise errors.UnstackableBranchFormat(self._format, self.user_url)
2420
2532
 
2421
2533
    def set_push_location(self, location):
2422
2534
        """See Branch.set_push_location."""
2612
2724
        if _mod_revision.is_null(last_revision):
2613
2725
            return
2614
2726
        if last_revision not in self._lefthand_history(revision_id):
2615
 
            raise errors.AppendRevisionsOnlyViolation(self.base)
 
2727
            raise errors.AppendRevisionsOnlyViolation(self.user_url)
2616
2728
 
2617
2729
    def _gen_revision_history(self):
2618
2730
        """Generate the revision history from last revision
2718
2830
        if branch_location is None:
2719
2831
            return Branch.reference_parent(self, file_id, path,
2720
2832
                                           possible_transports)
2721
 
        branch_location = urlutils.join(self.base, branch_location)
 
2833
        branch_location = urlutils.join(self.user_url, branch_location)
2722
2834
        return Branch.open(branch_location,
2723
2835
                           possible_transports=possible_transports)
2724
2836
 
2770
2882
        return stacked_url
2771
2883
 
2772
2884
    def _get_append_revisions_only(self):
2773
 
        value = self.get_config().get_user_option('append_revisions_only')
2774
 
        return value == 'True'
 
2885
        return self.get_config(
 
2886
            ).get_user_option_as_bool('append_revisions_only')
2775
2887
 
2776
2888
    @needs_write_lock
2777
2889
    def generate_revision_history(self, revision_id, last_rev=None,
2839
2951
    """
2840
2952
 
2841
2953
    def get_stacked_on_url(self):
2842
 
        raise errors.UnstackableBranchFormat(self._format, self.base)
 
2954
        raise errors.UnstackableBranchFormat(self._format, self.user_url)
2843
2955
 
2844
2956
 
2845
2957
######################################################################
2932
3044
        :param verbose: Requests more detailed display of what was checked,
2933
3045
            if any.
2934
3046
        """
2935
 
        note('checked branch %s format %s', self.branch.base,
 
3047
        note('checked branch %s format %s', self.branch.user_url,
2936
3048
            self.branch._format)
2937
3049
        for error in self.errors:
2938
3050
            note('found error:%s', error)
3267
3379
        if local and not bound_location:
3268
3380
            raise errors.LocalRequiresBoundBranch()
3269
3381
        master_branch = None
3270
 
        if not local and bound_location and self.source.base != bound_location:
 
3382
        if not local and bound_location and self.source.user_url != bound_location:
3271
3383
            # not pulling from master, so we need to update master.
3272
3384
            master_branch = self.target.get_master_branch(possible_transports)
3273
3385
            master_branch.lock_write()