← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/uncommit.py

  • Committer: Patch Queue Manager
  • Date: 2014-09-22 19:14:34 UTC
  • mfrom: (6598.1.2 bzr)
  • Revision ID: pqm@pqm.ubuntu.com-20140922191434-6bbnpnxi5jab4vim
(richard-wilbur) Allows launchpad APIs to use proxies by default(Paul Gear).
 (Paul Gear)

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/uncommit.py
16
16
 
17
17
"""Remove the last revision from the history of the current branch."""
18
18
 
 
19
from __future__ import absolute_import
 
20
 
19
21
# TODO: make the guts of this methods on tree, branch.
20
22
 
21
23
from bzrlib import (
26
28
from bzrlib.errors import BoundBranchOutOfDate
27
29
 
28
30
 
 
31
def remove_tags(branch, graph, old_tip, parents):
 
32
    """Remove tags on revisions between old_tip and new_tip.
 
33
 
 
34
    :param branch: Branch to remove tags from
 
35
    :param graph: Graph object for branch repository
 
36
    :param old_tip: Old branch tip
 
37
    :param parents: New parents
 
38
    :return: Names of the removed tags
 
39
    """
 
40
    reverse_tags = branch.tags.get_reverse_tag_dict()
 
41
    ancestors = graph.find_unique_ancestors(old_tip, parents)
 
42
    removed_tags = []
 
43
    for revid, tags in reverse_tags.iteritems():
 
44
        if not revid in ancestors:
 
45
            continue
 
46
        for tag in tags:
 
47
            branch.tags.delete_tag(tag)
 
48
            removed_tags.append(tag)
 
49
    return removed_tags
 
50
 
 
51
 
29
52
def uncommit(branch, dry_run=False, verbose=False, revno=None, tree=None,
30
 
             local=False):
 
53
             local=False, keep_tags=False):
31
54
    """Remove the last revision from the supplied branch.
32
55
 
33
56
    :param dry_run: Don't actually change anything
36
59
    :param local: If this branch is bound, only remove the revisions from the
37
60
        local branch. If this branch is not bound, it is an error to pass
38
61
        local=True.
 
62
    :param keep_tags: Whether to keep tags pointing at the removed revisions
 
63
        around.
39
64
    """
40
65
    unlockable = []
41
66
    try:
66
91
            revno = old_revno
67
92
        new_revno = revno - 1
68
93
 
69
 
        revid_iterator = branch.repository.iter_reverse_revision_history(
70
 
                            old_tip)
71
94
        cur_revno = old_revno
72
95
        new_revision_id = old_tip
73
96
        graph = branch.repository.get_graph()
74
 
        for rev_id in revid_iterator:
 
97
        for rev_id in graph.iter_lefthand_ancestry(old_tip):
75
98
            if cur_revno == new_revno:
76
99
                new_revision_id = rev_id
77
100
                break
107
130
                    hook_new_tip = None
108
131
                hook(hook_local, hook_master, old_revno, old_tip, new_revno,
109
132
                     hook_new_tip)
 
133
            if not _mod_revision.is_null(new_revision_id):
 
134
                parents = [new_revision_id]
 
135
            else:
 
136
                parents = []
110
137
            if tree is not None:
111
 
                if not _mod_revision.is_null(new_revision_id):
112
 
                    parents = [new_revision_id]
113
 
                else:
114
 
                    parents = []
115
138
                parents.extend(reversed(pending_merges))
116
139
                tree.set_parent_ids(parents)
 
140
            if branch.supports_tags() and not keep_tags:
 
141
                remove_tags(branch, graph, old_tip, parents)
117
142
    finally:
118
143
        for item in reversed(unlockable):
119
144
            item.unlock()