/brz/remove-bazaar

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

« back to all changes in this revision

Viewing changes to bzrlib/uncommit.py

  • Committer: Robert Collins
  • Date: 2008-01-06 20:04:22 UTC
  • mto: (3221.11.1 StackableBranch)
  • mto: This revision was merged to the branch mainline in revision 3226.
  • Revision ID: robertc@robertcollins.net-20080106200422-x8yz6cxotlzltvwp
The bzrdir format registry now accepts an ``alias`` keyword to
register_metadir, used to indicate that a format name is an alias for
some other format and thus should not be reported when describing the
format. (Robert Collins)
-------------- This line and the fmllowing will be ignored --------------

modified:
  NEWS
  bzrlib/bzrdir.py
  bzrlib/info.py
  bzrlib/tests/test_bzrdir.py
  bzrlib/tests/test_info.py

=== modified file 'NEWS'
--- a/NEWS      2008-01-02 22:30:46 +0000
+++ b/NEWS      2008-01-06 20:04:15 +0000
@@ -135,6 +135,11 @@
     * Patience Diff now supports arbitrary python objects, as long as they
       support ``hash()``. (John Arbash Meinel)
 
+    * The bzrdir format registry now accepts an ``alias`` keyword to
+      register_metadir, used to indicate that a format name is an alias for
+      some other format and thus should not be reported when describing the
+      format. (Robert Collins)
+
   API BREAKS:
 
   TESTING:

=== modified file 'bzrlib/bzrdir.py'
--- a/bzrlib/bzrdir.py  2008-01-02 22:30:46 +0000
+++ b/bzrlib/bzrdir.py  2008-01-06 19:41:29 +0000
@@ -2447,12 +2447,22 @@
     e.g. BzrDirMeta1 with weave repository.  Also, it's more user-oriented.
     """
 
+    def __init__(self):
+        """Create a BzrDirFormatRegistry."""
+        self._aliases = set()
+        super(BzrDirFormatRegistry, self).__init__()
+
+    def aliases(self):
+        """Return a set of the format names which are aliases."""
+        return frozenset(self._aliases)
+
     def register_metadir(self, key,
              repository_format, help, native=True, deprecated=False,
              branch_format=None,
              tree_format=None,
              hidden=False,
-             experimental=False):
+             experimental=False,
+             alias=False):
         """Register a metadir subformat.
 
         These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
@@ -2491,10 +2501,10 @@
                 bd.repository_format = _load(repository_format)
             return bd
         self.register(key, helper, help, native, deprecated, hidden,
-            experimental)
+            experimental, alias)
 
     def register(self, key, factory, help, native=True, deprecated=False,
-                 hidden=False, experimental=False):
+                 hidden=False, experimental=False, alias=False):
         """Register a BzrDirFormat factory.
         
         The factory must be a callable that takes one parameter: the key.
@@ -2505,11 +2515,15 @@
         """
         registry.Registry.register(self, key, factory, help,
             BzrDirFormatInfo(native, deprecated, hidden, experimental))
+        if alias:
+            self._aliases.add(key)
 
     def register_lazy(self, key, module_name, member_name, help, native=True,
-                      deprecated=False, hidden=False, experimental=False):
+        deprecated=False, hidden=False, experimental=False, alias=False):
         registry.Registry.register_lazy(self, key, module_name, member_name,
             help, BzrDirFormatInfo(native, deprecated, hidden, experimental))
+        if alias:
+            self._aliases.add(key)
 
     def set_default(self, key):
         """Set the 'default' key to be a clone of the supplied key.
@@ -2518,6 +2532,7 @@
         """
         registry.Registry.register(self, 'default', self.get(key),
             self.get_help(key), info=self.get_info(key))
+        self._aliases.add('default')
 
     def set_default_repository(self, key):
         """Set the FormatRegistry default and Repository default.
@@ -2670,6 +2685,7 @@
     tree_format='bzrlib.workingtree.WorkingTreeFormat4',
     hidden=False,
     )
+# The following two formats should always just be aliases.
 format_registry.register_metadir('development',
     'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0',
     help='Current development format. Can convert data to and from pack-0.92 '
@@ -2681,6 +2697,7 @@
     branch_format='bzrlib.branch.BzrBranchFormat6',
     tree_format='bzrlib.workingtree.WorkingTreeFormat4',
     experimental=True,
+    alias=True,
     )
 format_registry.register_metadir('development-subtree',
     'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0Subtree',
@@ -2693,7 +2710,9 @@
     branch_format='bzrlib.branch.BzrBranchFormat6',
     tree_format='bzrlib.workingtree.WorkingTreeFormat4',
     experimental=True,
+    alias=True,
     )
+# And the development formats which the will have aliased one of follow:
 format_registry.register_metadir('development0',
     'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0',
     help='Trivial rename of pack-0.92 to provide a development format. '

=== modified file 'bzrlib/info.py'
--- a/bzrlib/info.py    2007-11-06 09:00:25 +0000
+++ b/bzrlib/info.py    2008-01-06 20:01:30 +0000
@@ -440,7 +440,9 @@
         tree.bzrdir.root_transport.base):
         branch = None
         repository = None
-    for key in bzrdir.format_registry.keys():
+    non_aliases = set(bzrdir.format_registry.keys())
+    non_aliases.difference_update(bzrdir.format_registry.aliases())
+    for key in non_aliases:
         format = bzrdir.format_registry.make_bzrdir(key)
         if isinstance(format, bzrdir.BzrDirMetaFormat1):
             if (tree and format.workingtree_format !=
@@ -457,11 +459,12 @@
         candidates.append(key)
     if len(candidates) == 0:
         return 'unnamed'
-    new_candidates = [c for c in candidates if c != 'default']
-    if len(new_candidates) > 0:
-        candidates = new_candidates
+    candidates.sort()
     new_candidates = [c for c in candidates if not
         bzrdir.format_registry.get_info(c).hidden]
     if len(new_candidates) > 0:
+        # If there are any non-hidden formats that match, only return those to
+        # avoid listing hidden formats except when only a hidden format will
+        # do.
         candidates = new_candidates
     return ' or '.join(candidates)

=== modified file 'bzrlib/tests/test_bzrdir.py'
--- a/bzrlib/tests/test_bzrdir.py       2007-12-21 20:32:22 +0000
+++ b/bzrlib/tests/test_bzrdir.py       2008-01-06 19:45:00 +0000
@@ -170,6 +170,16 @@
         finally:
             bzrdir.format_registry.set_default_repository(old_default)
 
+    def test_aliases(self):
+        a_registry = bzrdir.BzrDirFormatRegistry()
+        a_registry.register('weave', bzrdir.BzrDirFormat6,
+            'Pre-0.8 format.  Slower and does not support checkouts or shared'
+            ' repositories', deprecated=True)
+        a_registry.register('weavealias', bzrdir.BzrDirFormat6,
+            'Pre-0.8 format.  Slower and does not support checkouts or shared'
+            ' repositories', deprecated=True, alias=True)
+        self.assertEqual(frozenset(['weavealias']), a_registry.aliases())
+    
 
 class SampleBranch(bzrlib.branch.Branch):
     """A dummy branch for guess what, dummy use."""

=== modified file 'bzrlib/tests/test_info.py'
--- a/bzrlib/tests/test_info.py 2007-11-26 13:55:51 +0000
+++ b/bzrlib/tests/test_info.py 2008-01-06 20:02:10 +0000
@@ -126,16 +126,22 @@
 
     def test_describe_tree_format(self):
         for key in bzrdir.format_registry.keys():
-            if key == 'default':
+            if key in bzrdir.format_registry.aliases():
                 continue
             self.assertTreeDescription(key)
 
     def test_describe_checkout_format(self):
         for key in bzrdir.format_registry.keys():
-            if key in ('default', 'weave', 'experimental'):
-                continue
-            if key.startswith('experimental-'):
-                # these are typically hidden or aliases for other formats
+            if key in bzrdir.format_registry.aliases():
+                # Aliases will not describe correctly in the UI because the
+                # real format is found.
+                continue
+            # legacy: weave does not support checkouts
+            if key == 'weave':
+                continue
+            if bzrdir.format_registry.get_info(key).experimental:
+                # We don't require that experimental formats support checkouts
+                # or describe correctly in the UI.
                 continue
             expected = None
             if key in ('dirstate', 'dirstate-tags', 'dirstate-with-subtree',
@@ -149,7 +155,7 @@
 
     def test_describe_branch_format(self):
         for key in bzrdir.format_registry.keys():
-            if key == 'default':
+            if key in bzrdir.format_registry.aliases():
                 continue
             expected = None
             if key in ('dirstate', 'knit'):
@@ -158,7 +164,7 @@
 
     def test_describe_repo_format(self):
         for key in bzrdir.format_registry.keys():
-            if key == 'default':
+            if key in bzrdir.format_registry.aliases():
                 continue
             expected = None
             if key in ('dirstate', 'knit', 'dirstate-tags'):

Show diffs side-by-side

added added

removed removed

Lines of Context:
12
12
#
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
16
 
17
17
"""Remove the last revision from the history of the current branch."""
18
18
 
19
19
# TODO: make the guts of this methods on tree, branch.
20
20
 
21
 
from bzrlib import (
22
 
    errors,
23
 
    revision as _mod_revision,
24
 
    )
 
21
import os
 
22
 
 
23
from bzrlib import revision as _mod_revision
25
24
from bzrlib.branch import Branch
26
25
from bzrlib.errors import BoundBranchOutOfDate
27
26
 
28
27
 
29
 
def uncommit(branch, dry_run=False, verbose=False, revno=None, tree=None,
30
 
             local=False):
 
28
def uncommit(branch, dry_run=False, verbose=False, revno=None, tree=None):
31
29
    """Remove the last revision from the supplied branch.
32
30
 
33
31
    :param dry_run: Don't actually change anything
34
32
    :param verbose: Print each step as you do it
35
33
    :param revno: Remove back to this revision
36
 
    :param local: If this branch is bound, only remove the revisions from the
37
 
        local branch. If this branch is not bound, it is an error to pass
38
 
        local=True.
39
34
    """
40
35
    unlockable = []
41
36
    try:
42
37
        if tree is not None:
43
38
            tree.lock_write()
44
39
            unlockable.append(tree)
45
 
 
 
40
        
46
41
        branch.lock_write()
47
42
        unlockable.append(branch)
48
43
 
50
45
        if tree is not None:
51
46
            pending_merges = tree.get_parent_ids()[1:]
52
47
 
53
 
        if local:
54
 
            master = None
55
 
            if branch.get_bound_location() is None:
56
 
                raise errors.LocalRequiresBoundBranch()
57
 
        else:
58
 
            master = branch.get_master_branch()
59
 
            if master is not None:
60
 
                master.lock_write()
61
 
                unlockable.append(master)
62
 
        old_revno, old_tip = branch.last_revision_info()
63
 
        if master is not None and old_tip != master.last_revision():
 
48
        master = branch.get_master_branch()
 
49
        if master is not None:
 
50
            master.lock_write()
 
51
            unlockable.append(master)
 
52
        rh = branch.revision_history()
 
53
        if master is not None and rh[-1] != master.last_revision():
64
54
            raise BoundBranchOutOfDate(branch, master)
65
55
        if revno is None:
66
 
            revno = old_revno
67
 
        new_revno = revno - 1
 
56
            revno = len(rh)
 
57
        old_revno, old_tip = branch.last_revision_info()
 
58
        new_revno = revno -1
68
59
 
69
 
        revid_iterator = branch.repository.iter_reverse_revision_history(
70
 
                            old_tip)
71
 
        cur_revno = old_revno
72
 
        new_revision_id = old_tip
73
 
        graph = branch.repository.get_graph()
74
 
        for rev_id in revid_iterator:
75
 
            if cur_revno == new_revno:
76
 
                new_revision_id = rev_id
77
 
                break
78
 
            if verbose:
79
 
                print 'Removing revno %d: %s' % (cur_revno, rev_id)
80
 
            cur_revno -= 1
81
 
            parents = graph.get_parent_map([rev_id]).get(rev_id, None)
82
 
            if not parents:
83
 
                continue
 
60
        files_to_remove = []
 
61
        for r in range(revno-1, len(rh)):
 
62
            rev_id = rh.pop()
 
63
            # NB: performance would be better using the revision graph rather
 
64
            # than the whole revision.
 
65
            rev = branch.repository.get_revision(rev_id)
84
66
            # When we finish popping off the pending merges, we want
85
67
            # them to stay in the order that they used to be.
86
68
            # but we pop from the end, so reverse the order, and
87
69
            # then get the order right at the end
88
 
            pending_merges.extend(reversed(parents[1:]))
89
 
        else:
90
 
            # We ran off the end of revisions, which means we should be trying
91
 
            # to get to NULL_REVISION
92
 
            new_revision_id = _mod_revision.NULL_REVISION
 
70
            pending_merges.extend(reversed(rev.parent_ids[1:]))
 
71
            if verbose:
 
72
                print 'Removing revno %d: %s' % (len(rh)+1, rev_id)
93
73
 
 
74
        # Committing before we start removing files, because
 
75
        # once we have removed at least one, all the rest are invalid.
94
76
        if not dry_run:
95
77
            if master is not None:
96
 
                master.set_last_revision_info(new_revno, new_revision_id)
97
 
            branch.set_last_revision_info(new_revno, new_revision_id)
 
78
                master.set_revision_history(rh)
 
79
            branch.set_revision_history(rh)
 
80
            new_tip = _mod_revision.ensure_null(branch.last_revision())
98
81
            if master is None:
99
82
                hook_local = None
100
83
                hook_master = branch
102
85
                hook_local = branch
103
86
                hook_master = master
104
87
            for hook in Branch.hooks['post_uncommit']:
105
 
                hook_new_tip = new_revision_id
 
88
                hook_new_tip = new_tip
106
89
                if hook_new_tip == _mod_revision.NULL_REVISION:
107
90
                    hook_new_tip = None
108
91
                hook(hook_local, hook_master, old_revno, old_tip, new_revno,
109
92
                     hook_new_tip)
110
93
            if tree is not None:
111
 
                if not _mod_revision.is_null(new_revision_id):
112
 
                    parents = [new_revision_id]
 
94
                if not _mod_revision.is_null(new_tip):
 
95
                    parents = [new_tip]
113
96
                else:
114
97
                    parents = []
115
98
                parents.extend(reversed(pending_merges))