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Viewing changes to bzrlib/tests/test_revert.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'):

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Lines of Context:
 
1
# Copyright (C) 2006 Canonical Ltd
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
16
 
 
17
import os
 
18
 
 
19
from bzrlib import merge, tests, transform, workingtree
 
20
 
 
21
 
 
22
class TestRevert(tests.TestCaseWithTransport):
 
23
    """Ensure that revert behaves as expected"""
 
24
 
 
25
    def test_revert_merged_dir(self):
 
26
        """Reverting a merge that adds a directory deletes the directory"""
 
27
        source_tree = self.make_branch_and_tree('source')
 
28
        source_tree.commit('empty tree')
 
29
        target_tree = source_tree.bzrdir.sprout('target').open_workingtree()
 
30
        self.build_tree(['source/dir/', 'source/dir/contents'])
 
31
        source_tree.add(['dir', 'dir/contents'], ['dir-id', 'contents-id'])
 
32
        source_tree.commit('added dir')
 
33
        merge.merge_inner(target_tree.branch, source_tree.basis_tree(), 
 
34
                          target_tree.basis_tree(), this_tree=target_tree)
 
35
        self.failUnlessExists('target/dir')
 
36
        self.failUnlessExists('target/dir/contents')
 
37
        target_tree.revert()
 
38
        self.failIfExists('target/dir/contents')
 
39
        self.failIfExists('target/dir')
 
40
 
 
41
    def test_revert_new(self):
 
42
        """Only locally-changed new files should be preserved when reverting
 
43
 
 
44
        When a file isn't present in revert's target tree:
 
45
        If a file hasn't been committed, revert should unversion it, but not
 
46
        delete it.
 
47
        If a file has local changes, revert should unversion it, but not
 
48
        delete it.
 
49
        If a file has no changes from the last commit, revert should delete it.
 
50
        If a file has changes due to a merge, revert should delete it.
 
51
        """
 
52
        tree = self.make_branch_and_tree('tree')
 
53
        tree.commit('empty tree')
 
54
        merge_target = tree.bzrdir.sprout('merge_target').open_workingtree()
 
55
        self.build_tree(['tree/new_file'])
 
56
 
 
57
        # newly-added files should not be deleted
 
58
        tree.add('new_file')
 
59
        basis_tree = tree.branch.repository.revision_tree(tree.last_revision())
 
60
        tree.revert()
 
61
        self.failUnlessExists('tree/new_file')
 
62
 
 
63
        # unchanged files should be deleted
 
64
        tree.add('new_file')
 
65
        tree.commit('add new_file')
 
66
        tree.revert(old_tree=basis_tree)
 
67
        self.failIfExists('tree/new_file')
 
68
        
 
69
        # files should be deleted if their changes came from merges
 
70
        merge_target.merge_from_branch(tree.branch)
 
71
        self.failUnlessExists('merge_target/new_file')
 
72
        merge_target.revert()
 
73
        self.failIfExists('merge_target/new_file')
 
74
 
 
75
        # files should not be deleted if changed after a merge
 
76
        merge_target.merge_from_branch(tree.branch)
 
77
        self.failUnlessExists('merge_target/new_file')
 
78
        self.build_tree_contents([('merge_target/new_file', 'new_contents')])
 
79
        merge_target.revert()
 
80
        self.failUnlessExists('merge_target/new_file')
 
81
 
 
82
    def tree_with_executable(self):
 
83
        tree = self.make_branch_and_tree('tree')
 
84
        tt = transform.TreeTransform(tree)
 
85
        tt.new_file('newfile', tt.root, 'helooo!', 'newfile-id', True)
 
86
        tt.apply()
 
87
        self.assertTrue(tree.is_executable('newfile-id'))
 
88
        tree.commit('added newfile')
 
89
        return tree
 
90
 
 
91
    def test_preserve_execute(self):
 
92
        tree = self.tree_with_executable()
 
93
        tt = transform.TreeTransform(tree)
 
94
        newfile = tt.trans_id_tree_file_id('newfile-id')
 
95
        tt.delete_contents(newfile)
 
96
        tt.create_file('Woooorld!', newfile)
 
97
        tt.apply()
 
98
        tree = workingtree.WorkingTree.open('tree')
 
99
        self.assertTrue(tree.is_executable('newfile-id'))
 
100
        transform.revert(tree, tree.basis_tree(), None, backups=True)
 
101
        self.assertEqual('helooo!', tree.get_file('newfile-id').read())
 
102
        self.assertTrue(tree.is_executable('newfile-id'))
 
103
 
 
104
    def test_revert_executable(self):
 
105
        tree = self.tree_with_executable()
 
106
        tt = transform.TreeTransform(tree)
 
107
        newfile = tt.trans_id_tree_file_id('newfile-id')
 
108
        tt.set_executability(False, newfile)
 
109
        tt.apply()
 
110
        transform.revert(tree, tree.basis_tree(), None)
 
111
        self.assertTrue(tree.is_executable('newfile-id'))
 
112
 
 
113
    def test_revert_deletes_files_from_revert(self):
 
114
        tree = self.make_branch_and_tree('.')
 
115
        self.build_tree(['file'])
 
116
        tree.add('file')
 
117
        tree.commit('added file', rev_id='rev1')
 
118
        os.unlink('file')
 
119
        tree.commit('removed file')
 
120
        self.failIfExists('file')
 
121
        tree.revert(old_tree=tree.branch.repository.revision_tree('rev1'))
 
122
        self.failUnlessExists('file')
 
123
        tree.revert()
 
124
        self.failIfExists('file')
 
125
        self.assertEqual({}, tree.merge_modified())
 
126
 
 
127
    def test_empty_deprecated(self):
 
128
        tree = self.make_branch_and_tree('.')
 
129
        self.build_tree(['file'])
 
130
        tree.add('file')
 
131
        self.callDeprecated(['Using [] to revert all files is deprecated'
 
132
            ' as of bzr 0.91.  Please use None (the default) instead.'],
 
133
            tree.revert, [])
 
134
        self.assertIs(None, tree.path2id('file'))
 
135
 
 
136
    def test_revert_file_in_deleted_dir(self):
 
137
        tree = self.make_branch_and_tree('.')
 
138
        self.build_tree(['dir/', 'dir/file1', 'dir/file2'])
 
139
        tree.add(['dir', 'dir/file1', 'dir/file2'],
 
140
                 ['dir-id', 'file1-id', 'file2-id'])
 
141
        tree.commit("Added files")
 
142
        os.unlink('dir/file1')
 
143
        os.unlink('dir/file2')
 
144
        os.rmdir('dir')
 
145
        tree.remove(['dir/', 'dir/file1', 'dir/file2'])
 
146
        tree.revert(['dir/file1'])
 
147
        self.failUnlessExists('dir/file1')
 
148
        self.failIfExists('dir/file2')
 
149
        self.assertEqual('dir-id', tree.path2id('dir'))