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
18
18
"""Support for plugin hooking logic."""
19
from bzrlib.lazy_import import lazy_import
19
20
from bzrlib import registry
20
from bzrlib.lazy_import import lazy_import
21
from bzrlib.symbol_versioning import deprecated_method, one_five
21
22
lazy_import(globals(), """
32
33
known_hooks = registry.Registry()
33
# known_hooks registry contains
34
# tuple of (module, member name) which is the hook point
35
# module where the specific hooks are defined
36
# callable to get the empty specific Hooks for that attribute
37
34
known_hooks.register_lazy(('bzrlib.branch', 'Branch.hooks'), 'bzrlib.branch',
39
known_hooks.register_lazy(('bzrlib.bzrdir', 'BzrDir.hooks'), 'bzrlib.bzrdir',
41
36
known_hooks.register_lazy(('bzrlib.commands', 'Command.hooks'),
42
37
'bzrlib.commands', 'CommandHooks')
43
known_hooks.register_lazy(('bzrlib.info', 'hooks'),
44
'bzrlib.info', 'InfoHooks')
45
38
known_hooks.register_lazy(('bzrlib.lock', 'Lock.hooks'), 'bzrlib.lock',
47
known_hooks.register_lazy(('bzrlib.merge', 'Merger.hooks'), 'bzrlib.merge',
49
known_hooks.register_lazy(('bzrlib.msgeditor', 'hooks'), 'bzrlib.msgeditor',
51
40
known_hooks.register_lazy(('bzrlib.mutabletree', 'MutableTree.hooks'),
52
41
'bzrlib.mutabletree', 'MutableTreeHooks')
53
42
known_hooks.register_lazy(('bzrlib.smart.client', '_SmartClient.hooks'),
54
43
'bzrlib.smart.client', 'SmartClientHooks')
55
44
known_hooks.register_lazy(('bzrlib.smart.server', 'SmartTCPServer.hooks'),
56
45
'bzrlib.smart.server', 'SmartServerHooks')
57
known_hooks.register_lazy(
58
('bzrlib.version_info_formats.format_rio', 'RioVersionInfoBuilder.hooks'),
59
'bzrlib.version_info_formats.format_rio', 'RioVersionInfoBuilderHooks')
60
known_hooks.register_lazy(
61
('bzrlib.merge_directive', 'BaseMergeDirective.hooks'),
62
'bzrlib.merge_directive', 'MergeDirectiveHooks')
65
48
def known_hooks_key_to_object((module_name, member_name)):
148
131
return self._callable_names.get(a_callable, "No hook name")
133
@deprecated_method(one_five)
134
def install_hook(self, hook_name, a_callable):
135
"""Install a_callable in to the hook hook_name.
137
:param hook_name: A hook name. See the __init__ method of BranchHooks
138
for the complete list of hooks.
139
:param a_callable: The callable to be invoked when the hook triggers.
140
The exact signature will depend on the hook - see the __init__
141
method of BranchHooks for details on each hook.
143
self.install_named_hook(hook_name, a_callable, None)
150
145
def install_named_hook(self, hook_name, a_callable, name):
151
146
"""Install a_callable in to the hook hook_name, and label it name.
182
177
:ivar introduced: A version tuple specifying what version the hook was
183
178
introduced in. None indicates an unknown version.
184
179
:ivar deprecated: A version tuple specifying what version the hook was
185
deprecated or superseded in. None indicates that the hook is not
186
superseded or deprecated. If the hook is superseded then the doc
180
deprecated or superceded in. None indicates that the hook is not
181
superceded or deprecated. If the hook is superceded then the doc
187
182
should describe the recommended replacement hook to register for.
188
183
:ivar doc: The docs for using the hook.
220
215
strings.append('Introduced in: %s' % introduced_string)
221
216
if self.deprecated:
222
217
deprecated_string = _format_version_tuple(self.deprecated)
223
strings.append('Deprecated in: %s' % deprecated_string)
219
deprecated_string = 'Not deprecated'
220
strings.append('Deprecated in: %s' % deprecated_string)
224
221
strings.append('')
225
strings.extend(textwrap.wrap(self.__doc__,
226
break_long_words=False))
222
strings.extend(textwrap.wrap(self.__doc__))
227
223
strings.append('')
228
224
return '\n'.join(strings)
279
275
See `Using hooks`_ in the User Guide for examples.
281
.. _Using hooks: ../user-guide/hooks.html
277
.. _Using hooks: ../user-guide/index.html#using-hooks
283
279
The class that contains each hook is given before the hooks it supplies. For
284
280
instance, BranchHooks as the class is the hooks class for