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bzrlib/hooks.py
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Support for plugin hooking logic."""
 
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from bzrlib import registry
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from bzrlib.lazy_import import lazy_import
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from bzrlib import registry
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from bzrlib.symbol_versioning import deprecated_method, one_five
 
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from bzrlib.symbol_versioning import deprecated_method
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lazy_import(globals(), """
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import textwrap
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known_hooks = registry.Registry()
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known_hooks.register_lazy(('bzrlib.branch', 'Branch.hooks'), 'bzrlib.branch',
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    'BranchHooks')
 
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known_hooks.register_lazy(('bzrlib.bzrdir', 'BzrDir.hooks'), 'bzrlib.bzrdir',
 
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    'BzrDirHooks')
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known_hooks.register_lazy(('bzrlib.commands', 'Command.hooks'),
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    'bzrlib.commands', 'CommandHooks')
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known_hooks.register_lazy(('bzrlib.lock', 'Lock.hooks'), 'bzrlib.lock',
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        """
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        return self._callable_names.get(a_callable, "No hook name")
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    @deprecated_method(one_five)
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    def install_hook(self, hook_name, a_callable):
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        """Install a_callable in to the hook hook_name.
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        :param hook_name: A hook name. See the __init__ method of BranchHooks
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            for the complete list of hooks.
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        :param a_callable: The callable to be invoked when the hook triggers.
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            The exact signature will depend on the hook - see the __init__
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            method of BranchHooks for details on each hook.
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        """
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        self.install_named_hook(hook_name, a_callable, None)
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    def install_named_hook(self, hook_name, a_callable, name):
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        """Install a_callable in to the hook hook_name, and label it name.
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