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To get a list of installed hooks, use the hidden ``hooks`` command::
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To get a list of installed hooks (and available hook points), use the hidden
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Example: a merge plugin
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-----------------------
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Here's a complete plugin that demonstrates the ``Merger.merge_file_content``
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hook. It installs a hook that forces any merge of a file named ``*.xml``
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to be a conflict, even if Bazaar thinks it can merge it cleanly.
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"""Custom 'merge' logic for *.xml files.
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Always conflicts if both branches have changed the file.
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from bzrlib.merge import PerFileMerger, Merger
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def merge_xml_files_hook(merger):
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"""Hook to merge *.xml files"""
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return MergeXMLFiles(merger)
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class AlwaysConflictXMLMerger(PerFileMerger):
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def file_matches(self, params):
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filename = self.get_filename(params, self.merger.this_tree)
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return filename.endswith('.xml')
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def merge_matching(self, params):
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return 'conflicted', params.this_lines
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Merger.hooks.install_named_hook(
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'merge_file_content', merge_xml_files_hook, '*.xml file merge')
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``merge_file_content`` hooks are executed for each file to be merged. For
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a more a complex example look at the ``news_merge`` plugin that's bundled with
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Bazaar in the ``bzrlib/plugins`` directory.
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doc/en/user-guide/hooks.txt
