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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# This module implements plug-in support.
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# Any python module in $BZR_PLUGIN_PATH will be imported upon initialization
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# of bzrlib (and then forgotten about). In the plugin's main body, it should
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# update any bzrlib registries it wants to extend; for example, to add new
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# commands, import bzrlib.commands and add your new command to the
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# plugin_cmds variable.
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"""bzr python plugin support
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Any python module in $BZR_PLUGIN_PATH will be imported upon initialization of
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bzrlib (and then forgotten about). In the plugin's main body, it should
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update any bzrlib registries it wants to extend; for example, to add new
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commands, import bzrlib.commands and add your new command to the plugin_cmds
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# TODO: Refactor this to make it more testable. The main problem at the
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# moment is that loading plugins affects the global process state -- for bzr
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# in general use it's a reasonable assumption that all plugins are loaded at
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# startup and then stay loaded, but this is less good for testing.
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# Several specific issues:
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# - plugins can't be unloaded and will continue to effect later tests
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# - load_plugins does nothing if called a second time
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# - plugin hooks can't be removed
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# Our options are either to remove these restrictions, or work around them by
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# loading the plugins into a different space than the one running the tests.
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# That could be either a separate Python interpreter or perhaps a new
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# namespace inside this interpreter.
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def load_plugins():
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Find all python plugins and load them.
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"""Find all python plugins and load them.
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Loading a plugin means importing it into the python interpreter.
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The plugin is expected to make calls to register commands when