44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
import dotbot
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from dotbot.dispatcher import Dispatcher
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from dotbot.tester import Tester
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class Conditional(dotbot.Plugin):
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'''
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Conditionally execute nested commands based on the result of configured test(s)
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'''
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_directive = "conditional"
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def can_handle(self, directive):
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return directive == self._directive
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def handle(self, directive, data):
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if directive != self._directive:
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raise ValueError("Conditional cannot handle directive %s" % directive)
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return self._process_conditional(data)
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def _process_conditional(self, data):
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success = True
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tests = data.get("if")
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test_result = Tester(self._context).evaluate(tests)
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tasks = data.get("then") if test_result else data.get("else")
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self._log.info("executing sub-commands")
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# TODO prepend/extract defaults if scope_defaults is False
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if tasks is not None:
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return self._execute_tasks(tasks)
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else:
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return True
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def _execute_tasks(self, data):
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# TODO improve handling of defaults either by reusing context/dispatcher -OR- prepend defaults & extract at end
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dispatcher = Dispatcher(self._context.base_directory(),
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only=self._context.options().only,
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skip=self._context.options().skip,
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options=self._context.options())
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# if the data is a dictionary, wrap it in a list
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data = data if type(data) is list else [ data ]
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return dispatcher.dispatch(data)
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# return self._context._dispatcher.dispatch(data)
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