mirror of
https://github.com/avatao-content/baseimage-tutorial-framework
synced 2024-09-16 23:44:10 +00:00
42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
from subprocess import Popen
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from functools import partial
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import yaml
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from transitions import State
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from tfw import FSMBase
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class YamlFSM(FSMBase):
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def __init__(self, config_file):
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self.config = self.parse_config(config_file)
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self.patch_config_callbacks()
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self.setup_states()
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super().__init__() # FSMBase.__init__() requires states
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self.setup_transitions()
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@staticmethod
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def parse_config(config_file):
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with open(config_file, 'r') as ifile:
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return yaml.safe_load(ifile)
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def setup_states(self):
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self.states = [State(**state) for state in self.config['states']]
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def setup_transitions(self):
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for transition in self.config['transitions']:
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self.add_transition(**transition)
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def patch_config_callbacks(self):
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topatch = ('on_enter', 'on_exit', 'prepare', 'before', 'after')
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for array in ('states', 'transitions'):
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for json_obj in self.config[array]:
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for key in json_obj:
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if key in topatch:
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json_obj[key] = partial(self.run, json_obj[key])
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@staticmethod
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def run(command, event):
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Popen(command, shell=True)
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