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36 lines
976 B
Python
Executable File
36 lines
976 B
Python
Executable File
#!/usr/bin/env python3
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"""Utility to return YAML value from key in YAML file."""
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import optparse
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import yaml
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def get_yaml_value(yaml_file, yaml_key):
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"""Return string value for 'yaml_key' from 'yaml_file'."""
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with open(yaml_file, "r") as ystream:
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yaml_dict = yaml.safe_load(ystream)
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return str(yaml_dict.get(yaml_key, ""))
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def main():
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"""Execute Main program."""
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parser = optparse.OptionParser(description=__doc__)
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parser.add_option("--yamlFile", dest="yaml_file", default=None, help="YAML file to read")
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parser.add_option(
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"--yamlKey", dest="yaml_key", default=None, help="Top level YAML key to provide the value"
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)
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(options, _) = parser.parse_args()
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if not options.yaml_file:
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parser.error("Must specifiy '--yamlFile'")
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if not options.yaml_key:
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parser.error("Must specifiy '--yamlKey'")
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print(get_yaml_value(options.yaml_file, options.yaml_key))
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if __name__ == "__main__":
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main()
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