"""A utility for generating the structured metrics validator.
Takes as input a structured.xml file describing all events and produces a C++
header and implementation file exposing validator function calls.
"""
import argparse
import sys
import codegen
import model
parser = argparse.ArgumentParser(
description='Generate structured metrics validator')
parser.add_argument('--input', help='Path to structured.xml')
parser.add_argument('--output', help='Path to generated files.')
def main():
args = parser.parse_args()
structured = model.Model(open(args.input).read())
codegen.ValidatorHeaderTemplate(
args.output, 'structured_metrics_validator.h').write_file()
codegen.ValidatorImplTemplate(structured, args.output,
'structured_metrics_validator.cc').write_file()
return 0
if __name__ == '__main__':
sys.exit(main())
