Parse YAML file to bash variables

README.md

Usage

eval $(python parse_yaml.py example_file.yaml)

In this example the following variables are accessible:

$key1
$key2_nested

example_file.yaml

key1: 'test'
key2:
  nested: 1

parse_yaml.py

#!/usr/bin/python

import sys
import yaml

def parse(obj, base_prefix=None):
    for key in obj:
        value = obj[key]
        prefix = '{}_{}'.format(base_prefix, key) if base_prefix else key
        if str(key).find("_") != -1 :
            print(
                "WARNING: Underscores are used in variable names, and possibly to indicate hierarchy", 
                file=sys.stderr)       
        if type(value) == dict:
            parse(value, prefix)
        elif type(value) == list:
            parse(
                dict(enumerate(value)),
                prefix)
        else:
            print('export {}="{}"'.format(prefix, value))

if __name__ == '__main__':
    with open(sys.argv[1], 'r') as f:
        parse(yaml.load(f))