Template globals in Wok

__hooks__.py

from template_globals import template_globals

hooks = {
    "page.template.pre" : [template_globals]
}

template_globals.py

import yaml
import collections

with open("globals.yaml") as f:
    extra_template_variables = yaml.load(f.read())

def template_globals(page, template_variables):
    recursive_dict_update(template_variables, extra_template_variables)

def recursive_dict_update(dictionary, other):
    for key, value in other.iteritems():
        if isinstance(value, collections.Mapping):
            r = recursive_dict_update(dictionary.get(key, {}), value)
            dictionary[key] = r
        else:
            dictionary[key] = other[key]
        return dictionary