69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from ansible import constants as C
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from ansible.parsing.splitter import parse_kv
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from ansible.utils.unicode import to_unicode
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def combine_vars(a, b):
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if C.DEFAULT_HASH_BEHAVIOUR == "merge":
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return merge_hash(a, b)
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else:
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return dict(a.items() + b.items())
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def merge_hash(a, b):
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''' recursively merges hash b into a
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keys from b take precedence over keys from a '''
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result = {}
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for dicts in a, b:
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# next, iterate over b keys and values
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for k, v in dicts.iteritems():
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# if there's already such key in a
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# and that key contains dict
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if k in result and isinstance(result[k], dict):
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# merge those dicts recursively
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result[k] = merge_hash(a[k], v)
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else:
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# otherwise, just copy a value from b to a
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result[k] = v
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return result
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def load_extra_vars(loader, options):
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extra_vars = {}
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for extra_vars_opt in options.extra_vars:
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extra_vars_opt = to_unicode(extra_vars_opt, errors='strict')
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if extra_vars_opt.startswith(u"@"):
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# Argument is a YAML file (JSON is a subset of YAML)
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data = loader.load_from_file(extra_vars_opt[1:])
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elif extra_vars_opt and extra_vars_opt[0] in u'[{':
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# Arguments as YAML
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data = loader.load(extra_vars_opt)
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else:
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# Arguments as Key-value
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data = parse_kv(extra_vars_opt)
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extra_vars = combine_vars(extra_vars, data)
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return extra_vars
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