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e28e538c6e
Hash variables are currently overriden if they are redefined. This
doesn't let the user refine hash entries or overriding selected keys,
which can, for some, be a desirable feature.
This patch let the user force hash merging by setting the
hash_behaviour value to "merge" (without the quotes) in ansible.cfg
However, by default, ansible behaves like it always did and if any value
besides "merge" is used ("replace" is suggested in the example ansible.cfg
file), it will also behave as always.
70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
# (c) 2012, 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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import os
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import glob
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from ansible import errors
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from ansible import utils
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import ansible.constants as C
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class VarsModule(object):
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def __init__(self, inventory):
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self.inventory = inventory
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def run(self, host):
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# return the inventory variables for the host
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inventory = self.inventory
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#hostrec = inventory.get_host(host)
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groupz = sorted(inventory.groups_for_host(host.name), key=lambda g: g.depth)
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groups = [ g.name for g in groupz ]
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basedir = inventory.basedir()
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if basedir is None:
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# could happen when inventory is passed in via the API
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return
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results = {}
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# load vars in playbook_dir/group_vars/name_of_group
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for x in groups:
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path = os.path.join(basedir, "group_vars/%s" % x)
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if os.path.exists(path):
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data = utils.parse_yaml_from_file(path)
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if type(data) != dict:
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raise errors.AnsibleError("%s must be stored as a dictionary/hash" % path)
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if C.DEFAULT_HASH_BEHAVIOUR == "merge":
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# let data content override results if needed
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results = utils.merge_hash(results, data)
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else:
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results.update(data)
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# load vars in playbook_dir/group_vars/name_of_host
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path = os.path.join(basedir, "host_vars/%s" % host.name)
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if os.path.exists(path):
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data = utils.parse_yaml_from_file(path)
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if type(data) != dict:
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raise errors.AnsibleError("%s must be stored as a dictionary/hash" % path)
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if C.DEFAULT_HASH_BEHAVIOUR == "merge":
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# let data content override results if needed
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results = utils.merge_hash(results, data)
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else:
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results.update(data)
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return results
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