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148 lines
3.5 KiB
148 lines
3.5 KiB
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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DOCUMENTATION = '''
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---
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module: json_file
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author: Daniele Baracchi
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short_description: Manipulate json files
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description:
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- Manipulate json files
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options:
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path:
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required: true
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description:
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- Path to the JSON file to be manipulated.
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key:
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required: true
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description:
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- Key to be checked.
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value:
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required: false
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description:
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- Value to set the key to.
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state:
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required: false
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default: "present"
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choices: [ "present", "absent" ]
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description:
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- Whether the key should exist or not, taking action if the state is different from what is stated.
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'''
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import json
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import os.path
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from ansible.module_utils.basic import *
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class JsonFile(object):
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def __init__(self, path):
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self.path = path
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with open(path, 'r') as stream:
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self.contents = json.load(stream)
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def has_key(self, key):
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key_path = key.split('.')
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container = self.contents
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for part in key_path:
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if part in container:
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container = container[part]
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else:
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return False
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return True
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def has_pair(self, key, value):
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key_path = key.split('.')
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container = self.contents
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for part in key_path:
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if part in container:
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container = container[part]
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else:
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return False
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return container == value
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def drop_key(self, key):
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key_path = key.split('.')
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container = self.contents
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for part in key_path[:-1]:
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container = container[part]
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del container[key_path[-1]]
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def set_key(self, key, value):
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key_path = key.split('.')
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container = self.contents
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for part in key_path[:-1]:
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if part not in container:
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container[part] = {}
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container = container[part]
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container[key_path[-1]] = value
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def serialize(self):
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with open(self.path, 'w') as stream:
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json.dump(self.contents, stream, indent=4)
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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state=dict(default='present', choices=['present', 'absent'],
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type='str'),
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path=dict(required=True, type='str'),
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key=dict(required=True, type='str'),
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value=dict(default=None, type='str')
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),
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supports_check_mode=True
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)
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path = module.params.get('path')
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key = module.params.get('key')
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state = module.params.get('state')
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result = {}
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result['path'] = path
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result['key'] = key
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result['state'] = state
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if not os.path.exists(path):
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module.fail_json("File not found: %s" % path)
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the_file = JsonFile(path)
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if state == 'absent':
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if the_file.has_key(key):
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if module.check_mode:
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module.exit_json(changed=True)
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else:
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the_file.drop_key(key)
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the_file.serialize()
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result['changed'] = True
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elif state == 'present':
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value = module.params.get('value')
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result['value'] = value
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if not the_file.has_pair(key, value):
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if module.check_mode:
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module.exit_json(changed=True)
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else:
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the_file.set_key(key, value)
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the_file.serialize()
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result['changed'] = True
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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