84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
# (c) 2018, Ansible Project
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# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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from abc import ABCMeta, abstractmethod
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from ansible.module_utils.six import with_metaclass
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from ansible.module_utils.basic import get_all_subclasses
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from ansible.module_utils.common.process import get_bin_path
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def get_all_pkg_managers():
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return dict([(obj.__name__.lower(), obj) for obj in get_all_subclasses(PkgMgr) if obj not in (CLIMgr, LibMgr)])
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class PkgMgr(with_metaclass(ABCMeta, object)):
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@abstractmethod
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def is_available(self):
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# This method is supposed to return True/False if the package manager is currently installed/usable
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# It can also 'prep' the required systems in the process of detecting availability
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pass
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@abstractmethod
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def list_installed(self):
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# This method should return a list of installed packages, each list item will be passed to get_package_details
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pass
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@abstractmethod
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def get_package_details(self, package):
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# This takes a 'package' item and returns a dictionary with the package information, name and version are minimal requirements
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pass
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def get_packages(self):
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# Take all of the above and return a dictionary of lists of dictionaries (package = list of installed versions)
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installed_packages = {}
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for package in self.list_installed():
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package_details = self.get_package_details(package)
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if 'source' not in package_details:
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package_details['source'] = self.__class__.__name__.lower()
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name = package_details['name']
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if name not in installed_packages:
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installed_packages[name] = [package_details]
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else:
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installed_packages[name].append(package_details)
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return installed_packages
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class LibMgr(PkgMgr):
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LIB = None
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def __init__(self):
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self._lib = None
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super(LibMgr, self).__init__()
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def is_available(self):
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found = False
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try:
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self._lib = __import__(self.LIB)
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found = True
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except ImportError:
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pass
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return found
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class CLIMgr(PkgMgr):
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CLI = None
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def __init__(self):
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self._cli = None
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super(CLIMgr, self).__init__()
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def is_available(self):
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self._cli = get_bin_path(self.CLI, False)
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return bool(self._cli)
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