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#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
Custom version comparison filters for use in openshift-ansible
"""
# pylint can't locate distutils.version within virtualenv
# https://github.com/PyCQA/pylint/issues/73
# pylint: disable=no-name-in-module, import-error
from distutils.version import LooseVersion
def gte_function_builder(name, gte_version):
"""
Build and return a version comparison function.
Ex: name = 'oo_version_gte_3_6'
version = '3.6'
returns oo_version_gte_3_6, a function which based on the
version will return true if the provided version is greater
than or equal to the function's version
"""
def _gte_function(version):
"""
Dynamic function created by gte_function_builder.
Ex: version = '3.1'
returns True/False
"""
version_gte = False
if str(version) >= LooseVersion(gte_version):
version_gte = True
return version_gte
_gte_function.__name__ = name
return _gte_function
# pylint: disable=too-few-public-methods
class FilterModule(object):
"""
Filters for version checking.
"""
# Each element of versions is composed of (major, minor_start, minor_end)
# Origin began versioning 3.x with 3.6, so begin 3.x with 3.6.
versions = [(3, 6, 10)]
def __init__(self):
"""
Creates a new FilterModule for ose version checking.
"""
self._filters = {}
# For each set of (major, minor, minor_iterations)
for major, minor_start, minor_end in self.versions:
# For each minor version in the range
for minor in range(minor_start, minor_end):
# Create the function name
func_name = 'oo_version_gte_{}_{}'.format(major, minor)
# Create the function with the builder
func = gte_function_builder(func_name, "{}.{}.0".format(major, minor))
# Add the function to the mapping
self._filters[func_name] = func
def filters(self):
"""
Return the filters mapping.
"""
return self._filters
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