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Signatures
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1 changed files with 4 additions and 53 deletions
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@ -20,59 +20,10 @@ from v2.utils import template
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from v2.utils import list_union
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from v2.utils import list_union
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class Conditional(object):
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class Conditional(object):
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def __init__(self, basedir, conditionals=[]):
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self.basedir = basedir
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self.conditionals = conditionals
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def push(self, conditional):
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def __init__(self, task):
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if conditional not in self.conditionals:
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pass
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self.conditionals.append(conditional)
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def get_conditionals(self):
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def evaluate(self, context):
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# return a full slice to make sure the reference
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pass
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# doesn't get mangled by other users of the result
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return self.conditionals[:]
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def merge(self, conditional):
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if isinstance(conditional, basestring):
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conditional = Conditional(self.basedir, [conditional])
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elif isinstance(conditional, list):
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conditional = Conditional(self.basedir, conditional)
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elif not isinstance(conditional, Conditional):
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raise AnsibleError('expected a Conditional() class, instead got a %s' % type(conditional))
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self.conditionals = list_union(self.conditionals, conditional.get_conditonals())
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def evaluate(self, inject):
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for conditional in self.conditional:
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if not self._do_evaluate(conditional, inject):
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return False
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return True
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def _do_evaluate(self, conditional, inject):
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# allow variable names
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if conditional in inject and '-' not in str(inject[conditional]):
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conditional = inject[conditional]
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conditional = template.template(self.basedir, conditional, inject, fail_on_undefined=C.fail_on_undefined)
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original = str(conditional).replace("jinja2_compare ","")
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# a Jinja2 evaluation that results in something Python can eval!
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presented = "{%% if %s %%} True {%% else %%} False {%% endif %%}" % conditional
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conditional = template.template(self.basedir, presented, inject)
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val = conditional.strip()
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if val == presented:
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# the templating failed, meaning most likely a
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# variable was undefined. If we happened to be
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# looking for an undefined variable, return True,
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# otherwise fail
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if "is undefined" in conditional:
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return True
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elif "is defined" in conditional:
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return False
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else:
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raise errors.AnsibleError("error while evaluating conditional: %s" % original)
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elif val == "True":
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return True
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elif val == "False":
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return False
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else:
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raise errors.AnsibleError("unable to evaluate conditional: %s" % original)
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