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Allow var lookup plugin to operate on a list of terms

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Not sure this has a good use case but it's how nearly all other lookups
work so we should support the common interface.
This commit is contained in:
Toshio Kuratomi 2018-02-07 16:11:28 -08:00
commit db29190c28
1 changed files with 18 additions and 25 deletions
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43
lib/ansible/plugins/lookup/var.py
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@ -63,8 +63,6 @@ from ansible.plugins.lookup import LookupBase
class LookupModule(LookupBase): class LookupModule(LookupBase):
def run(self, terms, variables=None, **kwargs): def run(self, terms, variables=None, **kwargs):
ret = []
if variables is not None: if variables is not None:
self._templar.set_available_variables(variables) self._templar.set_available_variables(variables)
myvars = getattr(self._templar, '_available_variables', {}) myvars = getattr(self._templar, '_available_variables', {})
@ -72,30 +70,25 @@ class LookupModule(LookupBase):
self.set_options(direct=kwargs) self.set_options(direct=kwargs)
default = self.get_option('default') default = self.get_option('default')
# Assumes listify_plugin_terms is called previous to run so each term is already templated and terms is always a list ret = []
if isinstance(terms, list): for term in terms:
term = terms[0] if not isinstance(term, string_types):
elif isinstance(terms, string_types): raise AnsibleError('Invalid setting identifier, "%s" is not a string, its a %s' % (term, type(term)))
term = terms
else:
raise AnsibleError('Invalid terms passed to "var" lookup, "%s" is not a string, its a %s' % (terms, type(terms)))
if not isinstance(term, string_types): try:
raise AnsibleError('Invalid setting identifier, "%s" is not a string, its a %s' % (term, type(term))) if term in myvars:
value = myvars[term]
elif 'hostvars' in myvars and term in myvars['hostvars']:
# maybe it is a host var?
value = myvars['hostvars'][term]
else:
raise AnsibleUndefinedVariable('No variable found with this name: %s' % term)
ret.append(self._templar.template(value, fail_on_undefined=True))
try: except AnsibleUndefinedVariable:
if term in myvars: if default is not None:
value = myvars[term] ret.append(default)
elif 'hostvars' in myvars and term in myvars['hostvars']: else:
# maybe it is a host var? raise
value = myvars['hostvars'][term]
else:
raise AnsibleUndefinedVariable('No variable found with this name: %s' % term)
ret = [self._templar.template(value, fail_on_undefined=True)]
except AnsibleUndefinedVariable:
if default is not None:
ret = [default]
else:
raise
return ret return ret