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Make lookup plugins accessible in templates

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This commit is contained in:
Michael DeHaan 2013-04-10 19:19:01 -04:00
parent 5b2035edd9
commit 695acc2de0
1 changed files with 17 additions and 8 deletions
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25
lib/ansible/utils/template.py
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@ -40,6 +40,13 @@ FILTER_PLUGINS = {}
_LISTRE = re.compile(r"(\w+)\[(\d+)\]")
JINJA2_OVERRIDE='#jinja2:'
def lookup(name, *args, **kwargs):
instance = utils.plugins.lookup_loader.get(name.lower(), basedir=kwargs.get('basedir',None))
if instance is not None:
return ",".join(instance.run(*args, inject=vars, **kwargs))
else:
raise errors.AnsibleError("lookup plugin (%s) not found" % name)
def _legacy_varFindLimitSpace(basedir, vars, space, part, lookup_fatal, depth, expand_lists):
''' limits the search space of space to part
@ -266,6 +273,7 @@ def template(basedir, varname, vars, lookup_fatal=True, depth=0, expand_lists=Tr
else:
return varname
class _jinja2_vars(object):
'''
Helper class to template all variable content before jinja2 sees it.
@ -347,12 +355,16 @@ def template_from_file(basedir, path, vars):
'''
jinja_exts = C.DEFAULT_JINJA2_EXTENSIONS.replace(" ", "").split(',')
def my_lookup(*args, **kwargs):
return lookup(*args, basedir=basedir, **kwargs)
environment = jinja2.Environment(loader=loader, trim_blocks=True, extensions=jinja_exts)
for filter_plugin in utils.plugins.filter_loader.all():
filters = filter_plugin.filters()
if not isinstance(filters, dict):
raise errors.AnsibleError("FilterModule.filters should return a dict.")
environment.filters.update(filters)
environment.globals['lookup'] = my_lookup
try:
data = codecs.open(realpath, encoding="utf8").read()
except UnicodeDecodeError:
@ -417,6 +429,7 @@ def _get_filter_plugins():
raise errors.AnsibleError("FilterModule.filters should return a dict.")
FILTER_PLUGINS.update(filters)
return FILTER_PLUGINS
def template_from_string(basedir, data, vars):
''' run a file through the (Jinja2) templating engine '''
@ -438,15 +451,11 @@ def template_from_string(basedir, data, vars):
raise errors.AnsibleError("recursive loop detected in template string: %s" % data)
else:
return data
def lookup(name, *args, **kwargs):
instance = utils.plugins.lookup_loader.get(name.lower(), basedir=basedir)
if instance is not None:
return ",".join(instance.run(*args, inject=vars, **kwargs))
else:
raise errors.AnsibleError("lookup plugin (%s) not found" % name)
def my_lookup(*args, **kwargs):
return lookup(*args, basedir=basedir, **kwargs)
t.globals['lookup'] = lookup
t.globals['lookup'] = my_lookup
res = jinja2.utils.concat(t.root_render_func(t.new_context(_jinja2_vars(basedir, vars, t.globals), shared=True)))
return res