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Make template_ds the only templater

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Instead of having to remember when to use which one, rename template_ds
to template and move the last bit of code from template to varReplace
(which gets used for all string replacements, in the end).

This means that you can template any data type without worrying about
whether it's a string or not, and the right thing will happen.
This commit is contained in:
Daniel Hokka Zakrisson 2013-02-02 12:29:28 +01:00
parent 42daffdb38
commit a79373f6b2
5 changed files with 21 additions and 30 deletions
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4
lib/ansible/playbook/__init__.py
View file

@ -151,7 +151,7 @@ class PlayBook(object):
plugin_name = k[5:]
if plugin_name not in utils.plugins.lookup_loader:
raise errors.AnsibleError("cannot find lookup plugin named %s for usage in with_%s" % (plugin_name, plugin_name))
terms = utils.template_ds(basedir, play[k], vars)
terms = utils.template(basedir, play[k], vars)
items = utils.plugins.lookup_loader.get(plugin_name, basedir=basedir, runner=None).run(terms, inject=vars)
for item in items:
@ -165,7 +165,7 @@ class PlayBook(object):
incvars.update(v)
for t in tokens[1:]:
(k,v) = t.split("=", 1)
incvars[k] = utils.template_ds(basedir, v, incvars)
incvars[k] = utils.template(basedir, v, incvars)
included_path = utils.path_dwim(basedir, tokens[0])
(plays, basedirs) = self._load_playbook_from_file(included_path, incvars)
for p in plays:

10
lib/ansible/playbook/play.py
View file

@ -75,10 +75,8 @@ class Play(object):
self.transport = ds.get('connection', self.playbook.transport)
self.tags = ds.get('tags', None)
self.gather_facts = ds.get('gather_facts', None)
self.serial = int(utils.template_ds(basedir, ds.get('serial', 0), self.vars))
if isinstance(self.remote_port, basestring):
self.remote_port = utils.template(basedir, self.remote_port, self.vars)
self.serial = int(utils.template(basedir, ds.get('serial', 0), self.vars))
self.remote_port = utils.template(basedir, self.remote_port, self.vars)
self._update_vars_files_for_host(None)
@ -117,7 +115,7 @@ class Play(object):
plugin_name = k[5:]
if plugin_name not in utils.plugins.lookup_loader:
raise errors.AnsibleError("cannot find lookup plugin named %s for usage in with_%s" % (plugin_name, plugin_name))
terms = utils.template_ds(self.basedir, x[k], task_vars)
terms = utils.template(self.basedir, x[k], task_vars)
items = utils.plugins.lookup_loader.get(plugin_name, basedir=self.basedir, runner=None).run(terms, inject=task_vars)
elif k.startswith("when_"):
included_additional_conditions.append(utils.compile_when_to_only_if("%s %s" % (k[5:], x[k])))
@ -136,7 +134,7 @@ class Play(object):
mv['item'] = item
for t in tokens[1:]:
(k,v) = t.split("=", 1)
mv[k] = utils.template_ds(self.basedir, v, mv)
mv[k] = utils.template(self.basedir, v, mv)
include_file = utils.template(self.basedir, tokens[0], mv)
data = utils.parse_yaml_from_file(utils.path_dwim(self.basedir, include_file))
results += self._load_tasks(data, mv, included_additional_conditions)

2
lib/ansible/runner/__init__.py
View file

@ -277,7 +277,7 @@ class Runner(object):
items_plugin = self.module_vars.get('items_lookup_plugin', None)
if items_plugin is not None and items_plugin in utils.plugins.lookup_loader:
items_terms = self.module_vars.get('items_lookup_terms', '')
items_terms = utils.template_ds(self.basedir, items_terms, inject)
items_terms = utils.template(self.basedir, items_terms, inject)
items = utils.plugins.lookup_loader.get(items_plugin, runner=self, basedir=self.basedir).run(items_terms, inject=inject)
if type(items) != list:
raise errors.AnsibleError("lookup plugins have to return a list: %r" % items)

27
lib/ansible/utils/template.py
View file

@ -66,7 +66,7 @@ def _varFindLimitSpace(basedir, vars, space, part, lookup_fatal, depth):
# if space is a string, check if it's a reference to another variable
if isinstance(space, basestring):
space = template_ds(basedir, space, vars, lookup_fatal, depth)
space = template(basedir, space, vars, lookup_fatal, depth)
return space
@ -187,6 +187,9 @@ def varReplace(basedir, raw, vars, lookup_fatal=True, depth=0, expand_lists=Fals
''' Perform variable replacement of $variables in string raw using vars dictionary '''
# this code originally from yum
if not isinstance(raw, unicode):
raw = raw.decode("utf-8")
if (depth > 20):
raise errors.AnsibleError("template recursion depth exceeded")
@ -216,7 +219,7 @@ def varReplace(basedir, raw, vars, lookup_fatal=True, depth=0, expand_lists=Fals
return ''.join(done)
def template_ds(basedir, varname, vars, lookup_fatal=True, depth=0):
def template(basedir, varname, vars, lookup_fatal=True, expand_lists=True, depth=0):
''' templates a data structure by traversing it and substituting for other data structures '''
if isinstance(varname, basestring):
@ -225,31 +228,21 @@ def template_ds(basedir, varname, vars, lookup_fatal=True, depth=0):
return varname
if m['start'] == 0 and m['end'] == len(varname):
if m['replacement'] is not None:
return template_ds(basedir, m['replacement'], vars, lookup_fatal, depth)
return template(basedir, m['replacement'], vars, lookup_fatal, expand_lists, depth)
else:
return varname
else:
return template(basedir, varname, vars, lookup_fatal)
return varReplace(basedir, varname, vars, lookup_fatal, depth=depth, expand_lists=expand_lists)
elif isinstance(varname, (list, tuple)):
return [template_ds(basedir, v, vars, lookup_fatal, depth) for v in varname]
return [template(basedir, v, vars, lookup_fatal, expand_lists, depth) for v in varname]
elif isinstance(varname, dict):
d = {}
for (k, v) in varname.iteritems():
d[k] = template_ds(basedir, v, vars, lookup_fatal, depth)
d[k] = template(basedir, v, vars, lookup_fatal, expand_lists, depth)
return d
else:
return varname
def template(basedir, text, vars, lookup_fatal=True, expand_lists=False):
''' run a text buffer through the templating engine until it no longer changes '''
try:
text = text.decode('utf-8')
except UnicodeEncodeError:
pass # already unicode
text = varReplace(basedir, unicode(text), vars, lookup_fatal=lookup_fatal, expand_lists=expand_lists)
return text
class _jinja2_vars(object):
'''
Helper class to template all variable content before jinja2 sees it.
@ -288,7 +281,7 @@ class _jinja2_vars(object):
if isinstance(var, dict) and type(var) != dict:
return var
else:
return template_ds(self.basedir, var, self.vars)
return template(self.basedir, var, self.vars)
def add_locals(self, locals):
'''
If locals are provided, create a copy of self containing those

8
test/TestUtils.py
View file

@ -324,19 +324,19 @@ class TestUtils(unittest.TestCase):
}
template = '${data.var}'
res = ansible.utils.template_ds(None, template, vars)
res = ansible.utils.template(None, template, vars)
assert sorted(res) == sorted(vars['data']['var'])
template = '${data.types}'
res = ansible.utils.template_ds(None, template, vars)
res = ansible.utils.template(None, template, vars)
assert sorted(res) == sorted(vars['data']['types'])
template = '${data.alphas}'
res = ansible.utils.template_ds(None, template, vars)
res = ansible.utils.template(None, template, vars)
assert sorted(res) == sorted(vars['alphas'])
template = '${data.nonexisting}'
res = ansible.utils.template_ds(None, template, vars)
res = ansible.utils.template(None, template, vars)
assert res == template
#####################################