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-rw-r--r--cloudinit/mergers/__init__.py13
1 files changed, 10 insertions, 3 deletions
diff --git a/cloudinit/mergers/__init__.py b/cloudinit/mergers/__init__.py
index 4a112165..453426af 100644
--- a/cloudinit/mergers/__init__.py
+++ b/cloudinit/mergers/__init__.py
@@ -20,11 +20,12 @@ import re
from cloudinit import importer
from cloudinit import log as logging
-from cloudinit import util
+from cloudinit import type_utils
NAME_MTCH = re.compile(r"(^[a-zA-Z_][A-Za-z0-9_]*)\((.*?)\)$")
LOG = logging.getLogger(__name__)
+DEF_MERGE_TYPE = "list(extend)+dict()+str(append)"
class UnknownMerger(object):
@@ -42,7 +43,7 @@ class UnknownMerger(object):
# If not found the merge will be given to a '_handle_unknown'
# function which can decide what to do wit the 2 values.
def merge(self, source, merge_with):
- type_name = util.obj_name(source)
+ type_name = type_utils.obj_name(source)
type_name = type_name.lower()
method_name = "_on_%s" % (type_name)
meth = None
@@ -127,6 +128,10 @@ def string_extract_mergers(merge_how):
return parsed_mergers
+def default_mergers():
+ return tuple(string_extract_mergers(DEF_MERGE_TYPE))
+
+
def construct(parsed_mergers):
mergers_to_be = []
for (m_name, m_ops) in parsed_mergers:
@@ -145,4 +150,6 @@ def construct(parsed_mergers):
root = LookupMerger(mergers)
for (attr, opts) in mergers_to_be:
mergers.append(attr(root, opts))
- return root \ No newline at end of file
+ return root
+
+