Make _parse take an array of input lines as an argument

(There's no compelling reason to do this right now, but should be parser
need to be called multiple times in future, this makes it easier.)

lib/ansible/inventory/ini.py

@@ -54,8 +54,7 @@ class InventoryParser(object):
         # inventory file.
 
         with open(filename) as fh:
-            self.lines = fh.readlines()
-            self._parse()
+            self._parse(fh.readlines())
 
         # Finally, add all top-level groups (including 'ungrouped') as
         # children of 'all'.
@@ -66,10 +65,10 @@ class InventoryParser(object):
 
         # Note: we could discard self.hosts after this point.
 
-    def _parse(self):
+    def _parse(self, lines):
         '''
-        Populates self.groups from the contents of self.lines. Raises an error
-        on any parse failure.
+        Populates self.groups from the given array of lines. Raises an error on
+        any parse failure.
         '''
 
         self._compile_patterns()
@@ -84,10 +83,9 @@ class InventoryParser(object):
         state = 'hosts'
 
         i = 0
-        for line in self.lines:
+        for line in lines:
             i += 1
 
-            # Is there a better way to get rid of the ending \n?
             line = line.strip()
 
             # Skip empty lines and comments