Allow leading ranges in the inventory host entries.

lib/ansible/inventory/expand_hosts.py

@@ -41,8 +41,7 @@ def detect_range(line = None):
 
     Returnes True if the given line contains a pattern, else False.
     '''
-    if (not line.startswith("[") and
+    if (line.find("[") != -1 and
-        line.find("[") != -1 and
         line.find(":") != -1 and
         line.find("]") != -1 and
         line.index("[") < line.index(":") < line.index("]")):

lib/ansible/inventory/ini.py

@@ -65,7 +65,7 @@ class InventoryParser(object):
         active_group_name = 'ungrouped'
 
         for line in self.lines:
-            if line.startswith("["):
+            if line.startswith("[") and line.strip().endswith("]"):
                 active_group_name = line.split(" #")[0].replace("[","").replace("]","").strip()
                 if line.find(":vars") != -1 or line.find(":children") != -1:
                     active_group_name = active_group_name.rsplit(":", 1)[0]

test/TestInventory.py

@@ -294,6 +294,12 @@ class TestInventory(unittest.TestCase):
         expected_hosts=['host1A','host2A','host1B','host2B']
         assert sorted(hosts) == sorted(expected_hosts)
 
+    def test_leading_range(self):
+        i = Inventory(os.path.join(self.test_dir, 'inventory','test_leading_range'))
+        hosts = i.list_hosts('test')
+        expected_hosts=['1.host','2.host','A.host','B.host']
+        assert sorted(hosts) == sorted(expected_hosts)
+
     ###################################################
     ### Inventory API tests
 

test/inventory/test_leading_range

@@ -0,0 +1,3 @@
+[test]
+[1:2].host
+[A:B].host