blkid: add search by token

salt/modules/disk.py

@@ -268,24 +268,34 @@ def percent(args=None):
 
 
 @salt.utils.decorators.path.which('blkid')
-def blkid(device=None):
+def blkid(device=None, token=None):
     '''
     Return block device attributes: UUID, LABEL, etc. This function only works
     on systems where blkid is available.
 
+    device
+        Device name from the system
+
+    token
+        Any valid token used for the search
+
     CLI Example:
 
     .. code-block:: bash
 
         salt '*' disk.blkid
         salt '*' disk.blkid /dev/sda
+        salt '*' disk.blkid token='UUID=6a38ee5-7235-44e7-8b22-816a403bad5d'
+        salt '*' disk.blkid token='TYPE=ext4'
     '''
-    args = ""
+    cmd = ['blkid']
     if device:
-        args = " " + device
+        cmd.append(device)
+    elif token:
+        cmd.extend(['-t', token])
 
     ret = {}
-    blkid_result = __salt__['cmd.run_all']('blkid' + args, python_shell=False)
+    blkid_result = __salt__['cmd.run_all'](cmd, python_shell=False)
 
     if blkid_result['retcode'] > 0:
         return ret