From eb33135fd15750d01b66dd7e84c03d1a23f96a54 Mon Sep 17 00:00:00 2001
From: Christian McHugh <mchugh19@hotmail.com>
Date: Mon, 8 Apr 2019 15:41:27 +0100
Subject: [PATCH] add feature to search for and return a single cron line

---
 salt/modules/cron.py | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/salt/modules/cron.py b/salt/modules/cron.py
index c833c807a174..85bd3a19b5b9 100644
--- a/salt/modules/cron.py
+++ b/salt/modules/cron.py
@@ -12,6 +12,7 @@
 # Import python libs
 import os
 import random
+import logging
 
 # Import salt libs
 import salt.utils.data
@@ -27,6 +28,8 @@
 SALT_CRON_IDENTIFIER = 'SALT_CRON_IDENTIFIER'
 SALT_CRON_NO_IDENTIFIER = 'NO ID SET'
 
+log = logging.getLogger(__name__)
+
 
 def __virtual__():
     if salt.utils.path.which('crontab'):
@@ -405,6 +408,36 @@ def list_tab(user):
 ls = salt.utils.functools.alias_function(list_tab, 'ls')
 
 
+def get_entry(user, identifier=None, cmd=None):
+    '''
+    Return the specified entry from user's crontab.
+    identifier will be used if specified, otherwise will lookup cmd
+    Either identifier or cmd should be specified.
+
+    user:
+        User's crontab to query
+
+    identifier:
+        Search for line with identifier
+
+    cmd:
+        Search for cron line with cmd
+
+    CLI Example:
+
+    .. code-block:: bash
+
+        salt '*' cron.identifier_exists root identifier=task1
+    '''
+    cron_entries = list_tab(user).get('crons', False)
+    for cron_entry in cron_entries:
+        if identifier and cron_entry.get('identifier') == identifier:
+            return cron_entry
+        elif cmd and cron_entry.get('cmd') == cmd:
+            return cron_entry
+    return False
+
+
 def set_special(user,
                 special,
                 cmd,