From a259b95556969095b8173ca18cb7e466e3573de3 Mon Sep 17 00:00:00 2001
From: Dag Wieers <dag@wieers.com>
Date: Thu, 15 Nov 2012 15:25:28 +0100
Subject: [PATCH] Fail ansible-playbook when the hosts list (with applied
 subset) is empty

When the inventory is empty, or the provided --limit subset returns an empty intersection, we don't want to loop over all plays but bail out at the very start.
---
 bin/ansible-playbook | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bin/ansible-playbook b/bin/ansible-playbook
index 13db4872dc..c0ad500d9d 100755
--- a/bin/ansible-playbook
+++ b/bin/ansible-playbook
@@ -68,6 +68,11 @@ def main(args):
         parser.print_help(file=sys.stderr)
         return 1
 
+    inventory = ansible.inventory.Inventory(options.inventory)
+    inventory.subset(options.subset)
+    if len(inventory.list_hosts()) == 0:
+        raise errors.AnsibleError("provided hosts list is empty")
+
     sshpass = None
     sudopass = None
     if not options.listhosts: