[PATCH 3/5] service: 'service-list' returns unique services.

[Alex Kost <alezost@gmail.com>]

* modules/shepherd/service.scm (service-list): Remove duplicates from
  the final list.
---
 modules/shepherd/service.scm | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/modules/shepherd/service.scm b/modules/shepherd/service.scm
index 7cf557f..0a13626 100644
--- a/modules/shepherd/service.scm
+++ b/modules/shepherd/service.scm
@@ -827,10 +827,12 @@ Return #f if service is not found."
 
 (define (service-list)
   "Return the list of services currently defined."
-  (hash-fold (lambda (key services result)
-               (append services result))
-             '()
-             %services))
+  (delete-duplicates
+   (hash-fold (lambda (key services result)
+                (append services result))
+              '()
+              %services)
+   eq?))
 
 (define (find-service pred)
   "Return the first service that matches PRED, or #f if none was found."
-- 
2.6.3