core: add default descriptions for slices

[  OK  ] Created slice system-getty.slice (Slice /system/getty).
[  OK  ] Created slice system-modprobe.slice (Slice /system/modprobe).
[  OK  ] Created slice system-sshd\x2dkeygen.slice (Slice /system/sshd-keygen).
[  OK  ] Created slice user.slice (User and Session Slice).

Before, the first three slices were shown without any description which didn't
look nice.

(cherry picked from commit 4dd21726f852010aef17e9b952b4bb1646fdf496)
(cherry picked from commit 0b0d80d96009e10ce36d683b7991829a2cfca67c)

diff --git a/src/core/slice.c b/src/core/slice.c
index ee5c25932f432ce481d0a19a01fd8ad1ead154d9..bf7601ffdb947a9cce6d7f4374ad228f0c04b695 100644 (file)
--- a/src/core/slice.c
+++ b/src/core/slice.c
@@ -189,6 +189,14 @@ static int slice_load(Unit *u) {
         if (r < 0)
                 return r;
 
+        if (!u->description) {
+                _cleanup_free_ char *tmp = NULL;
+
+                r = unit_name_to_path(u->id, &tmp);
+                if (r >= 0)  /* Failure is ignored… */
+                        u->description = strjoin("Slice ", tmp);
+        }
+
         return slice_verify(s);
 }