hostinfo: add --only-names option

With the --only-names option only the hostnames of the matching hosts
are printed. This is default with negative match (there is nothing to
print if the key does not exists).

1 files changed, 7 insertions, 1 deletions

diff --git a/bin/hostinfo b/bin/hostinfo
index c5bb9c3..98c2162 100755
--- a/bin/hostinfo
+++ b/bin/hostinfo
@@ -90,8 +90,12 @@ def print_search(basepath, flags, search):
         data = _get_data(os.path.join(basepath, host))
         key, result = match(data, search)
         if result is not None:
+            if flags.only_names:
+                print(_get_label(host))
+                continue
+
             if key is None:
-                print(host)
+                print(_get_label(host))
             else:
                 p = printer.Printer(data, flags)
                 p.info(key, label=_get_label(host), maxlength=max(length))
@@ -192,6 +196,8 @@ def main():
                         help="lists all available hosts")
     parser.add_argument("-s", "--short", action="store_true",
                         help="remove the domain from the output")
+    parser.add_argument("--only-names", action="store_true",
+                        help="only print the hostname of the matching entries")
     args = parser.parse_args()
 
     if args.path: