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).

2 files changed, 9 insertions, 2 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:
diff --git a/contrib/bash-completion b/contrib/bash-completion
index 5315d83..333bf0e 100644
--- a/contrib/bash-completion
+++ b/contrib/bash-completion
@@ -49,7 +49,8 @@ _hostinfo() {
 
         COMPREPLY=( $( compgen -W "-o --oneline -f --file -k --keys -h -? --help
                                    -p --path -n --nospaces -l --hosts -s --short
-                                   -v --verbose $_completion" -- $cur ) )
+                                   -v --verbose --only-names
+                                   $_completion" -- $cur ) )
     fi
 }
 complete -F _hostinfo hostinfo