initial log command support

bin/serv

@@ -201,6 +201,9 @@ check_command()
         serv_cmd=print
         withoutservicename=1
         ;;
+    log|journal)              # HELPCMD: print log for the service
+        serv_cmd=log
+        ;;
     *)
         return 1
         ;;

bin/serv-log

+#!/bin/sh
+#
+# Copyright (C) 2016  Etersoft
+# Copyright (C) 2016  Vitaly Lipatov <lav@etersoft.ru>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+serv_log()
+{
+	local SERVICE="$1"
+	shift
+
+	case $SERVICETYPE in
+		systemd)
+			sudocmd journalctl -f -b -u "$SERVICE" "$@"
+			;;
+		*)
+			fatal "Have no suitable command for $SERVICETYPE"
+			;;
+	esac
+}