Dump the dss configuration on startup and on SIGHUP.

This makes it possible to look at the current dss configuration
(which may differ from what is contained in the config file).

This feature is handy for the users of dss and it helps to debug the
dss code.

diff --git a/dss.c b/dss.c
index a233c11f7060c0321502c35e555df78ef0b3931b..c5f636c2ed8b86ad5170c164d3f6e2d4d08d862c 100644 (file)
--- a/dss.c
+++ b/dss.c
@@ -888,7 +888,6 @@ static int parse_config_file(int override)
                log_welcome(conf.loglevel_arg);
        }
        DSS_DEBUG_LOG("loglevel: %d\n", conf.loglevel_arg);
-//     cmdline_parser_dump(logfile? logfile : stdout, &conf);
        ret = config_file_exists;
 out:
        free(config_file);
@@ -903,14 +902,24 @@ static int change_to_dest_dir(void)
        return dss_chdir(conf.dest_dir_arg);
 }
 
+static void dump_dss_config(const char *msg)
+{
+       if (conf.loglevel_arg > INFO)
+               return;
+       DSS_INFO_LOG("%s\n", msg);
+       cmdline_parser_dump(logfile? logfile : stderr, &conf);
+}
+
 static int handle_sighup(void)
 {
        int ret;
 
-       DSS_NOTICE_LOG("SIGHUP\n");
+       DSS_NOTICE_LOG("SIGHUP, re-reading config\n");
+       dump_dss_config("current config");
        ret = parse_config_file(1);
        if (ret < 0)
                return ret;
+       dump_dss_config("new config");
        invalidate_next_snapshot_time();
        return change_to_dest_dir();
 }
@@ -1315,6 +1324,7 @@ int main(int argc, char **argv)
        }
        if (conf.daemon_given)
                daemon_init();
+       dump_dss_config("dss configuration");
        ret = change_to_dest_dir();
        if (ret < 0)
                goto out;