collectd.c: Added '-t' command line option.

This option allows to test the configuration only. The program immediately
exits after parsing the config file. A return code not equal to zero indicates
an error.

Some typos have been fixed as well.

Signed-off-by: Sebastian Harl <sh@tokkee.org>

diff --git a/ChangeLog b/ChangeLog
index 25c75bf..05772cf 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,7 +4,9 @@
        * collectd: The read-function has been changed to read many plugins in
          parallel, using threads. Thus, plugins generally need to use
          thread-safe functions from now on.
-       * csv plugin: The new `csv' plugin handles output to `comma seperated
+       * collectd: The '-t' command line options allows to perform syntax tests
+         of the configuration file and exit immediately.
+       * csv plugin: The new `csv' plugin handles output to `comma separated
          values'-files.
        * rrdtool plugin: The new `rrdtool' plugin handles output to
          RRD-files. Data can be cached to combine multiple updates into one
@@ -34,8 +36,8 @@
          plugin.
        * irq plugin: The new `irq' plugin collects the IRQ-counters. Thanks
          to Peter Holik for contributing this plugin.
-       * nut plugin: The new `nut' plugin connects the the upsd of the
-         `network ups tools' and reads information about the connected UPS.
+       * nut plugin: The new `nut' plugin connects the upsd of the `network
+         ups tools' and reads information about the connected UPS.
        * apache plugin: Support for lighttpd's `BusyServers' (aka.
          connections) field was added by Florent Monbillard.
        * collectd-nagios: The new `collectd-nagios' binary queries values

diff --git a/src/collectd.c b/src/collectd.c
index 49998f9..4fbd5c0 100644 (file)
--- a/src/collectd.c
+++ b/src/collectd.c
@@ -320,6 +320,7 @@ int main (int argc, char **argv)
        struct sigaction sigIntAction;
        struct sigaction sigTermAction;
        char *configfile = CONFIGFILE;
+       int test_config  = 0;
        const char *basedir;
 #if COLLECT_DAEMON
        struct sigaction sigChldAction;
@@ -332,7 +333,7 @@ int main (int argc, char **argv)
        {
                int c;
 
-               c = getopt (argc, argv, "hC:"
+               c = getopt (argc, argv, "htC:"
 #if COLLECT_DAEMON
                                "fP:"
 #endif
@@ -346,6 +347,9 @@ int main (int argc, char **argv)
                        case 'C':
                                configfile = optarg;
                                break;
+                       case 't':
+                               test_config = 1;
+                               break;
 #if COLLECT_DAEMON
                        case 'P':
                                global_option_set ("PIDFile", optarg);
@@ -397,6 +401,9 @@ int main (int argc, char **argv)
        if (init_global_variables () != 0)
                return (1);
 
+       if (test_config)
+               return (0);
+
 #if COLLECT_DAEMON
        /*
         * fork off child

diff --git a/src/collectd.pod b/src/collectd.pod
index d7c854e..aae4315 100644 (file)
--- a/src/collectd.pod
+++ b/src/collectd.pod
@@ -10,7 +10,7 @@ collectd I<[options]>
 
 collectd is a daemon that receives system statistics and makes them available
 in a number of ways. The main daemon itself doesn't have any real functionality
-appart from loading, querying and submitting to plugins. For a description of
+apart from loading, querying and submitting to plugins. For a description of
 available plugins please see L</PLUGINS> below.
 
 =head1 OPTIONS
@@ -26,6 +26,11 @@ Specify an alternative config file. This is the place to go when you wish to
 change B<collectd>'s behavior. The path may be relative to the current working
 directory.
 
+=item B<-t>
+
+Test the configuration only. The program immediately exits after parsing the
+config file. A return code not equal to zero indicates an error.
+
 =item B<-P> I<E<lt>pid-fileE<gt>>
 
 Specify an alternative pid file. This overwrites any settings in the config