Add a '--list-options' option to each command.

[lttng-tools.git] / src / bin / lttng / commands / create.c

diff --git a/src/bin/lttng/commands/create.c b/src/bin/lttng/commands/create.c
index 835d82a4f9d7c7b9523a574fb0ef6cda53f8de5f..a791fbd4df43710c0ae024ee09a4a477d6de5eae 100644 (file)
--- a/src/bin/lttng/commands/create.c
+++ b/src/bin/lttng/commands/create.c
@@ -27,18 +27,21 @@
 #include <unistd.h>
 
 #include "../command.h"
+#include "../utils.h"
 
 static char *opt_output_path;
 static char *opt_session_name;
 
 enum {
        OPT_HELP = 1,
+       OPT_LIST_OPTIONS,
 };
 
 static struct poptOption long_options[] = {
        /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
-       {"help",      'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
-       {"output",    'o', POPT_ARG_STRING, &opt_output_path, 0, 0, 0},
+       {"help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL},
+       {"output", 'o', POPT_ARG_STRING, &opt_output_path, 0, NULL, NULL},
+       {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
        {0, 0, 0, 0, 0, 0, 0}
 };
 
@@ -50,6 +53,7 @@ static void usage(FILE *ofp)
        fprintf(ofp, "usage: lttng create [options] [NAME]\n");
        fprintf(ofp, "\n");
        fprintf(ofp, "  -h, --help           Show this help\n");
+       fprintf(ofp, "      --list-options       Simple listing of options\n");
        fprintf(ofp, "  -o, --output PATH    Specify output path for traces\n");
        fprintf(ofp, "\n");
 }
@@ -160,6 +164,10 @@ int cmd_create(int argc, const char **argv)
                case OPT_HELP:
                        usage(stderr);
                        goto end;
+               case OPT_LIST_OPTIONS:
+                       list_cmd_options(stdout, long_options);
+                       ret = CMD_SUCCESS;
+                       goto end;
                default:
                        usage(stderr);
                        ret = CMD_UNDEFINED;