Add dummy output module

[babeltrace.git] / converter / babeltrace.c

diff --git a/converter/babeltrace.c b/converter/babeltrace.c
index c888ec60dc05f71cbf4142ad1c270e0980043021..dd335edbb20d56374559d450cdcbbfdf8b29861b 100644 (file)
--- a/converter/babeltrace.c
+++ b/converter/babeltrace.c
@@ -3,7 +3,9 @@
  *
  * Babeltrace Trace Converter
  *
- * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
+ *
+ * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -33,6 +35,7 @@ static const char *opt_input_path;
 static const char *opt_output_path;
 
 int babeltrace_verbose, babeltrace_debug;
+int opt_field_names;
 
 void strlower(char *str)
 {
@@ -48,6 +51,7 @@ enum {
        OPT_LIST,
        OPT_VERBOSE,
        OPT_DEBUG,
+       OPT_NAMES,
 };
 
 static struct poptOption long_options[] = {
@@ -58,6 +62,7 @@ static struct poptOption long_options[] = {
        { "list", 'l', POPT_ARG_NONE, NULL, OPT_LIST, NULL, NULL },
        { "verbose", 'v', POPT_ARG_NONE, NULL, OPT_VERBOSE, NULL, NULL },
        { "debug", 'd', POPT_ARG_NONE, NULL, OPT_DEBUG, NULL, NULL },
+       { "names", 'n', POPT_ARG_NONE, NULL, OPT_NAMES, NULL, NULL },
        { NULL, 0, 0, NULL, 0, NULL, NULL },
 };
 
@@ -72,18 +77,19 @@ static void usage(FILE *fp)
        fprintf(fp, "BabelTrace Trace Converter %u.%u\n\n",
                BABELTRACE_VERSION_MAJOR,
                BABELTRACE_VERSION_MINOR);
-       fprintf(fp, "usage : babeltrace [OPTIONS] INPUT OUTPUT\n");
+       fprintf(fp, "usage : babeltrace [OPTIONS] INPUT <OUTPUT>\n");
        fprintf(fp, "\n");
-       fprintf(fp, "  INPUT               Input trace path\n");
-       fprintf(fp, "  OUTPUT              Output trace path\n");
+       fprintf(fp, "  INPUT                          Input trace path\n");
+       fprintf(fp, "  OUTPUT                         Output trace path (default: stdout)\n");
        fprintf(fp, "\n");
-       fprintf(fp, "  -i, --input-format  Input trace path\n");
-       fprintf(fp, "  -o, --output-format Input trace path\n");
+       fprintf(fp, "  -i, --input-format FORMAT      Input trace format (default: ctf)\n");
+       fprintf(fp, "  -o, --output-format FORMAT     Output trace format (default: text)\n");
        fprintf(fp, "\n");
-       fprintf(fp, "  -h, --help          This help message\n");
-       fprintf(fp, "  -l, --list          List available formats\n");
-       fprintf(fp, "  -v, --verbose       Verbose mode\n");
-       fprintf(fp, "  -d, --debug         Debug mode\n");
+       fprintf(fp, "  -h, --help                     This help message\n");
+       fprintf(fp, "  -l, --list                     List available formats\n");
+       fprintf(fp, "  -v, --verbose                  Verbose mode\n");
+       fprintf(fp, "  -d, --debug                    Debug mode\n");
+       fprintf(fp, "  -n, --names                    Print field names\n");
        list_formats(fp);
        fprintf(fp, "\n");
 }
@@ -121,6 +127,9 @@ static int parse_options(int argc, char **argv)
                case OPT_DEBUG:
                        babeltrace_debug = 1;
                        break;
+               case OPT_NAMES:
+                       opt_field_names = 1;
+                       break;
                default:
                        ret = -EINVAL;
                        goto end;
@@ -164,25 +173,22 @@ int main(int argc, char **argv)
 
        printf_verbose("Converting from file: %s\n", opt_input_path);
        printf_verbose("Converting from format: %s\n",
-               opt_input_format ? : "<autodetect>");
+               opt_input_format ? : "ctf <default>");
        printf_verbose("Converting to file: %s\n",
                opt_output_path ? : "<stdout>");
        printf_verbose("Converting to format: %s\n",
-               opt_output_format ? : "ctf");
+               opt_output_format ? : "text <default>");
 
-       if (!opt_input_format) {
-               fprintf(stdout, "[error] Input format autodetection not implemented yet.\n\n");
-               usage(stdout);
-               exit(EXIT_FAILURE);
-       }
+       if (!opt_input_format)
+               opt_input_format = "ctf";
+       if (!opt_output_format)
+               opt_output_format = "text";
        fmt_read = bt_lookup_format(g_quark_from_static_string(opt_input_format));
        if (!fmt_read) {
                fprintf(stdout, "[error] Format \"%s\" is not supported.\n\n",
                        opt_input_format);
                exit(EXIT_FAILURE);
        }
-       if (!opt_output_format)
-               opt_output_format = "ctf";
        fmt_write = bt_lookup_format(g_quark_from_static_string(opt_output_format));
        if (!fmt_write) {
                fprintf(stdout, "[error] format \"%s\" is not supported.\n\n",
@@ -197,12 +203,10 @@ int main(int argc, char **argv)
                goto error_td_read;
        }
 
-       if (!opt_output_path)
-               opt_output_path = "/dev/stdout";
-       td_write = fmt_write->open_trace(opt_output_path, O_WRONLY);
+       td_write = fmt_write->open_trace(opt_output_path, O_RDWR);
        if (!td_write) {
                fprintf(stdout, "Error opening trace \"%s\" for writing.\n\n",
-                       opt_output_path);
+                       opt_output_path ? : "<none>");
                goto error_td_write;
        }