prettify output

[babeltrace.git] / converter / babeltrace.c

diff --git a/converter/babeltrace.c b/converter/babeltrace.c
index 70e43ccf7af67f197d3fc36057a82d679f6d6e9e..c888ec60dc05f71cbf4142ad1c270e0980043021 100644 (file)
--- a/converter/babeltrace.c
+++ b/converter/babeltrace.c
@@ -133,10 +133,6 @@ static int parse_options(int argc, char **argv)
                goto end;
        }
        opt_output_path = poptGetArg(pc);
-       if (!opt_output_path) {
-               ret = -EINVAL;
-               goto end;
-       }
 end:
        if (pc) {
                poptFreeContext(pc);
@@ -169,18 +165,19 @@ 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>");
-       printf_verbose("Converting to file: %s\n", opt_output_path);
+       printf_verbose("Converting to file: %s\n",
+               opt_output_path ? : "<stdout>");
        printf_verbose("Converting to format: %s\n",
                opt_output_format ? : "ctf");
 
        if (!opt_input_format) {
-               fprintf(stdout, "Error: input format autodetection not implemented yet.\n\n");
+               fprintf(stdout, "[error] Input format autodetection not implemented yet.\n\n");
                usage(stdout);
                exit(EXIT_FAILURE);
        }
        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",
+               fprintf(stdout, "[error] Format \"%s\" is not supported.\n\n",
                        opt_input_format);
                exit(EXIT_FAILURE);
        }
@@ -188,18 +185,20 @@ int main(int argc, char **argv)
                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",
+               fprintf(stdout, "[error] format \"%s\" is not supported.\n\n",
                        opt_output_format);
                exit(EXIT_FAILURE);
        }
 
        td_read = fmt_read->open_trace(opt_input_path, O_RDONLY);
        if (!td_read) {
-               fprintf(stdout, "Error opening trace \"%s\" for reading.\n\n",
+               fprintf(stdout, "[error] opening trace \"%s\" for reading.\n\n",
                        opt_input_path);
                goto error_td_read;
        }
 
+       if (!opt_output_path)
+               opt_output_path = "/dev/stdout";
        td_write = fmt_write->open_trace(opt_output_path, O_WRONLY);
        if (!td_write) {
                fprintf(stdout, "Error opening trace \"%s\" for writing.\n\n",