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[feature request]: add option -f to parse one file only #899

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[feature request]: add option -f to parse one file only #899

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19 changes: 14 additions & 5 deletions darshan-util/darshan-dxt-parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -26,14 +26,14 @@
#define OPTION_SHOW_INCOMPLETE (1 << 7) /* show what we have, even if log is incomplete */

static int usage (char *exename);
static int parse_args (int argc, char **argv, char **filename);
static int parse_args (int argc, char **argv, char **filename, char **only_file);

int main(int argc, char **argv)
{
int mask;
int ret;
int i, j;
char *filename;
char *filename, *only_file = NULL;
char *comp_str;
char tmp_string[4096] = {0};
darshan_fd fd;
Expand All @@ -51,7 +51,7 @@ int main(int argc, char **argv)
struct lustre_record_ref *lustre_rec_hash = NULL;
char *mod_buf = NULL;

mask = parse_args(argc, argv, &filename);
mask = parse_args(argc, argv, &filename, &only_file);

fd = darshan_log_open(filename);
if (!fd)
Expand Down Expand Up @@ -303,6 +303,8 @@ int main(int argc, char **argv)
break;
}
}
if (only_file != NULL && strcmp(only_file, rec_name) != 0)
continue; /* while (1) */
}

if (!mnt_pt)
Expand Down Expand Up @@ -354,10 +356,13 @@ int main(int argc, char **argv)
free(mnt_data_array);
}

if (only_file != NULL)
free(only_file);

return(ret);
}

static int parse_args (int argc, char **argv, char **filename)
static int parse_args (int argc, char **argv, char **filename, char **only_file)
{
int index;
int mask;
Expand All @@ -372,7 +377,7 @@ static int parse_args (int argc, char **argv, char **filename)

while(1)
{
int c = getopt_long(argc, argv, "", long_opts, &index);
int c = getopt_long(argc, argv, "f:", long_opts, &index);

if (c == -1) break;

Expand All @@ -381,6 +386,9 @@ static int parse_args (int argc, char **argv, char **filename)
case OPTION_SHOW_INCOMPLETE:
mask |= c;
break;
case 'f':
*only_file = strdup(optarg);
break;
case 0:
case '?':
default:
Expand All @@ -405,6 +413,7 @@ static int usage (char *exename)
{
fprintf(stderr, "Usage: %s [options] <filename>\n", exename);
fprintf(stderr, " --show-incomplete : display results even if log is incomplete\n");
fprintf(stderr, " -f path: display results for the given file only\n");

exit(1);
}
Expand Down