#include "util.h"
#include "def.h"
+#include "build.h"
#include "readahead-common.h"
unsigned arg_files_max = 16*1024;
off_t arg_file_size_max = READAHEAD_FILE_SIZE_MAX;
usec_t arg_timeout = 2*USEC_PER_MINUTE;
-static int help(void) {
-
- printf("%s [OPTIONS...] collect [DIRECTORY]\n\n"
+static void help(void) {
+ printf("%1$s [OPTIONS...] collect [DIRECTORY]\n\n"
"Collect read-ahead data on early boot.\n\n"
" -h --help Show this help\n"
- " --max-files=INT Maximum number of files to read ahead\n"
+ " --version Show package version\n"
+ " --files-max=INT Maximum number of files to read ahead\n"
" --file-size-max=BYTES Maximum size of files to read ahead\n"
- " --timeout=USEC Maximum time to spend collecting data\n\n\n",
- program_invocation_short_name);
-
- printf("%s [OPTIONS...] replay [DIRECTORY]\n\n"
+ " --timeout=USEC Maximum time to spend collecting data\n"
+ "\n\n"
+ "%1$s [OPTIONS...] replay [DIRECTORY]\n\n"
"Replay collected read-ahead data on early boot.\n\n"
" -h --help Show this help\n"
- " --file-size-max=BYTES Maximum size of files to read ahead\n\n\n",
- program_invocation_short_name);
-
- printf("%s [OPTIONS...] analyze [PACK FILE]\n\n"
+ " --version Show package version\n"
+ " --file-size-max=BYTES Maximum size of files to read ahead\n"
+ "\n\n"
+ "%1$s [OPTIONS...] analyze [PACK-FILE]\n\n"
"Analyze collected read-ahead data.\n\n"
- " -h --help Show this help\n",
+ " -h --help Show this help\n"
+ " --version Show package version\n",
program_invocation_short_name);
-
- return 0;
}
static int parse_argv(int argc, char *argv[]) {
enum {
- ARG_FILES_MAX = 0x100,
+ ARG_VERSION = 0x100,
+ ARG_FILES_MAX,
ARG_FILE_SIZE_MAX,
ARG_TIMEOUT
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
{ "files-max", required_argument, NULL, ARG_FILES_MAX },
{ "file-size-max", required_argument, NULL, ARG_FILE_SIZE_MAX },
{ "timeout", required_argument, NULL, ARG_TIMEOUT },
- { NULL, 0, NULL, 0 }
+ {}
};
int c;
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
switch (c) {
help();
return 0;
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
case ARG_FILES_MAX:
if (safe_atou(optarg, &arg_files_max) < 0 || arg_files_max <= 0) {
log_error("Failed to parse maximum number of files %s.", optarg);
return -EINVAL;
default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
+ assert_not_reached("Unhandled option");
}
- }
if (optind != argc-1 &&
optind != argc-2) {
- help();
+ log_error("%s: wrong number of arguments.",
+ program_invocation_short_name);
return -EINVAL;
}