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limine-deploy: Greatly improve usage help. Addresses #197

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This commit is contained in:
mintsuki 2022-07-14 15:03:34 +02:00
parent dc0d9f8be8
commit 6a742881a8
1 changed files with 20 additions and 6 deletions
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26
host/limine-deploy.c
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@ -480,6 +480,18 @@ static void undeploy(void) {
static void usage(const char *name) {
printf("Usage: %s <device> [GPT partition index]\n", name);
printf("\n");
printf(" --force-mbr Force MBR detection to work even if the\n");
printf(" safety checks fail (DANGEROUS!)\n");
printf("\n");
printf(" --undeploy Reverse the entire deployment procedure\n");
printf("\n");
printf(" --undeploy-data-file=<filename>\n");
printf(" Set the input (for --undeploy) or output file\n");
printf(" name of the file which contains undeploy data\n");
printf("\n");
printf(" --help | -h Display this help message\n");
printf("\n");
#ifdef IS_WINDOWS
system("pause");
#endif
@ -500,11 +512,14 @@ int main(int argc, char *argv[]) {
if (argc < 2) {
usage(argv[0]);
goto cleanup;
return EXIT_FAILURE;
}
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "--force-mbr") == 0) { // TODO: add to usage
if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0) {
usage(argv[0]);
return EXIT_SUCCESS;
} else if (strcmp(argv[i], "--force-mbr") == 0) {
if (force_mbr) {
fprintf(stderr, "Warning: --force-mbr already set.\n");
}
@ -521,15 +536,14 @@ int main(int argc, char *argv[]) {
undeploy_file = argv[i] + 21;
if (strlen(undeploy_file) == 0) {
fprintf(stderr, "ERROR: Undeploy data file has a zero-length name!\n");
undeploy_file = NULL;
goto cleanup;
return EXIT_FAILURE;
}
} else {
if (device != NULL) { // [GPT partition index]
part_ndx = argv[i]; // TODO: Make this non-positional?
} else if ((device = fopen(argv[i], "r+b")) == NULL) { // <device>
perror("ERROR");
goto cleanup;
return EXIT_FAILURE;
}
}
}
@ -537,7 +551,7 @@ int main(int argc, char *argv[]) {
if (device == NULL) {
fprintf(stderr, "ERROR: No device specified\n");
usage(argv[0]);
goto cleanup;
return EXIT_FAILURE;
}
if (!device_init())