Add an option for setting the set uuid

2 files changed, 11 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d03d148
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+make-bcache
+probe-bcache
+.*
diff --git a/make-bcache.c b/make-bcache.c
index b6034fe..3d2d3a2 100644
--- a/make-bcache.c
+++ b/make-bcache.c
@@ -65,7 +65,8 @@ void usage()
 	       "	-b bucket size\n"
 	       "	-w block size (hard sector size of SSD, often 2k)\n"
 	       "	-j journal size, in buckets\n"
-	       "	-U UUID\n");
+	       "	-U UUID\n"
+	       "	-S Set UUID\n");
 	exit(EXIT_FAILURE);
 }
 
@@ -105,6 +106,12 @@ int main(int argc, char **argv)
 				exit(EXIT_FAILURE);
 			}
 			break;
+		case 'S':
+			if (uuid_parse(optarg, sb.set_uuid)) {
+				printf("Bad uuid\n");
+				exit(EXIT_FAILURE);
+			}
+			break;
 		}
 
 	if (!sb.block_size)