[leo_storage][leo_backend_db] Cannot migrate old one to v1.2.9

[yosukehara]

That root cause is this fix. I'll solve this issue soon.

[yosukehara]

In the error case, leo_backend_db added "0" to a filename as below:

Error:

lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 00 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/00_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 00_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 10 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/10_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 10_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 20 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/20_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 20_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 30 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/30_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 30_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 40 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/40_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 40_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 50 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/50_63599485921/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 50_63599485921
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 60 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/60_63599485921/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 60_63599485921
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 70 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/70_63599485921/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 70_63599485921

Correct:

lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 0 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/0_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 0_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 1 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/1_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 1_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 2 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/2_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 2_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 3 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/3_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 3_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 4 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/4_63599485922/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 4_63599485922
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 5 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/5_63599485921/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 5_63599485921
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 6 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/6_63599485921/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 6_63599485921
lrwxr-xr-x   1 yosuke.hara  yosuke.hara   99 May 22 12:52 7 -> /Users/yosuke.hara/dev/leo-project/test/leofs-1.2.9/package/leo_storage/avs/metadata/7_63599485921/
drwxr-xr-x  14 yosuke.hara  yosuke.hara  476 May 22 12:52 7_63599485921