extract files from CAR file.
if the parent
path is none, will use current path as root path.
cid
is the root cid
extract files to current path from CAR file.
cid
is the root cid
write ipld to output
file_cid
is the file cid to write
output
is the out the file write to.
the list file_name from car file by reader.
the list car file by reader.
reader
is the CarReader
list_f
is the list call function, first parameter is cid, the second is cid path.
the list_cid file_name from car file by reader.
archive the directory to the target CAR format file
path
is the directory archived in to the CAR file.
to_carfile
is the target file.
walk all directory, and record the directory informations.
WalkPath
contain the index in children.