Merge pull request #3 from filedrive-team/feature

Modify subcommand

Makefile

@@ -1,3 +1,3 @@
 .PHONY: build
 build:
-	go build -ldflags "-s -w" -o graphsplit graphsplit.go utils.go retrieve.go
+	go build -ldflags "-s -w" -o graphsplit graphsplit.go utils.go restore.go

README.md

@@ -43,12 +43,12 @@ Import car file to IPFS:
 ipfs dag import /path/to/car-dir/car-file
 ```
 
-Retrieve files:
+Restore files:
 ```sh
 # car-path: directory or file, in form of .car
 # output-dir: usually just be the same as /path/to/output-dir
-# parallel: number goroutines run when retrieving
-./graphsplit retrieve \
+# parallel: number goroutines run when restoring
+./graphsplit restore \
 --car-path=/path/to/car-path \
 --output-dir=/path/to/output-dir \
 --parallel=2

graphsplit.go

@@ -16,7 +16,7 @@ func main() {
 	logging.SetLogLevel("*", "INFO")
 	local := []*cli.Command{
 		chunkCmd,
-		retrieveCmd,
+		restoreCmd,
 	}
 
 	app := &cli.App{
@@ -170,9 +170,9 @@ var chunkCmd = &cli.Command{
 	},
 }
 
-var retrieveCmd = &cli.Command{
-	Name:  "retrieve",
-	Usage: "Retrieve files from CAR files",
+var restoreCmd = &cli.Command{
+	Name:  "restore",
+	Usage: "Restore files from CAR files",
 	Flags: []cli.Flag{
 		&cli.StringFlag{
 			Name:     "car-path",