add feature to mount a specific filer path to local directory

weed/command/mount.go

@@ -1,14 +1,15 @@
 package command
 
 type MountOptions struct {
-	filer            *string
-	filerGrpcPort    *int
-	dir              *string
-	collection       *string
-	replication      *string
-	ttlSec           *int
-	chunkSizeLimitMB *int
-	dataCenter       *string
+	filer              *string
+	filerGrpcPort      *int
+	filerMountRootPath *string
+	dir                *string
+	collection         *string
+	replication        *string
+	ttlSec             *int
+	chunkSizeLimitMB   *int
+	dataCenter         *string
 }
 
 var (
@@ -19,6 +20,7 @@ func init() {
 	cmdMount.Run = runMount // break init cycle
 	mountOptions.filer = cmdMount.Flag.String("filer", "localhost:8888", "weed filer location")
 	mountOptions.filerGrpcPort = cmdMount.Flag.Int("filer.grpc.port", 0, "filer grpc server listen port, default to http port + 10000")
+	mountOptions.filerMountRootPath = cmdMount.Flag.String("filer.path", "/", "mount this remote path from filer server")
 	mountOptions.dir = cmdMount.Flag.String("dir", ".", "mount weed filer to this directory")
 	mountOptions.collection = cmdMount.Flag.String("collection", "", "collection to create the files")
 	mountOptions.replication = cmdMount.Flag.String("replication", "000", "replication to create to files")

weed/command/mount_std.go

@@ -73,7 +73,7 @@ func runMount(cmd *Command, args []string) bool {
 	filerAddress := fmt.Sprintf("%s:%d", hostnameAndPort[0], filerGrpcPort)
 
 	err = fs.Serve(c, filesys.NewSeaweedFileSystem(
-		filerAddress, *mountOptions.collection, *mountOptions.replication, int32(*mountOptions.ttlSec),
+		filerAddress, *mountOptions.filerMountRootPath, *mountOptions.collection, *mountOptions.replication, int32(*mountOptions.ttlSec),
 		*mountOptions.chunkSizeLimitMB, *mountOptions.dataCenter))
 	if err != nil {
 		fuse.Unmount(*mountOptions.dir)