add -disk to filer command (#4247)

* add -disk to filer command

* add diskType to filer.grpc

* use filer.disk when filerWebDavOptions.disk is empty

* add filer.disk to weed server command.

---------

Co-authored-by: 三千院羽 <3000y@MacBook-Pro.lan>

weed/server/filer_server_handlers_write.go

@@ -4,12 +4,13 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
 	"net/http"
 	"os"
 	"strings"
 	"time"
 
+	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
+
 	"github.com/seaweedfs/seaweedfs/weed/glog"
 	"github.com/seaweedfs/seaweedfs/weed/operation"
 	"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
@@ -97,6 +98,11 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request, conte
 		return
 	}
 
+	// When DiskType is empty,use filer's -disk
+	if so.DiskType == "" {
+		so.DiskType = fs.option.DiskType
+	}
+
 	if query.Has("mv.from") {
 		fs.move(ctx, w, r, so)
 	} else {