From c3792c8352d72b9dac5e6032e9b0710e032e18d2 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sun, 27 Feb 2022 03:03:19 -0800
Subject: remove dead code

---
 weed/filesys/dir_link.go | 169 -----------------------------------------------
 1 file changed, 169 deletions(-)
 delete mode 100644 weed/filesys/dir_link.go

(limited to 'weed/filesys/dir_link.go')

diff --git a/weed/filesys/dir_link.go b/weed/filesys/dir_link.go
deleted file mode 100644
index 7fc98a5a6..000000000
--- a/weed/filesys/dir_link.go
+++ /dev/null
@@ -1,169 +0,0 @@
-package filesys
-
-import (
-	"context"
-	"github.com/chrislusf/seaweedfs/weed/util"
-	"os"
-	"syscall"
-	"time"
-
-	"github.com/chrislusf/seaweedfs/weed/filer"
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/seaweedfs/fuse"
-	"github.com/seaweedfs/fuse/fs"
-)
-
-var _ = fs.NodeLinker(&Dir{})
-var _ = fs.NodeSymlinker(&Dir{})
-var _ = fs.NodeReadlinker(&File{})
-
-const (
-	HARD_LINK_MARKER = '\x01'
-)
-
-func (dir *Dir) Link(ctx context.Context, req *fuse.LinkRequest, old fs.Node) (fs.Node, error) {
-
-	if err := checkName(req.NewName); err != nil {
-		return nil, err
-	}
-
-	oldFile, ok := old.(*File)
-	if !ok {
-		glog.Errorf("old node is not a file: %+v", old)
-	}
-
-	glog.V(4).Infof("Link: %v/%v -> %v/%v", oldFile.dir.FullPath(), oldFile.Name, dir.FullPath(), req.NewName)
-
-	oldEntry, err := oldFile.maybeLoadEntry(ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	if oldEntry == nil {
-		return nil, fuse.EIO
-	}
-
-	// update old file to hardlink mode
-	if len(oldEntry.HardLinkId) == 0 {
-		oldEntry.HardLinkId = append(util.RandomBytes(16), HARD_LINK_MARKER)
-		oldEntry.HardLinkCounter = 1
-	}
-	oldEntry.HardLinkCounter++
-	updateOldEntryRequest := &filer_pb.UpdateEntryRequest{
-		Directory:  oldFile.dir.FullPath(),
-		Entry:      oldEntry,
-		Signatures: []int32{dir.wfs.signature},
-	}
-
-	// CreateLink 1.2 : update new file to hardlink mode
-	oldEntry.Attributes.Mtime = time.Now().Unix()
-	request := &filer_pb.CreateEntryRequest{
-		Directory: dir.FullPath(),
-		Entry: &filer_pb.Entry{
-			Name:            req.NewName,
-			IsDirectory:     false,
-			Attributes:      oldEntry.Attributes,
-			Chunks:          oldEntry.Chunks,
-			Extended:        oldEntry.Extended,
-			HardLinkId:      oldEntry.HardLinkId,
-			HardLinkCounter: oldEntry.HardLinkCounter,
-		},
-		Signatures: []int32{dir.wfs.signature},
-	}
-
-	// apply changes to the filer, and also apply to local metaCache
-	err = dir.wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
-
-		dir.wfs.mapPbIdFromLocalToFiler(request.Entry)
-		defer dir.wfs.mapPbIdFromFilerToLocal(request.Entry)
-
-		if err := filer_pb.UpdateEntry(client, updateOldEntryRequest); err != nil {
-			glog.V(0).Infof("Link %v/%v -> %s/%s: %v", oldFile.dir.FullPath(), oldFile.Name, dir.FullPath(), req.NewName, err)
-			return fuse.EIO
-		}
-		dir.wfs.metaCache.UpdateEntry(context.Background(), filer.FromPbEntry(updateOldEntryRequest.Directory, updateOldEntryRequest.Entry))
-
-		if err := filer_pb.CreateEntry(client, request); err != nil {
-			glog.V(0).Infof("Link %v/%v -> %s/%s: %v", oldFile.dir.FullPath(), oldFile.Name, dir.FullPath(), req.NewName, err)
-			return fuse.EIO
-		}
-		dir.wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry))
-
-		return nil
-	})
-
-	if err != nil {
-		return nil, fuse.EIO
-	}
-
-	// create new file node
-	newNode := dir.newFile(req.NewName, 0)
-	newFile := newNode.(*File)
-
-	return newFile, err
-
-}
-
-func (dir *Dir) Symlink(ctx context.Context, req *fuse.SymlinkRequest) (fs.Node, error) {
-
-	if err := checkName(req.NewName); err != nil {
-		return nil, err
-	}
-
-	glog.V(4).Infof("Symlink: %v/%v to %v", dir.FullPath(), req.NewName, req.Target)
-
-	request := &filer_pb.CreateEntryRequest{
-		Directory: dir.FullPath(),
-		Entry: &filer_pb.Entry{
-			Name:        req.NewName,
-			IsDirectory: false,
-			Attributes: &filer_pb.FuseAttributes{
-				Mtime:         time.Now().Unix(),
-				Crtime:        time.Now().Unix(),
-				FileMode:      uint32((os.FileMode(0777) | os.ModeSymlink) &^ dir.wfs.option.Umask),
-				Uid:           req.Uid,
-				Gid:           req.Gid,
-				SymlinkTarget: req.Target,
-			},
-		},
-		Signatures: []int32{dir.wfs.signature},
-	}
-
-	err := dir.wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
-
-		dir.wfs.mapPbIdFromLocalToFiler(request.Entry)
-		defer dir.wfs.mapPbIdFromFilerToLocal(request.Entry)
-
-		if err := filer_pb.CreateEntry(client, request); err != nil {
-			glog.V(0).Infof("symlink %s/%s: %v", dir.FullPath(), req.NewName, err)
-			return fuse.EIO
-		}
-
-		dir.wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry))
-
-		return nil
-	})
-
-	symlink := dir.newFile(req.NewName, os.ModeSymlink)
-
-	return symlink, err
-
-}
-
-func (file *File) Readlink(ctx context.Context, req *fuse.ReadlinkRequest) (string, error) {
-
-	entry, err := file.maybeLoadEntry(ctx)
-	if err != nil {
-		return "", err
-	}
-
-	if os.FileMode(entry.Attributes.FileMode)&os.ModeSymlink == 0 {
-		return "", fuse.Errno(syscall.EINVAL)
-	}
-
-	glog.V(4).Infof("Readlink: %v/%v => %v", file.dir.FullPath(), file.Name, entry.Attributes.SymlinkTarget)
-
-	return entry.Attributes.SymlinkTarget, nil
-
-}
-- 
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