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https://github.com/seaweedfs/seaweedfs.git
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71b33faef0
A POSIX filesystem does not implicitly create parent directories when they do not exist. Directories must be explicitly created and permissions be set. This also fixes a bug where asynchronous operations would create a file in the filer before the parent directory was created. If the file was a symlink or another special type of file the directory would inherit that type and become unusable in the mounted FS.
125 lines
3.1 KiB
Go
125 lines
3.1 KiB
Go
package mount
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import (
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"context"
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"fmt"
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"os"
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"strings"
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"syscall"
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"time"
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"github.com/hanwen/go-fuse/v2/fuse"
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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)
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/** Create a directory
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*
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* Note that the mode argument may not have the type specification
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* bits set, i.e. S_ISDIR(mode) can be false. To obtain the
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* correct directory type bits use mode|S_IFDIR
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* */
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func (wfs *WFS) Mkdir(cancel <-chan struct{}, in *fuse.MkdirIn, name string, out *fuse.EntryOut) (code fuse.Status) {
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if wfs.IsOverQuota {
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return fuse.Status(syscall.ENOSPC)
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}
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if s := checkName(name); s != fuse.OK {
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return s
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}
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newEntry := &filer_pb.Entry{
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Name: name,
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IsDirectory: true,
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Attributes: &filer_pb.FuseAttributes{
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Mtime: time.Now().Unix(),
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Crtime: time.Now().Unix(),
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FileMode: uint32(os.ModeDir) | in.Mode&^uint32(wfs.option.Umask),
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Uid: in.Uid,
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Gid: in.Gid,
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},
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}
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dirFullPath, code := wfs.inodeToPath.GetPath(in.NodeId)
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if code != fuse.OK {
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return
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}
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entryFullPath := dirFullPath.Child(name)
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err := wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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wfs.mapPbIdFromLocalToFiler(newEntry)
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defer wfs.mapPbIdFromFilerToLocal(newEntry)
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request := &filer_pb.CreateEntryRequest{
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Directory: string(dirFullPath),
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Entry: newEntry,
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Signatures: []int32{wfs.signature},
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SkipCheckParentDirectory: true,
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}
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glog.V(1).Infof("mkdir: %v", request)
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if err := filer_pb.CreateEntry(client, request); err != nil {
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glog.V(0).Infof("mkdir %s: %v", entryFullPath, err)
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return err
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}
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if err := wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry)); err != nil {
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return fmt.Errorf("local mkdir dir %s: %v", entryFullPath, err)
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}
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return nil
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})
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glog.V(3).Infof("mkdir %s: %v", entryFullPath, err)
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if err != nil {
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return fuse.EIO
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}
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inode := wfs.inodeToPath.Lookup(entryFullPath, newEntry.Attributes.Crtime, true, false, 0, true)
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wfs.outputPbEntry(out, inode, newEntry)
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return fuse.OK
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}
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/** Remove a directory */
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func (wfs *WFS) Rmdir(cancel <-chan struct{}, header *fuse.InHeader, name string) (code fuse.Status) {
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if name == "." {
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return fuse.Status(syscall.EINVAL)
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}
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if name == ".." {
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return fuse.Status(syscall.ENOTEMPTY)
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}
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dirFullPath, code := wfs.inodeToPath.GetPath(header.NodeId)
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if code != fuse.OK {
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return
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}
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entryFullPath := dirFullPath.Child(name)
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glog.V(3).Infof("remove directory: %v", entryFullPath)
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ignoreRecursiveErr := true // ignore recursion error since the OS should manage it
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err := filer_pb.Remove(wfs, string(dirFullPath), name, true, false, ignoreRecursiveErr, false, []int32{wfs.signature})
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if err != nil {
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glog.V(0).Infof("remove %s: %v", entryFullPath, err)
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if strings.Contains(err.Error(), filer.MsgFailDelNonEmptyFolder) {
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return fuse.Status(syscall.ENOTEMPTY)
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}
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return fuse.ENOENT
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}
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wfs.metaCache.DeleteEntry(context.Background(), entryFullPath)
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wfs.inodeToPath.RemovePath(entryFullPath)
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return fuse.OK
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}
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