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90 lines
2.1 KiB
90 lines
2.1 KiB
package mount
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import (
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"errors"
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"fmt"
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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/mount/meta_cache"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/util"
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"path/filepath"
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)
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func (wfs *WFS) subscribeFilerConfEvents() (*meta_cache.MetadataFollower, error) {
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confDir := filer.DirectoryEtcSeaweedFS
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confName := filer.FilerConfName
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confFullName := filepath.Join(filer.DirectoryEtcSeaweedFS, filer.FilerConfName)
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// read current conf
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err := wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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content, err := filer.ReadInsideFiler(client, confDir, confName)
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if err != nil {
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return err
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}
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fc := filer.NewFilerConf()
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if len(content) > 0 {
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if err := fc.LoadFromBytes(content); err != nil {
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return fmt.Errorf("parse %s: %v", confFullName, err)
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}
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}
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wfs.FilerConf = fc
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return nil
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})
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if err != nil {
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if errors.Is(err, filer_pb.ErrNotFound) {
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glog.V(0).Infof("fuse filer conf %s not found", confFullName)
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} else {
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return nil, err
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}
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}
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processEventFn := func(resp *filer_pb.SubscribeMetadataResponse) error {
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message := resp.EventNotification
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if message.NewEntry == nil {
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return nil
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}
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dir := resp.Directory
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name := resp.EventNotification.NewEntry.Name
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if dir != confDir || name != confName {
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return nil
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}
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content := message.NewEntry.Content
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fc := filer.NewFilerConf()
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if len(content) > 0 {
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if err = fc.LoadFromBytes(content); err != nil {
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return fmt.Errorf("parse %s: %v", confFullName, err)
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}
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}
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wfs.FilerConf = fc
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return nil
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}
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return &meta_cache.MetadataFollower{
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PathPrefixToWatch: confFullName,
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ProcessEventFn: processEventFn,
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}, nil
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}
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func (wfs *WFS) wormEnabledForEntry(path util.FullPath, entry *filer_pb.Entry) bool {
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if entry == nil || entry.Attributes == nil {
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return false
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}
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if wfs.FilerConf == nil {
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return false
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}
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rule := wfs.FilerConf.MatchStorageRule(string(path))
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if !rule.Worm {
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return false
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}
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return entry.Attributes.FileSize > 0 || entry.Attributes.Crtime != entry.Attributes.Mtime
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}
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