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70 lines
1.6 KiB
70 lines
1.6 KiB
package meta_cache
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import (
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"context"
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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/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/util"
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)
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func EnsureVisited(mc *MetaCache, client filer_pb.FilerClient, dirPath util.FullPath) error {
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currentPath := dirPath
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for {
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// the directory children are already cached
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// so no need for this and upper directories
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if mc.isCachedFn(currentPath) {
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return nil
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}
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if err := doEnsureVisited(mc, client, currentPath); err != nil {
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return err
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}
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// continue to parent directory
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if currentPath != mc.root {
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parent, _ := currentPath.DirAndName()
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currentPath = util.FullPath(parent)
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} else {
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break
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}
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}
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return nil
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}
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func doEnsureVisited(mc *MetaCache, client filer_pb.FilerClient, path util.FullPath) error {
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glog.V(4).Infof("ReadDirAllEntries %s ...", path)
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err := util.Retry("ReadDirAllEntries", func() error {
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return filer_pb.ReadDirAllEntries(client, path, "", func(pbEntry *filer_pb.Entry, isLast bool) error {
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entry := filer.FromPbEntry(string(path), pbEntry)
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if IsHiddenSystemEntry(string(path), entry.Name()) {
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return nil
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}
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if err := mc.doInsertEntry(context.Background(), entry); err != nil {
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glog.V(0).Infof("read %s: %v", entry.FullPath, err)
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return err
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}
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return nil
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})
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})
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if err != nil {
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err = fmt.Errorf("list %s: %v", path, err)
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} else {
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mc.markCachedFn(path)
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}
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return err
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}
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func IsHiddenSystemEntry(dir, name string) bool {
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return dir == "/" && (name == "topics" || name == "etc")
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}
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