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