mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-06-25 20:09:30 +02:00
84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
package shell
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import (
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"fmt"
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"github.com/golang/protobuf/proto"
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"io"
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"sort"
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"github.com/golang/protobuf/jsonpb"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"github.com/chrislusf/seaweedfs/weed/util"
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)
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func init() {
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Commands = append(Commands, &commandFsMetaCat{})
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}
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type commandFsMetaCat struct {
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}
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func (c *commandFsMetaCat) Name() string {
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return "fs.meta.cat"
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}
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func (c *commandFsMetaCat) Help() string {
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return `print out the meta data content for a file or directory
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fs.meta.cat /dir/
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fs.meta.cat /dir/file_name
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`
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}
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func (c *commandFsMetaCat) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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path, err := commandEnv.parseUrl(findInputDirectory(args))
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if err != nil {
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return err
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}
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dir, name := util.FullPath(path).DirAndName()
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return commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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request := &filer_pb.LookupDirectoryEntryRequest{
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Name: name,
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Directory: dir,
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}
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respLookupEntry, err := filer_pb.LookupEntry(client, request)
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if err != nil {
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return err
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}
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m := jsonpb.Marshaler{
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EmitDefaults: true,
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Indent: " ",
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}
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sort.Slice(respLookupEntry.Entry.Chunks, func(i, j int) bool {
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if respLookupEntry.Entry.Chunks[i].Offset == respLookupEntry.Entry.Chunks[j].Offset {
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return respLookupEntry.Entry.Chunks[i].Mtime < respLookupEntry.Entry.Chunks[j].Mtime
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}
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return respLookupEntry.Entry.Chunks[i].Offset < respLookupEntry.Entry.Chunks[j].Offset
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})
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text, marshalErr := m.MarshalToString(respLookupEntry.Entry)
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if marshalErr != nil {
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return fmt.Errorf("marshal meta: %v", marshalErr)
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}
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fmt.Fprintf(writer, "%s\n", text)
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bytes, _ := proto.Marshal(respLookupEntry.Entry)
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gzippedBytes, _ := util.GzipData(bytes)
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// zstdBytes, _ := util.ZstdData(bytes)
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// fmt.Fprintf(writer, "chunks %d meta size: %d gzip:%d zstd:%d\n", len(respLookupEntry.Entry.Chunks), len(bytes), len(gzippedBytes), len(zstdBytes))
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fmt.Fprintf(writer, "chunks %d meta size: %d gzip:%d\n", len(respLookupEntry.Entry.Chunks), len(bytes), len(gzippedBytes))
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return nil
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})
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}
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