seaweedfs/weed/shell/command_fs_meta_cat.go

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package shell
import (
"fmt"
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"google.golang.org/protobuf/proto"
"io"
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"sort"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/util"
)
func init() {
Commands = append(Commands, &commandFsMetaCat{})
}
type commandFsMetaCat struct {
}
func (c *commandFsMetaCat) Name() string {
return "fs.meta.cat"
}
func (c *commandFsMetaCat) Help() string {
return `print out the meta data content for a file or directory
fs.meta.cat /dir/
fs.meta.cat /dir/file_name
`
}
func (c *commandFsMetaCat) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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path, err := commandEnv.parseUrl(findInputDirectory(args))
if err != nil {
return err
}
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dir, name := util.FullPath(path).DirAndName()
return commandEnv.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.LookupDirectoryEntryRequest{
Name: name,
Directory: dir,
}
respLookupEntry, err := filer_pb.LookupEntry(client, request)
if err != nil {
return err
}
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chunks := respLookupEntry.Entry.Chunks
sort.Slice(chunks, func(i, j int) bool {
return chunks[i].Offset < chunks[j].Offset
})
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filer.ProtoToText(writer, respLookupEntry.Entry)
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bytes, _ := proto.Marshal(respLookupEntry.Entry)
gzippedBytes, _ := util.GzipData(bytes)
// zstdBytes, _ := util.ZstdData(bytes)
// fmt.Fprintf(writer, "chunks %d meta size: %d gzip:%d zstd:%d\n", len(respLookupEntry.Entry.GetChunks()), len(bytes), len(gzippedBytes), len(zstdBytes))
fmt.Fprintf(writer, "chunks %d meta size: %d gzip:%d\n", len(respLookupEntry.Entry.GetChunks()), len(bytes), len(gzippedBytes))
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return nil
})
}