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package shell
import (
"fmt"
"github.com/golang/protobuf/jsonpb"
"github.com/golang/protobuf/proto"
"golang.org/x/exp/slices"
"io"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/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) {
path, err := commandEnv.parseUrl(findInputDirectory(args))
if err != nil {
return err
}
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
}
m := jsonpb.Marshaler{
EmitDefaults: true,
Indent: " ",
}
slices.SortFunc(respLookupEntry.Entry.Chunks, func(a, b *filer_pb.FileChunk) bool {
if a.Offset == b.Offset {
return a.Mtime < b.Mtime
}
return a.Offset < b.Offset
})
text, marshalErr := m.MarshalToString(respLookupEntry.Entry)
if marshalErr != nil {
return fmt.Errorf("marshal meta: %v", marshalErr)
}
fmt.Fprintf(writer, "%s\n", text)
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.Chunks), len(bytes), len(gzippedBytes), len(zstdBytes))
fmt.Fprintf(writer, "chunks %d meta size: %d gzip:%d\n", len(respLookupEntry.Entry.Chunks), len(bytes), len(gzippedBytes))
return nil
})
}
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