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108 lines
2.1 KiB
108 lines
2.1 KiB
package shell
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import (
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"context"
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"fmt"
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"io"
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"os"
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"github.com/chrislusf/seaweedfs/weed/filer2"
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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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"github.com/golang/protobuf/proto"
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)
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func init() {
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Commands = append(Commands, &commandFsMetaLoad{})
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}
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type commandFsMetaLoad struct {
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}
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func (c *commandFsMetaLoad) Name() string {
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return "fs.meta.load"
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}
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func (c *commandFsMetaLoad) Help() string {
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return `load saved filer meta data to restore the directory and file structure
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fs.meta.load <filer_host>-<port>-<time>.meta
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`
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}
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func (c *commandFsMetaLoad) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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if len(args) == 0 {
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fmt.Fprintf(writer, "missing a metadata file\n")
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return nil
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}
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filerServer, filerPort, path, err := commandEnv.parseUrl(findInputDirectory(nil))
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if err != nil {
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return err
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}
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fileName := args[len(args)-1]
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dst, err := os.OpenFile(fileName, os.O_RDONLY, 0644)
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if err != nil {
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return nil
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}
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defer dst.Close()
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var dirCount, fileCount uint64
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ctx := context.Background()
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err = commandEnv.withFilerClient(ctx, filerServer, filerPort, func(client filer_pb.SeaweedFilerClient) error {
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sizeBuf := make([]byte, 4)
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for {
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if n, err := dst.Read(sizeBuf); n != 4 {
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if err == io.EOF {
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return nil
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}
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return err
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}
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size := util.BytesToUint32(sizeBuf)
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data := make([]byte, int(size))
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if n, err := dst.Read(data); n != len(data) {
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return err
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}
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fullEntry := &filer_pb.FullEntry{}
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if err = proto.Unmarshal(data, fullEntry); err != nil {
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return err
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}
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if _, err = client.CreateEntry(ctx, &filer_pb.CreateEntryRequest{
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Directory: fullEntry.Dir,
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Entry: fullEntry.Entry,
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}); err != nil {
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return err
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}
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fmt.Fprintf(writer, "load %s\n", filer2.FullPath(fullEntry.Dir).Child(fullEntry.Entry.Name))
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if fullEntry.Entry.IsDirectory {
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dirCount++
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} else {
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fileCount++
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}
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}
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})
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if err == nil {
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fmt.Fprintf(writer, "\ntotal %d directories, %d files", dirCount, fileCount)
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fmt.Fprintf(writer, "\n%s is loaded to http://%s:%d%s\n", fileName, filerServer, filerPort, path)
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}
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return err
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}
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