mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-02 00:19:15 +08:00
109 lines
2.1 KiB
Go
109 lines
2.1 KiB
Go
package shell
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/filer2"
|
|
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
|
|
"github.com/chrislusf/seaweedfs/weed/util"
|
|
"github.com/golang/protobuf/proto"
|
|
)
|
|
|
|
func init() {
|
|
Commands = append(Commands, &commandFsMetaLoad{})
|
|
}
|
|
|
|
type commandFsMetaLoad struct {
|
|
}
|
|
|
|
func (c *commandFsMetaLoad) Name() string {
|
|
return "fs.meta.load"
|
|
}
|
|
|
|
func (c *commandFsMetaLoad) Help() string {
|
|
return `load saved filer meta data to restore the directory and file structure
|
|
|
|
fs.meta.load <filer_host>-<port>-<time>.meta
|
|
|
|
`
|
|
}
|
|
|
|
func (c *commandFsMetaLoad) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
|
|
|
|
if len(args) == 0 {
|
|
fmt.Fprintf(writer, "missing a metadata file\n")
|
|
return nil
|
|
}
|
|
|
|
filerServer, filerPort, path, err := commandEnv.parseUrl(findInputDirectory(nil))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fileName := args[len(args)-1]
|
|
|
|
dst, err := os.OpenFile(fileName, os.O_RDONLY, 0644)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
defer dst.Close()
|
|
|
|
var dirCount, fileCount uint64
|
|
|
|
ctx := context.Background()
|
|
|
|
err = commandEnv.withFilerClient(ctx, filerServer, filerPort, func(client filer_pb.SeaweedFilerClient) error {
|
|
|
|
sizeBuf := make([]byte, 4)
|
|
|
|
for {
|
|
if n, err := dst.Read(sizeBuf); n != 4 {
|
|
if err == io.EOF {
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
|
|
size := util.BytesToUint32(sizeBuf)
|
|
|
|
data := make([]byte, int(size))
|
|
|
|
if n, err := dst.Read(data); n != len(data) {
|
|
return err
|
|
}
|
|
|
|
fullEntry := &filer_pb.FullEntry{}
|
|
if err = proto.Unmarshal(data, fullEntry); err != nil {
|
|
return err
|
|
}
|
|
|
|
if _, err = client.CreateEntry(ctx, &filer_pb.CreateEntryRequest{
|
|
Directory: fullEntry.Dir,
|
|
Entry: fullEntry.Entry,
|
|
}); err != nil {
|
|
return err
|
|
}
|
|
|
|
fmt.Fprintf(writer, "load %s\n", filer2.FullPath(fullEntry.Dir).Child(fullEntry.Entry.Name))
|
|
|
|
if fullEntry.Entry.IsDirectory {
|
|
dirCount++
|
|
} else {
|
|
fileCount++
|
|
}
|
|
|
|
}
|
|
|
|
})
|
|
|
|
if err == nil {
|
|
fmt.Fprintf(writer, "\ntotal %d directories, %d files", dirCount, fileCount)
|
|
fmt.Fprintf(writer, "\n%s is loaded to http://%s:%d%s\n", fileName, filerServer, filerPort, path)
|
|
}
|
|
|
|
return err
|
|
}
|