seaweedfs/weed/shell/command_fs_mv.go

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package shell
import (
"context"
"fmt"
"io"
"path/filepath"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
)
func init() {
Commands = append(Commands, &commandFsMv{})
}
type commandFsMv struct {
}
func (c *commandFsMv) Name() string {
return "fs.mv"
}
func (c *commandFsMv) Help() string {
return `move or rename a file or a folder
fs.mv <source entry> <destination entry>
fs.mv /dir/file_name /dir2/filename2
fs.mv /dir/file_name /dir2
fs.mv /dir/dir2 /dir3/dir4/
fs.mv /dir/dir2 /dir3/new_dir
`
}
func (c *commandFsMv) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
filerServer, filerPort, sourcePath, err := commandEnv.parseUrl(args[0])
if err != nil {
return err
}
_, _, destinationPath, err := commandEnv.parseUrl(args[1])
if err != nil {
return err
}
ctx := context.Background()
sourceDir, sourceName := filer2.FullPath(sourcePath).DirAndName()
destinationDir, destinationName := filer2.FullPath(destinationPath).DirAndName()
return commandEnv.withFilerClient(ctx, filerServer, filerPort, func(client filer_pb.SeaweedFilerClient) error {
// collect destination entry info
destinationRequest := &filer_pb.LookupDirectoryEntryRequest{
Name: destinationDir,
Directory: destinationName,
}
respDestinationLookupEntry, err := client.LookupDirectoryEntry(ctx, destinationRequest)
var targetDir, targetName string
// moving a file or folder
if err == nil && respDestinationLookupEntry.Entry.IsDirectory {
// to a directory
targetDir = filepath.ToSlash(filepath.Join(destinationDir, destinationName))
targetName = sourceName
} else {
// to a file or folder
targetDir = destinationDir
targetName = destinationName
}
request := &filer_pb.AtomicRenameEntryRequest{
OldDirectory: sourceDir,
OldName: sourceName,
NewDirectory: targetDir,
NewName: targetName,
}
_, err = client.AtomicRenameEntry(ctx, request)
fmt.Fprintf(writer, "move: %s => %s\n", sourcePath, filer2.NewFullPath(targetDir, targetName))
return err
})
}