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package shell
import (
"context"
"flag"
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"io"
)
func init() {
Commands = append(Commands, &commandCollectionDelete{})
}
type commandCollectionDelete struct {
}
func (c *commandCollectionDelete) Name() string {
return "collection.delete"
}
func (c *commandCollectionDelete) Help() string {
return `delete specified collection
collection.delete -collection <collection_name> -force
`
}
func (c *commandCollectionDelete) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
colDeleteCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
collectionName := colDeleteCommand.String("collection", "", "collection to delete. Use '_default_' for the empty-named collection.")
applyBalancing := colDeleteCommand.Bool("force", false, "apply the collection")
if err = colDeleteCommand.Parse(args); err != nil {
return nil
}
infoAboutSimulationMode(writer, *applyBalancing, "-force")
if err = commandEnv.confirmIsLocked(args); err != nil {
return
}
if *collectionName == "" {
return fmt.Errorf("empty collection name is not allowed")
}
if *collectionName == "_default_" {
*collectionName = ""
}
if !*applyBalancing {
fmt.Fprintf(writer, "collection '%s' will be deleted. Use -force to apply the change.\n", *collectionName)
return nil
}
err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
_, err = client.CollectionDelete(context.Background(), &master_pb.CollectionDeleteRequest{
Name: *collectionName,
})
return err
})
if err != nil {
return
}
fmt.Fprintf(writer, "collection %s is deleted.\n", *collectionName)
return nil
}
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