seaweedfs/weed/shell/command_collection_delete.go
chrislu 9f9ef1340c use streaming mode for long poll grpc calls
streaming mode would create separate grpc connections for each call.
this is to ensure the long poll connections are properly closed.
2021-12-26 00:15:03 -08:00

70 lines
1.6 KiB
Go

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
}
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
}