shell: add commands for bucket

weed/shell/command_bucket_delete.go

@@ -0,0 +1,73 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"io"
+
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+)
+
+func init() {
+	Commands = append(Commands, &commandBucketDelete{})
+}
+
+type commandBucketDelete struct {
+}
+
+func (c *commandBucketDelete) Name() string {
+	return "bucket.delete"
+}
+
+func (c *commandBucketDelete) Help() string {
+	return `delete a bucket by a given name
+
+	bucket.delete -name <bucket_name>
+`
+}
+
+func (c *commandBucketDelete) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	bucketCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	bucketName := bucketCommand.String("name", "", "bucket name")
+	if err = bucketCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	if *bucketName == "" {
+		return fmt.Errorf("empty bucket name")
+	}
+
+	filerServer, filerPort, _, parseErr := commandEnv.parseUrl(findInputDirectory(bucketCommand.Args()))
+	if parseErr != nil {
+		return parseErr
+	}
+
+	ctx := context.Background()
+
+	err = commandEnv.withFilerClient(ctx, filerServer, filerPort, func(ctx context.Context, client filer_pb.SeaweedFilerClient) error {
+
+		resp, err := client.GetFilerConfiguration(ctx, &filer_pb.GetFilerConfigurationRequest{})
+		if err != nil {
+			return fmt.Errorf("get filer %s:%d configuration: %v", filerServer, filerPort, err)
+		}
+		filerBucketsPath := resp.DirBuckets
+
+		if _, err := client.DeleteEntry(ctx, &filer_pb.DeleteEntryRequest{
+			Directory:            filerBucketsPath,
+			Name:                 *bucketName,
+			IsDeleteData:         false,
+			IsRecursive:          true,
+			IgnoreRecursiveError: true,
+		}); err != nil {
+			return err
+		}
+
+		return nil
+
+	})
+
+	return err
+
+}