featurebase/ctl/restore.go
2018-05-08 17:10:36 -05:00

87 lines
2 KiB
Go

// Copyright 2017 Pilosa Corp.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ctl
import (
"context"
"io"
"os"
"github.com/pilosa/pilosa"
"github.com/pilosa/pilosa/server"
"github.com/pkg/errors"
)
// RestoreCommand represents a command for restoring a frame from a backup.
type RestoreCommand struct {
// Destination host and port.
Host string
// Name of the index & frame to backup.
Index string
Frame string
View string
// Import file to read from.
Path string
// Standard input/output
*pilosa.CmdIO
TLS server.TLSConfig
}
// NewRestoreCommand returns a new instance of RestoreCommand.
func NewRestoreCommand(stdin io.Reader, stdout, stderr io.Writer) *RestoreCommand {
return &RestoreCommand{
CmdIO: pilosa.NewCmdIO(stdin, stdout, stderr),
}
}
// Run executes the restore command.
func (cmd *RestoreCommand) Run(ctx context.Context) error {
// Validate arguments.
if cmd.Path == "" {
return errors.New("backup file required")
}
// Create a client to the server.
client, err := CommandClient(cmd)
if err != nil {
return errors.Wrap(err, "creating client")
}
// Open backup file.
f, err := os.Open(cmd.Path)
if err != nil {
return errors.Wrap(err, "opening file")
}
defer f.Close()
// Restore backup file to the cluster.
if err := client.RestoreFrom(ctx, f, cmd.Index, cmd.Frame, cmd.View); err != nil {
return errors.Wrap(err, "restoring")
}
return nil
}
func (cmd *RestoreCommand) TLSHost() string {
return cmd.Host
}
func (cmd *RestoreCommand) TLSConfiguration() server.TLSConfig {
return cmd.TLS
}