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cli_capture.go
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cli_capture.go
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// Copyright 2021 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package cli
import (
"github.com/spf13/cobra"
cmdcontext "github.com/tikv/migration/cdc/pkg/cmd/context"
"github.com/tikv/migration/cdc/pkg/cmd/factory"
"github.com/tikv/migration/cdc/pkg/cmd/util"
)
// captureOptions defines flags for the `cli capture` command.
type captureOptions struct {
disableVersionCheck bool
}
// newCaptureOptions creates new captureOptions for the `cli capture` command.
func newCaptureOptions() *captureOptions {
return &captureOptions{}
}
// addFlags receives a *cobra.Command reference and binds
// flags related to template printing to it.
func (o *captureOptions) addFlags(cmd *cobra.Command) {
if o == nil {
return
}
cmd.PersistentFlags().BoolVar(&o.disableVersionCheck, "disable-version-check", false, "Disable version check")
_ = cmd.PersistentFlags().MarkHidden("disable-version-check")
}
// run checks the TiKVCDC cluster version.
func (o *captureOptions) run(f factory.Factory) error {
if o.disableVersionCheck {
return nil
}
ctx := cmdcontext.GetDefaultContext()
etcdClient, err := f.EtcdClient()
if err != nil {
return err
}
_, err = util.VerifyAndGetTiKVCDCClusterVersion(ctx, etcdClient)
if err != nil {
return err
}
return nil
}
// newCmdCapture creates the `cli capture` command.
func newCmdCapture(f factory.Factory) *cobra.Command {
o := newCaptureOptions()
cmds := &cobra.Command{
Use: "capture",
Short: "Manage capture (capture is a CDC server instance)",
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
return o.run(f)
},
}
cmds.AddCommand(
newCmdListCapture(f),
// TODO: add resign owner command
)
o.addFlags(cmds)
return cmds
}