github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/pkg/cmd/redo/meta.go (about)

     1  // Copyright 2021 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package redo
    15  
    16  import (
    17  	"github.com/pingcap/tiflow/pkg/applier"
    18  	cmdcontext "github.com/pingcap/tiflow/pkg/cmd/context"
    19  	"github.com/spf13/cobra"
    20  )
    21  
    22  // metaOptions defines flags for the `redo meta` command.
    23  type metaOptions struct {
    24  	options
    25  }
    26  
    27  // newMetaOptions creates new MetaOptions for the `redo apply` command.
    28  func newMetaOptions() *metaOptions {
    29  	return &metaOptions{}
    30  }
    31  
    32  // run runs the `redo meta` command.
    33  func (o *metaOptions) run(cmd *cobra.Command) error {
    34  	ctx := cmdcontext.GetDefaultContext()
    35  
    36  	cfg := &applier.RedoApplierConfig{
    37  		Storage: o.storage,
    38  		Dir:     o.dir,
    39  	}
    40  	ap := applier.NewRedoApplier(cfg)
    41  	checkpointTs, resolvedTs, err := ap.ReadMeta(ctx)
    42  	if err != nil {
    43  		return err
    44  	}
    45  	cmd.Printf("checkpoint-ts:%d, resolved-ts:%d\n", checkpointTs, resolvedTs)
    46  	return nil
    47  }
    48  
    49  // newCmdMeta creates the `redo meta` command.
    50  func newCmdMeta(opt *options) *cobra.Command {
    51  	command := &cobra.Command{
    52  		Use:   "meta",
    53  		Short: "read redo log meta",
    54  		RunE: func(cmd *cobra.Command, args []string) error {
    55  			o := newMetaOptions()
    56  			o.options = *opt
    57  			return o.run(cmd)
    58  		},
    59  	}
    60  
    61  	return command
    62  }