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pump.go
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pump.go
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// Copyright 2020 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 scripts
import (
"bytes"
"os"
"path"
"text/template"
"github.com/pingcap/tiup/embed"
)
// PumpScript represent the data to generate Pump config
type PumpScript struct {
NodeID string
Host string
Port int
DeployDir string
DataDir string
LogDir string
NumaNode string
CommitTs int64
Endpoints []*PDScript
}
// NewPumpScript returns a PumpScript with given arguments
func NewPumpScript(nodeID, host, deployDir, dataDir, logDir string) *PumpScript {
return &PumpScript{
NodeID: nodeID,
Host: host,
Port: 8250,
DeployDir: deployDir,
DataDir: dataDir,
LogDir: logDir,
}
}
// WithPort set Port field of PumpScript
func (c *PumpScript) WithPort(port int) *PumpScript {
c.Port = port
return c
}
// WithNumaNode set NumaNode field of PumpScript
func (c *PumpScript) WithNumaNode(numa string) *PumpScript {
c.NumaNode = numa
return c
}
// AppendEndpoints add new PumpScript to Endpoints field
func (c *PumpScript) AppendEndpoints(ends ...*PDScript) *PumpScript {
c.Endpoints = append(c.Endpoints, ends...)
return c
}
// Config generate the config file data.
func (c *PumpScript) Config() ([]byte, error) {
fp := path.Join("templates", "scripts", "run_pump.sh.tpl")
tpl, err := embed.ReadTemplate(fp)
if err != nil {
return nil, err
}
return c.ConfigWithTemplate(string(tpl))
}
// ConfigToFile write config content to specific file.
func (c *PumpScript) ConfigToFile(file string) error {
config, err := c.Config()
if err != nil {
return err
}
return os.WriteFile(file, config, 0755)
}
// ConfigWithTemplate generate the Pump config content by tpl
func (c *PumpScript) ConfigWithTemplate(tpl string) ([]byte, error) {
tmpl, err := template.New("Pump").Parse(tpl)
if err != nil {
return nil, err
}
content := bytes.NewBufferString("")
if err := tmpl.Execute(content, c); err != nil {
return nil, err
}
return content.Bytes(), nil
}