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vitess_config.go
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/
vitess_config.go
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/*
*
* Copyright 2022 The Vitess Authors.
*
* 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 exec
import (
"fmt"
"sort"
"strconv"
"strings"
"github.com/vitessio/arewefastyet/go/infra/ansible"
"github.com/vitessio/arewefastyet/go/tools/git"
)
type (
vitessConfig struct {
vtgate, vttablet string
}
rawVitessVersionConfig struct {
version git.Version
value rawSingleVitessVersionConfig
}
rawSingleVitessVersionConfig = map[string]interface{}
)
func prepareVitessConfiguration(rawVitessConfig rawSingleVitessVersionConfig, vitessVersion git.Version, vitessConfig *vitessConfig) error {
if len(rawVitessConfig) == 0 {
return nil
}
var data []rawVitessVersionConfig
for rawVersion, value := range rawVitessConfig {
parsedVersion := strings.Split(rawVersion, "-")
if len(parsedVersion) == 0 {
continue
}
var err error
v := git.Version{}
if len(parsedVersion) > 0 {
v.Major, err = strconv.Atoi(parsedVersion[0])
if err != nil {
return err
}
}
if len(parsedVersion) > 1 {
v.Minor, err = strconv.Atoi(parsedVersion[1])
if err != nil {
return err
}
}
if len(parsedVersion) > 2 {
v.Patch, err = strconv.Atoi(parsedVersion[2])
if err != nil {
return err
}
}
data = append(data, rawVitessVersionConfig{
version: v,
value: value.(map[string]interface{}),
})
}
sort.Slice(data, func(i, j int) bool {
return git.CompareVersionNumbers(data[i].version, data[j].version) == 1
})
lastElem := rawVitessVersionConfig{}
for i := 0; i < len(data); i++ {
cmp := git.CompareVersionNumbers(vitessVersion, data[i].version)
if cmp == 1 || cmp == 0 {
lastElem = data[i]
break
}
}
err := getVitessConfigFromMap(lastElem.value, "vtgate", &vitessConfig.vtgate)
if err != nil {
return err
}
err = getVitessConfigFromMap(lastElem.value, "vttablet", &vitessConfig.vttablet)
if err != nil {
return err
}
return nil
}
func getVitessConfigFromMap(value map[string]interface{}, key string, set *string) error {
if elem, ok := value[key]; ok {
elem, str := elem.(string)
if !str {
return fmt.Errorf("could not parse the %s value for this vitess configuration", key)
}
*set = elem
}
return nil
}
func (vcfg vitessConfig) addToAnsible(ansibleCfg *ansible.Config) {
if len(vcfg.vtgate) != 0 {
ansibleCfg.AddExtraVar(ansible.KeyExtraFlagsVTGate, vcfg.vtgate)
}
if len(vcfg.vttablet) != 0 {
ansibleCfg.AddExtraVar(ansible.KeyExtraFlagsVTTablet, vcfg.vttablet)
}
}