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feat(dbm-services): 模拟执行只备份导入变更SQL相关库 TencentBlueKing#8318
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174 changes: 174 additions & 0 deletions
174
dbm-services/mysql/db-simulation/app/syntax/parse_relation_db.go
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/* | ||
* TencentBlueKing is pleased to support the open source community by making 蓝鲸智云-DB管理系统(BlueKing-BK-DBM) available. | ||
* Copyright (C) 2017-2023 THL A29 Limited, a Tencent company. All rights reserved. | ||
* Licensed under the MIT License (the "License"); you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at https://opensource.org/licenses/MIT | ||
* 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. | ||
*/ | ||
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package syntax | ||
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import ( | ||
"bufio" | ||
"encoding/json" | ||
"errors" | ||
"io" | ||
"os" | ||
"runtime/debug" | ||
"slices" | ||
"sync" | ||
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"github.com/samber/lo" | ||
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"dbm-services/common/go-pubpkg/logger" | ||
) | ||
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// DoParseRelationDbs parse relation db from sql file | ||
func (tf *TmysqlParseFile) DoParseRelationDbs(version string) (createDbs, relationDbs []string, dumpAll bool, | ||
err error) { | ||
logger.Info("doing....") | ||
tf.result = make(map[string]*CheckInfo) | ||
tf.tmpWorkdir = tf.BaseWorkdir | ||
tf.mu = sync.Mutex{} | ||
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if !tf.IsLocalFile { | ||
if err = tf.Init(); err != nil { | ||
logger.Error("Do init failed %s", err.Error()) | ||
return nil, nil, false, err | ||
} | ||
if err = tf.Downloadfile(); err != nil { | ||
logger.Error("failed to download sql file from the product library %s", err.Error()) | ||
return nil, nil, false, err | ||
} | ||
} | ||
// 最后删除临时目录,不会返回错误 | ||
defer tf.delTempDir() | ||
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errChan := make(chan error, 1) | ||
alreadExecutedSqlfileChan := make(chan string, len(tf.Param.FileNames)) | ||
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go func() { | ||
if err = tf.Execute(alreadExecutedSqlfileChan, version); err != nil { | ||
logger.Error("failed to execute tmysqlparse: %s", err.Error()) | ||
errChan <- err | ||
} | ||
close(alreadExecutedSqlfileChan) | ||
}() | ||
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logger.Info("start to analyze the parsing result") | ||
createDbs, relationDbs, dumpAll, err = tf.doParseInchan(alreadExecutedSqlfileChan, version) | ||
if err != nil { | ||
logger.Error("failed to analyze the parsing result:%s", err.Error()) | ||
return nil, nil, false, err | ||
} | ||
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return createDbs, relationDbs, dumpAll, nil | ||
} | ||
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// doParseInchan RelationDbs do parse relation db | ||
func (t *TmysqlParse) doParseInchan(alreadExecutedSqlfileCh chan string, | ||
mysqlVersion string) (createDbs []string, relationDbs []string, dumpAll bool, err error) { | ||
var errs []error | ||
c := make(chan struct{}, 10) | ||
errChan := make(chan error, 5) | ||
wg := &sync.WaitGroup{} | ||
stopChan := make(chan struct{}) | ||
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for sqlfile := range alreadExecutedSqlfileCh { | ||
wg.Add(1) | ||
c <- struct{}{} | ||
go func(fileName string) { | ||
defer wg.Done() | ||
cdbs, dbs, dumpAllDbs, err := t.analyzeRelationDbs(fileName, mysqlVersion) | ||
if err != nil { | ||
errChan <- err | ||
} | ||
if dumpAllDbs { | ||
dumpAll = true | ||
stopChan <- struct{}{} | ||
} | ||
if len(dbs) > 0 { | ||
t.mu.Lock() | ||
relationDbs = append(relationDbs, dbs...) | ||
createDbs = append(createDbs, cdbs...) | ||
t.mu.Unlock() | ||
} | ||
<-c | ||
}(sqlfile) | ||
} | ||
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go func() { | ||
wg.Wait() | ||
close(errChan) | ||
stopChan <- struct{}{} | ||
}() | ||
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for { | ||
select { | ||
case err := <-errChan: | ||
errs = append(errs, err) | ||
case <-stopChan: | ||
return createDbs, relationDbs, dumpAll, errors.Join(errs...) | ||
} | ||
} | ||
} | ||
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// analyzeRelationDbs 分析变更sql相关的db | ||
func (t *TmysqlParse) analyzeRelationDbs(inputfileName, mysqlVersion string) ( | ||
createDbs []string, | ||
relationDbs []string, | ||
dumpAll bool, | ||
err error) { | ||
defer func() { | ||
if r := recover(); r != nil { | ||
logger.Error("panic error:%v,stack:%s", r, string(debug.Stack())) | ||
} | ||
}() | ||
t.result[inputfileName] = &CheckInfo{} | ||
f, err := os.Open(t.getAbsoutputfilePath(inputfileName, mysqlVersion)) | ||
if err != nil { | ||
logger.Error("open file failed %s", err.Error()) | ||
return nil, nil, false, err | ||
} | ||
defer f.Close() | ||
reader := bufio.NewReader(f) | ||
for { | ||
line, errx := reader.ReadBytes(byte('\n')) | ||
if errx != nil { | ||
if errx == io.EOF { | ||
break | ||
} | ||
logger.Error("read Line Error %s", errx.Error()) | ||
return nil, nil, false, errx | ||
} | ||
if len(line) == 1 && line[0] == byte('\n') { | ||
continue | ||
} | ||
var res ParseLineQueryBase | ||
if err = json.Unmarshal(line, &res); err != nil { | ||
logger.Error("json unmasrshal line:%s failed %s", string(line), err.Error()) | ||
return nil, nil, false, err | ||
} | ||
// 判断是否有语法错误 | ||
if res.ErrorCode != 0 { | ||
return nil, nil, false, err | ||
} | ||
if slices.Contains([]string{SQLTypeCreateProcedure, SQLTypeCreateFunction, SQLTypeCreateView, SQLTypeCreateTrigger}, | ||
res.Command) { | ||
return nil, nil, true, nil | ||
} | ||
if lo.IsEmpty(res.DbName) { | ||
continue | ||
} | ||
// create db not need dump db | ||
if slices.Contains([]string{SQLTypeCreateDb}, res.Command) { | ||
createDbs = append(createDbs, res.DbName) | ||
continue | ||
} | ||
relationDbs = append(relationDbs, res.DbName) | ||
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} | ||
return createDbs, relationDbs, false, nil | ||
} |
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