├── .gitignore ├── go.mod ├── xlog ├── options.go └── xlog.go ├── release └── upload_asset.sh ├── README.md ├── common └── common.go ├── loader.go ├── main.go ├── dumper.go ├── go.sum └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | .vscode 2 | .idea -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module mysqldump 2 | 3 | go 1.13 4 | 5 | require ( 6 | github.com/go-sql-driver/mysql v1.5.0 7 | github.com/go-xorm/xorm v0.7.9 8 | github.com/kr/pretty v0.2.0 // indirect 9 | xorm.io/core v0.7.2 10 | ) 11 | -------------------------------------------------------------------------------- /xlog/options.go: -------------------------------------------------------------------------------- 1 | package log 2 | 3 | var ( 4 | defaultName = " " 5 | defaultLevel = DEBUG 6 | ) 7 | 8 | // Options used for the options of the xlog. 9 | type Options struct { 10 | Name string 11 | Level LogLevel 12 | } 13 | 14 | // Option func. 15 | type Option func(*Options) 16 | 17 | func newOptions(opts ...Option) *Options { 18 | opt := &Options{} 19 | for _, o := range opts { 20 | o(opt) 21 | } 22 | 23 | if len(opt.Name) == 0 { 24 | opt.Name = defaultName 25 | } 26 | 27 | if opt.Level == 0 { 28 | opt.Level = defaultLevel 29 | } 30 | return opt 31 | } 32 | 33 | // Name used to set the name. 34 | func Name(v string) Option { 35 | return func(o *Options) { 36 | o.Name = v 37 | } 38 | } 39 | 40 | // Level used to set the log level. 41 | func Level(v LogLevel) Option { 42 | return func(o *Options) { 43 | o.Level = v 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /release/upload_asset.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | GITHUB_TOKEN="" 4 | 5 | RELEASE_ID=`curl -H 'Cache-Control: no-cache' -s https://api.github.com/repos/Jrohy/mysqldump/releases/latest|grep id|awk 'NR==1{print $2}'|sed 's/,//'` 6 | 7 | function uploadfile() { 8 | FILE=$1 9 | CTYPE=$(file -b --mime-type $FILE) 10 | 11 | curl -H "Authorization: token ${GITHUB_TOKEN}" -H "Content-Type: ${CTYPE}" --data-binary @$FILE "https://uploads.github.com/repos/Jrohy/mysqldump/releases/${RELEASE_ID}/assets?name=$(basename $FILE)" 12 | 13 | echo "" 14 | } 15 | 16 | function upload() { 17 | FILE=$1 18 | DGST=$1.dgst 19 | openssl dgst -md5 $FILE | sed 's/([^)]*)//g' >> $DGST 20 | openssl dgst -sha1 $FILE | sed 's/([^)]*)//g' >> $DGST 21 | openssl dgst -sha256 $FILE | sed 's/([^)]*)//g' >> $DGST 22 | openssl dgst -sha512 $FILE | sed 's/([^)]*)//g' >> $DGST 23 | uploadfile $FILE 24 | uploadfile $DGST 25 | } 26 | 27 | pushd `pwd` &>/dev/null 28 | 29 | go get github.com/mitchellh/gox 30 | 31 | gox -output="result/mysqldump_{{.OS}}_{{.Arch}}" -ldflags="-s -w" .. 32 | 33 | cd result 34 | 35 | UPLOAD_ITEM=($(ls -l|awk '{print $9}'|xargs -r)) 36 | 37 | for ITEM in ${UPLOAD_ITEM[@]} 38 | do 39 | upload $ITEM 40 | done 41 | 42 | echo "" 43 | echo "upload completed!" 44 | 45 | popd &>/dev/null 46 | 47 | rm -rf result -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # mysqldump 2 | [![Go Report Card](https://goreportcard.com/badge/github.com/Jrohy/mysqldump)](https://goreportcard.com/report/github.com/Jrohy/mysqldump) 3 | [![Downloads](https://img.shields.io/github/downloads/Jrohy/mysqldump/total.svg)](https://img.shields.io/github/downloads/Jrohy/mysqldump/total.svg) 4 | 5 | go语言版mysqldump, goroutine并发导sql, 比navicat等工具导出sql快！ 6 | 7 | 支持 **MySQL (4.1+), MariaDB** 8 | 9 | 此项目为: https://github.com/xelabs/go-mydumper 项目的修改优化版 10 | 11 | 如下变更: 12 | - 增加函数,存储过程,视图的导入导出 13 | - 加入mysql source组合源命令(-m), 传参 -m user:pass@host:port, 简化传参 14 | - 加入排除指定table数据导出sql 命令(-exclude) 15 | - 优化日志格式和运行时间的显示 16 | - 合并导入和导出sql功能到同一个文件(-i/-o来分区) 17 | - 提供所有平台的release编译文件 18 | - 访问数据库使用框架xorm, 使其支持MySQL8和MariaDB 19 | 20 | ## 命令行 21 | ``` 22 | ./mysqldump -h [HOST] -P [PORT] -u [USER] -p [PASSWORD] -db [DATABASE] -o [OUTDIR] -i [INDIR] -m [MYSQL_SOURCE] -exclude [EXCLUDE_TABLE] 23 | -h string 数据库连接地址 24 | -P int 数据库连接端口(不传则默认3306) 25 | -u string 连接用户名 26 | -p string 连接密码 27 | -m string 数据库连接信息, 格式 user:pass@host:port(此命令用来简化连接数据库传参信息) 28 | -db string 指定的数据库名, 导出sql模式必要, 导入sql模式可选,导入模式时为指定要导入的数据库名(不一定和原来导出的数据库名一致) 29 | -o string 导出数据库到指定的目录路径, 此命令存在则指定为导出sql模式 30 | -i string 指定要导入的sql所在目录路径, 此命令存在则指定为导入sql模式 31 | -exclude string 指定要排除的table数据(只导表结构),多个排除的表用英文','隔开 32 | -t int 指定线程数(默认16) 33 | -s int insert语句的大小(单位byte, 默认1000000) 34 | ``` -------------------------------------------------------------------------------- /common/common.go: -------------------------------------------------------------------------------- 1 | package common 2 | 3 | import ( 4 | "io" 5 | "io/ioutil" 6 | "os" 7 | "reflect" 8 | "unsafe" 9 | ) 10 | 11 | // Args tuple. 12 | type Args struct { 13 | Database string 14 | Outdir string 15 | ExcludeTables string 16 | Threads int 17 | ChunksizeInMB int 18 | StmtSize int 19 | Allbytes uint64 20 | Allrows uint64 21 | 22 | // Interval in millisecond. 23 | IntervalMs int 24 | } 25 | 26 | // BytesToString casts slice to string without copy 27 | func BytesToString(b []byte) (s string) { 28 | if len(b) == 0 { 29 | return "" 30 | } 31 | 32 | bh := (*reflect.SliceHeader)(unsafe.Pointer(&b)) 33 | sh := reflect.StringHeader{Data: bh.Data, Len: bh.Len} 34 | 35 | return *(*string)(unsafe.Pointer(&sh)) 36 | } 37 | 38 | // StringToBytes casts string to slice without copy 39 | func StringToBytes(s string) []byte { 40 | if len(s) == 0 { 41 | return []byte{} 42 | } 43 | 44 | sh := (*reflect.StringHeader)(unsafe.Pointer(&s)) 45 | bh := reflect.SliceHeader{Data: sh.Data, Len: sh.Len, Cap: sh.Len} 46 | 47 | return *(*[]byte)(unsafe.Pointer(&bh)) 48 | } 49 | 50 | // WriteFile used to write datas to file. 51 | func WriteFile(file string, data string) error { 52 | flag := os.O_RDWR | os.O_TRUNC 53 | if _, err := os.Stat(file); os.IsNotExist(err) { 54 | flag |= os.O_CREATE 55 | } 56 | f, err := os.OpenFile(file, flag, 0644) 57 | if err != nil { 58 | return err 59 | } 60 | defer f.Close() 61 | 62 | n, err := f.Write(StringToBytes(data)) 63 | if err != nil { 64 | return err 65 | } 66 | if n != len(data) { 67 | return io.ErrShortWrite 68 | } 69 | return nil 70 | } 71 | 72 | // ReadFile used to read datas from file. 73 | func ReadFile(file string) ([]byte, error) { 74 | return ioutil.ReadFile(file) 75 | } 76 | 77 | // AssertNil used to assert the error. 78 | func AssertNil(err error) { 79 | if err != nil { 80 | panic(err) 81 | } 82 | } 83 | 84 | func EscapeString(v string) string { 85 | var pos = 0 86 | if len(v) == 0 { 87 | return "" 88 | } 89 | buf := make([]byte, len(v[:])*2) 90 | for i := 0; i < len(v); i++ { 91 | c := v[i] 92 | switch c { 93 | case '\x00': 94 | buf[pos] = '\\' 95 | buf[pos+1] = '0' 96 | pos += 2 97 | case '\n': 98 | buf[pos] = '\\' 99 | buf[pos+1] = 'n' 100 | pos += 2 101 | case '\r': 102 | buf[pos] = '\\' 103 | buf[pos+1] = 'r' 104 | pos += 2 105 | case '\x1a': 106 | buf[pos] = '\\' 107 | buf[pos+1] = 'Z' 108 | pos += 2 109 | case '\'': 110 | buf[pos] = '\\' 111 | buf[pos+1] = '\'' 112 | pos += 2 113 | case '"': 114 | buf[pos] = '\\' 115 | buf[pos+1] = '"' 116 | pos += 2 117 | case '\\': 118 | buf[pos] = '\\' 119 | buf[pos+1] = '\\' 120 | pos += 2 121 | default: 122 | buf[pos] = c 123 | pos++ 124 | } 125 | } 126 | return string(buf[:pos]) 127 | } 128 | -------------------------------------------------------------------------------- /xlog/xlog.go: -------------------------------------------------------------------------------- 1 | package log 2 | 3 | import ( 4 | "fmt" 5 | "io" 6 | "log" 7 | "os" 8 | ) 9 | 10 | var ( 11 | defaultlog *Log 12 | ) 13 | 14 | // LogLevel used for log level. 15 | type LogLevel int 16 | 17 | const ( 18 | // DEBUG enum. 19 | DEBUG LogLevel = 1 << iota 20 | // INFO enum. 21 | INFO 22 | // WARNING enum. 23 | WARNING 24 | // ERROR enum. 25 | ERROR 26 | // FATAL enum. 27 | FATAL 28 | // PANIC enum. 29 | PANIC 30 | ) 31 | 32 | // LevelNames represents the string name of all levels. 33 | var LevelNames = [...]string{ 34 | DEBUG: "DEBUG", 35 | INFO: "INFO", 36 | WARNING: "WARNING", 37 | ERROR: "ERROR", 38 | FATAL: "FATAL", 39 | PANIC: "PANIC", 40 | } 41 | 42 | const ( 43 | // D_LOG_FLAGS is the default log flags. 44 | DLogFlags int = log.LstdFlags 45 | ) 46 | 47 | // Log struct. 48 | type Log struct { 49 | opts *Options 50 | *log.Logger 51 | } 52 | 53 | // NewStdLog creates a new std log. 54 | func NewStdLog(opts ...Option) *Log { 55 | return NewXLog(os.Stdout, opts...) 56 | } 57 | 58 | // NewXLog creates a new xlog. 59 | func NewXLog(w io.Writer, opts ...Option) *Log { 60 | options := newOptions(opts...) 61 | 62 | l := &Log{ 63 | opts: options, 64 | } 65 | l.Logger = log.New(w, l.opts.Name, DLogFlags) 66 | defaultlog = l 67 | return l 68 | } 69 | 70 | // NewLog creates the new log. 71 | func NewLog(w io.Writer, prefix string, flag int) *Log { 72 | l := &Log{} 73 | l.Logger = log.New(w, prefix, flag) 74 | return l 75 | } 76 | 77 | // GetLog returns Log. 78 | func GetLog() *Log { 79 | if defaultlog == nil { 80 | log := NewStdLog(Level(INFO)) 81 | defaultlog = log 82 | } 83 | return defaultlog 84 | } 85 | 86 | // SetLevel used to set the log level. 87 | func (t *Log) SetLevel(level string) { 88 | for i, v := range LevelNames { 89 | if level == v { 90 | t.opts.Level = LogLevel(i) 91 | return 92 | } 93 | } 94 | } 95 | 96 | // Debug used to log debug msg. 97 | func (t *Log) Debug(format string, v ...interface{}) { 98 | if DEBUG < t.opts.Level { 99 | return 100 | } 101 | t.log("[DEBUG] %s", fmt.Sprintf(format, v...)) 102 | } 103 | 104 | // Info used to log info msg. 105 | func (t *Log) Info(format string, v ...interface{}) { 106 | if INFO < t.opts.Level { 107 | return 108 | } 109 | t.log("[INFO] %s", fmt.Sprintf(format, v...)) 110 | } 111 | 112 | // Warning used to log warning msg. 113 | func (t *Log) Warning(format string, v ...interface{}) { 114 | if WARNING < t.opts.Level { 115 | return 116 | } 117 | t.log("[WARNING] %s", fmt.Sprintf(format, v...)) 118 | } 119 | 120 | // Error used to log error msg. 121 | func (t *Log) Error(format string, v ...interface{}) { 122 | if ERROR < t.opts.Level { 123 | return 124 | } 125 | t.log("[ERROR] %s", fmt.Sprintf(format, v...)) 126 | } 127 | 128 | // Fatal used to log faltal msg. 129 | func (t *Log) Fatal(format string, v ...interface{}) { 130 | if FATAL < t.opts.Level { 131 | return 132 | } 133 | t.log("[FATAL+EXIT] %s", fmt.Sprintf(format, v...)) 134 | os.Exit(1) 135 | } 136 | 137 | // Panic used to log panic msg. 138 | func (t *Log) Panic(format string, v ...interface{}) { 139 | if PANIC < t.opts.Level { 140 | return 141 | } 142 | msg := fmt.Sprintf("[PANIC] %s", fmt.Sprintf(format, v...)) 143 | t.log(msg) 144 | panic(msg) 145 | } 146 | 147 | // Close used to close the log. 148 | func (t *Log) Close() { 149 | // nothing 150 | } 151 | 152 | func (t *Log) log(format string, v ...interface{}) { 153 | _ = t.Output(3, fmt.Sprintf(format, v...)+"\n") 154 | } 155 | -------------------------------------------------------------------------------- /loader.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "github.com/go-xorm/xorm" 6 | "os" 7 | "path/filepath" 8 | "strings" 9 | "sync" 10 | "sync/atomic" 11 | "time" 12 | 13 | "mysqldump/common" 14 | xlog "mysqldump/xlog" 15 | ) 16 | 17 | // Files tuple. 18 | type Files struct { 19 | procedures []string 20 | functions []string 21 | tables []string 22 | views []string 23 | datas []string 24 | } 25 | 26 | var ( 27 | procedureSuffix = "-procedure.sql" 28 | functionSuffix = "-function.sql" 29 | tableSuffix = "-table.sql" 30 | viewSuffix = "-view.sql" 31 | dataSuffix = ".sql" 32 | ) 33 | 34 | func loadFiles(log *xlog.Log, dir string) *Files { 35 | files := &Files{} 36 | if err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error { 37 | if err != nil { 38 | log.Panicf("loader.file.walk.error:%+v", err) 39 | } 40 | 41 | if !info.IsDir() { 42 | switch { 43 | case strings.HasSuffix(path, tableSuffix): 44 | files.tables = append(files.tables, path) 45 | case strings.HasSuffix(path, functionSuffix): 46 | files.functions = append(files.functions, path) 47 | case strings.HasSuffix(path, procedureSuffix): 48 | files.procedures = append(files.procedures, path) 49 | case strings.HasSuffix(path, viewSuffix): 50 | files.views = append(files.views, path) 51 | default: 52 | if strings.HasSuffix(path, dataSuffix) { 53 | files.datas = append(files.datas, path) 54 | } 55 | } 56 | } 57 | return nil 58 | }); err != nil { 59 | log.Panicf("loader.file.walk.error:%+v", err) 60 | } 61 | return files 62 | } 63 | 64 | func restoreSchema(log *xlog.Log, engine *xorm.Engine, schemas []string, key string) { 65 | for _, schema := range schemas { 66 | name := strings.TrimSuffix(filepath.Base(schema), fmt.Sprintf("-%s.sql", key)) 67 | dropQuery := fmt.Sprintf("DROP %s IF EXISTS %s", strings.ToUpper(key), name) 68 | _, err := engine.DB().Exec(dropQuery) 69 | common.AssertNil(err) 70 | 71 | data, err := common.ReadFile(schema) 72 | common.AssertNil(err) 73 | query := common.BytesToString(data) 74 | _, err = engine.DB().Exec(query) 75 | common.AssertNil(err) 76 | log.Info("restoring.schema.%s[%s]", key, name) 77 | } 78 | } 79 | 80 | func restoreData(log *xlog.Log, table string, engine *xorm.Engine) int { 81 | part := "0" 82 | base := filepath.Base(table) 83 | name := strings.TrimSuffix(base, dataSuffix) 84 | splits := strings.Split(name, ".") 85 | tb := splits[0] 86 | if len(splits) > 1 { 87 | part = splits[1] 88 | } 89 | 90 | log.Info("restoring.tables[%s].parts[%s]", tb, part) 91 | 92 | bytes, err := common.ReadFile(table) 93 | common.AssertNil(err) 94 | sqlStr := common.BytesToString(bytes) 95 | sqls := strings.Split(sqlStr, ";\n") 96 | for _, sql := range sqls { 97 | if sql != "" { 98 | _, _ = engine.DB().Exec("SET FOREIGN_KEY_CHECKS=0") 99 | _, err = engine.DB().Exec(sql) 100 | common.AssertNil(err) 101 | } 102 | } 103 | log.Info("restoring.tables[%s].parts[%s].done...", tb, part) 104 | return len(bytes) 105 | } 106 | 107 | // Loader used to start the loader worker. 108 | func Loader(log *xlog.Log, args *common.Args, engine *xorm.Engine) { 109 | t := time.Now() 110 | files := loadFiles(log, args.Outdir) 111 | _, _ = engine.DB().Exec("SET FOREIGN_KEY_CHECKS=0") 112 | go restoreSchema(log, engine, files.functions, "function") 113 | go restoreSchema(log, engine, files.procedures, "procedure") 114 | restoreSchema(log, engine, files.tables, "table") 115 | restoreSchema(log, engine, files.views, "view") 116 | 117 | var wg sync.WaitGroup 118 | 119 | var bytes uint64 120 | for _, table := range files.datas { 121 | wg.Add(1) 122 | go func(engine *xorm.Engine, table string) { 123 | defer func() { 124 | wg.Done() 125 | }() 126 | r := restoreData(log, table, engine) 127 | atomic.AddUint64(&bytes, uint64(r)) 128 | }(engine, table) 129 | } 130 | 131 | tick := time.NewTicker(time.Millisecond * time.Duration(args.IntervalMs)) 132 | defer tick.Stop() 133 | go func() { 134 | for range tick.C { 135 | diff := time.Since(t).Seconds() 136 | bytes := float64(atomic.LoadUint64(&bytes) / 1024 / 1024) 137 | rates := bytes / diff 138 | log.Info("restoring.allbytes[%vMB].time[%.2fsec].rates[%.2fMB/sec]...", bytes, diff, rates) 139 | } 140 | }() 141 | 142 | wg.Wait() 143 | elapsedStr, elapsed := time.Since(t).String(), time.Since(t).Seconds() 144 | log.Info("restoring.all.done.cost[%s].allbytes[%.2fMB].rate[%.2fMB/s]", elapsedStr, float64(bytes/1024/1024), float64(bytes/1024/1024)/elapsed) 145 | } 146 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "flag" 5 | "fmt" 6 | _ "github.com/go-sql-driver/mysql" 7 | "github.com/go-xorm/xorm" 8 | "mysqldump/common" 9 | xlog "mysqldump/xlog" 10 | "os" 11 | "regexp" 12 | "strconv" 13 | "strings" 14 | ) 15 | 16 | const Pattern = `\w+:\w+@[\w.]+:\d{0,5}$` 17 | 18 | var ( 19 | engine *xorm.Engine 20 | flagChunksize, flagThreads, flagPort, flagStmtSize int 21 | flagUser, flagPasswd, flagHost, flagSource, flagDb, flagOutputDir, flagInputDir, flagExcludeTable string 22 | 23 | log = xlog.NewStdLog(xlog.Level(xlog.INFO)) 24 | ) 25 | 26 | func init() { 27 | flag.StringVar(&flagUser, "u", "", "Username with privileges to run the dump") 28 | flag.StringVar(&flagPasswd, "p", "", "User password") 29 | flag.StringVar(&flagHost, "h", "", "The host to connect to") 30 | flag.IntVar(&flagPort, "P", 3306, "TCP/IP port to connect to") 31 | flag.StringVar(&flagDb, "db", "", "Database to dump or database to import") 32 | flag.StringVar(&flagOutputDir, "o", "", "Directory to output files to") 33 | flag.StringVar(&flagInputDir, "i", "", "Directory of the dump to import") 34 | flag.IntVar(&flagChunksize, "F", 128, "Split tables into chunks of this output file size. This value is in MB") 35 | flag.IntVar(&flagThreads, "t", 16, "Number of threads to use") 36 | flag.IntVar(&flagStmtSize, "s", 1000000, "Attempted size of INSERT statement in bytes") 37 | flag.StringVar(&flagSource, "m", "", "Mysql source info in one string, format: user:password@host:port") 38 | flag.StringVar(&flagExcludeTable, "exclude", "", "Do not dump the specified table data, use ',' to split multiple table") 39 | flag.Usage = usage 40 | } 41 | 42 | func usage() { 43 | fmt.Println("Usage: " + os.Args[0] + " -h [HOST] -P [PORT] -u [USER] -p [PASSWORD] -db [DATABASE] -o [OUTDIR] -i [INDIR] -m [MYSQL_SOURCE] -exclude [EXCLUDE_TABLE]") 44 | flag.PrintDefaults() 45 | os.Exit(0) 46 | } 47 | 48 | func splitSource(input string) (string, string, string, int) { 49 | sourceSlice := strings.Split(input, "@") 50 | userSlice := strings.Split(sourceSlice[0], ":") 51 | addressSlice := strings.Split(sourceSlice[1], ":") 52 | port, _ := strconv.Atoi(addressSlice[1]) 53 | return userSlice[0], userSlice[1], addressSlice[0], port 54 | } 55 | 56 | func createDatabase(path string) { 57 | if flagDb == "" { 58 | data, err := common.ReadFile(path + "/dbname") 59 | common.AssertNil(err) 60 | flagDb = common.BytesToString(data) 61 | } 62 | engine, _ = xorm.NewEngine("mysql", fmt.Sprintf("%s:%s@tcp(%s:%d)/", 63 | flagUser, flagPasswd, flagHost, flagPort)) 64 | _, err := engine.Exec(fmt.Sprintf("CREATE DATABASE IF NOT EXISTS `%s`;", flagDb)) 65 | common.AssertNil(err) 66 | log.Info("restoring.database[%s]", flagDb) 67 | } 68 | 69 | func generateArgs() *common.Args { 70 | var flagDir string 71 | 72 | if flagSource != "" { 73 | if check, _ := regexp.Match(Pattern, []byte(flagSource)); check { 74 | flagUser, flagPasswd, flagHost, flagPort = splitSource(flagSource) 75 | } else { 76 | fmt.Printf("%s can't match regex 'user:password@host:port'", flagSource) 77 | os.Exit(0) 78 | } 79 | } 80 | 81 | if flagHost == "" || flagUser == "" { 82 | usage() 83 | os.Exit(0) 84 | } 85 | 86 | if flagInputDir != "" && flagOutputDir != "" { 87 | fmt.Println("can't use '-i' and '-o' flag at the same time!") 88 | os.Exit(0) 89 | } else if flagInputDir == "" && flagOutputDir == "" { 90 | fmt.Println("must have flag '-i' or '-o'!") 91 | os.Exit(0) 92 | } 93 | 94 | if flagOutputDir != "" { 95 | if flagDb == "" { 96 | fmt.Println("must have flag '-db' to special database to dump ") 97 | os.Exit(0) 98 | } 99 | if _, err := os.Stat(flagOutputDir); os.IsNotExist(err) { 100 | x := os.MkdirAll(flagOutputDir, 0777) 101 | common.AssertNil(x) 102 | } 103 | flagDir = flagOutputDir 104 | } else { 105 | flagDir = flagInputDir 106 | createDatabase(flagDir) 107 | } 108 | 109 | args := &common.Args{ 110 | Database: flagDb, 111 | Outdir: flagDir, 112 | ChunksizeInMB: flagChunksize, 113 | Threads: flagThreads, 114 | StmtSize: flagStmtSize, 115 | IntervalMs: 10 * 1000, 116 | ExcludeTables: flagExcludeTable, 117 | } 118 | 119 | return args 120 | } 121 | 122 | func main() { 123 | flag.Parse() 124 | args := generateArgs() 125 | engine, _ = xorm.NewEngine("mysql", fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8", 126 | flagUser, flagPasswd, flagHost, flagPort, flagDb)) 127 | if flagOutputDir != "" { 128 | Dumper(log, args, engine) 129 | } else { 130 | Loader(log, args, engine) 131 | } 132 | } 133 | -------------------------------------------------------------------------------- /dumper.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "github.com/go-xorm/xorm" 6 | "reflect" 7 | "strconv" 8 | "strings" 9 | "sync" 10 | "sync/atomic" 11 | "time" 12 | "xorm.io/core" 13 | 14 | "mysqldump/common" 15 | xlog "mysqldump/xlog" 16 | ) 17 | 18 | func writeDBName(args *common.Args) { 19 | file := fmt.Sprintf("%s/dbname", args.Outdir) 20 | _ = common.WriteFile(file, args.Database) 21 | } 22 | 23 | func dumpViewSchema(log *xlog.Log, engine *xorm.Engine, args *common.Args) { 24 | qr, err := engine.QueryString(fmt.Sprintf("SHOW TABLE STATUS FROM %s WHERE Comment='view';", args.Database)) 25 | common.AssertNil(err) 26 | 27 | for _, t := range qr { 28 | viewName := t["Name"] 29 | create, err := engine.QueryString(fmt.Sprintf("SHOW CREATE TABLE `%s`.`%s`", args.Database, viewName)) 30 | common.AssertNil(err) 31 | 32 | schema := create[0]["Create View"] + ";\n" 33 | file := fmt.Sprintf("%s/%s-view.sql", args.Outdir, viewName) 34 | _ = common.WriteFile(file, schema) 35 | log.Info("dumping.view[%s.%s].schema...", args.Database, viewName) 36 | } 37 | } 38 | 39 | func dumpRoutineSchema(log *xlog.Log, engine *xorm.Engine, args *common.Args, routineType string) { 40 | qr, err := engine.QueryString(fmt.Sprintf("SELECT ROUTINE_NAME FROM information_schema.ROUTINES WHERE ROUTINE_TYPE = '%s' AND ROUTINE_SCHEMA = '%s'", routineType, args.Database)) 41 | common.AssertNil(err) 42 | 43 | for _, t := range qr { 44 | routineName := t["ROUTINE_NAME"] 45 | create, err := engine.QueryString(fmt.Sprintf("SHOW CREATE %s `%s`.`%s`", routineType, args.Database, routineName)) 46 | common.AssertNil(err) 47 | 48 | schema := create[0][fmt.Sprintf("Create %s", strings.Title(strings.ToLower(routineType)))] + ";\n" 49 | file := fmt.Sprintf("%s/%s-%s.sql", args.Outdir, routineName, strings.ToLower(routineType)) 50 | _ = common.WriteFile(file, schema) 51 | log.Info("dumping.routine[%s.%s].schema...", args.Database, routineName) 52 | } 53 | } 54 | 55 | func dumpTableSchema(log *xlog.Log, engine *xorm.Engine, args *common.Args, tableName string) { 56 | qr, err := engine.QueryString(fmt.Sprintf("SHOW CREATE TABLE `%s`.`%s`", args.Database, tableName)) 57 | common.AssertNil(err) 58 | file := fmt.Sprintf("%s/%s-table.sql", args.Outdir, tableName) 59 | _ = common.WriteFile(file, qr[0]["Create Table"]+";\n") 60 | log.Info("dumping.table[%s.%s].schema...", args.Database, tableName) 61 | } 62 | 63 | func dumpTable(log *xlog.Log, engine *xorm.Engine, args *common.Args, table *core.Table) { 64 | var allBytes uint64 65 | var allRows uint64 66 | 67 | cursor, err := engine.DB().Query(fmt.Sprintf("SELECT /*backup*/ * FROM `%s`.`%s`", args.Database, table.Name)) 68 | common.AssertNil(err) 69 | 70 | cols := table.ColumnsSeq() 71 | dialect := engine.Dialect() 72 | destColNames := dialect.Quote(strings.Join(cols, dialect.Quote(", "))) 73 | 74 | fileNo := 1 75 | stmtsize := 0 76 | chunkbytes := 0 77 | rows := make([]string, 0, 256) 78 | inserts := make([]string, 0, 256) 79 | for cursor.Next() { 80 | dest := make([]interface{}, len(cols)) 81 | err = cursor.ScanSlice(&dest) 82 | common.AssertNil(err) 83 | 84 | var temp string 85 | for i, d := range dest { 86 | col := table.GetColumn(cols[i]) 87 | 88 | if d == nil { 89 | temp += ", NULL" 90 | } else if col.SQLType.IsText() || col.SQLType.IsTime() { 91 | var v = fmt.Sprintf("%s", d) 92 | if strings.HasSuffix(v, " +0000 UTC") { 93 | temp += fmt.Sprintf(", '%s'", v[0:len(v)-len(" +0000 UTC")]) 94 | } else { 95 | temp += ", '" + common.EscapeString(v) + "'" 96 | } 97 | } else if col.SQLType.IsBlob() { 98 | if reflect.TypeOf(d).Kind() == reflect.Slice { 99 | temp += fmt.Sprintf(", %s", dialect.FormatBytes(d.([]byte))) 100 | } else if reflect.TypeOf(d).Kind() == reflect.String { 101 | temp += fmt.Sprintf(", '%s'", d.(string)) 102 | } 103 | } else if col.SQLType.IsNumeric() { 104 | switch reflect.TypeOf(d).Kind() { 105 | case reflect.Slice: 106 | if col.SQLType.Name == core.Bool { 107 | temp += fmt.Sprintf(", %v", strconv.FormatBool(d.([]byte)[0] != byte('0'))) 108 | } else { 109 | temp += fmt.Sprintf(", %s", string(d.([]byte))) 110 | } 111 | case reflect.Int16, reflect.Int8, reflect.Int32, reflect.Int64, reflect.Int: 112 | if col.SQLType.Name == core.Bool { 113 | temp += fmt.Sprintf(", %v", strconv.FormatBool(reflect.ValueOf(d).Int() > 0)) 114 | } else { 115 | temp += fmt.Sprintf(", %v", d) 116 | } 117 | case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: 118 | if col.SQLType.Name == core.Bool { 119 | temp += fmt.Sprintf(", %v", strconv.FormatBool(reflect.ValueOf(d).Uint() > 0)) 120 | } else { 121 | temp += fmt.Sprintf(", %v", d) 122 | } 123 | default: 124 | temp += fmt.Sprintf(", %v", d) 125 | } 126 | } else { 127 | s := fmt.Sprintf("%v", d) 128 | if strings.Contains(s, ":") || strings.Contains(s, "-") { 129 | if strings.HasSuffix(s, " +0000 UTC") { 130 | temp += fmt.Sprintf(", '%s'", s[0:len(s)-len(" +0000 UTC")]) 131 | } else { 132 | temp += fmt.Sprintf(", '%s'", s) 133 | } 134 | } else { 135 | temp += fmt.Sprintf(", %s", s) 136 | } 137 | } 138 | } 139 | r := "(" + temp[2:] + ")" 140 | rows = append(rows, r) 141 | 142 | allRows++ 143 | stmtsize += len(r) 144 | chunkbytes += len(r) 145 | allBytes += uint64(len(r)) 146 | atomic.AddUint64(&args.Allbytes, uint64(len(r))) 147 | atomic.AddUint64(&args.Allrows, 1) 148 | 149 | if stmtsize >= args.StmtSize { 150 | insertone := fmt.Sprintf("INSERT INTO `%s`(%s) VALUES\n%s", table.Name, destColNames, strings.Join(rows, ",\n")) 151 | inserts = append(inserts, insertone) 152 | rows = rows[:0] 153 | stmtsize = 0 154 | } 155 | 156 | if (chunkbytes / 1024 / 1024) >= args.ChunksizeInMB { 157 | query := strings.Join(inserts, ";\n") + ";\n" 158 | file := fmt.Sprintf("%s/%s.%05d.sql", args.Outdir, table.Name, fileNo) 159 | _ = common.WriteFile(file, query) 160 | 161 | log.Info("dumping.table[%s.%s].rows[%v].bytes[%vMB].part[%v]", args.Database, table.Name, allRows, allBytes/1024/1024, fileNo) 162 | inserts = inserts[:0] 163 | chunkbytes = 0 164 | fileNo++ 165 | } 166 | } 167 | if chunkbytes > 0 { 168 | if len(rows) > 0 { 169 | insertone := fmt.Sprintf("INSERT INTO `%s`(%s) VALUES\n%s", table.Name, destColNames, strings.Join(rows, ",\n")) 170 | inserts = append(inserts, insertone) 171 | } 172 | 173 | query := strings.Join(inserts, ";\n") + ";\n" 174 | file := fmt.Sprintf("%s/%s.%05d.sql", args.Outdir, table.Name, fileNo) 175 | _ = common.WriteFile(file, query) 176 | } 177 | err = cursor.Close() 178 | common.AssertNil(err) 179 | 180 | log.Info("dumping.table[%s.%s].done.allrows[%v].allbytes[%vMB]...", args.Database, table.Name, allRows, allBytes/1024/1024) 181 | } 182 | 183 | // Dumper used to start the dumper worker. 184 | func Dumper(log *xlog.Log, args *common.Args, engine *xorm.Engine) { 185 | 186 | var wg sync.WaitGroup 187 | t := time.Now() 188 | 189 | tables, err := engine.DBMetas() 190 | common.AssertNil(err) 191 | 192 | //databaseName 193 | go writeDBName(args) 194 | //function 195 | go dumpRoutineSchema(log, engine, args, "FUNCTION") 196 | //procedure 197 | go dumpRoutineSchema(log, engine, args, "PROCEDURE") 198 | //view 199 | go dumpViewSchema(log, engine, args) 200 | 201 | for _, table := range tables { 202 | dumpTableSchema(log, engine, args, table.Name) 203 | 204 | wg.Add(1) 205 | go func(engine *xorm.Engine, table *core.Table) { 206 | defer func() { 207 | wg.Done() 208 | }() 209 | // excludeTable can't dump data 210 | if !strings.Contains(args.ExcludeTables, table.Name) { 211 | log.Info("dumping.table[%s.%s].datas...", args.Database, table.Name) 212 | dumpTable(log, engine, args, table) 213 | log.Info("dumping.table[%s.%s].datas.done...", args.Database, table.Name) 214 | } 215 | }(engine, table) 216 | } 217 | 218 | tick := time.NewTicker(time.Millisecond * time.Duration(args.IntervalMs)) 219 | defer tick.Stop() 220 | go func() { 221 | for range tick.C { 222 | diff := time.Since(t).Seconds() 223 | allbytesMB := float64(atomic.LoadUint64(&args.Allbytes) / 1024 / 1024) 224 | allrows := atomic.LoadUint64(&args.Allrows) 225 | rates := allbytesMB / diff 226 | log.Info("dumping.allbytes[%vMB].allrows[%v].time[%.2fsec].rates[%.2fMB/sec]...", allbytesMB, allrows, diff, rates) 227 | } 228 | }() 229 | wg.Wait() 230 | elapsedStr, elapsed := time.Since(t).String(), time.Since(t).Seconds() 231 | log.Info("dumping.all.done.cost[%s].allrows[%v].allbytes[%v].rate[%.2fMB/s]", elapsedStr, args.Allrows, args.Allbytes, float64(args.Allbytes/1024/1024)/elapsed) 232 | } 233 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= 2 | cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= 3 | cloud.google.com/go v0.37.4 h1:glPeL3BQJsbF6aIIYfZizMwc5LTYz250bDMjttbBGAU= 4 | cloud.google.com/go v0.37.4/go.mod h1:NHPJ89PdicEuT9hdPXMROBD91xc5uRDxsMtSB16k7hw= 5 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 6 | github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo= 7 | github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI= 8 | github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= 9 | 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h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk= 97 | golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= 98 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 99 | golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c h1:Vj5n4GlwjmQteupaxJ9+0FNOmBrHfq7vN4btdGoDZgI= 100 | golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 101 | golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= 102 | golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= 103 | golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU= 104 | golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= 105 | golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 106 | golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 107 | golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 108 | golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 109 | golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 110 | golang.org/x/net v0.0.0-20190125091013-d26f9f9a57f3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 111 | golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= 112 | golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= 113 | golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= 114 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------