示例#1
0
文件: migrate.go 项目: yannh/migrate
// Reset runs the down and up migration function
func Reset(pipe chan interface{}, url, migrationsPath string) {
	pipe1 := pipep.New()
	go Down(pipe1, url, migrationsPath)
	if ok := pipep.WaitAndRedirect(pipe1, pipe, handleInterrupts()); !ok {
		go pipep.Close(pipe, nil)
		return
	} else {
		go Up(pipe, url, migrationsPath)
	}
}
示例#2
0
文件: migrate.go 项目: yannh/migrate
// Down rolls back all migrations
func Down(pipe chan interface{}, url, migrationsPath string) {
	d, files, version, err := initDriverAndReadMigrationFilesAndGetVersion(url, migrationsPath)
	if err != nil {
		go pipep.Close(pipe, err)
		return
	}

	applyMigrationFiles, err := files.ToFirstFrom(version)
	if err != nil {
		if err2 := d.Close(); err2 != nil {
			pipe <- err2
		}
		go pipep.Close(pipe, err)
		return
	}

	if len(applyMigrationFiles) > 0 {
		for _, f := range applyMigrationFiles {
			pipe1 := pipep.New()
			go d.Migrate(f, pipe1)
			if ok := pipep.WaitAndRedirect(pipe1, pipe, handleInterrupts()); !ok {
				break
			}
		}
		if err2 := d.Close(); err2 != nil {
			pipe <- err2
		}
		go pipep.Close(pipe, nil)
		return
	} else {
		if err2 := d.Close(); err2 != nil {
			pipe <- err2
		}
		go pipep.Close(pipe, nil)
		return
	}
}
示例#3
0
文件: main.go 项目: yannh/migrate
func main() {
	flag.Parse()
	command := flag.Arg(0)

	if *version {
		fmt.Println(Version)
		os.Exit(0)
	}

	if *migrationsPath == "" {
		*migrationsPath, _ = os.Getwd()
	}

	switch command {
	case "create":
		verifyMigrationsPath(*migrationsPath)
		name := flag.Arg(1)
		if name == "" {
			fmt.Println("Please specify name.")
			os.Exit(1)
		}

		migrationFile, err := migrate.Create(*url, *migrationsPath, name)
		if err != nil {
			fmt.Println(err)
			os.Exit(1)
		}

		fmt.Printf("Version %v migration files created in %v:\n", migrationFile.Version, *migrationsPath)
		fmt.Println(migrationFile.UpFile.FileName)
		fmt.Println(migrationFile.DownFile.FileName)

	case "migrate":
		verifyMigrationsPath(*migrationsPath)
		relativeN := flag.Arg(1)
		relativeNInt, err := strconv.Atoi(relativeN)
		if err != nil {
			fmt.Println("Unable to parse param <n>.")
			os.Exit(1)
		}
		timerStart = time.Now()
		pipe := pipep.New()
		go migrate.Migrate(pipe, *url, *migrationsPath, relativeNInt)
		ok := writePipe(pipe)
		printTimer()
		if !ok {
			os.Exit(1)
		}

	case "goto":
		verifyMigrationsPath(*migrationsPath)
		toVersion := flag.Arg(1)
		toVersionInt, err := strconv.Atoi(toVersion)
		if err != nil || toVersionInt < 0 {
			fmt.Println("Unable to parse param <v>.")
			os.Exit(1)
		}

		currentVersion, err := migrate.Version(*url, *migrationsPath)
		if err != nil {
			fmt.Println(err)
			os.Exit(1)
		}

		relativeNInt := toVersionInt - int(currentVersion)

		timerStart = time.Now()
		pipe := pipep.New()
		go migrate.Migrate(pipe, *url, *migrationsPath, relativeNInt)
		ok := writePipe(pipe)
		printTimer()
		if !ok {
			os.Exit(1)
		}

	case "up":
		verifyMigrationsPath(*migrationsPath)
		timerStart = time.Now()
		pipe := pipep.New()
		go migrate.Up(pipe, *url, *migrationsPath)
		ok := writePipe(pipe)
		printTimer()
		if !ok {
			os.Exit(1)
		}

	case "down":
		verifyMigrationsPath(*migrationsPath)
		timerStart = time.Now()
		pipe := pipep.New()
		go migrate.Down(pipe, *url, *migrationsPath)
		ok := writePipe(pipe)
		printTimer()
		if !ok {
			os.Exit(1)
		}

	case "redo":
		verifyMigrationsPath(*migrationsPath)
		timerStart = time.Now()
		pipe := pipep.New()
		go migrate.Redo(pipe, *url, *migrationsPath)
		ok := writePipe(pipe)
		printTimer()
		if !ok {
			os.Exit(1)
		}

	case "reset":
		verifyMigrationsPath(*migrationsPath)
		timerStart = time.Now()
		pipe := pipep.New()
		go migrate.Reset(pipe, *url, *migrationsPath)
		ok := writePipe(pipe)
		printTimer()
		if !ok {
			os.Exit(1)
		}

	case "version":
		verifyMigrationsPath(*migrationsPath)
		version, err := migrate.Version(*url, *migrationsPath)
		if err != nil {
			fmt.Println(err)
			os.Exit(1)
		}
		fmt.Println(version)

	default:
		fallthrough
	case "help":
		helpCmd()
	}
}
示例#4
0
文件: migrate.go 项目: yannh/migrate
// UpSync is synchronous version of Up
func UpSync(url, migrationsPath string) (err []error, ok bool) {
	pipe := pipep.New()
	go Up(pipe, url, migrationsPath)
	err = pipep.ReadErrors(pipe)
	return err, len(err) == 0
}
示例#5
0
文件: migrate.go 项目: yannh/migrate
// NewPipe is a convenience function for pipe.New().
// This is helpful if the user just wants to import this package and nothing else.
func NewPipe() chan interface{} {
	return pipep.New()
}
示例#6
0
文件: migrate.go 项目: yannh/migrate
// MigrateSync is synchronous version of Migrate
func MigrateSync(url, migrationsPath string, relativeN int) (err []error, ok bool) {
	pipe := pipep.New()
	go Migrate(pipe, url, migrationsPath, relativeN)
	err = pipep.ReadErrors(pipe)
	return err, len(err) == 0
}