// 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)
}
}
// 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
}
}
// 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
}
// 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()
}
// 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
}