mirror of
https://github.com/hanzoai/migrate.git
synced 2026-09-30 22:55:10 +00:00
zeekayandHanzo Dev
85d7501b1f
go fix applied the modernizers. One rewrite it got wrong is corrected here: a reverse loop over runes became a range over slices.Backward that bound the index and the value to the SAME name, which does not compile and would have compared a rune to an index if it had. The value gets its own name. Co-authored-by: Hanzo Dev <[email protected]>
85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
package stub
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
|
|
"github.com/golang-migrate/migrate/v4/source"
|
|
)
|
|
|
|
func init() {
|
|
source.Register("stub", &Stub{})
|
|
}
|
|
|
|
type Config struct{}
|
|
|
|
// d, _ := source.Open("stub://")
|
|
// d.(*stub.Stub).Migrations =
|
|
|
|
type Stub struct {
|
|
Url string
|
|
Instance any
|
|
Migrations *source.Migrations
|
|
Config *Config
|
|
}
|
|
|
|
func (s *Stub) Open(url string) (source.Driver, error) {
|
|
return &Stub{
|
|
Url: url,
|
|
Migrations: source.NewMigrations(),
|
|
Config: &Config{},
|
|
}, nil
|
|
}
|
|
|
|
func WithInstance(instance any, config *Config) (source.Driver, error) {
|
|
return &Stub{
|
|
Instance: instance,
|
|
Migrations: source.NewMigrations(),
|
|
Config: config,
|
|
}, nil
|
|
}
|
|
|
|
func (s *Stub) Close() error {
|
|
return nil
|
|
}
|
|
|
|
func (s *Stub) First() (version uint, err error) {
|
|
if v, ok := s.Migrations.First(); !ok {
|
|
return 0, &os.PathError{Op: "first", Path: s.Url, Err: os.ErrNotExist} // TODO: s.Url can be empty when called with WithInstance
|
|
} else {
|
|
return v, nil
|
|
}
|
|
}
|
|
|
|
func (s *Stub) Prev(version uint) (prevVersion uint, err error) {
|
|
if v, ok := s.Migrations.Prev(version); !ok {
|
|
return 0, &os.PathError{Op: fmt.Sprintf("prev for version %v", version), Path: s.Url, Err: os.ErrNotExist}
|
|
} else {
|
|
return v, nil
|
|
}
|
|
}
|
|
|
|
func (s *Stub) Next(version uint) (nextVersion uint, err error) {
|
|
if v, ok := s.Migrations.Next(version); !ok {
|
|
return 0, &os.PathError{Op: fmt.Sprintf("next for version %v", version), Path: s.Url, Err: os.ErrNotExist}
|
|
} else {
|
|
return v, nil
|
|
}
|
|
}
|
|
|
|
func (s *Stub) ReadUp(version uint) (r io.ReadCloser, identifier string, err error) {
|
|
if m, ok := s.Migrations.Up(version); ok {
|
|
return io.NopCloser(bytes.NewBufferString(m.Identifier)), fmt.Sprintf("%v.up.stub", version), nil
|
|
}
|
|
return nil, "", &os.PathError{Op: fmt.Sprintf("read up version %v", version), Path: s.Url, Err: os.ErrNotExist}
|
|
}
|
|
|
|
func (s *Stub) ReadDown(version uint) (r io.ReadCloser, identifier string, err error) {
|
|
if m, ok := s.Migrations.Down(version); ok {
|
|
return io.NopCloser(bytes.NewBufferString(m.Identifier)), fmt.Sprintf("%v.down.stub", version), nil
|
|
}
|
|
return nil, "", &os.PathError{Op: fmt.Sprintf("read down version %v", version), Path: s.Url, Err: os.ErrNotExist}
|
|
}
|