mirror of https://github.com/stashapp/stash.git
92 lines
2.0 KiB
Go
92 lines
2.0 KiB
Go
package database
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import (
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"bytes"
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"fmt"
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"github.com/gobuffalo/packr/v2"
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"github.com/golang-migrate/migrate/v4"
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"github.com/golang-migrate/migrate/v4/source"
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"io"
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"io/ioutil"
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"os"
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)
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type Packr2Source struct {
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Box *packr.Box
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Migrations *source.Migrations
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}
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func init() {
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source.Register("packr2", &Packr2Source{})
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}
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func WithInstance(instance *Packr2Source) (source.Driver, error) {
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for _, fi := range instance.Box.List() {
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m, err := source.DefaultParse(fi)
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if err != nil {
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continue // ignore files that we can't parse
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}
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if !instance.Migrations.Append(m) {
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return nil, fmt.Errorf("unable to parse file %v", fi)
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}
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}
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return instance, nil
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}
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func (s *Packr2Source) Open(url string) (source.Driver, error) {
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return nil, fmt.Errorf("not implemented")
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}
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func (s *Packr2Source) Close() error {
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s.Migrations = nil
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return nil
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}
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func (s *Packr2Source) First() (version uint, err error) {
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if v, ok := s.Migrations.First(); !ok {
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return 0, os.ErrNotExist
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} else {
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return v, nil
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}
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}
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func (s *Packr2Source) Prev(version uint) (prevVersion uint, err error) {
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if v, ok := s.Migrations.Prev(version); !ok {
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return 0, os.ErrNotExist
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} else {
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return v, nil
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}
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}
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func (s *Packr2Source) Next(version uint) (nextVersion uint, err error) {
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if v, ok := s.Migrations.Next(version); !ok {
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return 0, os.ErrNotExist
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} else {
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return v, nil
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}
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}
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func (s *Packr2Source) ReadUp(version uint) (r io.ReadCloser, identifier string, err error) {
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if migration, ok := s.Migrations.Up(version); !ok {
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return nil, "", os.ErrNotExist
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} else {
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b := s.Box.Bytes(migration.Raw)
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return ioutil.NopCloser(bytes.NewBuffer(b)),
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migration.Identifier,
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nil
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}
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}
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func (s *Packr2Source) ReadDown(version uint) (r io.ReadCloser, identifier string, err error) {
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if migration, ok := s.Migrations.Down(version); !ok {
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return nil, "", migrate.ErrNilVersion
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} else {
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b := s.Box.Bytes(migration.Raw)
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return ioutil.NopCloser(bytes.NewBuffer(b)),
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migration.Identifier,
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nil
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}
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}
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