snapshot of https://github.com/golang-migrate/migrate.git (master, 2026-09-15; blobs > 131072B omitted)

source/go_bindata/go-bindata.go

@@ -0,0 +1,118 @@
+package bindata
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+
+	"github.com/golang-migrate/migrate/v4/source"
+)
+
+type AssetFunc func(name string) ([]byte, error)
+
+func Resource(names []string, afn AssetFunc) *AssetSource {
+	return &AssetSource{
+		Names:     names,
+		AssetFunc: afn,
+	}
+}
+
+type AssetSource struct {
+	Names     []string
+	AssetFunc AssetFunc
+}
+
+func init() {
+	source.Register("go-bindata", &Bindata{})
+}
+
+type Bindata struct {
+	path        string
+	assetSource *AssetSource
+	migrations  *source.Migrations
+}
+
+func (b *Bindata) Open(url string) (source.Driver, error) {
+	return nil, fmt.Errorf("not yet implemented")
+}
+
+var (
+	ErrNoAssetSource = fmt.Errorf("expects *AssetSource")
+)
+
+func WithInstance(instance interface{}) (source.Driver, error) {
+	if _, ok := instance.(*AssetSource); !ok {
+		return nil, ErrNoAssetSource
+	}
+	as := instance.(*AssetSource)
+
+	bn := &Bindata{
+		path:        "<go-bindata>",
+		assetSource: as,
+		migrations:  source.NewMigrations(),
+	}
+
+	for _, fi := range as.Names {
+		m, err := source.DefaultParse(fi)
+		if err != nil {
+			continue // ignore files that we can't parse
+		}
+
+		if !bn.migrations.Append(m) {
+			return nil, fmt.Errorf("unable to parse file %v", fi)
+		}
+	}
+
+	return bn, nil
+}
+
+func (b *Bindata) Close() error {
+	return nil
+}
+
+func (b *Bindata) First() (version uint, err error) {
+	if v, ok := b.migrations.First(); !ok {
+		return 0, &os.PathError{Op: "first", Path: b.path, Err: os.ErrNotExist}
+	} else {
+		return v, nil
+	}
+}
+
+func (b *Bindata) Prev(version uint) (prevVersion uint, err error) {
+	if v, ok := b.migrations.Prev(version); !ok {
+		return 0, &os.PathError{Op: fmt.Sprintf("prev for version %v", version), Path: b.path, Err: os.ErrNotExist}
+	} else {
+		return v, nil
+	}
+}
+
+func (b *Bindata) Next(version uint) (nextVersion uint, err error) {
+	if v, ok := b.migrations.Next(version); !ok {
+		return 0, &os.PathError{Op: fmt.Sprintf("next for version %v", version), Path: b.path, Err: os.ErrNotExist}
+	} else {
+		return v, nil
+	}
+}
+
+func (b *Bindata) ReadUp(version uint) (r io.ReadCloser, identifier string, err error) {
+	if m, ok := b.migrations.Up(version); ok {
+		body, err := b.assetSource.AssetFunc(m.Raw)
+		if err != nil {
+			return nil, "", err
+		}
+		return io.NopCloser(bytes.NewReader(body)), m.Identifier, nil
+	}
+	return nil, "", &os.PathError{Op: fmt.Sprintf("read version %v", version), Path: b.path, Err: os.ErrNotExist}
+}
+
+func (b *Bindata) ReadDown(version uint) (r io.ReadCloser, identifier string, err error) {
+	if m, ok := b.migrations.Down(version); ok {
+		body, err := b.assetSource.AssetFunc(m.Raw)
+		if err != nil {
+			return nil, "", err
+		}
+		return io.NopCloser(bytes.NewReader(body)), m.Identifier, nil
+	}
+	return nil, "", &os.PathError{Op: fmt.Sprintf("read version %v", version), Path: b.path, Err: os.ErrNotExist}
+}