mirror of https://github.com/octoleo/restic.git
53 lines
924 B
Go
53 lines
924 B
Go
package restic
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import (
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"context"
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"fmt"
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)
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type fileInfo struct {
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id ID
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size int64
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}
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type memorizedLister struct {
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fileInfos []fileInfo
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tpe FileType
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}
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func (m *memorizedLister) List(ctx context.Context, t FileType, fn func(ID, int64) error) error {
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if t != m.tpe {
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return fmt.Errorf("filetype mismatch, expected %s got %s", m.tpe, t)
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}
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for _, fi := range m.fileInfos {
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if ctx.Err() != nil {
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break
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}
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err := fn(fi.id, fi.size)
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if err != nil {
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return err
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}
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}
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return ctx.Err()
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}
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func MemorizeList(ctx context.Context, be Lister, t FileType) (Lister, error) {
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if _, ok := be.(*memorizedLister); ok {
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return be, nil
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}
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var fileInfos []fileInfo
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err := be.List(ctx, t, func(id ID, size int64) error {
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fileInfos = append(fileInfos, fileInfo{id, size})
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return nil
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})
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if err != nil {
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return nil, err
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}
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return &memorizedLister{
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fileInfos: fileInfos,
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tpe: t,
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}, nil
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}
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