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Code Issues Releases Wiki Activity

Fix S3 legacy layout migration

This commit is contained in:
Michael Eischer 2022-05-01 14:52:00 +02:00
parent 04e49924fb
commit 5a6f2f9fa0
1 changed files with 20 additions and 4 deletions
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24
internal/migrations/s3_layout.go
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@ -8,6 +8,7 @@ import (
"github.com/restic/restic/internal/backend"
"github.com/restic/restic/internal/backend/s3"
"github.com/restic/restic/internal/cache"
"github.com/restic/restic/internal/debug"
"github.com/restic/restic/internal/errors"
"github.com/restic/restic/internal/restic"
@ -21,10 +22,25 @@ func init() {
// "default" layout.
type S3Layout struct{}
func toS3Backend(repo restic.Repository) *s3.Backend {
b := repo.Backend()
// unwrap cache
if be, ok := b.(*cache.Backend); ok {
b = be.Backend
}
be, ok := b.(*s3.Backend)
if !ok {
debug.Log("backend is not s3")
return nil
}
return be
}
// Check tests whether the migration can be applied.
func (m *S3Layout) Check(ctx context.Context, repo restic.Repository) (bool, error) {
be, ok := repo.Backend().(*s3.Backend)
if !ok {
be := toS3Backend(repo)
if be == nil {
debug.Log("backend is not s3")
return false, nil
}
@ -75,8 +91,8 @@ func (m *S3Layout) moveFiles(ctx context.Context, be *s3.Backend, l backend.Layo
// Apply runs the migration.
func (m *S3Layout) Apply(ctx context.Context, repo restic.Repository) error {
be, ok := repo.Backend().(*s3.Backend)
if !ok {
be := toS3Backend(repo)
if be == nil {
debug.Log("backend is not s3")
return errors.New("backend is not s3")
}