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index: Use interfaces instead of *repository.Repository

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This commit is contained in:
Alexander Neumann 2018-10-28 12:57:17 +01:00
parent 944b446ac0
commit c3de301fc8
1 changed files with 25 additions and 4 deletions
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29
internal/index/index.go
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@ -36,9 +36,19 @@ func newIndex() *Index {
const listPackWorkers = 10
// Lister lists files and their contents
type Lister interface {
// List runs fn for all files of type t in the repo.
List(ctx context.Context, t restic.FileType, fn func(restic.ID, int64) error) error
// ListPack returns the list of blobs saved in the pack id and the length
// of the file as stored in the backend.
ListPack(ctx context.Context, id restic.ID, size int64) ([]restic.Blob, int64, error)
}
// New creates a new index for repo from scratch. InvalidFiles contains all IDs
// of files that cannot be listed successfully.
func New(ctx context.Context, repo restic.Repository, ignorePacks restic.IDSet, p *restic.Progress) (idx *Index, invalidFiles restic.IDs, err error) {
func New(ctx context.Context, repo Lister, ignorePacks restic.IDSet, p *restic.Progress) (idx *Index, invalidFiles restic.IDs, err error) {
p.Start()
defer p.Done()
@ -158,7 +168,13 @@ type indexJSON struct {
Packs []packJSON `json:"packs"`
}
func loadIndexJSON(ctx context.Context, repo restic.Repository, id restic.ID) (*indexJSON, error) {
// ListLoader allows listing files and their content, in addition to loading and unmarshaling JSON files.
type ListLoader interface {
Lister
LoadJSONUnpacked(context.Context, restic.FileType, restic.ID, interface{}) error
}
func loadIndexJSON(ctx context.Context, repo ListLoader, id restic.ID) (*indexJSON, error) {
debug.Log("process index %v\n", id)
var idx indexJSON
@ -171,7 +187,7 @@ func loadIndexJSON(ctx context.Context, repo restic.Repository, id restic.ID) (*
}
// Load creates an index by loading all index files from the repo.
func Load(ctx context.Context, repo restic.Repository, p *restic.Progress) (*Index, error) {
func Load(ctx context.Context, repo ListLoader, p *restic.Progress) (*Index, error) {
debug.Log("loading indexes")
p.Start()
@ -328,8 +344,13 @@ func (idx *Index) FindBlob(h restic.BlobHandle) (result []Location, err error) {
const maxEntries = 3000
// Saver saves structures as JSON.
type Saver interface {
SaveJSONUnpacked(ctx context.Context, t restic.FileType, item interface{}) (restic.ID, error)
}
// Save writes the complete index to the repo.
func (idx *Index) Save(ctx context.Context, repo restic.Repository, supersedes restic.IDs) (restic.IDs, error) {
func (idx *Index) Save(ctx context.Context, repo Saver, supersedes restic.IDs) (restic.IDs, error) {
debug.Log("pack files: %d\n", len(idx.Packs))
var indexIDs []restic.ID