/
repository.go
90 lines (75 loc) · 2.11 KB
/
repository.go
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package repo
import (
"context"
"fmt"
"time"
"github.com/kopia/repo/block"
"github.com/kopia/repo/manifest"
"github.com/kopia/repo/object"
"github.com/kopia/repo/storage"
)
// Repository represents storage where both content-addressable and user-addressable data is kept.
type Repository struct {
Blocks *block.Manager
Objects *object.Manager
Storage storage.Storage
Manifests *manifest.Manager
UniqueID []byte
ConfigFile string
CacheDirectory string
}
// Close closes the repository and releases all resources.
func (r *Repository) Close(ctx context.Context) error {
if err := r.Manifests.Flush(ctx); err != nil {
return fmt.Errorf("error flushing manifests: %v", err)
}
if err := r.Objects.Close(ctx); err != nil {
return fmt.Errorf("error closing objects: %v", err)
}
if err := r.Blocks.Flush(ctx); err != nil {
return fmt.Errorf("error closing blocks: %v", err)
}
if err := r.Storage.Close(ctx); err != nil {
return fmt.Errorf("error closing storage: %v", err)
}
return nil
}
// Flush waits for all in-flight writes to complete.
func (r *Repository) Flush(ctx context.Context) error {
if err := r.Manifests.Flush(ctx); err != nil {
return err
}
if err := r.Objects.Flush(ctx); err != nil {
return err
}
return r.Blocks.Flush(ctx)
}
// Refresh periodically makes external changes visible to repository.
func (r *Repository) Refresh(ctx context.Context) error {
updated, err := r.Blocks.Refresh(ctx)
if err != nil {
return fmt.Errorf("error refreshing block index: %v", err)
}
if !updated {
return nil
}
log.Debugf("block index refreshed")
if err := r.Manifests.Refresh(ctx); err != nil {
return fmt.Errorf("error reloading manifests: %v", err)
}
log.Debugf("manifests refreshed")
return nil
}
// RefreshPeriodically periodically refreshes the repository to reflect the changes made by other hosts.
func (r *Repository) RefreshPeriodically(ctx context.Context, interval time.Duration) {
for {
select {
case <-ctx.Done():
return
case <-time.After(interval):
if err := r.Refresh(ctx); err != nil {
log.Warningf("error refreshing repository: %v", err)
}
}
}
}