chore: delete unused cache

internal/cache/cache.go

@@ -1,72 +0,0 @@
-package cache
-
-import (
-	"errors"
-	"fmt"
-
-	v1 "github.com/garethgeorge/backrest/gen/go/v1"
-	"github.com/garethgeorge/backrest/internal/oplog/serializationutil"
-	"go.etcd.io/bbolt"
-	"google.golang.org/protobuf/proto"
-)
-
-var (
-	bucketRepoStats = []byte("repo_stats")
-)
-
-var (
-	ErrNotFound = errors.New("not found")
-)
-
-type Cache struct {
-	db *bbolt.DB
-}
-
-func NewCache(databasePath string) (*Cache, error) {
-	db, err := bbolt.Open(databasePath, 0600, nil)
-	if err != nil {
-		return nil, fmt.Errorf("open database: %w", err)
-	}
-
-	if err := db.Update(func(tx *bbolt.Tx) error {
-		for _, bucket := range [][]byte{bucketRepoStats} {
-			_, err := tx.CreateBucketIfNotExists(bucket)
-			return err
-		}
-		return nil
-	}); err != nil {
-		return nil, fmt.Errorf("create bucket: %w", err)
-	}
-
-	return &Cache{db: db}, nil
-}
-
-func (c *Cache) Close() error {
-	return c.db.Close()
-}
-
-func (c *Cache) SetRepoStats(repoId string, stats *v1.RepoStats) error {
-	return c.db.Update(func(tx *bbolt.Tx) error {
-		b := tx.Bucket(bucketRepoStats)
-		statsBytes, err := proto.Marshal(stats)
-		if err != nil {
-			return fmt.Errorf("marshal stats: %w", err)
-		}
-		return b.Put(serializationutil.BytesToKey([]byte(repoId)), statsBytes)
-	})
-}
-
-func (c *Cache) GetRepoStats(repoId string) (*v1.RepoStats, error) {
-	var stats v1.RepoStats
-	if err := c.db.View(func(tx *bbolt.Tx) error {
-		b := tx.Bucket(bucketRepoStats)
-		statsBytes := b.Get(serializationutil.BytesToKey([]byte(repoId)))
-		if statsBytes == nil {
-			return ErrNotFound
-		}
-		return proto.Unmarshal(statsBytes, &stats)
-	}); err != nil {
-		return nil, err
-	}
-	return &stats, nil
-}