[chore/performance] simplify storage driver to use storage.Storage directly (#1576)

* simply use storage.Storage, removing wrapping KVStore as we don't need KV store locking functionality

Signed-off-by: kim <grufwub@gmail.com>

* fix missing unwrapped function

Signed-off-by: kim <grufwub@gmail.com>

* add code comment

Signed-off-by: kim <grufwub@gmail.com>

* linter, please take my offering in peace

Signed-off-by: kim <grufwub@gmail.com>

---------

Signed-off-by: kim <grufwub@gmail.com>

internal/api/client/media/mediacreate_test.go

@@ -136,15 +136,13 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessful() {
 	ctx.Set(oauth.SessionAuthorizedAccount, suite.testAccounts["local_account_1"])
 
 	// see what's in storage *before* the request
-	storageKeysBeforeRequest := []string{}
+	var storageKeysBeforeRequest []string
-	iter, err := suite.storage.KVStore.Iterator(context.Background(), nil)
+	if err := suite.storage.WalkKeys(ctx, func(ctx context.Context, key string) error {
-	if err != nil {
+		storageKeysBeforeRequest = append(storageKeysBeforeRequest, key)
+		return nil
+	}); err != nil {
 		panic(err)
 	}
-	for iter.Next() {
-		storageKeysBeforeRequest = append(storageKeysBeforeRequest, iter.Key())
-	}
-	iter.Release()
 
 	// create the request
 	buf, w, err := testrig.CreateMultipartFormData("file", "../../../../testrig/media/test-jpeg.jpg", map[string]string{
@@ -163,15 +161,13 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessful() {
 	suite.mediaModule.MediaCreatePOSTHandler(ctx)
 
 	// check what's in storage *after* the request
-	storageKeysAfterRequest := []string{}
+	var storageKeysAfterRequest []string
-	iter, err = suite.storage.KVStore.Iterator(context.Background(), nil)
+	if err := suite.storage.WalkKeys(ctx, func(ctx context.Context, key string) error {
-	if err != nil {
+		storageKeysAfterRequest = append(storageKeysAfterRequest, key)
+		return nil
+	}); err != nil {
 		panic(err)
 	}
-	for iter.Next() {
-		storageKeysAfterRequest = append(storageKeysAfterRequest, iter.Key())
-	}
-	iter.Release()
 
 	// check response
 	suite.EqualValues(http.StatusOK, recorder.Code)
@@ -225,15 +221,13 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessfulV2() {
 	ctx.Set(oauth.SessionAuthorizedAccount, suite.testAccounts["local_account_1"])
 
 	// see what's in storage *before* the request
-	storageKeysBeforeRequest := []string{}
+	var storageKeysBeforeRequest []string
-	iter, err := suite.storage.KVStore.Iterator(context.Background(), nil)
+	if err := suite.storage.WalkKeys(ctx, func(ctx context.Context, key string) error {
-	if err != nil {
+		storageKeysBeforeRequest = append(storageKeysBeforeRequest, key)
+		return nil
+	}); err != nil {
 		panic(err)
 	}
-	for iter.Next() {
-		storageKeysBeforeRequest = append(storageKeysBeforeRequest, iter.Key())
-	}
-	iter.Release()
 
 	// create the request
 	buf, w, err := testrig.CreateMultipartFormData("file", "../../../../testrig/media/test-jpeg.jpg", map[string]string{
@@ -252,15 +246,13 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessfulV2() {
 	suite.mediaModule.MediaCreatePOSTHandler(ctx)
 
 	// check what's in storage *after* the request
-	storageKeysAfterRequest := []string{}
+	var storageKeysAfterRequest []string
-	iter, err = suite.storage.KVStore.Iterator(context.Background(), nil)
+	if err := suite.storage.WalkKeys(ctx, func(ctx context.Context, key string) error {
-	if err != nil {
+		storageKeysAfterRequest = append(storageKeysAfterRequest, key)
+		return nil
+	}); err != nil {
 		panic(err)
 	}
-	for iter.Next() {
-		storageKeysAfterRequest = append(storageKeysAfterRequest, iter.Key())
-	}
-	iter.Release()
 
 	// check response
 	suite.EqualValues(http.StatusOK, recorder.Code)

internal/media/manager_test.go

@@ -28,7 +28,6 @@
 	"testing"
 	"time"
 
-	"codeberg.org/gruf/go-store/v2/kv"
 	"codeberg.org/gruf/go-store/v2/storage"
 	"github.com/stretchr/testify/suite"
 	gtsmodel "github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -1196,7 +1195,6 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessBlockingWithDiskStorage() {
 	defer state.Workers.Stop()
 
 	storage := &gtsstorage.Driver{
-		KVStore: kv.New(disk),
 		Storage: disk,
 	}
 	state.Storage = storage

internal/media/prune.go

@@ -154,55 +154,41 @@ func (m *manager) PruneUnusedRemote(ctx context.Context, dry bool) (int, error)
 }
 
 func (m *manager) PruneOrphaned(ctx context.Context, dry bool) (int, error) {
-	// keys in storage will look like the following:
+	// Emojis are stored under the instance account, so we
-	// `[ACCOUNT_ID]/[MEDIA_TYPE]/[MEDIA_SIZE]/[MEDIA_ID].[EXTENSION]`
+	// need the ID of the instance account for the next part.
-	// We can filter out keys we're not interested in by
-	// matching through a regex.
-	var matchCount int
-	match := func(storageKey string) bool {
-		if regexes.FilePath.MatchString(storageKey) {
-			matchCount++
-			return true
-		}
-		return false
-	}
-
-	iterator, err := m.state.Storage.Iterator(ctx, match) // make sure this iterator is always released
-	if err != nil {
-		return 0, fmt.Errorf("PruneOrphaned: error getting storage iterator: %w", err)
-	}
-
-	// Ensure we have some keys, and also advance
-	// the iterator to the first non-empty key.
-	if !iterator.Next() {
-		iterator.Release()
-		return 0, nil // nothing else to do here
-	}
-
-	// Emojis are stored under the instance account,
-	// so we need the ID of the instance account for
-	// the next part.
 	instanceAccount, err := m.state.DB.GetInstanceAccount(ctx, "")
 	if err != nil {
-		iterator.Release()
 		return 0, fmt.Errorf("PruneOrphaned: error getting instance account: %w", err)
 	}
+
 	instanceAccountID := instanceAccount.ID
 
-	// For each key in the iterator, check if entry is orphaned.
+	var orphanedKeys []string
-	orphanedKeys := make([]string, 0, matchCount)
+
-	for key := iterator.Key(); iterator.Next(); key = iterator.Key() {
+	// Keys in storage will look like the following format:
+	// `[ACCOUNT_ID]/[MEDIA_TYPE]/[MEDIA_SIZE]/[MEDIA_ID].[EXTENSION]`
+	// We can filter out keys we're not interested in by matching through a regex.
+	if err := m.state.Storage.WalkKeys(ctx, func(ctx context.Context, key string) error {
+		if !regexes.FilePath.MatchString(key) {
+			// This is not our expected key format.
+			return nil
+		}
+
+		// Check whether this storage entry is orphaned.
 		orphaned, err := m.orphaned(ctx, key, instanceAccountID)
 		if err != nil {
-			iterator.Release()
+			return fmt.Errorf("error checking orphaned status: %w", err)
-			return 0, fmt.Errorf("PruneOrphaned: checking orphaned status: %w", err)
 		}
 
 		if orphaned {
+			// Add this orphaned entry to list of keys.
 			orphanedKeys = append(orphanedKeys, key)
 		}
+
+		return nil
+	}); err != nil {
+		return 0, fmt.Errorf("PruneOrphaned: error walking keys: %w", err)
 	}
-	iterator.Release()
 
 	totalPruned := len(orphanedKeys)
 
@@ -211,9 +197,8 @@ func (m *manager) PruneOrphaned(ctx context.Context, dry bool) (int, error) {
 		return totalPruned, nil
 	}
 
-	// This is not a drill!
+	// This is not a drill! We have to delete stuff!
-	// We have to delete stuff!
+	return m.removeFiles(ctx, orphanedKeys...)
-	return totalPruned, m.removeFiles(ctx, orphanedKeys...)
 }
 
 func (m *manager) orphaned(ctx context.Context, key string, instanceAccountID string) (bool, error) {
@@ -330,7 +315,7 @@ func (m *manager) PruneUnusedLocal(ctx context.Context, dry bool) (int, error) {
 */
 
 func (m *manager) deleteAttachment(ctx context.Context, attachment *gtsmodel.MediaAttachment) error {
-	if err := m.removeFiles(ctx, attachment.File.Path, attachment.Thumbnail.Path); err != nil {
+	if _, err := m.removeFiles(ctx, attachment.File.Path, attachment.Thumbnail.Path); err != nil {
 		return err
 	}
 
@@ -339,7 +324,7 @@ func (m *manager) deleteAttachment(ctx context.Context, attachment *gtsmodel.Med
 }
 
 func (m *manager) uncacheAttachment(ctx context.Context, attachment *gtsmodel.MediaAttachment) error {
-	if err := m.removeFiles(ctx, attachment.File.Path, attachment.Thumbnail.Path); err != nil {
+	if _, err := m.removeFiles(ctx, attachment.File.Path, attachment.Thumbnail.Path); err != nil {
 		return err
 	}
 
@@ -350,7 +335,7 @@ func (m *manager) uncacheAttachment(ctx context.Context, attachment *gtsmodel.Me
 	return m.state.DB.UpdateByID(ctx, attachment, attachment.ID, "updated_at", "cached")
 }
 
-func (m *manager) removeFiles(ctx context.Context, keys ...string) error {
+func (m *manager) removeFiles(ctx context.Context, keys ...string) (int, error) {
 	errs := make(gtserror.MultiError, 0, len(keys))
 
 	for _, key := range keys {
@@ -359,5 +344,5 @@ func (m *manager) removeFiles(ctx context.Context, keys ...string) error {
 		}
 	}
 
-	return errs.Combine()
+	return len(keys) - len(errs), errs.Combine()
 }

internal/storage/storage.go

@@ -21,6 +21,7 @@
 import (
 	"context"
 	"fmt"
+	"io"
 	"mime"
 	"net/url"
 	"path"
@@ -28,7 +29,6 @@
 
 	"codeberg.org/gruf/go-bytesize"
 	"codeberg.org/gruf/go-cache/v3/ttl"
-	"codeberg.org/gruf/go-store/v2/kv"
 	"codeberg.org/gruf/go-store/v2/storage"
 	"github.com/minio/minio-go/v7"
 	"github.com/minio/minio-go/v7/pkg/credentials"
@@ -54,7 +54,6 @@ type PresignedURL struct {
 // Driver wraps a kv.KVStore to also provide S3 presigned GET URLs.
 type Driver struct {
 	// Underlying storage
-	*kv.KVStore
 	Storage storage.Storage
 
 	// S3-only parameters
@@ -63,6 +62,50 @@ type Driver struct {
 	PresignedCache *ttl.Cache[string, PresignedURL]
 }
 
+// Get returns the byte value for key in storage.
+func (d *Driver) Get(ctx context.Context, key string) ([]byte, error) {
+	return d.Storage.ReadBytes(ctx, key)
+}
+
+// GetStream returns an io.ReadCloser for the value bytes at key in the storage.
+func (d *Driver) GetStream(ctx context.Context, key string) (io.ReadCloser, error) {
+	return d.Storage.ReadStream(ctx, key)
+}
+
+// Put writes the supplied value bytes at key in the storage
+func (d *Driver) Put(ctx context.Context, key string, value []byte) (int, error) {
+	return d.Storage.WriteBytes(ctx, key, value)
+}
+
+// PutStream writes the bytes from supplied reader at key in the storage
+func (d *Driver) PutStream(ctx context.Context, key string, r io.Reader) (int64, error) {
+	return d.Storage.WriteStream(ctx, key, r)
+}
+
+// Remove attempts to remove the supplied key (and corresponding value) from storage.
+func (d *Driver) Delete(ctx context.Context, key string) error {
+	return d.Storage.Remove(ctx, key)
+}
+
+// Has checks if the supplied key is in the storage.
+func (d *Driver) Has(ctx context.Context, key string) (bool, error) {
+	return d.Storage.Stat(ctx, key)
+}
+
+// WalkKeys walks the keys in the storage.
+func (d *Driver) WalkKeys(ctx context.Context, walk func(context.Context, string) error) error {
+	return d.Storage.WalkKeys(ctx, storage.WalkKeysOptions{
+		WalkFn: func(ctx context.Context, entry storage.Entry) error {
+			return walk(ctx, entry.Key)
+		},
+	})
+}
+
+// Close will close the storage, releasing any file locks.
+func (d *Driver) Close() error {
+	return d.Storage.Close()
+}
+
 // URL will return a presigned GET object URL, but only if running on S3 storage with proxying disabled.
 func (d *Driver) URL(ctx context.Context, key string) *PresignedURL {
 	// Check whether S3 *without* proxying is enabled
@@ -128,7 +171,6 @@ func NewFileStorage() (*Driver, error) {
 	}
 
 	return &Driver{
-		KVStore: kv.New(disk),
 		Storage: disk,
 	}, nil
 }
@@ -163,7 +205,6 @@ func NewS3Storage() (*Driver, error) {
 	presignedCache.Start(urlCacheExpiryFrequency)
 
 	return &Driver{
-		KVStore:        kv.New(s3),
 		Proxy:          config.GetStorageS3Proxy(),
 		Bucket:         config.GetStorageS3BucketName(),
 		Storage:        s3,

testrig/storage.go

@@ -24,7 +24,6 @@
 	"os"
 	"path"
 
-	"codeberg.org/gruf/go-store/v2/kv"
 	"codeberg.org/gruf/go-store/v2/storage"
 	gtsstorage "github.com/superseriousbusiness/gotosocial/internal/storage"
 )
@@ -33,7 +32,6 @@
 func NewInMemoryStorage() *gtsstorage.Driver {
 	storage := storage.OpenMemory(200, false)
 	return &gtsstorage.Driver{
-		KVStore: kv.New(storage),
 		Storage: storage,
 	}
 }
@@ -95,30 +93,18 @@ func StandardStorageSetup(storage *gtsstorage.Driver, relativePath string) {
 	}
 }
 
-// StandardStorageTeardown deletes everything in storage so that it's clean for
+// StandardStorageTeardown deletes everything in storage so that it's clean for the next test.
-// the next test
-// nolint:gocritic // complains about the type switch, but it's the cleanest solution
 func StandardStorageTeardown(storage *gtsstorage.Driver) {
 	defer os.RemoveAll(path.Join(os.TempDir(), "gotosocial"))
 
-	// Open a storage iterator
-	iter, err := storage.Iterator(context.Background(), nil)
-	if err != nil {
-		panic(err)
-	}
-
 	var keys []string
 
-	for iter.Next() {
+	_ = storage.WalkKeys(context.Background(), func(ctx context.Context, key string) error {
-		// Collate all of the storage keys
+		keys = append(keys, key)
-		keys = append(keys, iter.Key())
+		return nil
-	}
+	})
-
-	// Done with iter
-	iter.Release()
 
 	for _, key := range keys {
-		// Ignore errors, we just want to attempt delete all
 		_ = storage.Delete(context.Background(), key)
 	}
 }