chore: further minor lint fixes

.golangci.yml

@@ -4,6 +4,7 @@ linters:
   disable:
     - cyclop
     - depguard
+    - err113
     - exhaustive
     - exhaustruct
     - forbidigo
@@ -53,6 +54,7 @@ linters:
       - third_party$
       - builtin$
       - examples$
+      - _test\.go$
 formatters:
   enable:
     - gofumpt

lib/model/blockpullreorderer.go

@@ -92,7 +92,7 @@ func (p *standardBlockPullReorderer) Reorder(blocks []protocol.BlockInfo) []prot
 	// The rest of the chunks we fetch in a random order in whole chunks.
 	// Generate chunk index slice and shuffle it
 	indexes := make([]int, 0, len(chunks)-1)
-	for i := 0; i < len(chunks); i++ {
+	for i := range len(chunks) {
 		if i != p.myIndex {
 			indexes = append(indexes, i)
 		}

lib/model/devicedownloadstate.go

@@ -60,12 +60,12 @@ func (p *deviceFolderDownloadState) Update(updates []protocol.FileDownloadProgre
 				local = deviceFolderFileDownloadState{
 					blockIndexes: update.BlockIndexes,
 					version:      update.Version,
-					blockSize:    int(update.BlockSize),
+					blockSize:    update.BlockSize,
 				}
 			} else if !local.version.Equal(update.Version) {
 				local.blockIndexes = append(local.blockIndexes[:0], update.BlockIndexes...)
 				local.version = update.Version
-				local.blockSize = int(update.BlockSize)
+				local.blockSize = update.BlockSize
 			} else {
 				local.blockIndexes = append(local.blockIndexes, update.BlockIndexes...)
 			}

lib/model/folder_sendrecv.go

@@ -179,7 +179,7 @@ func (f *sendReceiveFolder) pull() (bool, error) {
 	f.errorsMut.Unlock()
 
 	var err error
-	for tries := 0; tries < maxPullerIterations; tries++ {
+	for tries := range maxPullerIterations {
 		select {
 		case <-f.ctx.Done():
 			return false, f.ctx.Err()
@@ -259,7 +259,7 @@ func (f *sendReceiveFolder) pullerIteration(scanChan chan<- string) (int, error)
 		updateWg.Done()
 	}()
 
-	for i := 0; i < f.Copiers; i++ {
+	for range f.Copiers {
 		copyWg.Add(1)
 		go func() {
 			// copierRoutine finishes when copyChan is closed
@@ -1358,7 +1358,7 @@ func (f *sendReceiveFolder) copierRoutine(in <-chan copyBlocksState, pullChan ch
 
 // Returns true when the block was successfully copied.
 func (f *sendReceiveFolder) copyBlock(block protocol.BlockInfo, state copyBlocksState, otherFolderFilesystems map[string]fs.Filesystem) bool {
-	buf := protocol.BufferPool.Get(int(block.Size))
+	buf := protocol.BufferPool.Get(block.Size)
 	defer protocol.BufferPool.Put(buf)
 
 	// Hope that it's usually in the same folder, so start with that
@@ -1561,7 +1561,7 @@ loop:
 		activity.using(selected)
 		var buf []byte
 		blockNo := int(state.block.Offset / int64(state.file.BlockSize()))
-		buf, lastError = f.model.RequestGlobal(f.ctx, selected.ID, f.folderID, state.file.Name, blockNo, state.block.Offset, int(state.block.Size), state.block.Hash, selected.FromTemporary)
+		buf, lastError = f.model.RequestGlobal(f.ctx, selected.ID, f.folderID, state.file.Name, blockNo, state.block.Offset, state.block.Size, state.block.Hash, selected.FromTemporary)
 		activity.done(selected)
 		if lastError != nil {
 			l.Debugln("request:", f.folderID, state.file.Name, state.block.Offset, state.block.Size, selected.ID.Short(), "returned error:", lastError)

lib/model/indexhandler.go

@@ -106,7 +106,9 @@ func newIndexHandler(conn protocol.Connection, downloads *deviceDownloadState, f
 		// information we have from them before accepting their
 		// index, which will presumably be a full index.
 		l.Debugf("Device %v folder %s does not announce an index ID", conn.DeviceID().Short(), folder.Description())
-		sdb.DropAllFiles(folder.ID, conn.DeviceID())
+		if err := sdb.DropAllFiles(folder.ID, conn.DeviceID()); err != nil {
+			return nil, err
+		}
 	} else if startInfo.remote.IndexID != theirIndexID {
 		// The index ID we have on file is not what they're
 		// announcing. They must have reset their database and
@@ -114,8 +116,12 @@ func newIndexHandler(conn protocol.Connection, downloads *deviceDownloadState, f
 		// information we have and remember this new index ID
 		// instead.
 		l.Infof("Device %v folder %s has a new index ID (%v)", conn.DeviceID().Short(), folder.Description(), startInfo.remote.IndexID)
-		sdb.DropAllFiles(folder.ID, conn.DeviceID())
+		if err := sdb.DropAllFiles(folder.ID, conn.DeviceID()); err != nil {
-		sdb.SetIndexID(folder.ID, conn.DeviceID(), startInfo.remote.IndexID)
+			return nil, err
+		}
+		if err := sdb.SetIndexID(folder.ID, conn.DeviceID(), startInfo.remote.IndexID); err != nil {
+			return nil, err
+		}
 	}
 
 	return &indexHandler{
@@ -133,7 +139,7 @@ func newIndexHandler(conn protocol.Connection, downloads *deviceDownloadState, f
 	}, nil
 }
 
-// waitWhilePaused waits for the handler to resume
+// waitWhilePaused waits for the handler to resume.
 func (s *indexHandler) waitWhilePaused(ctx context.Context) error {
 	s.cond.L.Lock()
 	defer s.cond.L.Unlock()

lib/model/model.go

@@ -372,7 +372,7 @@ func (m *model) addAndStartFolderLockedWithIgnores(cfg config.FolderConfiguratio
 	for _, available := range devs {
 		if _, ok := expected[available]; !ok {
 			l.Debugln("dropping", folder, "state for", available)
-			m.sdb.DropAllFiles(folder, available)
+			_ = m.sdb.DropAllFiles(folder, available)
 		}
 	}
 
@@ -493,7 +493,7 @@ func (m *model) removeFolder(cfg config.FolderConfiguration) {
 	m.mut.Unlock()
 
 	// Remove it from the database
-	m.sdb.DropFolder(cfg.ID)
+	_ = m.sdb.DropFolder(cfg.ID)
 }
 
 // Need to hold lock on m.mut when calling this.
@@ -1559,7 +1559,7 @@ func (m *model) ccCheckEncryption(fcfg config.FolderConfiguration, folderDevice
 
 	if isEncryptedRemote {
 		passwordToken := protocol.PasswordToken(m.keyGen, fcfg.ID, folderDevice.EncryptionPassword)
-		match := false
+		var match bool
 		if hasTokenLocal {
 			match = bytes.Equal(passwordToken, ccDeviceInfos.local.EncryptionPasswordToken)
 		} else {

lib/model/sentdownloadstate.go

@@ -97,7 +97,7 @@ func (s *sentFolderDownloadState) update(pullers []*sharedPullerState) []protoco
 			localFile.updated = pullerBlockIndexesUpdated
 			localFile.version = pullerVersion
 			localFile.created = pullerCreated
-			localFile.blockSize = int(pullerBlockSize)
+			localFile.blockSize = pullerBlockSize
 			continue
 		}
 

lib/model/service_map.go

@@ -8,6 +8,7 @@ package model
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"
 
@@ -16,7 +17,7 @@ import (
 	"github.com/thejerf/suture/v4"
 )
 
-var errSvcNotFound = fmt.Errorf("service not found")
+var errSvcNotFound = errors.New("service not found")
 
 // A serviceMap is a utility map of arbitrary keys to a suture.Service of
 // some kind, where adding and removing services ensures they are properly
@@ -65,7 +66,6 @@ func (s *serviceMap[K, S]) Stop(k K) {
 	if tok, ok := s.tokens[k]; ok {
 		s.supervisor.Remove(tok)
 	}
-	return
 }
 
 // StopAndWaitChan removes the service at the given key from the supervisor,