Merge pull request #2560 from brualan/master

Two small improvements to code quality

cmd/restic/global.go

@@ -232,7 +232,7 @@ func Warnf(format string, args ...interface{}) {
 // Exitf uses Warnf to write the message and then terminates the process with
 // the given exit code.
 func Exitf(exitcode int, format string, args ...interface{}) {
-	if format[len(format)-1] != '\n' {
+	if !(strings.HasSuffix(format, "\n")) {
 		format += "\n"
 	}
 

internal/checker/checker.go

@@ -132,9 +132,8 @@ func (c *Checker) LoadIndex(ctx context.Context) (hints []error, errs []error) {
 	}
 
 	// final closes indexCh after all workers have terminated
-	final := func() error {
+	final := func() {
 		close(resultCh)
-		return nil
 	}
 
 	// run workers on ch

internal/repository/repository.go

@@ -454,9 +454,8 @@ func (r *Repository) LoadIndex(ctx context.Context) error {
 	}
 
 	// final closes indexCh after all workers have terminated
-	final := func() error {
+	final := func() {
 		close(indexCh)
-		return nil
 	}
 
 	// run workers on ch

internal/repository/worker_group.go

@@ -10,7 +10,7 @@ import (
 // After all workers have terminated, finalFunc is run. If an error occurs in
 // one of the workers, it is returned. FinalFunc is always run, regardless of
 // any other previous errors.
-func RunWorkers(ctx context.Context, count int, workerFunc, finalFunc func() error) error {
+func RunWorkers(ctx context.Context, count int, workerFunc func() error, finalFunc func()) error {
 	wg, ctx := errgroup.WithContext(ctx)
 
 	// run workers
@@ -22,14 +22,8 @@ func RunWorkers(ctx context.Context, count int, workerFunc, finalFunc func() err
 	err := wg.Wait()
 
 	// make sure finalFunc is run
-	finalErr := finalFunc()
+	finalFunc()
 
-	// if the workers returned an error, return it to the caller (disregarding
-	// any error from finalFunc)
-	if err != nil {
-		return err
-	}
-
-	// if not, return the value finalFunc returned
-	return finalErr
+	// return error from workers to the caller
+	return err
 }