refactor: Separate function for grep results formatting

internal/processing/walk.go

@@ -11,6 +11,21 @@ import (
 // ChannelBuffering is the size of file processing results queue
 const ChannelBuffering = 10
 
+func printGrepResults(processedChannel chan models.FileMatchData, expectedItems int) error {
+	for ; expectedItems > 0; expectedItems-- {
+		curProcessed := <-processedChannel
+		if len(curProcessed.Lines) == 0 {
+			continue
+		}
+		fmt.Printf("%s:\n", curProcessed.Path)
+		for i := 0; i < len(curProcessed.Lines); i++ {
+			fmt.Printf("%d:%s\n", curProcessed.LineIndexes[i], curProcessed.Lines[i])
+		}
+		fmt.Print("\n")
+	}
+	return nil
+}
+
 // DoGrepMain performs full grep accorgind to config and root
 func DoGrepMain(config *models.GrepConfigInternal, root string) error {
 	processedChannel := make(chan models.FileMatchData, ChannelBuffering)
@@ -31,16 +46,12 @@ func DoGrepMain(config *models.GrepConfigInternal, root string) error {
 
 		return nil
 	})
-	for ; totalFiles > 0; totalFiles-- {
-		curProcessed := <-processedChannel
-		if len(curProcessed.Lines) == 0 {
-			continue
+	if err != nil {
+		return err
 	}
-		fmt.Printf("%s:\n", curProcessed.Path)
-		for i := 0; i < len(curProcessed.Lines); i++ {
-			fmt.Printf("%d:%s\n", curProcessed.LineIndexes[i], curProcessed.Lines[i])
-		}
-		fmt.Print("\n")
+	err = printGrepResults(processedChannel, totalFiles)
+	if err != nil {
+		return err
 	}
 	return err
 }