Redo old format

Why did I even remove it?

main.go

@@ -67,7 +67,10 @@ func main() {
 		go ReadFromStdin(instructions, status)
 
 	default:
-		if _, err := os.Stat("sync.yaml"); err == nil {
+		if _, err := os.Stat("sync"); err == nil {
+			LogInfo("Using default sync file")
+			go ReadFromFile("sync", instructions, status, true)
+		} else if _, err := os.Stat("sync.yaml"); err == nil {
 			LogInfo("Using default sync.yaml file")
 			go ReadFromFile("sync.yaml", instructions, status, true)
 		} else if _, err := os.Stat("sync.yml"); err == nil {
@@ -224,6 +227,28 @@ func ReadFromFile(input string, output chan *LinkInstruction, status chan error,
 		}
 		return
 	}
+
+	// Handle CSV format (legacy)
+	file, err := os.Open(input)
+	if err != nil {
+		log.Fatalf("Failed to open file %s%s%s: %s%+v%s",
+			SourceColor, input, DefaultColor, ErrorColor, err, DefaultColor)
+		return
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		instruction, err := ParseInstruction(line, filepath.Dir(input))
+		if err != nil {
+			log.Printf("Error parsing line: %s'%s'%s, error: %s%+v%s",
+				SourceColor, line, DefaultColor, ErrorColor, err, DefaultColor)
+			continue
+		}
+		log.Printf("Read instruction: %s", instruction.String())
+		output <- &instruction
+	}
 }
 
 func ReadFromArgs(output chan *LinkInstruction, status chan error) {