filelist/*: skip empty lines (MR 41)

fixes #36

internal/filelist/hookdirs/hookdirs.go

@@ -44,6 +44,10 @@ func (h *HookDirs) List() (*filelist.FileList, error) {
 		s := bufio.NewScanner(f)
 		for s.Scan() {
 			dir := s.Text()
+			if len(dir) == 0 {
+				continue
+			}
+
 			files.Add(dir, dir)
 		}
 	}

internal/filelist/hookfiles/hookfiles.go

@@ -58,7 +58,12 @@ func slurpFiles(fd io.Reader) (*filelist.FileList, error) {
 
 	s := bufio.NewScanner(fd)
 	for s.Scan() {
-		src, dest, has_dest := strings.Cut(s.Text(), ":")
+		line := s.Text()
+		if len(line) == 0 {
+			continue
+		}
+
+		src, dest, has_dest := strings.Cut(line, ":")
 
 		fFiles, err := misc.GetFiles([]string{src}, true)
 		if err != nil {

internal/filelist/modules/modules.go

@@ -95,6 +95,10 @@ func slurpModules(fd io.Reader, modDir string) (*filelist.FileList, error) {
 	s := bufio.NewScanner(fd)
 	for s.Scan() {
 		line := s.Text()
+		if len(line) == 0 {
+			continue
+		}
+
 		dir, file := filepath.Split(line)
 		if file == "" {
 			// item is a directory
@@ -194,7 +198,12 @@ func getModuleDeps(modName string, modulesDep io.Reader) ([]string, error) {
 
 	s := bufio.NewScanner(modulesDep)
 	for s.Scan() {
-		fields := strings.Fields(s.Text())
+		line := s.Text()
+		if len(line) == 0 {
+			continue
+		}
+
+		fields := strings.Fields(line)
 		if len(fields) == 0 {
 			continue
 		}