add omit test files and only frontend

internal/filter/filter.go

@@ -1,3 +1,4 @@
+// internal/filter/filter.go
 package filter
 
 import (
@@ -10,6 +11,7 @@ type Filter struct {
 	MaxSize    int64
 	Extensions []string
 	Ignores    []string
+	OmitTest   bool
 }
 
 func (f *Filter) ShouldSkipDir(name string) bool {
@@ -48,6 +50,28 @@ func (f *Filter) ShouldSkipFile(path, name string, info os.FileInfo) bool {
 		return true
 	}
 
+	if f.OmitTest && isTestFile(path, name) {
+		return true
+	}
+
+	return false
+}
+
+func isTestFile(path, name string) bool {
+	ext := strings.ToLower(filepath.Ext(path))
+
+	switch ext {
+	case ".go":
+		return strings.HasSuffix(strings.ToLower(name), "_test.go")
+	case ".java":
+		base := strings.TrimSuffix(name, filepath.Ext(name))
+		if strings.HasSuffix(base, "Test") || strings.HasSuffix(base, "Tests") {
+			return true
+		}
+		slashPath := filepath.ToSlash(path)
+		return strings.Contains(slashPath, "/src/test/")
+	}
+
 	return false
 }