diff --git a/src/dotfile.cpp b/src/dotfile.cpp
new file mode 100644
index 0000000..cd048cb
--- /dev/null
+++ b/src/dotfile.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2021 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <cstdio> // fprintf, printf
+#include <filesystem>
+#include <string>
+#include <vector>
+
+#include "dotfile.h"
+
+namespace Util {
+
+std::vector<Dotfile::ExcludePath> Dotfile::s_excludePaths;
+std::filesystem::path Dotfile::s_workingDirectory;
+
+Dotfile::Dotfile()
+{
+}
+
+Dotfile::~Dotfile()
+{
+}
+
+// -----------------------------------------
+
+void Dotfile::list()
+{
+	if (s_workingDirectory.empty()) {
+		fprintf(stderr, "\033[31;1mDotfile:\033[0m working directory is unset\n");
+		return;
+	}
+
+	if (!std::filesystem::is_directory(s_workingDirectory)) {
+		fprintf(stderr, "\033[31;1mDotfile:\033[0m working directory is not a directory\n");
+		return;
+	}
+
+	size_t workingDirectory = s_workingDirectory.string().size() + 1;
+	for (const auto& path : std::filesystem::recursive_directory_iterator { s_workingDirectory }) {
+		if (path.is_directory() || filter(path)) {
+			continue;
+		}
+		printf("%s\n", path.path().c_str() + workingDirectory);
+	}
+}
+
+// -----------------------------------------
+
+bool Dotfile::filter(const std::filesystem::path& path)
+{
+	for (auto& excludePath : s_excludePaths) {
+		if (excludePath.type == ExcludeType::File) {
+			if (path.string() == s_workingDirectory / excludePath.path) {
+				return true;
+			}
+		}
+		else if (excludePath.type == ExcludeType::Directory) {
+			if (path.string().find(s_workingDirectory / excludePath.path) == 0) {
+				return true;
+			}
+		}
+		else if (excludePath.type == ExcludeType::EndsWith) {
+			if (path.string().find(excludePath.path) == path.string().size() - excludePath.path.size()) {
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
+} // namespace Util
diff --git a/src/dotfile.h b/src/dotfile.h
new file mode 100644
index 0000000..ae12d37
--- /dev/null
+++ b/src/dotfile.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2021 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef DOTFILE_H
+#define DOTFILE_H
+
+#include <filesystem>
+#include <string>
+#include <vector>
+
+namespace Util {
+
+class Dotfile {
+public:
+	Dotfile();
+	virtual ~Dotfile();
+
+	enum class ExcludeType {
+		File,
+		Directory,
+		EndsWith,
+	};
+
+	struct ExcludePath {
+		ExcludeType type;
+		std::string path;
+	};
+
+	static void list();
+
+	static void setWorkingDirectory(std::filesystem::path directory) { s_workingDirectory = directory; }
+	static void setExcludePaths(const std::vector<ExcludePath>& excludePaths) { s_excludePaths = excludePaths; }
+
+private:
+	static bool filter(const std::filesystem::path& path);
+
+	static std::vector<ExcludePath> s_excludePaths;
+	static std::filesystem::path s_workingDirectory;
+};
+
+} // namespace Util
+
+#endif // DOTFILE_H