1 files changed, 43 insertions, 0 deletions
diff --git a/src/common/fs/symlink.cpp b/src/common/fs/symlink.cpp
new file mode 100644
index 0000000000..9c9fe3d50b
--- /dev/null
+++ b/src/common/fs/symlink.cpp
@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "symlink.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#include <fmt/format.h>
+#endif
+
+namespace fs = std::filesystem;
+
+// The sole purpose of this file is to treat symlinks like symlinks on POSIX,
+// or treat them as directory junctions on Windows.
+// This is because, for some inexplicable reason, Microsoft has locked symbolic
+// links behind a "security policy", whereas directory junctions--functionally identical
+// for directories, by the way--are not. Why? I don't know.
+
+namespace Common::FS {
+
+bool CreateSymlink(const fs::path &from, const fs::path &to)
+{
+#ifdef _WIN32
+    const std::string command = fmt::format("mklink /J {} {}", to.string(), from.string());
+    return system(command.c_str()) == 0;
+#else
+    std::error_code ec;
+    fs::create_directory_symlink(from, to, ec);
+    return !ec;
+#endif
+}
+
+bool IsSymlink(const fs::path &path)
+{
+#ifdef _WIN32
+    auto attributes = GetFileAttributesW(path.wstring().c_str());
+    return attributes & FILE_ATTRIBUTE_REPARSE_POINT;
+#else
+    return fs::is_symlink(path);
+#endif
+}
+
+} // namespace Common::FS