From 53cabbb1343ce005dd259641432af2cc06b2bd3e Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Sat, 3 Jul 2021 16:48:22 +1000
Subject: [PATCH] FileSystem: Add RenamePath()

---
 src/common/file_system.cpp | 28 ++++++++++++++++++++++++++++
 src/common/file_system.h   |  3 +++
 2 files changed, 31 insertions(+)

diff --git a/src/common/file_system.cpp b/src/common/file_system.cpp
index 8efe8e93a..2602fef97 100644
--- a/src/common/file_system.cpp
+++ b/src/common/file_system.cpp
@@ -1571,6 +1571,20 @@ bool FileSystem::DeleteFile(const char* Path)
     return false;
 }
 
+bool FileSystem::RenamePath(const char* OldPath, const char* NewPath)
+{
+  const std::wstring old_wpath(StringUtil::UTF8StringToWideString(OldPath));
+  const std::wstring new_wpath(StringUtil::UTF8StringToWideString(NewPath));
+
+  if (!MoveFileExW(old_wpath.c_str(), new_wpath.c_str(), MOVEFILE_REPLACE_EXISTING))
+  {
+    Log_ErrorPrintf("MoveFileEx('%s', '%s') failed: %08X", OldPath, NewPath, GetLastError());
+    return false;
+  }
+
+  return true;
+}
+
 static bool RecursiveDeleteDirectory(const std::wstring& wpath, bool Recursive)
 {
   // ensure it exists
@@ -2046,6 +2060,20 @@ bool DeleteFile(const char* Path)
   return (unlink(Path) == 0);
 }
 
+bool RenamePath(const char* OldPath, const char* NewPath)
+{
+  if (OldPath[0] == '\0' || NewPath[0] == '\0')
+    return false;
+
+  if (rename(OldPath, NewPath) != 0)
+  {
+    Log_ErrorPrintf("rename('%s', '%s') failed: %d", OldPath, NewPath, errno);
+    return false;
+  }
+
+  return true;
+}
+
 bool DeleteDirectory(const char* Path, bool Recursive)
 {
   Log_ErrorPrintf("FileSystem::DeleteDirectory(%s) not implemented", Path);
diff --git a/src/common/file_system.h b/src/common/file_system.h
index 9547a74f5..3fa33ab82 100644
--- a/src/common/file_system.h
+++ b/src/common/file_system.h
@@ -182,6 +182,9 @@ bool DirectoryExists(const char* Path);
 // delete file
 bool DeleteFile(const char* Path);
 
+// rename file
+bool RenamePath(const char* OldPath, const char* NewPath);
+
 // open files
 std::unique_ptr<ByteStream> OpenFile(const char* FileName, u32 Flags);