From 117b13d099d7b6ca8e5824a39be28d64a7f995d7 Mon Sep 17 00:00:00 2001
From: Anay Wadhera <awadhera@google.com>
Date: Tue, 8 Oct 2024 11:43:29 -0700
Subject: [PATCH] introduce copy file utility

PiperOrigin-RevId: 683707504
---
 internal/base/files.cc | 10 ++++++++++
 internal/base/files.h  |  5 +++++
 2 files changed, 15 insertions(+)

diff --git a/internal/base/files.cc b/internal/base/files.cc
index c3e3b12a..b0302848 100644
--- a/internal/base/files.cc
+++ b/internal/base/files.cc
@@ -105,4 +105,14 @@ bool CreateHardLink(const std::filesystem::path& target,
   return true;
 }
 
+bool CopyFileSafely(const std::filesystem::path& old_path,
+                    const std::filesystem::path& new_path) {
+  std::error_code error_code;
+  std::filesystem::copy(old_path, new_path, error_code);
+  if (error_code) {
+    return false;
+  }
+  return true;
+}
+
 }  // namespace nearby::sharing
diff --git a/internal/base/files.h b/internal/base/files.h
index 501e8752..40b1a976 100644
--- a/internal/base/files.h
+++ b/internal/base/files.h
@@ -56,6 +56,11 @@ bool CreateDirectories(const std::filesystem::path& path);
 bool CreateHardLink(const std::filesystem::path& target,
                     const std::filesystem::path& link_path);
 
+// Copies the file at old_path to new_path.
+// Returns true on success.
+bool CopyFileSafely(const std::filesystem::path& old_path,
+                    const std::filesystem::path& new_path);
+
 }  // namespace nearby::sharing
 
 #endif  // THIRD_PARTY_NEARBY_INTERNAL_BASE_FILES_H_