cmSystemTools: add utilities to copy a file with error handling

1 files changed, 18 insertions, 0 deletions

diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 3cc032c..2ff4c5d 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -128,6 +128,24 @@ public:
   static bool SimpleGlob(const std::string& glob,
                          std::vector<std::string>& files, int type = 0);
 
+  enum class CopyWhen
+  {
+    Always,
+    OnlyIfDifferent,
+  };
+  enum class CopyResult
+  {
+    Success,
+    Failure,
+  };
+
+  /** Copy a file. */
+  static bool CopySingleFile(const std::string& oldname,
+                             const std::string& newname);
+  static CopyResult CopySingleFile(std::string const& oldname,
+                                   std::string const& newname, CopyWhen when,
+                                   std::string* err = nullptr);
+
   enum class Replace
   {
     Yes,