CPackWIX: support installation of empty directories

3 files changed, 36 insertions, 0 deletions

diff --git a/Source/CPack/WiX/cmCPackWIXGenerator.cxx b/Source/CPack/WiX/cmCPackWIXGenerator.cxx
index 1ba43b3..a385e40 100644
--- a/Source/CPack/WiX/cmCPackWIXGenerator.cxx
+++ b/Source/CPack/WiX/cmCPackWIXGenerator.cxx
@@ -814,6 +814,16 @@ void cmCPackWIXGenerator::AddDirectoryAndFileDefinitons(
   cmsys::Directory dir;
   dir.Load(topdir.c_str());
 
+  if(dir.GetNumberOfFiles() == 2)
+    {
+    std::string componentId = fileDefinitions.EmitComponentCreateFolder(
+      directoryId, GenerateGUID());
+
+    featureDefinitions.EmitComponentRef(componentId);
+
+    return;
+    }
+
   for(size_t i = 0; i < dir.GetNumberOfFiles(); ++i)
     {
     std::string fileName = dir.GetFile(static_cast<unsigned long>(i));
diff --git a/Source/CPack/WiX/cmWIXFilesSourceWriter.cxx b/Source/CPack/WiX/cmWIXFilesSourceWriter.cxx
index 0835f3a..3fd959e 100644
--- a/Source/CPack/WiX/cmWIXFilesSourceWriter.cxx
+++ b/Source/CPack/WiX/cmWIXFilesSourceWriter.cxx
@@ -109,6 +109,28 @@ void cmWIXFilesSourceWriter::EmitUninstallShortcut(
   EndElement("Shortcut");
 }
 
+std::string cmWIXFilesSourceWriter::EmitComponentCreateFolder(
+  std::string const& directoryId, std::string const& guid)
+{
+  std::string componentId =
+    std::string("CM_C_EMPTY_") + directoryId;
+
+  BeginElement("DirectoryRef");
+  AddAttribute("Id", directoryId);
+
+  BeginElement("Component");
+  AddAttribute("Id", componentId);
+  AddAttribute("Guid", guid);
+
+  BeginElement("CreateFolder");
+
+  EndElement("CreateFolder");
+  EndElement("Component");
+  EndElement("DirectoryRef");
+
+  return componentId;
+}
+
 std::string cmWIXFilesSourceWriter::EmitComponentFile(
   std::string const& directoryId,
   std::string const& id,
diff --git a/Source/CPack/WiX/cmWIXFilesSourceWriter.h b/Source/CPack/WiX/cmWIXFilesSourceWriter.h
index d22d270..13122c2 100644
--- a/Source/CPack/WiX/cmWIXFilesSourceWriter.h
+++ b/Source/CPack/WiX/cmWIXFilesSourceWriter.h
@@ -45,6 +45,10 @@ public:
 
   void EmitUninstallShortcut(std::string const& packageName);
 
+  std::string EmitComponentCreateFolder(
+    std::string const& directoryId,
+    std::string const& guid);
+
   std::string EmitComponentFile(
     std::string const& directoryId,
     std::string const& id,