CPackWiX: add CPack component support

Creates a hierarchy of WiX features from CPack components and component groups.
Switch to the FeatureTree UI in case components have been defined.
Handles the component REQUIRE and HIDDEN options
and the component group EXPANDED option.

Modules/CPackWIX.cmake

@@ -63,6 +63,14 @@
 #
 #  If set, this icon is used in place of the default icon.
 #
+# .. variable:: CPACK_WIX_UI_REF
+#
+#  This variable allows you to override the Id of the ``<UIRef>`` element
+#  in the WiX template.
+#
+#  The default is ``WixUI_InstallDir`` in case no CPack components have
+#  been defined and ``WixUI_FeatureTree`` otherwise.
+#
 # .. variable:: CPACK_WIX_UI_BANNER
 #
 #  The bitmap will appear at the top of all installer pages other than the

Modules/WIX.template.in

@@ -39,6 +39,6 @@
 
         <FeatureRef Id="ProductFeature"/>
 
-        <UIRef Id="WixUI_InstallDir" />
+        <UIRef Id="$(var.CPACK_WIX_UI_REF)" />
     </Product>
 </Wix>

Source/CPack/WiX/cmCPackWIXGenerator.cxx

@@ -198,6 +198,18 @@ bool cmCPackWIXGenerator::InitializeWiXConfiguration()
       << std::endl);
     }
 
+  if(GetOption("CPACK_WIX_UI_REF") == 0)
+    {
+    std::string defaultRef = "WixUI_InstallDir";
+
+    if(Components.size())
+      {
+      defaultRef = "WixUI_FeatureTree";
+      }
+
+    SetOption("CPACK_WIX_UI_REF", defaultRef.c_str());
+    }
+
   CollectExtensions("CPACK_WIX_EXTENSIONS", candleExtensions);
   CollectExtensions("CPACK_WIX_CANDLE_EXTENSIONS", candleExtensions);
 
@@ -296,6 +308,7 @@ bool cmCPackWIXGenerator::CreateWiXVariablesIncludeFile()
   SetOptionIfNotSet("CPACK_WIX_PROGRAM_MENU_FOLDER",
     GetOption("CPACK_PACKAGE_NAME"));
   CopyDefinition(includeFile, "CPACK_WIX_PROGRAM_MENU_FOLDER");
+  CopyDefinition(includeFile, "CPACK_WIX_UI_REF");
 
   return true;
 }
@@ -401,40 +414,77 @@ bool cmCPackWIXGenerator::CreateWiXSourceFiles()
 
   featureDefinitions.BeginElement("Feature");
   featureDefinitions.AddAttribute("Id", "ProductFeature");
-  featureDefinitions.AddAttribute("Title", Name);
+  featureDefinitions.AddAttribute("Display", "expand");
+  featureDefinitions.AddAttribute("ConfigurableDirectory", "INSTALL_ROOT");
+
+  std::string cpackPackageName;
+  if(!RequireOption("CPACK_PACKAGE_NAME", cpackPackageName))
+    {
+    return false;
+    }
+  featureDefinitions.AddAttribute("Title", cpackPackageName);
+
   featureDefinitions.AddAttribute("Level", "1");
+
+  CreateFeatureHierarchy(featureDefinitions);
+
   featureDefinitions.EndElement("Feature");
 
-  featureDefinitions.BeginElement("FeatureRef");
-  featureDefinitions.AddAttribute("Id", "ProductFeature");
+  bool hasShortcuts = false;
 
-  std::vector<std::string> cpackPackageExecutablesList;
-  const char *cpackPackageExecutables = GetOption("CPACK_PACKAGE_EXECUTABLES");
-  if(cpackPackageExecutables)
+  shortcut_map_t globalShortcuts;
+  if(Components.empty())
     {
-      cmSystemTools::ExpandListArgument(cpackPackageExecutables,
-        cpackPackageExecutablesList);
-      if(cpackPackageExecutablesList.size() % 2 != 0 )
+    AddComponentsToFeature(toplevel, "ProductFeature",
+      directoryDefinitions, fileDefinitions, featureDefinitions,
+      globalShortcuts);
+    if(globalShortcuts.size())
+      {
+      hasShortcuts = true;
+      }
+    }
+  else
+    {
+    for(std::map<std::string, cmCPackComponent>::const_iterator
+      i = Components.begin(); i != Components.end(); ++i)
+      {
+      cmCPackComponent const& component = i->second;
+
+      std::string componentPath = toplevel;
+      componentPath += "/";
+      componentPath += component.Name;
+
+      std::string componentFeatureId = "CM_C_" + component.Name;
+
+      shortcut_map_t featureShortcuts;
+      AddComponentsToFeature(componentPath, componentFeatureId,
+        directoryDefinitions, fileDefinitions,
+        featureDefinitions, featureShortcuts);
+      if(featureShortcuts.size())
         {
-        cmCPackLogger(cmCPackLog::LOG_ERROR,
-          "CPACK_PACKAGE_EXECUTABLES should contain pairs of <executable> and "
-          "<text label>." << std::endl);
-        return false;
+        hasShortcuts = true;
         }
-    }
 
-  AddDirectoryAndFileDefinitons(
-    toplevel, "INSTALL_ROOT",
-    directoryDefinitions, fileDefinitions, featureDefinitions,
-    cpackPackageExecutablesList);
+      if(featureShortcuts.size())
+        {
+        if(!CreateStartMenuShortcuts(component.Name, componentFeatureId,
+          featureShortcuts, fileDefinitions, featureDefinitions))
+          {
+          return false;
+          }
+        }
+      }
+    }
 
-  if(!CreateStartMenuShortcuts(
-    directoryDefinitions, fileDefinitions, featureDefinitions))
+  if(hasShortcuts)
     {
+    if(!CreateStartMenuShortcuts(std::string(), "ProductFeature",
+        globalShortcuts, fileDefinitions, featureDefinitions))
+      {
       return false;
+      }
     }
 
-  featureDefinitions.EndElement("FeatureRef");
   featureDefinitions.EndElement("Fragment");
   fileDefinitions.EndElement("Fragment");
 
@@ -444,6 +494,12 @@ bool cmCPackWIXGenerator::CreateWiXSourceFiles()
     }
 
   directoryDefinitions.EndElement("Directory");
+
+  if(hasShortcuts)
+    {
+    CreateStartMenuFolder(directoryDefinitions);
+    }
+
   directoryDefinitions.EndElement("Directory");
   directoryDefinitions.EndElement("Fragment");
 
@@ -475,16 +531,154 @@ bool cmCPackWIXGenerator::CreateWiXSourceFiles()
   return true;
 }
 
-bool cmCPackWIXGenerator::CreateStartMenuShortcuts(
+bool cmCPackWIXGenerator::CreateFeatureHierarchy(
+  cmWIXSourceWriter& featureDefinitions)
+{
+  for(std::map<std::string, cmCPackComponentGroup>::const_iterator
+    i = ComponentGroups.begin(); i != ComponentGroups.end(); ++i)
+    {
+    cmCPackComponentGroup const& group = i->second;
+    if(group.ParentGroup == 0)
+      {
+      if(!EmitFeatureForComponentGroup(featureDefinitions, group))
+        {
+        return false;
+        }
+      }
+    }
+
+  for(std::map<std::string, cmCPackComponent>::const_iterator
+    i = Components.begin(); i != Components.end(); ++i)
+    {
+    cmCPackComponent const& component = i->second;
+
+    if(!component.Group)
+      {
+      if(!EmitFeatureForComponent(featureDefinitions, component))
+        {
+        return false;
+        }
+      }
+    }
+
+  return true;
+}
+
+bool cmCPackWIXGenerator::EmitFeatureForComponentGroup(
+  cmWIXSourceWriter& featureDefinitions,
+  cmCPackComponentGroup const& group)
+{
+  featureDefinitions.BeginElement("Feature");
+  featureDefinitions.AddAttribute("Id", "CM_G_" + group.Name);
+
+  if(group.IsExpandedByDefault)
+    {
+    featureDefinitions.AddAttribute("Display", "expand");
+    }
+
+  featureDefinitions.AddAttributeUnlessEmpty(
+    "Title", group.DisplayName);
+
+  featureDefinitions.AddAttributeUnlessEmpty(
+    "Description", group.Description);
+
+  for(std::vector<cmCPackComponentGroup*>::const_iterator
+    i = group.Subgroups.begin(); i != group.Subgroups.end(); ++i)
+    {
+    if(!EmitFeatureForComponentGroup(featureDefinitions, **i))
+      {
+      return false;
+      }
+    }
+
+  for(std::vector<cmCPackComponent*>::const_iterator
+    i = group.Components.begin(); i != group.Components.end(); ++i)
+    {
+    if(!EmitFeatureForComponent(featureDefinitions, **i))
+      {
+      return false;
+      }
+    }
+
+  featureDefinitions.EndElement("Feature");
+
+  return true;
+}
+
+bool cmCPackWIXGenerator::EmitFeatureForComponent(
+  cmWIXSourceWriter& featureDefinitions,
+  cmCPackComponent const& component)
+{
+  featureDefinitions.BeginElement("Feature");
+  featureDefinitions.AddAttribute("Id", "CM_C_" + component.Name);
+
+  featureDefinitions.AddAttributeUnlessEmpty(
+    "Title", component.DisplayName);
+
+  featureDefinitions.AddAttributeUnlessEmpty(
+    "Description", component.Description);
+
+  if(component.IsRequired)
+    {
+    featureDefinitions.AddAttribute("Absent", "disallow");
+    }
+
+  if(component.IsHidden)
+    {
+    featureDefinitions.AddAttribute("Display", "hidden");
+    }
+
+  featureDefinitions.EndElement("Feature");
+
+  return true;
+}
+
+bool cmCPackWIXGenerator::AddComponentsToFeature(
+  std::string const& rootPath,
+  std::string const& featureId,
   cmWIXSourceWriter& directoryDefinitions,
   cmWIXSourceWriter& fileDefinitions,
-  cmWIXSourceWriter& featureDefinitions)
+  cmWIXSourceWriter& featureDefinitions,
+  shortcut_map_t& shortcutMap)
 {
-  if(shortcutMap.empty())
+  featureDefinitions.BeginElement("FeatureRef");
+  featureDefinitions.AddAttribute("Id", featureId);
+
+  std::vector<std::string> cpackPackageExecutablesList;
+  const char *cpackPackageExecutables = GetOption("CPACK_PACKAGE_EXECUTABLES");
+  if(cpackPackageExecutables)
     {
-      return true;
+      cmSystemTools::ExpandListArgument(cpackPackageExecutables,
+        cpackPackageExecutablesList);
+      if(cpackPackageExecutablesList.size() % 2 != 0 )
+        {
+        cmCPackLogger(cmCPackLog::LOG_ERROR,
+          "CPACK_PACKAGE_EXECUTABLES should contain pairs of <executable> and "
+          "<text label>." << std::endl);
+        return false;
+        }
     }
 
+  AddDirectoryAndFileDefinitons(
+    rootPath, "INSTALL_ROOT",
+    directoryDefinitions, fileDefinitions, featureDefinitions,
+    cpackPackageExecutablesList, shortcutMap);
+
+  featureDefinitions.EndElement("FeatureRef");
+
+  return true;
+}
+
+bool cmCPackWIXGenerator::CreateStartMenuShortcuts(
+  std::string const& cpackComponentName,
+  std::string const& featureId,
+  shortcut_map_t& shortcutMap,
+  cmWIXSourceWriter& fileDefinitions,
+  cmWIXSourceWriter& featureDefinitions)
+{
+  featureDefinitions.BeginElement("FeatureRef");
+  featureDefinitions.AddAttribute("Id", featureId);
+
   std::string cpackVendor;
   if(!RequireOption("CPACK_PACKAGE_VENDOR", cpackVendor))
     {
@@ -497,10 +691,19 @@ bool cmCPackWIXGenerator::CreateStartMenuShortcuts(
     return false;
     }
 
+  std::string idSuffix;
+  if(!cpackComponentName.empty())
+    {
+      idSuffix += "_";
+      idSuffix += cpackComponentName;
+    }
+
+  std::string componentId = "CM_SHORTCUT" + idSuffix;
+
   fileDefinitions.BeginElement("DirectoryRef");
   fileDefinitions.AddAttribute("Id", "PROGRAM_MENU_FOLDER");
   fileDefinitions.BeginElement("Component");
-  fileDefinitions.AddAttribute("Id", "SHORTCUT");
+  fileDefinitions.AddAttribute("Id", componentId);
   fileDefinitions.AddAttribute("Guid", "*");
 
   for(shortcut_map_t::const_iterator
@@ -522,10 +725,13 @@ bool cmCPackWIXGenerator::CreateStartMenuShortcuts(
     fileDefinitions.EndElement("Shortcut");
     }
 
-  CreateUninstallShortcut(cpackPackageName, fileDefinitions);
+  if(cpackComponentName.empty())
+    {
+    CreateUninstallShortcut(cpackPackageName, fileDefinitions);
+    }
 
   fileDefinitions.BeginElement("RemoveFolder");
-  fileDefinitions.AddAttribute("Id", "PROGRAM_MENU_FOLDER");
+  fileDefinitions.AddAttribute("Id", "PROGRAM_MENU_FOLDER" + idSuffix);
   fileDefinitions.AddAttribute("On", "uninstall");
   fileDefinitions.EndElement("RemoveFolder");
 
@@ -535,7 +741,15 @@ bool cmCPackWIXGenerator::CreateStartMenuShortcuts(
   fileDefinitions.BeginElement("RegistryValue");
   fileDefinitions.AddAttribute("Root", "HKCU");
   fileDefinitions.AddAttribute("Key", registryKey);
-  fileDefinitions.AddAttribute("Name", "installed");
+
+  std::string valueName;
+  if(!cpackComponentName.empty())
+    {
+      valueName = cpackComponentName + "_";
+    }
+  valueName += "installed";
+
+  fileDefinitions.AddAttribute("Name", valueName);
   fileDefinitions.AddAttribute("Type", "integer");
   fileDefinitions.AddAttribute("Value", "1");
   fileDefinitions.AddAttribute("KeyPath", "yes");
@@ -545,19 +759,10 @@ bool cmCPackWIXGenerator::CreateStartMenuShortcuts(
   fileDefinitions.EndElement("DirectoryRef");
 
   featureDefinitions.BeginElement("ComponentRef");
-  featureDefinitions.AddAttribute("Id", "SHORTCUT");
+  featureDefinitions.AddAttribute("Id", componentId);
   featureDefinitions.EndElement("ComponentRef");
 
-  directoryDefinitions.BeginElement("Directory");
-  directoryDefinitions.AddAttribute("Id", "ProgramMenuFolder");
-
-  directoryDefinitions.BeginElement("Directory");
-  directoryDefinitions.AddAttribute("Id", "PROGRAM_MENU_FOLDER");
-  const char *startMenuFolder = GetOption("CPACK_WIX_PROGRAM_MENU_FOLDER");
-  directoryDefinitions.AddAttribute("Name", startMenuFolder);
-  directoryDefinitions.EndElement("Directory");
-
-  directoryDefinitions.EndElement("Directory");
+  featureDefinitions.EndElement("FeatureRef");
 
   return true;
 }
@@ -628,7 +833,8 @@ void cmCPackWIXGenerator::AddDirectoryAndFileDefinitons(
   cmWIXSourceWriter& directoryDefinitions,
   cmWIXSourceWriter& fileDefinitions,
   cmWIXSourceWriter& featureDefinitions,
-  const std::vector<std::string>& packageExecutables)
+  const std::vector<std::string>& packageExecutables,
+  shortcut_map_t& shortcutMap)
 {
   cmsys::Directory dir;
   dir.Load(topdir.c_str());
@@ -662,7 +868,8 @@ void cmCPackWIXGenerator::AddDirectoryAndFileDefinitons(
         directoryDefinitions,
         fileDefinitions,
         featureDefinitions,
-        packageExecutables);
+        packageExecutables,
+        shortcutMap);
 
       directoryDefinitions.EndElement("Directory");
       }
@@ -922,3 +1129,18 @@ void cmCPackWIXGenerator::AddCustomFlags(
       stream << " " << QuotePath(*i);
     }
 }
+
+void cmCPackWIXGenerator::CreateStartMenuFolder(
+    cmWIXSourceWriter& directoryDefinitions)
+{
+  directoryDefinitions.BeginElement("Directory");
+  directoryDefinitions.AddAttribute("Id", "ProgramMenuFolder");
+
+  directoryDefinitions.BeginElement("Directory");
+  directoryDefinitions.AddAttribute("Id", "PROGRAM_MENU_FOLDER");
+  const char *startMenuFolder = GetOption("CPACK_WIX_PROGRAM_MENU_FOLDER");
+  directoryDefinitions.AddAttribute("Name", startMenuFolder);
+  directoryDefinitions.EndElement("Directory");
+
+  directoryDefinitions.EndElement("Directory");
+}

Source/CPack/WiX/cmCPackWIXGenerator.h

@@ -56,7 +56,7 @@ protected:
 
   virtual bool SupportsComponentInstallation() const
     {
-    return false;
+    return true;
     }
 
 private:
@@ -79,9 +79,30 @@ private:
 
   bool CreateWiXSourceFiles();
 
-  bool CreateStartMenuShortcuts(
+  bool CreateFeatureHierarchy(
+    cmWIXSourceWriter& featureDefinitions);
+
+  bool EmitFeatureForComponentGroup(
+    cmWIXSourceWriter& featureDefinitions,
+    cmCPackComponentGroup const& group);
+
+  bool EmitFeatureForComponent(
+    cmWIXSourceWriter& featureDefinitions,
+    cmCPackComponent const& component);
+
+  bool AddComponentsToFeature(
+    std::string const& rootPath,
+    std::string const& featureId,
     cmWIXSourceWriter& directoryDefinitions,
     cmWIXSourceWriter& fileDefinitions,
+    cmWIXSourceWriter& featureDefinitions,
+    shortcut_map_t& shortcutMap);
+
+  bool CreateStartMenuShortcuts(
+    std::string const& cpackComponentName,
+    std::string const& featureId,
+    shortcut_map_t& shortcutMap,
+    cmWIXSourceWriter& fileDefinitions,
     cmWIXSourceWriter& featureDefinitions);
 
   void CreateUninstallShortcut(
@@ -106,7 +127,8 @@ private:
     cmWIXSourceWriter& directoryDefinitions,
     cmWIXSourceWriter& fileDefinitions,
     cmWIXSourceWriter& featureDefinitions,
-    const std::vector<std::string>& pkgExecutables);
+    const std::vector<std::string>& pkgExecutables,
+    shortcut_map_t& shortcutMap);
 
   bool RequireOption(const std::string& name, std::string& value) const;
 
@@ -136,10 +158,11 @@ private:
   void AddCustomFlags(
     const std::string& variableName, std::ostream& stream);
 
+  void CreateStartMenuFolder(cmWIXSourceWriter& directoryDefinitions);
+
   std::vector<std::string> wixSources;
   id_map_t pathToIdMap;
   ambiguity_map_t idAmbiguityCounter;
-  shortcut_map_t shortcutMap;
 
   extension_set_t candleExtensions;
   extension_set_t lightExtensions;

Source/CPack/WiX/cmWIXSourceWriter.cxx

@@ -123,6 +123,15 @@ void cmWIXSourceWriter::AddAttribute(
   file << " " << key << "=\"" << EscapeAttributeValue(utf8) << '"';
 }
 
+void cmWIXSourceWriter::AddAttributeUnlessEmpty(
+    const std::string& key, const std::string& value)
+{
+  if(value.size())
+    {
+    AddAttribute(key, value);
+    }
+}
+
 std::string cmWIXSourceWriter::WindowsCodepageToUtf8(const std::string& value)
 {
   if(value.empty())

Source/CPack/WiX/cmWIXSourceWriter.h

@@ -40,6 +40,9 @@ public:
   void AddAttribute(
     const std::string& key, const std::string& value);
 
+  void AddAttributeUnlessEmpty(
+    const std::string& key, const std::string& value);
+
   static std::string WindowsCodepageToUtf8(const std::string& value);
 
 private:

Tests/CPackWiXGenerator/CMakeLists.txt

@@ -14,11 +14,16 @@ install(TARGETS mylib
   DESTINATION lib
   COMPONENT libraries)
 
-install(TARGETS my-libapp my-other-app
+install(TARGETS my-libapp
   RUNTIME
   DESTINATION bin
   COMPONENT applications)
 
+install(TARGETS my-other-app
+  RUNTIME
+  DESTINATION bin
+  COMPONENT applications2)
+
 install(FILES mylib.h "file with spaces.h"
   DESTINATION include
   COMPONENT headers)
@@ -56,11 +61,18 @@ cpack_add_component_group(Development
   DESCRIPTION "All of the tools you'll ever need to develop software")
 
 cpack_add_component(applications
+  REQUIRED
   DISPLAY_NAME "MyLib Application"
   DESCRIPTION "An extremely useful application that makes use of MyLib"
   GROUP Runtime
   INSTALL_TYPES Full)
 
+cpack_add_component(applications2
+  DISPLAY_NAME "MyLib Extra Application"
+  DESCRIPTION "Another extremely useful application that makes use of MyLib"
+  GROUP Runtime
+  INSTALL_TYPES Full)
+
 cpack_add_component(documentation
   DISPLAY_NAME "MyLib Documentation"
   DESCRIPTION "The extensive suite of MyLib Application documentation files"