Add component support to DragNDrop generator.

Source/CPack/cmCPackBundleGenerator.cxx

@@ -165,5 +165,10 @@ int cmCPackBundleGenerator::PackageFiles()
     cmSystemTools::SetPermissions(command_target.str().c_str(), 0777);
     }
 
-  return this->CreateDMG();
+  return this->CreateDMG(toplevel, packageFileNames[0]);
+}
+
+bool cmCPackBundleGenerator::SupportsComponentInstallation() const
+{
+  return false;
 }

Source/CPack/cmCPackBundleGenerator.h

@@ -32,6 +32,7 @@ protected:
   virtual int InitializeInternal();
   virtual const char* GetPackagingInstallPrefix();
   int PackageFiles();
+  bool SupportsComponentInstallation() const;
 
   std::string InstallPrefix;
 };

Source/CPack/cmCPackDragNDropGenerator.cxx

@@ -51,6 +51,8 @@ static const char* SLASTREnglish =
 //----------------------------------------------------------------------
 cmCPackDragNDropGenerator::cmCPackDragNDropGenerator()
 {
+  // default to one package file for components
+  this->componentPackageMethod = ONE_PACKAGE;
 }
 
 //----------------------------------------------------------------------
@@ -106,8 +108,55 @@ const char* cmCPackDragNDropGenerator::GetOutputExtension()
 //----------------------------------------------------------------------
 int cmCPackDragNDropGenerator::PackageFiles()
 {
+  // gather which directories to make dmg files for
+  // multiple directories occur if packaging components or groups separately
 
-  return this->CreateDMG();
+  // monolith
+  if(this->Components.empty())
+    {
+    return this->CreateDMG(toplevel, packageFileNames[0]);
+    }
+
+  // component install
+  std::vector<std::string> package_files;
+
+  std::map<std::string, cmCPackComponent>::iterator compIt;
+  for (compIt=this->Components.begin();
+       compIt!=this->Components.end(); ++compIt )
+    {
+    std::string name = GetComponentInstallDirNameSuffix(compIt->first);
+    package_files.push_back(name);
+    }
+  std::sort(package_files.begin(), package_files.end());
+  package_files.erase(std::unique(package_files.begin(), package_files.end()), package_files.end());
+
+
+  // loop to create dmg files
+  packageFileNames.clear();
+  for(size_t i=0; i<package_files.size(); i++)
+    {
+    std::string full_package_name = std::string(toplevel) + std::string("/");
+    if(package_files[i] == "ALL_IN_ONE")
+      {
+      full_package_name += this->GetOption("CPACK_PACKAGE_FILE_NAME");
+      }
+    else
+      {
+      full_package_name += package_files[i];
+      }
+    full_package_name += std::string(GetOutputExtension());
+    packageFileNames.push_back(full_package_name);
+
+    std::string src_dir = toplevel;
+    src_dir += "/";
+    src_dir += package_files[i];
+
+    if(0 == this->CreateDMG(src_dir, full_package_name))
+      {
+      return 0;
+      }
+    }
+  return 1;
 }
 
 //----------------------------------------------------------------------
@@ -159,7 +208,7 @@ bool cmCPackDragNDropGenerator::RunCommand(cmOStringStream& command,
 }
 
 //----------------------------------------------------------------------
-int cmCPackDragNDropGenerator::CreateDMG()
+int cmCPackDragNDropGenerator::CreateDMG(const std::string& src_dir, const std::string& output_file)
 {
   // Get optional arguments ...
   const std::string cpack_package_icon = this->GetOption("CPACK_PACKAGE_ICON") 
@@ -197,7 +246,7 @@ int cmCPackDragNDropGenerator::CreateDMG()
   // The staging directory contains everything that will end-up inside the
   // final disk image ...
   cmOStringStream staging;
-  staging << toplevel;
+  staging << src_dir;
 
   // Add a symlink to /Applications so users can drag-and-drop the bundle
   // into it
@@ -472,7 +521,7 @@ int cmCPackDragNDropGenerator::CreateDMG()
   final_image_command << cpack_dmg_format;
   final_image_command << " -imagekey";
   final_image_command << " zlib-level=9";
-  final_image_command << " -o \"" << packageFileNames[0] << "\"";
+  final_image_command << " -o \"" << output_file << "\"";
   
   if(!this->RunCommand(final_image_command))
     {
@@ -485,3 +534,41 @@ int cmCPackDragNDropGenerator::CreateDMG()
 
   return 1;
 }
+
+bool cmCPackDragNDropGenerator::SupportsComponentInstallation() const
+{
+  return true;
+}
+
+std::string cmCPackDragNDropGenerator::GetComponentInstallDirNameSuffix(const std::string& componentName)
+{
+  // we want to group components together that go in the same dmg package
+  std::string package_file_name = this->GetOption("CPACK_PACKAGE_FILE_NAME");
+
+  // we have 3 mutually exclusive modes to work in
+  // 1. all components in one package
+  // 2. each group goes in its own package with left over components in their own package
+  // 3. ignore groups - if grouping is defined, it is ignored and each component goes in its own package
+
+  if(this->componentPackageMethod == ONE_PACKAGE)
+    {
+    return "ALL_IN_ONE";
+    }
+
+  if(this->componentPackageMethod == ONE_PACKAGE_PER_GROUP)
+    {
+    // We have to find the name of the COMPONENT GROUP
+    // the current COMPONENT belongs to.
+    std::string groupVar = "CPACK_COMPONENT_" + cmSystemTools::UpperCase(componentName) + "_GROUP";
+    const char* _groupName = GetOption(groupVar.c_str());
+    if (_groupName)
+      {
+      std::string groupName = _groupName;
+
+      groupName = GetComponentPackageFileName(package_file_name, groupName, true);
+      return groupName;
+      }
+    }
+
+  return GetComponentPackageFileName(package_file_name, componentName, false);
+}

Source/CPack/cmCPackDragNDropGenerator.h

@@ -30,11 +30,15 @@ protected:
   virtual int InitializeInternal();
   virtual const char* GetOutputExtension();
   int PackageFiles();
+  bool SupportsComponentInstallation() const;
+
 
   bool CopyFile(cmOStringStream& source, cmOStringStream& target);
   bool RunCommand(cmOStringStream& command, std::string* output = 0);
 
-  int CreateDMG();
+  std::string GetComponentInstallDirNameSuffix(const std::string& componentName);
+
+  int CreateDMG(const std::string& src_dir, const std::string& output_file);
 
   std::string InstallPrefix;
 };