Method Build

libraries/lib-import-export/Export.cpp:84–133

}

ExportTask ExportTaskBuilder::Build(AudacityProject& project)
{
   //File rename stuff should be moved out to somewhere else...
   auto filename = mFileName;

   //For safety, if the file already exists we use temporary filename
   //and replace original one export succeeded
   int suffix = 0;
   while (filename.FileExists()) {
      filename.SetName(mFileName.GetName() +
                        wxString::Format(wxT("%d"), suffix));
      suffix++;
   }

   auto processor = mPlugin->CreateProcessor(mFormat);
   if(!processor->Initialize(project,
      mParameters,
      mFileName.GetFullPath(),
      mT0, mT1, mSelectedOnly,
      mSampleRate, mMixerSpec ? mMixerSpec->GetNumChannels() : mNumChannels,
      mMixerSpec,
      mTags))
   {
      return ExportTask([](ExportProcessorDelegate&){ return ExportResult::Cancelled; });
   }

   return ExportTask([actualFilename = filename,
      targetFilename = mFileName,
      processor = std::shared_ptr<ExportProcessor>(processor.release())]
      (ExportProcessorDelegate& delegate)
      {
         auto result = ExportResult::Error;
         auto cleanup = finally( [&] {
            if(result == ExportResult::Success || result == ExportResult::Stopped)
            {
               if (actualFilename != targetFilename)
               {
                  //may fail...
                  ::wxRenameFile(actualFilename.GetFullPath(),
                     targetFilename.GetFullPath(),
                     true);
               }
            }
            else
               ::wxRemoveFile(actualFilename.GetFullPath());
         } );
         result = processor->Process(delegate);
         return result;
      });
}

void ShowDiskFullExportErrorDialog(const wxFileNameWrapper &fileName)
{