Bug 152919 [Import/Export] import existing project w/ copy is inefficient
I just tried to import some existing projects and selected "copy projects into workspace". After a long time (sorry, no measurements) I had to cancel the request, because I was running out of disk space. I had just succeeded in importing the first project (jdt core), which takes approx. 80MB disk space, but at that time the previously blank workspace consumed additional 300MB mainly in: .metadata/.plugins/org.eclipse.core.resources/.history/ Is this operation recording undo-information for each single file imported? Unless I made something really stupid, this operation seems not to be usable for large projects.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
if (path.segmentCount() < 2)
				return false;
			return path.removeLastSegments(2).toFile().equals(
					Platform.getLocation().toFile());
		}
		/**
		 * Get the name of the project
		 * 
		 * @return String
		 */
		public String getProjectName() {
			return projectName;
		}
	}
	
	private final static String STORE_COPY_PROJECT_ID = "WizardProjectsImportPage.STORE_COPY_PROJECT_ID"; 
	private final static String STORE_ARCHIVE_SELECTED = "WizardProjectsImportPage.STORE_ARCHIVE_SELECTED"; 
	private Text directoryPathField;
	private CheckboxTreeViewer projectsList;
	private Button copyCheckbox;
	private boolean copyFiles = false;
	private ProjectRecord[] selectedProjects = new ProjectRecord[0];
	
	
	private static String previouslyBrowsedDirectory = ""; 
	
	
	private static String previouslyBrowsedArchive = ""; 
	private Button projectFromDirectoryRadio;
	private Button projectFromArchiveRadio;