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
}
			}
		});
		Dialog.applyDialogFont(refresh);
		setButtonLayoutData(refresh);
	}
	/**
	 * Create the area where you select the root directory for the projects.
	 * 
	 * @param workArea
	 *            Composite
	 */
	private void createProjectsRoot(Composite workArea) {
		
		Composite projectGroup = new Composite(workArea, SWT.NONE);
		GridLayout layout = new GridLayout();
		layout.numColumns = 3;
		layout.makeColumnsEqualWidth = false;
		layout.marginWidth = 0;
		projectGroup.setLayout(layout);
		projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		
		projectFromDirectoryRadio = new Button(projectGroup, SWT.RADIO);
		projectFromDirectoryRadio
				.setText(DataTransferMessages.WizardProjectsImportPage_RootSelectTitle);
		
		this.directoryPathField = new Text(projectGroup, SWT.BORDER);
		this.directoryPathField.setLayoutData(new GridData(
				GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL));