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
} else {
						newDescription = IDEWorkbenchPlugin
								.getPluginWorkspace().loadProjectDescription(
										path);
					}
				}
			} catch (CoreException e) {
				
			} catch (IOException e) {
				
			}
			if (newDescription == null) {
				this.description = null;
				projectName = ""; 
			} else {
				this.description = newDescription;
				projectName = this.description.getName();
			}
		}
		/**
		 * Returns whether the given project description file path is in the
		 * default location for a project
		 * 
		 * @param path
		 *            The path to examine
		 * @return Whether the given path is the default location for a project
		 */
		private boolean isDefaultLocation(IPath path) {