tikhomirov@2: /**
tikhomirov@2:  * Copyright (c) 2010 Artem Tikhomirov 
tikhomirov@2:  */
tikhomirov@2: package com.tmate.hgkit.fs;
tikhomirov@2: 
tikhomirov@2: import java.io.File;
tikhomirov@2: 
tikhomirov@2: import com.tmate.hgkit.ll.HgRepository;
tikhomirov@2: import com.tmate.hgkit.ll.LocalHgRepo;
tikhomirov@2: 
tikhomirov@2: /**
tikhomirov@2:  * @author artem
tikhomirov@2:  */
tikhomirov@2: public class RepositoryLookup {
tikhomirov@2: 	
tikhomirov@2: 	public HgRepository detect(String[] commandLineArgs) throws Exception {
tikhomirov@2: 		if (commandLineArgs.length == 0) {
tikhomirov@2: 			return detectFromWorkingDir();
tikhomirov@2: 		}
tikhomirov@2: 		return detect(commandLineArgs[0]);
tikhomirov@2: 	}
tikhomirov@2: 
tikhomirov@2: 	public HgRepository detectFromWorkingDir() throws Exception {
tikhomirov@2: 		return detect(System.getProperty("user.dir"));
tikhomirov@2: 	}
tikhomirov@2: 
tikhomirov@2: 	public HgRepository detect(String location) throws Exception /*FIXME Exception type, RepoInitException? */ {
tikhomirov@2: 		File dir = new File(location);
tikhomirov@2: 		File repository;
tikhomirov@2: 		do {
tikhomirov@2: 			repository = new File(dir, ".hg");
tikhomirov@2: 			if (repository.exists() && repository.isDirectory()) {
tikhomirov@2: 				break;
tikhomirov@2: 			}
tikhomirov@2: 			repository = null;
tikhomirov@2: 			dir = dir.getParentFile();
tikhomirov@2: 			
tikhomirov@2: 		} while(dir != null);
tikhomirov@2: 		if (repository == null) {
tikhomirov@2: 			return new LocalHgRepo(location);
tikhomirov@2: 		}
tikhomirov@2: 		return new LocalHgRepo(repository);
tikhomirov@2: 	}
tikhomirov@2: }