@Option(name = "-p", usage = "usage_showPatch")
	boolean showPatch;

	@Option(name = "-M", usage = "usage_detectRenames")
	private Boolean detectRenames;

	@Option(name = "--no-renames", usage = "usage_noRenames")
	void noRenames(@SuppressWarnings("unused") boolean on) {
		detectRenames = Boolean.FALSE;
	}

	@Option(name = "-l", usage = "usage_renameLimit")
	private Integer renameLimit;

	@Option(name = "--name-status", usage = "usage_nameStatus")
	void nameAndStatusOnly(boolean on) {
		if (showNameOnly) {
			throw new IllegalArgumentException(
					CLIText.get().cannotUseNameStatusOnlyAndNameOnly);
		}
		showNameAndStatusOnly = on;
	}

	@Option(name = "--name-only", usage = "usage_nameOnly")
	void nameOnly(boolean on) {
		if (showNameAndStatusOnly) {
			throw new IllegalArgumentException(
					CLIText.get().cannotUseNameStatusOnlyAndNameOnly);
		}
		showNameOnly = on;
	}

	@Option(name = "--ignore-space-at-eol")
	void ignoreSpaceAtEol(@SuppressWarnings("unused") boolean on) {
		diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_TRAILING);
	}

	@Option(name = "--ignore-leading-space")
	void ignoreLeadingSpace(@SuppressWarnings("unused") boolean on) {
		diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_LEADING);
	}

	@Option(name = "-b", aliases = { "--ignore-space-change" })
	void ignoreSpaceChange(@SuppressWarnings("unused") boolean on) {
		diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_CHANGE);
	}

	@Option(name = "-w", aliases = { "--ignore-all-space" })
	void ignoreAllSpace(@SuppressWarnings("unused") boolean on) {
		diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_ALL);
	}

	@Option(name = "-U", aliases = { "--unified" }, metaVar = "metaVar_linesOfContext")
	void unified(int lines) {
		diffFmt.setContext(lines);
	}

	@Option(name = "--abbrev", metaVar = "metaVar_n")
	void abbrev(int lines) {
		diffFmt.setAbbreviationLength(lines);
	}

	@Option(name = "--full-index")
	void abbrev(@SuppressWarnings("unused") boolean on) {
		diffFmt.setAbbreviationLength(Constants.OBJECT_ID_STRING_LENGTH);
	}

	@Option(name = "--src-prefix", usage = "usage_srcPrefix")
	void sourcePrefix(String path) {
		diffFmt.setOldPrefix(path);
	}

	@Option(name = "--dst-prefix", usage = "usage_dstPrefix")
	void dstPrefix(String path) {
		diffFmt.setNewPrefix(path);
	}

	@Option(name = "--no-prefix", usage = "usage_noPrefix")
	void noPrefix(@SuppressWarnings("unused") boolean on) {
		diffFmt.setOldPrefix(""); //$NON-NLS-1$
		diffFmt.setNewPrefix(""); //$NON-NLS-1$
	}

if (cached) {
				if (oldTree == null) {
					ObjectId head = db.resolve(HEAD + "^{tree}"); //$NON-NLS-1$
					if (head == null) {
						die(MessageFormat.format(CLIText.get().notATree, HEAD));
					}
					CanonicalTreeParser p = new CanonicalTreeParser();
					try (ObjectReader reader = db.newObjectReader()) {
						p.reset(reader, head);
					}
					oldTree = p;
				}
				newTree = new DirCacheIterator(db.readDirCache());
			} else if (oldTree == null) {
				oldTree = new DirCacheIterator(db.readDirCache());
				newTree = new FileTreeIterator(db);
			} else if (newTree == null) {
				newTree = new FileTreeIterator(db);
			}

			TextProgressMonitor pm = new TextProgressMonitor(errw);
			pm.setDelayStart(2, TimeUnit.SECONDS);
			diffFmt.setProgressMonitor(pm);
			diffFmt.setPathFilter(pathFilter);

if (gitDirs.isEmpty()) {
			RepositoryBuilder rb = new RepositoryBuilder() //
					.setGitDir(new File(gitdir)) //
					.readEnvironment() //
					.findGitDir();
			if (rb.getGitDir() == null)
				throw die(CLIText.get().cantFindGitDirectory);
			gitDirs.add(rb.getGitDir());
		}

		for (File dir : gitDirs) {
			RepositoryBuilder rb = new RepositoryBuilder();
			if (RepositoryCache.FileKey.isGitRepository(dir, FS.DETECTED))
				rb.setGitDir(dir);
			else
				rb.findGitDir(dir);

			try (Repository repo = rb.build()) {
				run(repo);
			}
		}
	}

	private void run(Repository repo) throws Exception {
		List<Test> all = init();

private BooleanTriState prompt = BooleanTriState.UNSET;

	@Option(name = "--prompt", usage = "usage_prompt")
	void setPrompt(@SuppressWarnings("unused") boolean on) {
		prompt = BooleanTriState.TRUE;
	}

	@Option(name = "--no-prompt", aliases = { "-y" }, usage = "usage_noPrompt")
	void noPrompt(@SuppressWarnings("unused") boolean on) {
		prompt = BooleanTriState.FALSE;
	}

	@Option(name = "--tool-help", usage = "usage_toolHelp")
	private boolean toolHelp;

	private boolean gui = false;

	@Option(name = "--gui", aliases = { "-g" }, usage = "usage_DiffGuiTool")