/*
    * Copyright (C) 2008, Google Inc.
    * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
   */
  
  package org.eclipse.jgit.pgm.debug;
  
  import static java.lang.Integer.valueOf;
  
  import java.io.IOException;
  import java.text.MessageFormat;
  
  import org.eclipse.jgit.dircache.DirCache;
  import org.eclipse.jgit.dircache.DirCacheTree;
  import org.eclipse.jgit.pgm.Command;
  import org.eclipse.jgit.pgm.TextBuiltin;
  import org.eclipse.jgit.pgm.internal.CLIText;
  
  @Command(usage = "usage_ShowCacheTree")
  class ShowCacheTree extends TextBuiltin {
  	/** {@inheritDoc} */
  	@Override
  	protected void run() throws Exception {
  		final DirCache cache = db.readDirCache();
  		final DirCacheTree tree = cache.getCacheTree(false);
  		if (tree == null)
  			throw die(CLIText.get().noTREESectionInIndex);
  		show(tree);
  	}
  
  	private void show(DirCacheTree tree) throws IOException {
  		outw.println(MessageFormat.format(CLIText.get().cacheTreePathInfo,
  				tree.getPathString(), valueOf(tree.getEntrySpan()),
  				valueOf(tree.getChildCount())));
  
  		for (int i = 0; i < tree.getChildCount(); i++)
  			show(tree.getChild(i));
  	}
  }