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- /*
- * Copyright (C) 2008, Google Inc.
- * Copyright (C) 2007-2010, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
- * Copyright (C) 2009, Tor Arne Vestbø <torarnv@gmail.com>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.treewalk;
-
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStream;
-
- import org.eclipse.jgit.errors.IncorrectObjectTypeException;
- import org.eclipse.jgit.lib.Constants;
- import org.eclipse.jgit.lib.FileMode;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.util.FS;
-
- /**
- * Working directory iterator for standard Java IO.
- * <p>
- * This iterator uses the standard <code>java.io</code> package to read the
- * specified working directory as part of a {@link TreeWalk}.
- */
- public class FileTreeIterator extends WorkingTreeIterator {
- private final File directory;
-
- /**
- * Create a new iterator to traverse the given directory and its children.
- *
- * @param root
- * the starting directory. This directory should correspond to
- * the root of the repository.
- */
- public FileTreeIterator(final File root) {
- directory = root;
- init(entries());
- }
-
- /**
- * Create a new iterator to traverse a subdirectory.
- *
- * @param p
- * the parent iterator we were created from.
- * @param root
- * the subdirectory. This should be a directory contained within
- * the parent directory.
- */
- protected FileTreeIterator(final FileTreeIterator p, final File root) {
- super(p);
- directory = root;
- init(entries());
- }
-
- @Override
- public AbstractTreeIterator createSubtreeIterator(final Repository repo)
- throws IncorrectObjectTypeException, IOException {
- return new FileTreeIterator(this, ((FileEntry) current()).file);
- }
-
- private Entry[] entries() {
- final File[] all = directory.listFiles();
- if (all == null)
- return EOF;
- final Entry[] r = new Entry[all.length];
- for (int i = 0; i < r.length; i++)
- r[i] = new FileEntry(all[i]);
- return r;
- }
-
- /**
- * Wrapper for a standard Java IO file
- */
- static public class FileEntry extends Entry {
- final File file;
-
- private final FileMode mode;
-
- private long length = -1;
-
- private long lastModified;
-
- FileEntry(final File f) {
- file = f;
-
- if (f.isDirectory()) {
- if (new File(f, Constants.DOT_GIT).isDirectory())
- mode = FileMode.GITLINK;
- else
- mode = FileMode.TREE;
- } else if (FS.INSTANCE.canExecute(file))
- mode = FileMode.EXECUTABLE_FILE;
- else
- mode = FileMode.REGULAR_FILE;
- }
-
- @Override
- public FileMode getMode() {
- return mode;
- }
-
- @Override
- public String getName() {
- return file.getName();
- }
-
- @Override
- public long getLength() {
- if (length < 0)
- length = file.length();
- return length;
- }
-
- @Override
- public long getLastModified() {
- if (lastModified == 0)
- lastModified = file.lastModified();
- return lastModified;
- }
-
- @Override
- public InputStream openInputStream() throws IOException {
- return new FileInputStream(file);
- }
-
- /**
- * Get the underlying file of this entry.
- *
- * @return the underlying file of this entry
- */
- public File getFile() {
- return file;
- }
- }
- }
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