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- /*
- * Copyright (C) 2008-2009, Google Inc.
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
- * 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.pgm.opt;
-
- import java.io.File;
- import java.io.IOException;
- import java.text.MessageFormat;
-
- import org.eclipse.jgit.dircache.DirCache;
- import org.eclipse.jgit.dircache.DirCacheIterator;
- import org.eclipse.jgit.errors.IncorrectObjectTypeException;
- import org.eclipse.jgit.errors.MissingObjectException;
- import org.eclipse.jgit.lib.ObjectId;
- import org.eclipse.jgit.lib.ObjectReader;
- import org.eclipse.jgit.pgm.internal.CLIText;
- import org.eclipse.jgit.treewalk.AbstractTreeIterator;
- import org.eclipse.jgit.treewalk.CanonicalTreeParser;
- import org.eclipse.jgit.treewalk.FileTreeIterator;
- import org.eclipse.jgit.treewalk.WorkingTreeOptions;
- import org.eclipse.jgit.util.FS;
- import org.kohsuke.args4j.CmdLineException;
- import org.kohsuke.args4j.CmdLineParser;
- import org.kohsuke.args4j.OptionDef;
- import org.kohsuke.args4j.spi.OptionHandler;
- import org.kohsuke.args4j.spi.Parameters;
- import org.kohsuke.args4j.spi.Setter;
-
- /**
- * Custom argument handler
- * {@link org.eclipse.jgit.treewalk.AbstractTreeIterator} from string values.
- * <p>
- * Assumes the parser has been initialized with a Repository.
- */
- public class AbstractTreeIteratorHandler extends
- OptionHandler<AbstractTreeIterator> {
- private final org.eclipse.jgit.pgm.opt.CmdLineParser clp;
-
- /**
- * Create a new handler for the command name.
- * <p>
- * This constructor is used only by args4j.
- *
- * @param parser
- * a {@link org.kohsuke.args4j.CmdLineParser} object.
- * @param option
- * a {@link org.kohsuke.args4j.OptionDef} object.
- * @param setter
- * a {@link org.kohsuke.args4j.spi.Setter} object.
- */
- public AbstractTreeIteratorHandler(final CmdLineParser parser,
- final OptionDef option,
- final Setter<? super AbstractTreeIterator> setter) {
- super(parser, option, setter);
- clp = (org.eclipse.jgit.pgm.opt.CmdLineParser) parser;
- }
-
- /** {@inheritDoc} */
- @Override
- public int parseArguments(final Parameters params) throws CmdLineException {
- final String name = params.getParameter(0);
-
- if (new File(name).isDirectory()) {
- setter.addValue(new FileTreeIterator(
- new File(name),
- FS.DETECTED,
- clp.getRepository().getConfig().get(WorkingTreeOptions.KEY)));
- return 1;
- }
-
- if (new File(name).isFile()) {
- final DirCache dirc;
- try {
- dirc = DirCache.read(new File(name), FS.DETECTED);
- } catch (IOException e) {
- throw new CmdLineException(clp, MessageFormat.format(CLIText.get().notAnIndexFile, name), e);
- }
- setter.addValue(new DirCacheIterator(dirc));
- return 1;
- }
-
- final ObjectId id;
- try {
- id = clp.getRepository().resolve(name);
- } catch (IOException e) {
- throw new CmdLineException(clp, CLIText.format(e.getMessage()));
- }
- if (id == null)
- throw new CmdLineException(clp,
- CLIText.format(CLIText.get().notATree), name);
-
- final CanonicalTreeParser p = new CanonicalTreeParser();
- try (ObjectReader curs = clp.getRepository().newObjectReader()) {
- p.reset(curs, clp.getRevWalk().parseTree(id));
- } catch (MissingObjectException e) {
- throw new CmdLineException(clp,
- CLIText.format(CLIText.get().notATree), name);
- } catch (IncorrectObjectTypeException e) {
- throw new CmdLineException(clp,
- CLIText.format(CLIText.get().notATree), name);
- } catch (IOException e) {
- throw new CmdLineException(clp,
- CLIText.format(CLIText.get().cannotReadBecause), name,
- e.getMessage());
- }
-
- setter.addValue(p);
- return 1;
- }
-
- /** {@inheritDoc} */
- @Override
- public String getDefaultMetaVariable() {
- return CLIText.get().metaVar_treeish;
- }
- }
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