/*
* Copyright (C) 2010, Chris Aniszczyk <caniszczyk@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.api;
import java.io.File;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.concurrent.Callable;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryBuilder;
import org.eclipse.jgit.util.SystemReader;
/**
* Create an empty git repository or reinitalize an existing one
*
* @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-init.html"
* >Git documentation about init</a>
*/
public class InitCommand implements Callable<Git> {
private File directory;
private File gitDir;
private boolean bare;
/**
* Executes the {@code Init} command.
*
* @return the newly created {@code Git} object with associated repository
*/
public Git call() throws GitAPIException {
try {
RepositoryBuilder builder = new RepositoryBuilder();
if (bare)
builder.setBare();
builder.readEnvironment();
if (gitDir != null)
builder.setGitDir(gitDir);
else
gitDir = builder.getGitDir();
if (directory != null) {
if (bare)
builder.setGitDir(directory);
else {
builder.setWorkTree(directory);
if (gitDir == null)
builder.setGitDir(new File(directory, Constants.DOT_GIT));
}
} else if (builder.getGitDir() == null) {
String dStr = SystemReader.getInstance()
.getProperty("user.dir"); //$NON-NLS-1$
if (dStr == null)
dStr = "."; //$NON-NLS-1$
File d = new File(dStr);
if (!bare)
d = new File(d, Constants.DOT_GIT);
builder.setGitDir(d);
} else {
// directory was not set but gitDir was set
if (!bare) {
String dStr = SystemReader.getInstance().getProperty(
"user.dir"); //$NON-NLS-1$
if (dStr == null)
dStr = "."; //$NON-NLS-1$
builder.setWorkTree(new File(dStr));
}
}
Repository repository = builder.build();
if (!repository.getObjectDatabase().exists())
repository.create(bare);
return new Git(repository);
} catch (IOException e) {
throw new JGitInternalException(e.getMessage(), e);
}
}
/**
* The optional directory associated with the init operation. If no
* directory is set, we'll use the current directory
*
* @param directory
* the directory to init to
* @return this instance
* @throws IllegalStateException
* if the combination of directory, gitDir and bare is illegal.
* E.g. if for a non-bare repository directory and gitDir point
* to the same directory of if for a bare repository both
* directory and gitDir are specified
*/
public InitCommand setDirectory(File directory)
throws IllegalStateException {
validateDirs(directory, gitDir, bare);
this.directory = directory;
return this;
}
/**
* @param gitDir
* the repository meta directory
* @return this instance
* @throws IllegalStateException
* if the combination of directory, gitDir and bare is illegal.
* E.g. if for a non-bare repository directory and gitDir point
* to the same directory of if for a bare repository both
* directory and gitDir are specified
* @since 3.6
*/
public InitCommand setGitDir(File gitDir)
throws IllegalStateException {
validateDirs(directory, gitDir, bare);
this.gitDir = gitDir;
return this;
}
private static void validateDirs(File directory, File gitDir, boolean bare)
throws IllegalStateException {
if (directory != null) {
if (bare) {
if (gitDir != null && !gitDir.equals(directory))
throw new IllegalStateException(MessageFormat.format(
JGitText.get().initFailedBareRepoDifferentDirs,
gitDir, directory));
} else {
if (gitDir != null && gitDir.equals(directory))
throw new IllegalStateException(MessageFormat.format(
JGitText.get().initFailedNonBareRepoSameDirs,
gitDir, directory));
}
}
}
/**
* @param bare
* whether the repository is bare or not
* @throws IllegalStateException
* if the combination of directory, gitDir and bare is illegal.
* E.g. if for a non-bare repository directory and gitDir point
* to the same directory of if for a bare repository both
* directory and gitDir are specified
* @return this instance
*/
public InitCommand setBare(boolean bare) {
validateDirs(directory, gitDir, bare);
this.bare = bare;
return this;
}
}