/*
* Copyright (C) 2010, Google Inc.
* 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
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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package org.eclipse.jgit.storage.file;
import java.io.File;
import java.io.IOException;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.BaseRepositoryBuilder;
/**
* Constructs a {@link FileRepository}.
* <p>
* Applications must set one of {@link #setGitDir(File)} or
* {@link #setWorkTree(File)}, or use {@link #readEnvironment()} or
* {@link #findGitDir()} in order to configure the minimum property set
* necessary to open a repository.
* <p>
* Single repository applications trying to be compatible with other Git
* implementations are encouraged to use a model such as:
*
* <pre>
* new FileRepositoryBuilder() //
* .setGitDir(gitDirArgument) // --git-dir if supplied, no-op if null
* .readEnviroment() // scan environment GIT_* variables
* .findGitDir() // scan up the file system tree
* .build()
* </pre>
*/
public class FileRepositoryBuilder extends
BaseRepositoryBuilder<FileRepositoryBuilder, FileRepository> {
/**
* Create a repository matching the configuration in this builder.
* <p>
* If an option was not set, the build method will try to default the option
* based on other options. If insufficient information is available, an
* exception is thrown to the caller.
*
* @return a repository matching this configuration.
* @throws IllegalArgumentException
* insufficient parameters were set.
* @throws IOException
* the repository could not be accessed to configure the rest of
* the builder's parameters.
*/
@Override
public FileRepository build() throws IOException {
FileRepository repo = new FileRepository(setup());
if (isMustExist() && !repo.getObjectDatabase().exists())
throw new RepositoryNotFoundException(getGitDir());
return repo;
}
}