GlobalAttributesNode.java

/*
 * Copyright (C) 2014, Arthur Daussy <arthur.daussy@obeo.fr>
 * Copyright (C) 2015, Christian Halstrick <christian.halstrick@sap.com> 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.internal.storage.file;

import java.io.File;
import java.io.IOException;

import org.eclipse.jgit.attributes.AttributesNode;
import org.eclipse.jgit.lib.CoreConfig;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.util.FS;

/**
 * Attribute node loaded from global system-wide file.
 */
public class GlobalAttributesNode extends AttributesNode {
    final Repository repository;

    /**
     * Constructor for GlobalAttributesNode.
     *
     * @param repository
     *            the {@link org.eclipse.jgit.lib.Repository}.
     */
    public GlobalAttributesNode(Repository repository) {
        this.repository = repository;
    }

    /**
     * Load the attributes node
     *
     * @return the attributes node
     * @throws java.io.IOException
     */
    public AttributesNode load() throws IOException {
        AttributesNode r = new AttributesNode();

        FS fs = repository.getFS();
        String path = repository.getConfig().get(CoreConfig.KEY)
                .getAttributesFile();
        if (path != null) {
            File attributesFile;
            if (path.startsWith("~/")) { //$NON-NLS-1$
                attributesFile = fs.resolve(fs.userHome(),
                        path.substring(2));
            } else {
                attributesFile = fs.resolve(null, path);
            }
            FileRepository.AttributesNodeProviderImpl.loadRulesFromFile(r, attributesFile);
        }
        return r.getRules().isEmpty() ? null : r;
    }
}