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Camel JBang Console

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.camel.jbang.console;

import java.io.File;
import java.io.FileInputStream;

import org.apache.camel.util.IOHelper;

public final class VersionHelper {

    private VersionHelper() {
    }

    public static String getJBangVersion() {
        try {
            File file = new File(System.getProperty("user.home"), ".jbang/cache/version.txt");
            if (file.exists() && file.isFile()) {
                FileInputStream fis = new FileInputStream(file);
                String text = IOHelper.loadText(fis);
                IOHelper.close(fis);
                text = text.trim();
                return text;
            }
        } catch (Exception e) {
            // ignore
        }
        return null;
    }

}