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@ -1,114 +0,0 @@ |
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/* |
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Licensed to the Apache Software Foundation (ASF) under one |
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or more contributor license agreements. See the NOTICE file |
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distributed with this work for additional information |
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regarding copyright ownership. The ASF licenses this file |
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to you under the Apache License, Version 2.0 (the |
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"License"); you may not use this file except in compliance |
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with the License. You may obtain a copy of the License at |
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https://www.apache.org/licenses/LICENSE-2.0 |
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Unless required by applicable law or agreed to in writing, |
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software distributed under the License is distributed on an |
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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KIND, either express or implied. See the License for the |
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specific language governing permissions and limitations |
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under the License. |
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*/ |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.net.URL; |
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import java.nio.channels.Channels; |
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import java.nio.channels.ReadableByteChannel; |
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import java.util.Properties; |
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public class MavenWrapperDownloader { |
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/** |
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* Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. |
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*/ |
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private static final String DEFAULT_DOWNLOAD_URL = |
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"https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.2/maven-wrapper-0.4.2.jar"; |
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/** |
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* Path to the maven-wrapper.properties file, which might contain a downloadUrl property to |
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* use instead of the default one. |
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*/ |
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private static final String MAVEN_WRAPPER_PROPERTIES_PATH = |
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".mvn/wrapper/maven-wrapper.properties"; |
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/** |
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* Path where the maven-wrapper.jar will be saved to. |
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*/ |
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private static final String MAVEN_WRAPPER_JAR_PATH = |
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".mvn/wrapper/maven-wrapper.jar"; |
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/** |
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* Name of the property which should be used to override the default download url for the wrapper. |
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*/ |
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private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl"; |
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public static void main(String args[]) { |
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System.out.println("- Downloader started"); |
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File baseDirectory = new File(args[0]); |
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System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath()); |
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// If the maven-wrapper.properties exists, read it and check if it contains a custom |
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// wrapperUrl parameter. |
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File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH); |
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String url = DEFAULT_DOWNLOAD_URL; |
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if(mavenWrapperPropertyFile.exists()) { |
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FileInputStream mavenWrapperPropertyFileInputStream = null; |
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try { |
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mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile); |
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Properties mavenWrapperProperties = new Properties(); |
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mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); |
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url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url); |
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} catch (IOException e) { |
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System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'"); |
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} finally { |
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try { |
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if(mavenWrapperPropertyFileInputStream != null) { |
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mavenWrapperPropertyFileInputStream.close(); |
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} |
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} catch (IOException e) { |
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// Ignore ... |
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} |
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} |
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} |
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System.out.println("- Downloading from: : " + url); |
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File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); |
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if(!outputFile.getParentFile().exists()) { |
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if(!outputFile.getParentFile().mkdirs()) { |
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System.out.println( |
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"- ERROR creating output direcrory '" + outputFile.getParentFile().getAbsolutePath() + "'"); |
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} |
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} |
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System.out.println("- Downloading to: " + outputFile.getAbsolutePath()); |
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try { |
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downloadFileFromURL(url, outputFile); |
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System.out.println("Done"); |
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System.exit(0); |
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} catch (Throwable e) { |
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System.out.println("- Error downloading"); |
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e.printStackTrace(); |
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System.exit(1); |
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} |
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} |
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private static void downloadFileFromURL(String urlString, File destination) throws Exception { |
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URL website = new URL(urlString); |
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ReadableByteChannel rbc; |
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rbc = Channels.newChannel(website.openStream()); |
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FileOutputStream fos = new FileOutputStream(destination); |
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fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); |
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fos.close(); |
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rbc.close(); |
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} |
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} |