118 lines
3.8 KiB
Java
Executable File
118 lines
3.8 KiB
Java
Executable File
|
|
/*
|
|
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
|
|
|
|
https://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.
|
|
*/
|
|
|
|
import java.util.Properties;
|
|
|
|
public class MavenWrapperDownloader {
|
|
|
|
/**
|
|
* Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is
|
|
* provided.
|
|
*/
|
|
private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar";
|
|
|
|
/**
|
|
* Path to the maven-wrapper.properties file, which might contain a downloadUrl
|
|
* property to use instead of the default one.
|
|
*/
|
|
private static final String MAVEN_WRAPPER_PROPERTIES_PATH = ".mvn/wrapper/maven-wrapper.properties";
|
|
|
|
/**
|
|
* Path where the maven-wrapper.jar will be saved to.
|
|
*/
|
|
private static final String MAVEN_WRAPPER_JAR_PATH = ".mvn/wrapper/maven-wrapper.jar";
|
|
|
|
/**
|
|
* Name of the property which should be used to override the default download url for
|
|
* the wrapper.
|
|
*/
|
|
private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
|
|
|
|
public static void main(String args[]) {
|
|
System.out.println("- Downloader started");
|
|
File baseDirectory = new File(args[0]);
|
|
System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
|
|
|
|
// If the maven-wrapper.properties exists, read it and check if it contains a
|
|
// custom
|
|
// wrapperUrl parameter.
|
|
File mavenWrapperPropertyFile = new File(baseDirectory,
|
|
MAVEN_WRAPPER_PROPERTIES_PATH);
|
|
String url = DEFAULT_DOWNLOAD_URL;
|
|
if (mavenWrapperPropertyFile.exists()) {
|
|
FileInputStream mavenWrapperPropertyFileInputStream = null;
|
|
try {
|
|
mavenWrapperPropertyFileInputStream = new FileInputStream(
|
|
mavenWrapperPropertyFile);
|
|
Properties mavenWrapperProperties = new Properties();
|
|
mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
|
|
url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
|
|
}
|
|
catch (IOException e) {
|
|
System.out.println(
|
|
"- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
|
|
}
|
|
finally {
|
|
try {
|
|
if (mavenWrapperPropertyFileInputStream != null) {
|
|
mavenWrapperPropertyFileInputStream.close();
|
|
}
|
|
}
|
|
catch (IOException e) {
|
|
// Ignore ...
|
|
}
|
|
}
|
|
}
|
|
System.out.println("- Downloading from: : " + url);
|
|
|
|
File outputFile = new File(baseDirectory.getAbsolutePath(),
|
|
MAVEN_WRAPPER_JAR_PATH);
|
|
if (!outputFile.getParentFile().exists()) {
|
|
if (!outputFile.getParentFile().mkdirs()) {
|
|
System.out.println("- ERROR creating output direcrory '"
|
|
+ outputFile.getParentFile().getAbsolutePath() + "'");
|
|
}
|
|
}
|
|
System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
|
|
try {
|
|
downloadFileFromURL(url, outputFile);
|
|
System.out.println("Done");
|
|
System.exit(0);
|
|
}
|
|
catch (Throwable e) {
|
|
System.out.println("- Error downloading");
|
|
e.printStackTrace();
|
|
System.exit(1);
|
|
}
|
|
}
|
|
|
|
private static void downloadFileFromURL(String urlString, File destination)
|
|
throws Exception {
|
|
URL website = new URL(urlString);
|
|
ReadableByteChannel rbc;
|
|
rbc = Channels.newChannel(website.openStream());
|
|
FileOutputStream fos = new FileOutputStream(destination);
|
|
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
|
|
fos.close();
|
|
rbc.close();
|
|
}
|
|
|
|
}
|