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feat(CI/CD): add a maven wrapper and update documentation
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|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| * Copyright 2007-present the original author or authors. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
| import java.net.*; | ||
| import java.io.*; | ||
| import java.nio.channels.*; | ||
| import java.util.Properties; | ||
|
|
||
| public class MavenWrapperDownloader { | ||
|
|
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| private static final String WRAPPER_VERSION = "0.5.6"; | ||
| /** | ||
| * 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/" | ||
| + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".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()); | ||
|
|
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| // 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); | ||
|
|
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| File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); | ||
| if(!outputFile.getParentFile().exists()) { | ||
| if(!outputFile.getParentFile().mkdirs()) { | ||
| System.out.println( | ||
| "- ERROR creating output directory '" + 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 { | ||
| if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) { | ||
| String username = System.getenv("MVNW_USERNAME"); | ||
| char[] password = System.getenv("MVNW_PASSWORD").toCharArray(); | ||
| Authenticator.setDefault(new Authenticator() { | ||
| @Override | ||
| protected PasswordAuthentication getPasswordAuthentication() { | ||
| return new PasswordAuthentication(username, password); | ||
| } | ||
| }); | ||
| } | ||
| 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(); | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,2 @@ | ||
| distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip | ||
| wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar |
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