Commit 21dea9a235d324c0b7874338c74af4caefcdd072
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87eab034
新建实体类
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.mvn/wrapper/MavenWrapperDownloader.java
0 → 100644
1 | +/* | |
2 | + * Copyright 2007-present the original author or authors. | |
3 | + * | |
4 | + * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | + * you may not use this file except in compliance with the License. | |
6 | + * You may obtain a copy of the License at | |
7 | + * | |
8 | + * https://www.apache.org/licenses/LICENSE-2.0 | |
9 | + * | |
10 | + * Unless required by applicable law or agreed to in writing, software | |
11 | + * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | + * See the License for the specific language governing permissions and | |
14 | + * limitations under the License. | |
15 | + */ | |
16 | + | |
17 | +import java.net.*; | |
18 | +import java.io.*; | |
19 | +import java.nio.channels.*; | |
20 | +import java.util.Properties; | |
21 | + | |
22 | +public class MavenWrapperDownloader { | |
23 | + | |
24 | + private static final String WRAPPER_VERSION = "0.5.6"; | |
25 | + /** | |
26 | + * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. | |
27 | + */ | |
28 | + private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/" | |
29 | + + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar"; | |
30 | + | |
31 | + /** | |
32 | + * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to | |
33 | + * use instead of the default one. | |
34 | + */ | |
35 | + private static final String MAVEN_WRAPPER_PROPERTIES_PATH = | |
36 | + ".mvn/wrapper/maven-wrapper.properties"; | |
37 | + | |
38 | + /** | |
39 | + * Path where the maven-wrapper.jar will be saved to. | |
40 | + */ | |
41 | + private static final String MAVEN_WRAPPER_JAR_PATH = | |
42 | + ".mvn/wrapper/maven-wrapper.jar"; | |
43 | + | |
44 | + /** | |
45 | + * Name of the property which should be used to override the default download url for the wrapper. | |
46 | + */ | |
47 | + private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl"; | |
48 | + | |
49 | + public static void main(String args[]) { | |
50 | + System.out.println("- Downloader started"); | |
51 | + File baseDirectory = new File(args[0]); | |
52 | + System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath()); | |
53 | + | |
54 | + // If the maven-wrapper.properties exists, read it and check if it contains a custom | |
55 | + // wrapperUrl parameter. | |
56 | + File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH); | |
57 | + String url = DEFAULT_DOWNLOAD_URL; | |
58 | + if (mavenWrapperPropertyFile.exists()) { | |
59 | + FileInputStream mavenWrapperPropertyFileInputStream = null; | |
60 | + try { | |
61 | + mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile); | |
62 | + Properties mavenWrapperProperties = new Properties(); | |
63 | + mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); | |
64 | + url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url); | |
65 | + } catch (IOException e) { | |
66 | + System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'"); | |
67 | + } finally { | |
68 | + try { | |
69 | + if (mavenWrapperPropertyFileInputStream != null) { | |
70 | + mavenWrapperPropertyFileInputStream.close(); | |
71 | + } | |
72 | + } catch (IOException e) { | |
73 | + // Ignore ... | |
74 | + } | |
75 | + } | |
76 | + } | |
77 | + System.out.println("- Downloading from: " + url); | |
78 | + | |
79 | + File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); | |
80 | + if (!outputFile.getParentFile().exists()) { | |
81 | + if (!outputFile.getParentFile().mkdirs()) { | |
82 | + System.out.println( | |
83 | + "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'"); | |
84 | + } | |
85 | + } | |
86 | + System.out.println("- Downloading to: " + outputFile.getAbsolutePath()); | |
87 | + try { | |
88 | + downloadFileFromURL(url, outputFile); | |
89 | + System.out.println("Done"); | |
90 | + System.exit(0); | |
91 | + } catch (Throwable e) { | |
92 | + System.out.println("- Error downloading"); | |
93 | + e.printStackTrace(); | |
94 | + System.exit(1); | |
95 | + } | |
96 | + } | |
97 | + | |
98 | + private static void downloadFileFromURL(String urlString, File destination) throws Exception { | |
99 | + if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) { | |
100 | + String username = System.getenv("MVNW_USERNAME"); | |
101 | + char[] password = System.getenv("MVNW_PASSWORD").toCharArray(); | |
102 | + Authenticator.setDefault(new Authenticator() { | |
103 | + @Override | |
104 | + protected PasswordAuthentication getPasswordAuthentication() { | |
105 | + return new PasswordAuthentication(username, password); | |
106 | + } | |
107 | + }); | |
108 | + } | |
109 | + URL website = new URL(urlString); | |
110 | + ReadableByteChannel rbc; | |
111 | + rbc = Channels.newChannel(website.openStream()); | |
112 | + FileOutputStream fos = new FileOutputStream(destination); | |
113 | + fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); | |
114 | + fos.close(); | |
115 | + rbc.close(); | |
116 | + } | |
117 | + | |
118 | +} | ... | ... |
.mvn/wrapper/maven-wrapper.properties
0 → 100644