如何在 Tycho maven 插件中使用代理？

Question

我正在尝试从公司防火墙后面构建 Eclipse Kura 项目。

当我尝试构建 kura/examples/org.eclipse.kura.example.camel.aggregation (mvn clean install) 时，它以：

结尾

Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'eclipse.kura' from location http://packagedrone.eclipse.org/p2/eclipse-kura-2.1
(...)
Caused by: java.lang.RuntimeException: Failed to load p2 repository with ID 'eclipse.kura' from location http://packagedrone.eclipse.org/p2/eclipse-kura-2.1
    at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.loadMetadataRepository(TargetPlatformFactoryImpl.java:296)
(...)
Caused by: java.net.SocketTimeoutException: Read timed out

我尝试设置代理：

               <plugin>
                        <groupId>org.eclipse.tycho</groupId>
                        <artifactId>tycho-maven-plugin</artifactId>
                        <version>${tycho-version}</version>
                        <extensions>true</extensions>
                        <configuration>
                                <argLine>-Dhttp.proxyHost=my-proxy-web -Dhttp.proxyPort=3128</argLine>
                        </configuration>
                </plugin>

但它没有用。 Kura 项目使用的是 v0.20.0 的 tycho-maven-plugin，我尝试升级到 1.0.0 但没有成功。

当我在浏览器中设置相同的代理时，我可以访问“http://packagedrone.eclipse.org/p2/eclipse-kura-2.1”

更新： 我还已经在 maven settings.xml 中定义了我的代理，它可以在各种存储库中查找依赖项，但 Tycho maven 插件没有考虑到这一点：

  <proxies>
    <proxy>
      <id>main-proxy</id>
      <active>true</active>
      <protocol>http</protocol>
      <host>my-proxy-web</host>
      <port>3128</port>
      <nonProxyHosts>*.mycomp.fr</nonProxyHosts>
    </proxy>
  </proxies>

更新 2：

使用 -X 和 -s settings.xml 运行时的 maven 调试日志：

[DEBUG] Clearing proxy settings in OSGi runtime

（这里只提到Tycho插件源对应的“proxy”，没有“Configuring proxy”也没有“Ignoring proxy”，好像没有找到“active”proxy）

[INFO] Computing target platform for MavenProject: org.eclipse.kura:org.eclipse.kura.example.camel.aggregation:1.1.0 @ /home/tristan/Dev/projects/IOT/kura.git/kura/examples/org.eclipse.kura.example.camel.aggregation/pom.xml
[DEBUG] Added p2 repository eclipse.kura (http://packagedrone.eclipse.org/p2/eclipse-kura-2.1)
[DEBUG] Using execution environment 'JavaSE-1.7' configured in Bundle-RequiredExecutionEnvironment
[DEBUG] Registered artifact repository org.eclipse.tycho.repository.registry.facade.RepositoryBlackboardKey(uri=file:/resolution-context-artifacts@/home/tristan/Dev/projects/IOT/kura.git/kura/examples/org.eclipse.kura.example.camel.aggregation)
[INFO] Adding repository http://packagedrone.eclipse.org/p2/eclipse-kura-2.1
[WARNING] Failed to access p2 repository http://packagedrone.eclipse.org/p2/eclipse-kura-2.1, use local cache.
org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at http://packagedrone.eclipse.org/p2/eclipse-kura-2.1/content.xml.
(...)
Caused by: org.apache.http.conn.ConnectTimeoutException: Connect to packagedrone.eclipse.org:80 timed out

更新 3： 我对“更新 2”的态度不好，我用太多的设置做了太多的测试，我为此测试使用了错误的文件。

这是正确设置代理的输出（仍然失败）：

mvn clean install -X -s good-settings-with-proxy.xml

[DEBUG] Clearing proxy settings in OSGi runtime
[DEBUG] Configuring proxy for protocol http: host=10.91.31.45, port=3128

!ENTRY org.eclipse.core.net 1 0 2017-04-28 18:02:58.106
!MESSAGE System property http.proxyHost is not set but should be 10.91.31.45.

!ENTRY org.eclipse.core.net 1 0 2017-04-28 18:02:58.106
!MESSAGE System property http.proxyPort is not set but should be 3128.

如果我明确设置警告中询问的系统属性：

mvn clean install -X -Dhttp.proxyHost=10.91.31.45 -Dhttp.proxyPort=3128 -s /home/tristan/CODE/apache-maven-3.2.3/conf/settings.with-proxy.xml

!ENTRY org.eclipse.core.net 1 0 2017-04-28 18:02:58.079
!MESSAGE System property http.proxyHost has been set to 10.91.31.45 by an external source. This value will be overwritten using the values from the preferences

!ENTRY org.eclipse.core.net 1 0 2017-04-28 18:02:58.079
!MESSAGE System property http.proxyPort has been set to 3128 by an external source. This value will be overwritten using the values from the preferences
[DEBUG] Clearing proxy settings in OSGi runtime
[DEBUG] Configuring proxy for protocol http: host=10.91.31.45, port=3128, nonProxyHosts=*.edf.fr

!ENTRY org.eclipse.core.net 1 0 2017-04-28 18:02:58.106
!MESSAGE System property http.proxyHost is not set but should be 10.91.31.45.

!ENTRY org.eclipse.core.net 1 0 2017-04-28 18:02:58.106
!MESSAGE System property http.proxyPort is not set but should be 3128.

Answer 1

Tycho 从 settings.xml 派生配置，您需要在 Maven 的 settings.xml 中提供具有不同 ID 的 http 和 https 代理元素（以避免在 Tycho 配置文件中重叠）。

<proxies>
  <proxy>
    <id>123</id>
    <active>true</active>
    <protocol>https</protocol>
    <host>my-proxy-web</host>
    <port>3128</port>
    <nonProxyHosts>*.mycomp.fr</nonProxyHosts>
  </proxy>
  <proxy>
    <id>321</id>
    <active>true</active>
    <protocol>http</protocol>
    <host>my-proxy-web</host>
    <port>3128</port>
    <nonProxyHosts>*.mycomp.fr</nonProxyHosts>
  </proxy>
</proxies>

Answer 2

khmarbaise是对的，应该在maven的settings.xml中配置代理

maven 调试日志（mvn clean install -X）应该给你输出

https://github.com/eclipse/tycho/blob/f42e43c5722c0f74e55c5c03259476ac8b6f8836/tycho-core/src/main/java/org/eclipse/tycho/osgi/configuration/OSGiProxyConfigurator.java#L65

如果没有，您的代理设置由于某种原因没有被考虑

• maven 是否真的使用了你的 settings.xml（尝试使用 -s ）？
• settings.xml 格式正确 (http://maven.apache.org/ref/3.5.0/maven-settings/settings.html)

如需进一步调试 HTTP 客户端级别，请使用 apache HTTP 客户端跟踪，请参阅 https://wiki.eclipse.org/Equinox/p2/Reporting_Problems -> 报告网络连接问题

再次检查的另一个先决条件是，您的构建是否真的可以在没有代理和干净的本地 maven 存储库的情况下工作。