Apache Ivy如何解决ivysettings.xml文件中提供的工件模式中的变量？

问题描述

如果我的ivysettings.xml文件包含：

If my ivysettings.xml file includes:

<url name="com.springsource.repository.bundles.external">
    <ivy pattern="http://repository.springsource.com/ivy/bundles/external/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" />
    <artifact pattern="http://repository.springsource.com/ivy/bundles/external/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" />
</url>

我的ivy.xml文件包括：

And my ivy.xml file includes:

<dependency org="org.junit"
            name="com.springsource.org.junit" 
            rev="4.4.0" />

从我跑Ivy时，我可以说这解决了：

From when I ran Ivy, I can tell that this resolves to: http://repository.springsource.com/ivy/bundles/external/org.junit/com.springsource.org.junit/4.4.0/com.springsource.org.junit-sources-4.4.0.jar

所以决议权如下：

[organization] => "org.junit"
[module] => "com.springsource.org.junit"
[revision] => "4.4.0"
[artifact] => "com.springsource.org.junit-sources"
[ext] => "jar"

我看到常春藤如何解析[组织]，[模块]和[修订]在URL模式（duh），但它如何解决[artifact]和[ext]？

I see how ivy resolves the [organisation], [module], and [revision] in the URL pattern (duh), but how does it resolve [artifact] and [ext]?

的文档似乎缺乏。

推荐答案

Ivy首先解析< ivy pattern ... /> ，其中包含组织，模块和修订，以及 [artifact] 硬编码为ivy， [ext] 硬编码为xml。这会产生一个URL，在这种情况下：

Ivy first resolves the <ivy pattern... />, with the organization, module, and revision given, and with the [artifact] hardcoded as "ivy" and [ext] hardcoded as "xml". This yields a URL, in this case:

http://repository.springsource.com/ivy/bundles/external/org.junit/com.springsource.org.junit/4.4.0/ivy-4.4.0.xml

这是此模块的常春藤配置文件。除其他外，这个常春藤配置文件包含有关其他工件的信息，特别是：

This is the ivy configuration file for this module. Among other things, this ivy configuration file contains information about other artifacts, in particular:

<artifact name="com.springsource.org.junit-sources" type="src" ext="jar"/>
<artifact name="license" type="license" ext="txt"/>

这两个用于完成<工件模式...... /> part - 下载许可证并下载jar文件。

These two are then used to complete the <artifact pattern... /> part - to download the license and to download the jar file.

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