问题
I'm trying to set up an Ant + Ivy build for a personal project. Everything was making sense, and working nicely, until I got to LWJGL. Everything from LWJGL is resolved, except the natives.
The Readme.md on their website makes it seem that it is possible to get these through Ivy:
LWJGL 3 can be used with Maven/Gradle/Ivy, with the following dependencies:
- org.lwjgl:lwjgl:${version}
- org.lwjgl:lwjgl-platform:${version}:natives-windows
- org.lwjgl:lwjgl-platform:${version}:natives-linux
- org.lwjgl:lwjgl-platform:${version}:natives-osx
The files I want are definitely on the maven central repository, so there must be a way of getting them through Ivy. I have set up my ivy.xml file like so:
<ivy-module version="1.0" xmlns:extra="http://ant.apache.org/ivy/extra">
<info organisation="foo" module="bar"/>
<publications>
<artifact name="baz" type="jar"/>
</publications>
<dependencies>
<dependency org="org.lwjgl" name="lwjgl" rev="3.0.0a"/>
<dependency org="org.lwjgl" name="lwjgl-platform" rev="3.0.0a" extra:classifier="natives-linux"/>
<dependency org="org.lwjgl" name="lwjgl-platform" rev="3.0.0a" extra:classifier="natives-osx"/>
<dependency org="org.lwjgl" name="lwjgl-platform" rev="3.0.0a" extra:classifier="natives-windows"/>
</dependencies>
</ivy-module>
And my resolve task in ant:
<target name="resolve" description="Retrive dependencies with Ivy">
<ivy:retrieve/>
</target>
For some reason, this downloads all the artifacts from "org.lwjgl:lwjgl:3.0.0a" (jar, javadoc, and sources), but does not download any of the natives from "org.lwjgl:lwjgl-platform:3.0.0a". I spent a long time on Google, and finally managed to find the "extra:classifier" syntax in someone else's ivy.xml file on Github, but to no avail (I got my hopes up too early). There must be something I'm missing, so I hope someone on SO can help.
回答1:
Extra artifacts in Maven modules must be explicitly retrieved in the ivy dependency declaration.
You'll also need to specify the pattern used in the retrieve task, because "classifier" is a Maven specific tag and optional.
Example
├── build.xml
├── ivy.xml
└── target
└── lib
├── lwjgl-3.0.0a.jar
├── lwjgl-platform-3.0.0a-natives-linux.jar
├── lwjgl-platform-3.0.0a-natives-osx.jar
└── lwjgl-platform-3.0.0a-natives-windows.jar
build.xml
<project name="demo" default="resolve" xmlns:ivy="antlib:org.apache.ivy.ant">
<property name="build.dir" location="target"/>
<target name="resolve">
<ivy:retrieve pattern="${build.dir}/lib/[artifact]-[revision](-[classifier]).[ext]"/>
</target>
</project>
ivy.xml
<ivy-module version="1.0" xmlns:extra="http://ant.apache.org/ivy/extra">
<info organisation="foo" module="bar"/>
<dependencies>
<dependency org="org.lwjgl" name="lwjgl" rev="3.0.0a" conf="default"/>
<dependency org="org.lwjgl" name="lwjgl-platform" rev="3.0.0a">
<artifact name="lwjgl-platform" type="jar" extra:classifier="natives-linux"/>
<artifact name="lwjgl-platform" type="jar" extra:classifier="natives-osx"/>
<artifact name="lwjgl-platform" type="jar" extra:classifier="natives-windows"/>
</dependency>
</dependencies>
</ivy-module>
来源:https://stackoverflow.com/questions/35052763/downloading-lwjgl-natives-with-ivy