如何从存储库列出工件的传递依赖性？

Question

我想知道:有没有办法使用Maven Dependency插件(或命令行上的其他东西),列出来自存储库(即不在我的pom.xml)中的工件的传递依赖性？

我知道可以mvn dependency:tree用来列出我的本地项目的依赖项,但是我想在将它添加到我的项目之前知道某些东西的依赖关系(即做出明智的决定),并且pom.xml为了依赖的目的将依赖项添加到本地插件似乎是hackish.

我希望我可以运行如下:

mvn dependency:tree "-DgroupId=net.jawr" "-DartifactId=jawr-core" "-Dversion=3.5"

我提出的最好的是:

1. 删除我的本地存储库(即~/.m2/repository)
2. 跑 mvn dependency:get "-DgroupId=net.jawr" "-DartifactId=jawr-core" "-Dversion=3.5"
3. 检查输出

但这似乎非常黑客和浪费.

PS - 我不在乎它是否是树格式.

Answer 1

我不知道有任何本地方式与Maven这样做,但是,我想出了以下shell脚本,它似乎可以完成这项工作:

#!/bin/sh
if [ "$#" -ne 3 ]; then
  echo "Usage: $0 <groupId> <artifactId> <version>"
  exit
fi

POM_DIR="`echo "$1" | tr . /`/$2/$3"
POM_PATH="$POM_DIR/$2-$3.pom"

mkdir -p "$HOME/.m2/repository/$POM_DIR"
wget -q -O "$HOME/.m2/repository/$POM_PATH" "http://repo.maven.apache.org/maven2/$POM_PATH"
mvn -f "$HOME/.m2/repository/$POM_PATH" dependency:tree

此脚本从Maven Central Repository下载您指定的工件的POM,然后dependency:tree为该POM 运行目标.例:

izstas@izstas-PC:~$ ./deptree net.jawr jawr-core 3.5
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Java web resources bundling and compression 3.5
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.1:tree (default-cli) @ jawr-core ---
[INFO] net.jawr:jawr-core:jar:3.5
[INFO] +- javax.servlet:servlet-api:jar:2.5:provided
[INFO] +- javax.servlet.jsp:jsp-api:jar:2.1:provided
[INFO] +- org.mozilla:rhino:jar:1.7R4:provided
[INFO] +- com.yahoo.platform.yui:yuicompressor:jar:2.4.7:provided
[INFO] +- javax.faces:jsf-api:jar:1.1_02:provided
[INFO] +- commons-validator:commons-validator:jar:1.2.0:provided
[INFO] |  +- commons-beanutils:commons-beanutils:jar:1.7.0:provided
[INFO] |  +- commons-digester:commons-digester:jar:1.6:provided
[INFO] |  |  \- commons-collections:commons-collections:jar:2.1:provided
[INFO] |  +- commons-logging:commons-logging:jar:1.0.4:provided
[INFO] |  +- oro:oro:jar:2.0.8:provided
[INFO] |  \- xml-apis:xml-apis:jar:1.0.b2:provided
[INFO] +- taglibs:standard:jar:1.1.2:provided
[INFO] +- net.sf.ehcache:ehcache:jar:2.7.4:provided
[INFO] +- com.carrotsearch:smartsprites:jar:0.2.10:provided
[INFO] |  +- com.google.guava:guava:jar:14.0.1:provided
[INFO] |  +- args4j:args4j:jar:2.0.16:provided
[INFO] |  +- org.apache.commons:commons-math3:jar:3.0:provided
[INFO] |  +- commons-io:commons-io:jar:2.4:provided
[INFO] |  \- org.apache.commons:commons-lang3:jar:3.1:provided
[INFO] +- com.google.javascript:closure-compiler:jar:v20131014:provided
[INFO] |  +- com.google.protobuf:protobuf-java:jar:2.4.1:provided
[INFO] |  +- org.json:json:jar:20090211:provided
[INFO] |  \- com.google.code.findbugs:jsr305:jar:1.3.9:provided
[INFO] +- org.slf4j:slf4j-api:jar:1.7.5:compile
[INFO] +- org.slf4j:slf4j-log4j12:jar:1.7.5:provided
[INFO] +- log4j:log4j:jar:1.2.17:provided
[INFO] +- junit:junit:jar:4.11:test
[INFO] |  \- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO] \- org.mockito:mockito-all:jar:1.9.5:test
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.756s
[INFO] Finished at: Fri Mar 14 21:00:41 MSK 2014
[INFO] Final Memory: 10M/181M
[INFO] ------------------------------------------------------------------------

(如果我愿意,我可能会剥离不必要的Maven输出)

但是,这似乎下载.jar文件的依赖项,所以我不能说它是一个干净的解决方案.但至少它不需要您清除本地存储库.