我的问题是关于在使用maven进行发布时将资源包含在jar文件中。Maven在释放时不会复制未跟踪的资源
我使用Maven来构建我的项目,当我运行
$ mvn package
资源包含在输出罐子。但是当我运行时
$ mvn release:prepare
$ mvn release:perform
这些资源不包含在发布jar中。
资源位于Maven的默认目录,src/main/resources
,但他们是外源控制(通过.gitignore
忽略)的。 从maven的输出我意识到,maven做git签出到不同的文件夹和资源不复制到该文件夹。 这就是为什么Maven发布插件不打包它释放jar。
我的问题是处理这种情况的最佳方法是什么?
在发布过程中创建资源文件夹的符号链接?怎么样?
复制资源?怎么样?
或者将资源投入SCM是使它们在发布的包中可用的唯一方法?
我编写测试用例小本:
#!/bin/sh
# here is pom.xml
cat >pom.xml <<EOF
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.domain</groupId>
<artifactId>artifact</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>artifact</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<scm>
<developerConnection>scm:git:file://$(pwd)</developerConnection>
</scm>
<distributionManagement>
<repository>
<id>internal.repo</id>
<name>Example Internal Repository</name>
<url>file://$(pwd)/deploy</url>
</repository>
</distributionManagement>
</project>
EOF
#here is src/main/java/Main.java
mkdir src
mkdir src/main
mkdir src/main/java
mkdir src/main/resources
cat >src/main/java/Main.java <<EOF
import java.io.InputStream;
public class Main
{
public static void main(String args[])
{
boolean ok = false;
InputStream is = new Main().getClass().getResourceAsStream("/some_file_outside_scm");
ok = is != null;
System.out.println("ok=" + ok);
}
}
EOF
#some data in src/main/resources/some_file_outside_scm
cat >src/main/resources/some_file_outside_scm <<EOF
123
456
EOF
#file src/main/resources/.gitignore
cat >src/main/resources/.gitignore <<EOF
some_file_outside_scm
EOF
#.gitignore in the project root
cat >.gitignore <<EOF
target
deploy
EOF
git init .
git add pom.xml
git add src/main/java/Main.java
git commit -m "first commit"
#The test case can be tested with these commands
mvn package
echo !!!!!!!!!!!!!!!!!
echo contents of the packaged jar
jar tf target/artifact-0.0.1-SNAPSHOT.jar
#The file 'some_file_outside_scm' is packaged into jar.
echo !!!!!!!!!!!!!!!!!
echo after mvn package
java -cp target/artifact-0.0.1-SNAPSHOT.jar Main
# ok=true
echo !!!!!!!!!!!!!!!!!
mvn release:prepare
mvn release:perform
echo !!!!!!!!!!!!!!!!!
echo but after mvn release
java -cp deploy/com/domain/artifact/0.0.1/artifact-0.0.1.jar Main
# ok=false
#the file is not included in the release jar
echo !!!!!!!!!!!!!!!!!
echo contents of the release jar
jar tf deploy/com/domain/artifact/0.0.1/artifact-0.0.1.jar
这些资源不在您想要发布的SCM中吗?你意识到如果你不能单纯从源头上构建项目,它会使可重复构建变得困难? – artbristol
你能解释为什么你的资源不在版本控制下的src/main/resources中吗? – khmarbaise
资源不跟踪SCM的原因是,它们对于特定项目来说是大的和外部的。换句话说,这些资源的变化是从外部追踪的。 – sancoder