Can we generate maven dependency tree separatery in a folder with a multi-module project?-CodePudding

We have un maven multimodule projets and we would like to generate a textual represensation of each maven modules in a folder.

Is it possible ?

CodePudding user response：

Say you have a parent module like this:

<?xml version="1.0" encoding="UTF-8"?>
<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>org.example</groupId>
    <artifactId>deps</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <modules>
        <module>junit-module</module>
        <module>testng-module</module>
    </modules>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.testng</groupId>
                <artifactId>testng</artifactId>
                <version>7.4.0</version>
            </dependency>
            <dependency>
                <groupId>org.junit</groupId>
                <artifactId>junit5-engine</artifactId>
                <version>5.0.0-ALPHA</version>
            </dependency>

        </dependencies>
    </dependencyManagement>

</project>

and two child modules:

<?xml version="1.0" encoding="UTF-8"?>
<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>org.example</groupId>
    <artifactId>junit-module</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.example</groupId>
        <artifactId>deps</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.junit</groupId>
            <artifactId>junit5-engine</artifactId>
        </dependency>
    </dependencies>

</project>

and

<?xml version="1.0" encoding="UTF-8"?>
<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>org.example</groupId>
    <artifactId>tesng-module</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.example</groupId>
        <artifactId>deps</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
        </dependency>
    </dependencies>

</project>

so if you would run mvn dependency:tree under the parent folder you would get:

[INFO] ----------------------< org.example:junit-module >----------------------
[INFO] Building junit-module 1.0-SNAPSHOT                                 [2/3]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ junit-module ---
[INFO] org.example:junit-module:jar:1.0-SNAPSHOT
[INFO] \- org.junit:junit5-engine:jar:5.0.0-ALPHA:compile
[INFO]     - org.junit:junit5-api:jar:5.0.0-ALPHA:compile
[INFO]    |   - org.opentest4j:opentest4j:jar:1.0.0-ALPHA:compile
[INFO]    |  \- org.junit:junit-commons:jar:5.0.0-ALPHA:compile
[INFO]    \- org.junit:junit-engine-api:jar:5.0.0-ALPHA:compile
[INFO] 
[INFO] ----------------------< org.example:tesng-module >----------------------
[INFO] Building tesng-module 1.0-SNAPSHOT                                 [3/3]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ tesng-module ---
[INFO] org.example:tesng-module:jar:1.0-SNAPSHOT
[INFO] \- org.testng:testng:jar:7.4.0:compile
[INFO]     - com.beust:jcommander:jar:1.78:compile
[INFO]    \- org.webjars:jquery:jar:3.5.1:compile
[INFO] ------------------------------------------------------------------------

which is basically what you need. You also can run the same command from within child module folder hence get the tree for particular module separately.

CodePudding user response：

Thx for your answer but is it possible to generate separate tree for each modules into a specified folder ? (we want to link these trees in a documentation and refreshing the trees during a maven phase )