How to use master pom file to checkout all modules of a web application and build all modules - maven

Question

I have a web application that relies on several modules. So to build it, I have a master pom.xml file. What I want this pom file to do is to checkout out all the modules.
below is my pom file.
<executions>
<execution>
<id>check-out-project1</id>
<phase>generate-sources</phase>
<goals>
<goal>checkout</goal>
</goals>
<configuration>
<checkoutDirectory>${project.build.directory}/module1</checkoutDirectory>
<connectionUrl>scm:svn:svn://svnserver/svn/module1/trunk</connectionUrl>
<!--<developerConnection>scm:svn:svn://svnserver/svn/module1/trunk</developerConnection>!-->
<username>username</username>
<password>password</password>
</configuration>
</execution>
<execution>
<id>check-out-project2</id>
<phase>generate-sources</phase>
<goals>
<goal>checkout</goal>
</goals>
<configuration>
<checkoutDirectory>${project.build.directory}/module1</checkoutDirectory>
<connectionUrl>scm:svn:svn://svnserver/svn/module1/trunk</connectionUrl>
<username>username</username>
<password>password</password>
</configuration>
</execution>
</executions>
I have tried mvn scm:checkout and mvn scm:checkout -check-out-project1 but it give me the error:
Cannot run checkout command : Can't load the scm provider. You need to define a connectionUrl parameter.
I don't understand why this is happening since I have the connectionUrl parameters defined inside the pom file already,the ideas point that I want to get to is having the pom file configured to be able to checkout multiple projects at the same time. Please let me know what I am doing wrong here, Thanks in Advance.

Answer 1

I found that if placing each of the checkouts into its own <execution> ... </execution> and within place the individual <configuration> ... </configuration> for them works. For example:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-scm-plugin</artifactId>
<version>1.9.4</version>
<executions>
<execution>
<id>repo1-dependency</id>
<phase>generate-sources</phase>
<configuration>
<connectionUrl>${my.repo1.url}</connectionUrl>
<scmVersion>${my.repo1.branch}</scmVersion>
<scmVersionType>branch</scmVersionType>
<checkoutDirectory>${project.build.directory}/${my.repo1}-${my.repo1.branch}</checkoutDirectory>
</configuration>
<goals>
<goal>checkout</goal>
</goals>
</execution>
<execution>
<id>repo2-dependency</id>
<phase>generate-sources</phase>
<configuration>
<connectionUrl>${my.repo2.url}</connectionUrl>
<scmVersion>${my.repo2.branch}</scmVersion>
<scmVersionType>branch</scmVersionType>
<checkoutDirectory>${project.build.directory}/${my.repo2}-${my.repo2.branch}</checkoutDirectory>
</configuration>
<goals>
<goal>checkout</goal>
</goals>
</execution>
</executions>
</plugin>

Answer 2

I faced to same situation and I found a solution -using your code :D- that works on my computer:
<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>de.xxx.internet</groupId>
<artifactId>my-app</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>Maven Quick Start Archetype</name>
<url>http://www.mySite.de</url>
<scm>
<connection>scm:svn:http://svn-repo-adress:8080/repo/myDirectory</connection>
<developerConnection>http://svn-repo-adress:8080/repo/myDirectory</developerConnection>
<tag>HEAD</tag>
<url>http://svn-repo-adress:8080/repo/myDirectory</url>
</scm>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-scm-plugin</artifactId>
<version>1.6</version>
<configuration>
<goals>checkout</goals>
<checkoutDirectory>target/checkout</checkoutDirectory>
<username>username</username>
<password>userpassword</password>
</configuration>
<executions>
<execution>
<id>check-out-project1</id>
<phase>generate-sources</phase>
<goals>
<goal>checkout</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
After I executed "mvn scm:checkout" on the cmd console it did work.
I think the important point was to add the scm tag first, before I had executed the build tag.