Maven antrun: pass maven properties to ant

Question

I am trying to pass maven properties (defined through profiles) to a antrun execution:

Answer 1

On the newer versions of maven you can just use:

<taskdef  resource="net/sf/antcontrib/antcontrib.properties"
                    classpathref="maven.plugin.classpath" />

---

example:

   <build>
....    
       <plugins>
         ....
    <plugin>
         <artifactId>maven-antrun-plugin</artifactId>
         <executions>
            <execution>
            <phase>install</phase>
            <goals>
                <goal>run</goal>
            </goals>
            <configuration>
            <tasks>
              <taskdef  resource="net/sf/antcontrib/antcontrib.properties"
                                        classpathref="maven.plugin.classpath" />

              <echo message="Project name from Maven: ${project.name}" />

            </tasks>
        </configuration>
         </execution>
       </executions>
    </plugin>
         ....
      </plugins>
         ....
   </build>

---

<dependencies>
<dependency>
    <groupId>ant-contrib</groupId>
    <artifactId>ant-contrib</artifactId>
    <version>1.0b3</version>
    <exclusions>
        <exclusion>
            <groupId>ant</groupId>
            <artifactId>ant</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>ant</groupId>
    <artifactId>ant-nodeps</artifactId>
    <version>1.6.5</version>
</dependency>
</dependencies>

Answer 2

Most properties are automatically passed along to ant, at least if you're running an inlined ant script. Some of the properties get renamed. I suggest running "mvn -X" and the antrun plugin prints a list of all the variable mappings into ant (things like basedir becomes project.basedir, etc.)

Answer 3

You can pass the properties by defining new Ant properties (using the property tag in your target within the configuration). So for example:

<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/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.test</groupId>
    <artifactId>test-module</artifactId>
    <name>test-module</name>
    <version>SNAPSHOT</version>

    <properties>
        <my.custom.property>false</my.custom.property>
    </properties>

    <profiles>
        <profile>
            <id>customProfile</id>
            <properties>
                <my.custom.property>true</my.custom.property>
            </properties>
        </profile>
    </profiles>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>1.7</version>
                <executions>
                    <execution>
                        <id>compile</id>
                        <phase>compile</phase>
                        <configuration>
                            <target>
                                <property name="antProperty" value="${my.custom.property}"/>
                                <echo message="Custom Ant Property is: ${antProperty}"/>
                                <echoproperties />
                            </target>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

When I execute mvn compile on this pom the output is:

main:
[echo] Custom Ant Property is: false
[echoproperties] #Ant properties
[echoproperties] #Thu Aug 08 17:17:30 CEST 2013
[echoproperties] ant.project.name=maven-antrun-
[echoproperties] ant.version=Apache Ant(TM) version 1.8.2 compiled on December 20 2010
[echoproperties] antProperty=false

and when the command is mvn -PcustomProfile compile then the output is:

main:
[echo] Custom Ant Property is: true
[echoproperties] #Ant properties
[echoproperties] #Thu Aug 08 17:18:30 CEST 2013
[echoproperties] ant.project.name=maven-antrun-
[echoproperties] ant.version=Apache Ant(TM) version 1.8.2 compiled on December 20 2010
[echoproperties] antProperty=true

This works using maven 3.0.5.