Map a list of strings to a collection of file resources for a dependset

Question

Background: I read names from an XML file and want to map them to source and target paths for a build task. I am not an experienced Ant user and I\'m looking for a way to that

Answer 1

ANT is not a programming language. Easy to embed groovy.

Example

├── build.xml
├── sample.xml
├── src
│   ├── file1.txt
│   ├── file2.txt
│   └── file3.txt
└── target
    ├── file1.txt
    └── file2.txt

Run as follows

$ ant
Buildfile: /.../build.xml

install-groovy:

build:
     [copy] Copying 2 files to /.../target
     [copy] Copying /.../src/file1.txt to /.../target/file1.txt
     [copy] Copying /.../src/file2.txt to /.../target/file2.txt

BUILD SUCCESSFUL

sample.xml

<list>
<value>file1</value>
<value>file2</value>
</list>

build.xml

<project name="demo" default="build">

    <!--
    ================
    Build properties
    ================
    -->
    <property name="src.dir"   location="src"/>
    <property name="src.ext"   value="txt"/>
    <property name="build.dir" location="target"/>

    <available classname="org.codehaus.groovy.ant.Groovy" property="groovy.installed"/> 

    <!--
    ===========
    Build targets
    ===========
    -->    
    <target name="build" depends="install-groovy" description="Build the project">
        <taskdef name="groovy" classname="org.codehaus.groovy.ant.Groovy"/>
        <groovy>
        def xmllist = new XmlSlurper().parse(new File("sample.xml"))

        ant.copy(todir:properties["build.dir"], verbose:true, overwrite:true) {
           fileset(dir:properties["src.dir"]) {
              xmllist.value.each {
                include(name:"${it}.${properties["src.ext"]}") 
              }
           }
        }
        </groovy>
    </target>

    <target name="clean" description="Cleanup project workspace">
       <delete dir="${build.dir}"/>
    </target>

    <target name="install-groovy" description="Install groovy" unless="groovy.installed">
        <mkdir dir="${user.home}/.ant/lib"/>
        <get dest="${user.home}/.ant/lib/groovy.jar" src="http://search.maven.org/remotecontent?filepath=org/codehaus/groovy/groovy-all/2.3.6/groovy-all-2.3.6.jar"/>
        <fail message="Groovy has been installed. Run the build again"/>
    </target>

</project>