convert ant script into gradle script

Question

How do you convert ant script into gradle script? Hi, Can you please help me to convert ant script into gradle script. I am new user of gradle.

<property name="pm-dir"                value="${PM-DIR}/${BUILD_NUM}" />
<property name="leis-dir"              value="${LEIS_DIR}/${BUILD_NUM}" />

<property name="proxy-name"             value="${PROXY_JAR_NAME}"/>
<property name="proxy-client-name"      value="${PROXY_CLIENT_JAR_NAME}"/>

<property environment="env"/>
<property name="java-home"              value="${env.JAVA_HOME}"/>

  <condition property="build-pm">
    <equals arg1="True" arg2="${BUILD_PM}" />
</condition>

<condition property="build-LEIS">
    <equals arg1="True" arg2="${BUILD_LEIS}" />
</condition>


<target name="build-LEIS-components" if="build-LEIS">

    <ant antfile="build.xml"
         target="clean"
         dir="${leis-dir}/LEIS"
         inheritAll="false"/>
    <ant antfile="build.xml"
         target="ejbdoclet"
         dir="${leis-dir}/LEIS/BusinessServices"
         inheritAll="false"/>
    <ant antfile="build.xml"
         target="jar"
         dir="${leis-dir}/LEIS"
         inheritAll="false"/>

    <ant antfile="build.xml"
         target="clean"
         dir="${leis-dir}/ETS/trunk/Entitlements"
         inheritAll="false"/>
    <ant antfile="build.xml"
         target="build"
         dir="${leis-dir}/ETS/trunk/Entitlements"
         inheritAll="false"/>

    <mkdir dir="${leis-dir}/JARS/APP-INF/lib/"/>

    <jar jarfile="${leis-dir}/JARS/APP-INF/lib/LEISConfig.jar">
        <fileset dir="LEIS/" includes="datetime.properties"/>
        <fileset dir="LEIS/" includes="log4j.properties"/>
        <manifest>
            <attribute name="Built-By" value="${user.name}"/>
        </manifest>
    </jar>
</target>


<!--========================================================================
Builds pm using the supplied RE build files, modified by us.
========================================================================-->
<target name="build-pm" if="build-pm">




    <!-- SPPResourceBundle Overrides -->
    <mkdir dir="${pm-dir}/pm2/deploy/propertyoverrides"/>
    <copy todir="${pm-dir}/pm2/deploy/propertyoverrides" overwrite="true">
        <fileset dir="olwpmconfig/propertyoverrides"/>
    </copy>

    <!-- copy build.properties into pm dir, complete with kodo key -->
    <copy file="olwpmconfig/build.properties"      todir="${pm-dir}/pm2/"            overwrite="true">
        <filterchain>         
               <replacetokens>
                   <token key="LOGGINGFLOOR" value="${PERFORMANCE_LOGGING_FLOOR}"/>
                   <token key="BEADIR" value="${BEA_HOME}"/>
               </replacetokens>
        </filterchain>
    </copy>

    <!--the actual Retail Express build scripts to create the pm-main.ear-->
    <echo message="Calling pm Build Script"/>
    <ant antfile='${pm-dir}/pm2/build/build.xml'          target='clean-build' inheritAll="false"/>

    <!--delete the extra copy of jdo.dtd-->
    <delete file="jdo.dtd" />

    <fileset id="required-pm-client-libs" dir="${pm-dir}/pm2/deploy/lib">
        <include name="*.jar"/>
        <include name="client/*.jar"/>
        <exclude name="*tests.jar"/>
    </fileset>

    <!-- Used to populate value of MANIFEST.MF Class-path attribute. Turns our set of "required" libs
     into a nice space separated string to place in the MANIFEST.MF. Property is used in the "dist"
     task's jar command. -->
    <pathconvert property="client-classpath"
                 refid="required-pm-client-libs"
                 pathsep=" "
                 dirsep="/">
        <map from="${pm-dir}/pm2/deploy/lib/" to=""/>
    </pathconvert>

    <jar update="true" jarfile="${pm-dir}/pm2/deploy/lib/pm-core.jar">
        <manifest>
            <attribute name="Class-Path" value="${client-classpath}"/>
            <attribute name="Main-Class" value="com.retailexp.pm.ui.util.SPPClientStartUp"/>
        </manifest>
    </jar>

    <!-- Creates a file Marimba/BigFix/WhatEver can use to track the version of pm installed on a machine -->
    <echo message="${pm_MAJOR_VERSION}.${BUILD_NUM}" file="${pm-dir}/pm2/deploy/lib/version.txt" append="false"/>

    <!-- Remove files we place on classpath from ears, Mantis 10624 -->
    <!-- pm -->
    <move file="${pm-dir}/pm2/deploy/dist/pm-main.ear" tofile="${pm-dir}/pm2/deploy/dist/old-pm-main.ear"/>
    <unzip src="${pm-dir}/pm2/deploy/dist/old-pm-main.ear" dest="${pm-dir}/pm2/deploy/dist/">
        <patternset>
            <include name="lib/pm-server-conf.jar"/>
        </patternset>
    </unzip>
    <move file="${pm-dir}/pm2/deploy/dist/lib/pm-server-conf.jar" tofile="${pm-dir}/pm2/deploy/dist/lib/old-pm-server-conf.jar"/>
    <zip file="${pm-dir}/pm2/deploy/dist/lib/pm-server-conf.jar">
        <zipfileset src="${pm-dir}/pm2/deploy/dist/lib/old-pm-server-conf.jar">
            <exclude name="log4j.properties"/>
            <exclude name="ehcache-transactional.xml"/>
        </zipfileset>
    </zip>
    <zip file="${pm-dir}/pm2/deploy/dist/pm-main.ear">
        <zipfileset src="${pm-dir}/pm2/deploy/dist/old-pm-main.ear">
            <exclude name="lib/pm-server-conf.jar"/>
        </zipfileset>
        <zipfileset dir="${pm-dir}/pm2/deploy/dist/lib/" includes="pm-server-conf.jar" fullpath="lib/pm-server-conf.jar"/>
    </zip>
    <!-- EDM -->
    <move file="${pm-dir}/pm2/deploy/dist/pm-edm.ear" tofile="${pm-dir}/pm2/deploy/dist/old-pm-edm.ear"/>
    <unzip src="${pm-dir}/pm2/deploy/dist/old-pm-edm.ear" dest="${pm-dir}/pm2/deploy/dist/">
        <patternset>
            <include name="lib/pm-server-conf.jar"/>
        </patternset>
    </unzip>
    <move file="${pm-dir}/pm2/deploy/dist/lib/pm-server-conf.jar" tofile="${pm-dir}/pm2/deploy/dist/lib/old-pm-server-conf.jar"/>
    <zip file="${pm-dir}/pm2/deploy/dist/lib/pm-server-conf.jar">
        <zipfileset src="${pm-dir}/pm2/deploy/dist/lib/old-pm-server-conf.jar">
            <exclude name="log4j.properties"/>
        </zipfileset>
    </zip>
    <zip file="${pm-dir}/pm2/deploy/dist/pm-edm.ear">
        <zipfileset src="${pm-dir}/pm2/deploy/dist/old-pm-edm.ear">
            <exclude name="lib/pm-server-conf.jar"/>
        </zipfileset>
        <zipfileset dir="${pm-dir}/pm2/deploy/dist/lib/" includes="pm-server-conf.jar" fullpath="lib/pm-server-conf.jar"/>
    </zip>
</target>

<!--========================================================================
Builds LEIS
========================================================================-->
<target name="build-proxy" if="build-LEIS">

    <!--copy deploy.properties with the proper jar names and locations-->
    <copy file="LEIS/deploy.properties"        todir="${leis-dir}/proxy/config/build/"    overwrite="true">
        <filterchain>
               <replacetokens>
                    <token key="pmCORE"            value="${pm_CORE_NAME}"/>
                    <token key="pmTRANSFER"        value="${pm_TRANSFER_NAME}"/>
                    <token key="PROXYJARNAME"       value="${PROXY_JAR_NAME}"/>
                    <token key="PROXYCLIENTJARNAME" value="${PROXY_CLIENT_JAR_NAME}"/>
                    <token key="PROXYLIBSDIR"       value="${leis-dir}/JARS/"/>
               </replacetokens>
        </filterchain>
    </copy>

     <ant antfile="build.xml" target="clean" dir="${leis-dir}/proxy" inheritAll="false" />
    <ant antfile="build.xml" target="prod-dist" dir="${leis-dir}/proxy" inheritAll="false">
        <property name="build.name" value="${pm_MAJOR_VERSION}.${BUILD_NUM}"/>
    </ant>

     <ear destfile="${ear-name}" appxml="LEIS/application.xml">
        <metainf dir="${leis-dir}/LEIS/conf/EAR/META-INF" includes="weblogic-application.xml"/>
        <fileset dir="${leis-dir}/JARS/"                   includes="*.jar"/>
        <fileset dir="${leis-dir}/JARS/"                   includes="APP-INF/**" excludes="APP-INF/lib/wlfullclient.jar"/>
    </ear>

    <!-- Place the proxy-client jar in the pm ear-->
    <zip update="true" destfile="${pm-dir}/pm2/deploy/dist/pm-main.ear">
        <zipfileset dir="${leis-dir}/proxy/dist/" includes="${proxy-client-name}" fullpath="APP-INF/lib/${proxy-client-name}"/>
    </zip>

</target>

<target name="build-cpc">
    <copy file="${pm-dir}/pm2/deploy/lib/${pm_TRANSFER_NAME}" todir="${leis-dir}/cpc-web-app/webapp/lib/cpc"/>
    <ant antfile="build.xml" target="build-all-environments" dir="${leis-dir}/cpc-web-app/webapp" inheritAll="false"/>
</target>

<target name="build-all">
    <antcall target="build-LEIS-components"/>
    <antcall target="build-pm"/>
    <antcall target="build-proxy"/>
    <antcall target="build-cpc"/>
</target>    </condition>

<condition property="build-LEIS">
    <equals arg1="True" arg2="${BUILD_LEIS}" />
</condition>


<target name="build-LEIS-components" if="build-LEIS">

    <!--Go through and build the LEIS modules-->
    <ant antfile="build.xml"
         target="clean"
         dir="${leis-dir}/LEIS"
         inheritAll="false"/>
    <ant antfile="build.xml"
         target="ejbdoclet"
         dir="${leis-dir}/LEIS/BusinessServices"
         inheritAll="false"/>
    <ant antfile="build.xml"
         target="jar"
         dir="${leis-dir}/LEIS"
         inheritAll="false"/>



    <ant antfile="build.xml"
         target="clean"
         dir="${leis-dir}/ETS/trunk/Entitlements"
         inheritAll="false"/>
    <ant antfile="build.xml"
         target="build"
         dir="${leis-dir}/ETS/trunk/Entitlements"
         inheritAll="false"/>


    <mkdir dir="${leis-dir}/JARS/APP-INF/lib/"/>


    <jar jarfile="${leis-dir}/JARS/APP-INF/lib/LEISConfig.jar">
        <fileset dir="LEIS/" includes="datetime.properties"/>
        <fileset dir="LEIS/" includes="log4j.properties"/>
        <manifest>
            <attribute name="Built-By" value="${user.name}"/>
        </manifest>
    </jar>
</target>


<target name="build-pm" if="build-pm">



    <mkdir dir="${pm-dir}/amp2/deploy/propertyoverrides"/>
    <copy todir="${pm-dir}/amp2/deploy/propertyoverrides" overwrite="true">
        <fileset dir="olwAMPconfig/propertyoverrides"/>
    </copy>

    <ant antfile='${pm-dir}/amp2/build/build.xml'          target='clean-build' inheritAll="false"/>

    <!--delete the extra copy of jdo.dtd-->
    <delete file="jdo.dtd" />

    <fileset id="required-amp-client-libs" dir="${pm-dir}/amp2/deploy/lib">
        <include name="*.jar"/>
        <include name="client/*.jar"/>
        <exclude name="*tests.jar"/>
    </fileset>

    <!-- Used to populate value of MANIFEST.MF Class-path attribute. Turns our set of "required" libs
     into a nice space separated string to place in the MANIFEST.MF. Property is used in the "dist"
     task's jar command. -->
    <pathconvert property="client-classpath"
                 refid="required-amp-client-libs"
                 pathsep=" "
                 dirsep="/">
        <map from="${pm-dir}/amp2/deploy/lib/" to=""/>
    </pathconvert>

    <jar update="true" jarfile="${pm-dir}/amp2/deploy/lib/amp-core.jar">
        <manifest>
            <attribute name="Class-Path" value="${client-classpath}"/>
            <attribute name="Main-Class" value="com.retailexp.amp.ui.util.SPPClientStartUp"/>
        </manifest>
    </jar>

    <!-- Creates a file Marimba/BigFix/WhatEver can use to track the version of AMP installed on a machine -->
    <echo message="${AMP_MAJOR_VERSION}.${BUILD_NUM}" file="${pm-dir}/amp2/deploy/lib/version.txt" append="false"/>

    <!-- Remove files we place on classpath from ears, Mantis 10624 -->
    <!-- AMP -->
    <move file="${pm-dir}/amp2/deploy/dist/amp-main.ear" tofile="${pm-dir}/amp2/deploy/dist/old-amp-main.ear"/>
    <unzip src="${pm-dir}/amp2/deploy/dist/old-amp-main.ear" dest="${pm-dir}/amp2/deploy/dist/">
        <patternset>
            <include name="lib/amp-server-conf.jar"/>
        </patternset>
    </unzip>
    <move file="${pm-dir}/amp2/deploy/dist/lib/amp-server-conf.jar" tofile="${pm-dir}/amp2/deploy/dist/lib/old-amp-server-conf.jar"/>
    <zip file="${pm-dir}/amp2/deploy/dist/lib/amp-server-conf.jar">
        <zipfileset src="${pm-dir}/amp2/deploy/dist/lib/old-amp-server-conf.jar">
            <exclude name="log4j.properties"/>
            <exclude name="ehcache-transactional.xml"/>
        </zipfileset>
    </zip>
    <zip file="${pm-dir}/amp2/deploy/dist/amp-main.ear">
        <zipfileset src="${pm-dir}/amp2/deploy/dist/old-amp-main.ear">
            <exclude name="lib/amp-server-conf.jar"/>
        </zipfileset>
        <zipfileset dir="${pm-dir}/amp2/deploy/dist/lib/" includes="amp-server-conf.jar" fullpath="lib/amp-server-conf.jar"/>
    </zip>
    <!-- EDM -->
    <move file="${pm-dir}/amp2/deploy/dist/amp-edm.ear" tofile="${pm-dir}/amp2/deploy/dist/old-amp-edm.ear"/>
    <unzip src="${pm-dir}/amp2/deploy/dist/old-amp-edm.ear" dest="${pm-dir}/amp2/deploy/dist/">
        <patternset>
            <include name="lib/amp-server-conf.jar"/>
        </patternset>
    </unzip>
    <move file="${pm-dir}/amp2/deploy/dist/lib/amp-server-conf.jar" tofile="${pm-dir}/amp2/deploy/dist/lib/old-amp-server-conf.jar"/>
    <zip file="${pm-dir}/amp2/deploy/dist/lib/amp-server-conf.jar">
        <zipfileset src="${pm-dir}/amp2/deploy/dist/lib/old-amp-server-conf.jar">
            <exclude name="log4j.properties"/>
        </zipfileset>
    </zip>
    <zip file="${pm-dir}/amp2/deploy/dist/amp-edm.ear">
        <zipfileset src="${pm-dir}/amp2/deploy/dist/old-amp-edm.ear">
            <exclude name="lib/amp-server-conf.jar"/>
        </zipfileset>
        <zipfileset dir="${pm-dir}/amp2/deploy/dist/lib/" includes="amp-server-conf.jar" fullpath="lib/amp-server-conf.jar"/>
    </zip>
</target>

<!--===============  Builds LEIS   ========================================================================-->
<target name="build-proxy" if="build-LEIS">


    <ant antfile="build.xml" target="clean" dir="${leis-dir}/proxy" inheritAll="false" />
    <ant antfile="build.xml" target="prod-dist" dir="${leis-dir}/proxy" inheritAll="false">
        <property name="build.name" value="${AMP_MAJOR_VERSION}.${BUILD_NUM}"/>
    </ant>

    <!--copy the proxy jar to the LEIS jars library-->
    <copy todir="${leis-dir}/JARS" flatten="true">
        <fileset dir="${leis-dir}/proxy/dist/" >
            <include name="${proxy-name}"/>
        </fileset>
    </copy>

    <!--create a directory to hold the LEIS ear contents-->
    <property name="ear.dir"            value="${leis-dir}/bin"/>
    <property name="ear-name"           value="${ear.dir}/LEIS_AMP.ear"/>
    <mkdir dir="${ear.dir}"/>

    <!--create the ear from the directories contents-->
    <ear destfile="${ear-name}" appxml="LEIS/application.xml">
        <metainf dir="${leis-dir}/LEIS/conf/EAR/META-INF" includes="weblogic-application.xml"/>
        <fileset dir="${leis-dir}/JARS/"                   includes="*.jar"/>
        <fileset dir="${leis-dir}/JARS/"                   includes="APP-INF/**" excludes="APP-INF/lib/wlfullclient.jar"/>
    </ear>

    <!-- Place the proxy-client jar in the amp ear-->
    <zip update="true" destfile="${pm-dir}/amp2/deploy/dist/amp-main.ear">
        <zipfileset dir="${leis-dir}/proxy/dist/" includes="${proxy-client-name}" fullpath="APP-INF/lib/${proxy-client-name}"/>
    </zip>

</target>

<target name="build-cpc">
    <copy file="${pm-dir}/amp2/deploy/lib/${AMP_TRANSFER_NAME}" todir="${leis-dir}/cpc-web-app/webapp/lib/cpc"/>
    <ant antfile="build.xml" target="build-all-environments" dir="${leis-dir}/cpc-web-app/webapp" inheritAll="false"/>
</target>

<!--=========================================    Build AMP and LEIS  --!>

<target name="build-all">
    <antcall target="build-LEIS-components"/>
    <antcall target="build-pm"/>
    <antcall target="build-proxy"/>
    <antcall target="build-cpc"/>
</target>

Answer 1

Simply use

ant.importBuild 'build.xml'

to import you whole ant script and replace the tasks one by one to get started. Later try to refactor your project into the gradle conventions so that your tasks become obsolete.

Answer 2

Ant and Gradle take some fundamentally different approaches to building java projects. Instead of trying to convert your Ant tasks to Gradle, you're likely to find it easier to use a combination of re-structuring of your project to use Gradle's conventions with some degree of customization.

In your particular case, I would take an incremental approach. Pick 1 of your 9 ant targets (like "build-pm") and focus on building that first. It should give you a good idea of how much effort you'll have to spend converting your ant tasks to gradle.