JavaFX download ant

build.xml

<project name="test" default="download-javafx" basedir=".">
    <target name="download-javafx" depends="download-javafx-windows,download-javafx-mac,download-javafx-linux,copy-native-current,copy-native-target">
        <echo>Windows:</echo>
        <echo> current.platform.windows=${current.platform.windows}</echo>
        <echo> target.platform.windows=${target.platform.windows}</echo>
        <echo> javafx.windows.needed=${javafx.windows.needed}</echo>
        <echo> javafx.windows.found=${javafx.windows.found}</echo>
        <echo/>
        <echo>Mac:</echo>
        <echo> current.platform.mac=${current.platform.mac}</echo>
        <echo> target.platform.mac=${target.platform.mac}</echo>
        <echo> javafx.mac.needed=${javafx.mac.needed}</echo>
        <echo> javafx.mac.found=${javafx.mac.found}</echo>
        <echo/>
        <echo>Linux:</echo>
        <echo> current.platform.linux=${current.platform.linux}</echo>
        <echo> target.platform.linux=${target.platform.linux}</echo>
        <echo> javafx.linux.needed=${javafx.linux.needed}</echo>
        <echo> javafx.linux.found=${javafx.linux.found}</echo>
        <echo/>
    </target>

    <!-- Gets the javafx version and version url -->
    <target name="get-javafx-version">
        <!-- <property file="ant/project.properties"/> -->
        <property name="javafx.version" value="11.0.2"/>
        <property name="javafx.mirror" value="https://gluonhq.com/download"/>
        <property name="lib.dir" value="lib"/>
        <property name="dist.dir" value="out/dist"/>
        <!-- end properties -->

        <loadresource property="javafx.version-url">
            <propertyresource name="javafx.version"/>
            <filterchain>
                <tokenfilter>
                    <filetokenizer/>
                    <replacestring from="." to="-"/>
                </tokenfilter>
            </filterchain>
        </loadresource>
    </target>

    <!-- Flags if javafx is needed for a particular platform-->
    <target name="check-javafx-needed" depends="get-javafx-version">
        <condition property="javafx.windows.needed" value="true">
            <or>
            <isset property="current.platform.windows"/>
            <isset property="target.platform.windows"/>
            </or>
        </condition>
        <condition property="javafx.mac.needed" value="true">
            <or>
            <isset property="current.platform.mac"/>
            <isset property="target.platform.mac"/>
            </or>
        </condition>
        <condition property="javafx.linux.needed" value="true">
            <or>
            <isset property="current.platform.linux"/>
            <isset property="target.platform.linux"/>
            </or>
        </condition>
    </target>

    <!-- Downloads and extracts javafx for Windows -->
    <target name="download-javafx-windows" if="javafx.windows.needed" unless="javafx.windows.found" depends="check-javafx-needed,check-javafx-found">
        <antcall target="download-javafx-platform">
            <param name="javafx.platform" value="windows"/>
        </antcall>
    </target>

    <!-- Downloads and extracts javafx for macOS -->
    <target name="download-javafx-mac" if="javafx.mac.needed" unless="javafx.mac.found" depends="check-javafx-needed,check-javafx-found">
         <antcall target="download-javafx-platform">
            <param name="javafx.platform" value="mac"/>
        </antcall>
    </target>

    <!-- Downloads and extracts javafx for linux -->
    <target name="download-javafx-linux" if="javafx.linux.needed" unless="javafx.linux.found" depends="check-javafx-needed,check-javafx-found">
         <antcall target="download-javafx-platform">
            <param name="javafx.platform" value="linux"/>
        </antcall>
    </target>

    <!-- Downloads and extracts javafx for the specified platform -->
    <target name="download-javafx-platform">
        <get src="${javafx.mirror}/javafx-${javafx.version-url}-sdk-${javafx.platform}/" verbose="true" dest="javafx-${javafx.platform}.zip"/>
        <unzip src="javafx-${javafx.platform}.zip" dest="${lib.dir}" overwrite="true"/>
        <delete file="javafx-${javafx.platform}.zip"/>
    </target>

    <!-- Removes old javafx versions -->
    <target name="cleanup-javafx" depends="get-javafx-version">
        <delete>
            <fileset dir="${lib.dir}">
                <include name="**/javafx*/**"/>
                <exclude name="**/javafx*${javafx.version}*/**"/>
            </fileset>
        </delete>
    </target>

    <!-- Copies native libraries for current platform -->
    <target name="copy-native-current" depends="check-javafx-needed">
        <condition property="javafx.current.extension" value="dll">
            <isset property="current.platform.windows"/>
        </condition>
        <condition property="javafx.current.extension" value="dylib">
            <isset property="current.platform.mac"/>
        </condition>
        <condition property="javafx.current.extension" value="so">
            <isset property="current.platform.linux"/>
        </condition>
        <echo>javafx.current.extension=${javafx.current.extension}</echo>

        <antcall target="copy-native-platform">
            <param name="dest.dir" value="${dist.dir}"/>
            <param name="prefix.pattern" value="javafx*/"/>
            <param name="native.extension" value="${javafx.current.extension}"/>
        </antcall>
    </target>

    <!-- Copies native libraries for target platform -->
    <target name="copy-native-target">
        <condition property="javafx.target.extension" value="dll">
            <isset property="target.platform.windows"/>
        </condition>
        <condition property="javafx.target.extension" value="dylib">
            <isset property="target.platform.mac"/>
        </condition>
        <condition property="javafx.target.extension" value="so">
            <isset property="target.platform.linux"/>
        </condition>
        <echo>javafx.target.extension=${javafx.target.extension}</echo>

        <antcall target="copy-native-platform">
            <param name="dest.dir" value="${dist.dir}"/>
            <param name="prefix.pattern" value="javafx*/"/>
            <param name="native.extension" value="${javafx.target.extension}"/>
        </antcall>
    </target>

    <!-- Copies native libraries for specified platform -->
    <target name="copy-native-platform">
        <copy todir="${dest.dir}/libs" flatten="true">
            <fileset dir="${lib.dir}">
                <include name="${prefix.pattern}**/*.${native.extension}"/>
            </fileset>
        </copy>
    </target>

    <!-- Flags if javafx is already downloaded for a particular platform -->
    <target name="check-javafx-found" depends="cleanup-javafx">
        <first id="windows-found">
            <fileset dir="${lib.dir}">
                <include name="**/glass.dll"/>
            </fileset>
        </first>
        <condition property="javafx.windows.found" value="${toString:windows-found}">
            <not><equals arg1="${toString:windows-found}" arg2=""/></not>
        </condition>
        <property name="javafx.windows.files" value="${toString:windows-found}"/>

        <first id="mac-found">
            <fileset dir="${lib.dir}">
                <include name="**/libglass.dylib"/>
            </fileset>
        </first>
        <condition property="javafx.mac.found" value="${toString:mac-found}">
            <not><equals arg1="${toString:mac-found}" arg2=""/></not>
        </condition>
        <property name="javafx.mac.files" value="${toString:mac-found}"/>

        <first id="linux-found">
            <fileset dir="${lib.dir}">
                <include name="**/libglass.so"/>
            </fileset>
        </first>
        <condition property="javafx.linux.found" value="${toString:linux-found}">
            <not><equals arg1="${toString:linux-found}" arg2=""/></not>
        </condition>
        <property name="javafx.linux.files" value="${toString:linux-found}"/>
    </target>
</project>