build-support/download_depends.xml

<?xml version="1.0" encoding="utf-8" ?>
 <!--
 * Licensed to the Apache Software Foundation (ASF) under one   *
 * or more contributor license agreements.  See the NOTICE file *
 * distributed with this work for additional information        *
 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
 * with the License.  You may obtain a copy of the License at   *
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 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
 * KIND, either express or implied.  See the License for the    *
 * specific language governing permissions and limitations      *
 * under the License.                                           *
 -->
<project name="download_depends" default="download" basedir=".">


    <!-- check parameters -->
    <condition property="params.available">
        <and>
            <isset property="download-url"/>
            <isset property="download-dirname"/>
            <isset property="download-filename"/>
            <isset property="dest-dirname"/>
        </and>
    </condition>

    <!-- check externals folder -->
    <condition property="externals.available">
        <available file="${unzip-dest}"/>
    </condition>

    <!-- check for os family -->
    <condition property="do-download-windows">
        <and>
            <not><isset property="externals.available"/></not>
            <os family="windows"/>
        </and>
    </condition>
    <condition property="do-download-linux">
        <and>
            <not><isset property="externals.available"/></not>
            <os family="unix"/>
        </and>
    </condition>

    <target name="check-params" unless="params.available">
        <fail message="missing parameters."/>
    </target>

    <target name="info" if="externals.available">
        <echo message="${unzip-dest} already available, doing nothing"/>
    </target>

    <target name="download" depends="check-params, info, download-windows, download-linux">
    </target>

    <target name="download-windows" if="do-download-windows">
        <echo message="downloading externals for windows"/>
        <mkdir dir="${download-dirname}" />
        <get src="${download-url}" dest="${download-dirname}${file.separator}${download-filename}"/>
        <unzip src="${download-dirname}${file.separator}${download-filename}" dest="${dest-dirname}"/>
    </target>
    <target name="download-linux" if="do-download-linux">
        <echo message="downloading externals for linux"/>
	<mkdir dir="${download-dirname}" />
        <get src="${download-url}" dest="${download-dirname}${file.separator}${download-filename}"/>
        <mkdir dir="${dest-dirname}"/>
        <exec executable="pwd"></exec>
	<exec executable="tar" output="info.txt">
            <arg value="-xvpzf" />
            <arg value="${download-dirname}${file.separator}${download-filename}" />
            <arg value="-C" />
            <arg value="${dest-dirname}" /> 
	</exec>
    </target>

    <target name="clean" depends="check-params">
	<delete dir="${dest-dirname}" failonerror="true"/>
    </target>

</project>