我如何知道驱动器的可用空间通过Ant脚本

Question

我们是否可以通过Ant Script知道任何驱动器的空闲空间，因为我在我的部署Ant脚本中复制一个300mb大小的文件夹，所以我想在复制之前确认该驱动器中有超过300mb的空间。

Answer 1

查看hasfreespace: http://ant.apache.org/manual/Tasks/conditions.html

<?xml version="1.0"?> 
<project name="test" default="test" basedir="."> 
     <target name="test" depends="exists,not-exists">  
          <echo message="Test target"/>
     </target>
     <target name="exists" if="space-exists">  
          <echo message="Space exists"/>
     </target>
     <target name="not-exists" unless="space-exists">  
          <echo message="Space does not exist"/>
     </target>
     <condition property="space-exists"> 
          <!-- Change this to 10000G to see it failing -->
          <hasfreespace partition="/" needed="1M"/>
     </condition>
</project>

Answer 2

我使用了以下方法:

<echo message="Checking free space on drive D:" />
<fail message="Drive D: has less than 10 Gb" >
    <condition>
        <not>
            <hasfreespace partition="d:" needed="10G"/>
        </not>
    </condition>
</fail>
<echo message="Drive D: has 10 Gb or more" />

脚本将失败，如果驱动器小于10gb