Ant exec 命令参数处理多个文件

Question

I am using ant exec command to implement the less utility to view the source code of a bunch of .java files. (I know that there are other ways to do this like using concat )

So the call ant view works if I specify only one file:

<target name="view">
    <exec executable="less" dir=".">
        <arg value="Main.java"/>
    </exec>
</target>

But if I change my code to <arg value="*.java"/> to view all files, it actually searches for a file named *.java .

Apparently I can put a bunch of arg 's for each file, but is there a way to do this with one arg ?

Answer 1

The * glob is expanded by the shell on Unix-likes, that's why less doesn't do it itself.

Apart from <exec> there is <apply> which works on a resource collection:

<apply executable="less" dir="." parallel="true" relative="true">
  <fileset dir="." includes="*.java"/>
</apply>

Answer 2

You can use foreach which requires ant-contrib

<target name="view">
  <foreach target="call-less" param="file">
    <fileset dir="${src}" includes="**/*.java" />
  </foreach>
</target>

<target name="call-less">
    <exec executable="less">
        <arg value="${file}" />
    </exec>
</target>