为什么 ant 每次运行都要编译所有类? [英] Why does ant compile all classes each run?

问题描述

我更习惯于make，所以我很困惑为什么ant在源代码没有改变的情况下重新编译类.我读到在某些使用泛型的情况下需要重新编译，但我不确定这对我的项目是否必要.

I'm more accustomed to make, so I'm confused why ant recompiles classes when the source hasn't been changed. I've read that there is a requirement to recompile in some cases where generics are used, but I'm not sure that this will be necessary for my project.

此外，在 javac 任务中，我设置了 includeDestClasses="true"

Also, in the javac task, I've set includeDestClasses="true"

这是我正在使用的一些目标

Here's some of the targets I'm using

<target name="init">
        <mkdir dir="${build}"/>
        <mkdir dir="${dist}"/>
    </target>
    <target name="compile" depends="init,util,semantics" description=""/>
    <target name="util" depends="" description="">
        <javac destdir="${build}" classpath="project.class.path" debug="on" srcdir="${src}/util" includeDestClasses="true" source="1.5">
            <classpath refid="project.class.path"/>
        </javac>
    </target>

推荐答案

尝试修改 javac 任务的开始标记以包含 srcdir 属性和 >includes 属性:

Try modifying the opening tag of the javac task to include both a srcdir attribute and an includes attribute:

<代码><javac destdir="${build}" classpath="project.class.path" debug="on" srcdir="${src}" includes="util/**" includeDestClasses="true" source="1.5>

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