如何在ant文件集或src中使用通配符

Question

Using ant 1.5 I am trying to create a jar file with files compiled under product directory that can constantly change the build name

/target
   |---myapp-1.3.5-SNAPSHOT
          |--- WEB-INF
                 |---classes
                 |---i18n

It's kind of picky but I have to make a jar file that still keep the web structure

|---myapp-utility.jar
       |--- WEB-INF
              |---classes
              |---i18n

That means I have to put wild card to identify the directory with build and snapshot

<jar destfile="myapp-utility.jar">
    <manifest>
        ....
    </manifest>
    <fileset dir="myapp-**/"/>
</jar>

and it doesn't work, wild card is not recognized. So what is the alternative?

Answer 1

Ant 1.5 is a very old version of Ant. If you can use at least Ant 1.8.2 (released in 2010), you can use the following...

<jar destfile="myapp-utility.jar">
    <mappedresources>
        <fileset dir="target">
            <include name="myapp-*/**"/>
        </fileset>
        <cutdirsmapper dirs="1"/>
    </mappedresources>
</jar>

The <mappedresources> resource collection wraps the <fileset> element and then applies a mapper to the results.

It's true that the dir of <fileset> can't handle wildcards. Luckily, <include> can handle wildcards. So, the above puts the wildcard test into <include> . The ** ensures all files under myapp-* are matched.

Finally, <cutdirsmapper> removes the myapp-1.3.5-SNAPSHOT/ part from each file.

Answer 2

You can use pathconvert to analyze the wildcard specification:

<pathconvert property="myapp.dir">
    <dirset dir="target" includes="myapp-*"/>
</pathconvert>

<jar destfile="myapp-utility.jar">
    <manifest>
        <!-- .... -->
    </manifest>
    <fileset dir="${myapp.dir}"/>
</jar>