Check multiple file exists or not using ANT

问题

I am using ANT to check count for set of files in two jars. I am not able to check whether the files of same pattern exists or not.

for e.g. I have 2 files like /host/user/dir1/ABC1.txt and /host/user/dir1/ABC2.txt.

now i want to check whether the file of pattern "/host/user/dir1/ABC*" present or not ??

I can check individual file /host/user/dir1/ABC1.txt, using available tag, but not able to check the files for specific pattern.

thanks in advance.

For individual file, following works fine:

<if>
    <available file="${client.classes.src.dir}/${class_to_be_search}.class"/>
    <then>
         <echo> File ${client.classes.src.dir}/${class_to_be_search}.class FOUND in src dir 

         </echo>
         <echo> Update property client.jar.packages.listOfInnerClass</echo>
    </then>
    <else>
         <echo> File ${client.classes.src.dir}/${class_to_be_search}.class NOT FOUND      in src dir.  
         </echo>
    </else>
</if>

But i want to search for multiple files: something like : ${dir.structure}/${class_to_be_search}$*.class

回答1:

The if task is not part of core ANT.

The following example shows how it can be done using the ANT condition task. You can use whatever pattern you want in the fileset. The target execution is subsequently conditional on how the "file.found" property has been set:

<project name="demo" default="run">

    <fileset id="classfiles" dir="build" includes="**/*.class"/>

    <condition property="file.found">
        <resourcecount refid="classfiles" when="greater" count="0"/>
    </condition>

    <target name="run" depends="found,notfound"/>

    <target name="found" if="file.found">
        <echo message="file found"/>
    </target>

    <target name="notfound" unless="file.found">
        <echo message="file not found"/>
    </target>

</project>

来源：https://stackoverflow.com/questions/15698694/check-multiple-file-exists-or-not-using-ant

标签

ant

ant-contrib