CODEWITHSUNDEEP
ant
fender5bass
fender5bass

Reputation: 33

Copying files in fileset if a file of the same name exists with a specific suffix at the end

I am using a third party build script creates minified js files with the minified file called 'someFile.js' and an unminified version called 'someFile.js.uncompressed.js'. I need one of my tasks in the build.xml to copy only the js files that have a partner '.uncompressed.js' file to another location. For example, given a directory structure like this:

- rootDirectory
  - minified.js
  - minified.js.uncompressed
  - unminified.js
  - anotherDirectory
    - anotherMinified.js
    - anotherMinified.js.uncompressed.js
    - unminified.js
    - anotherUnminified.js

the destination directory should end up like this:

- rootDirectory
  - minified.js
  - anotherDirectory
    - anotherMinified.js

Is there any way to accomplish this with ant? I am using ant 1.8.1.

Thanks in advance for any help!

Upvotes: 2

Views: 755

Answers (2)

martin clayton
martin clayton

Reputation: 78115

You can use an Ant <present> selector to do this. For example:

<copy todir="dest">
    <fileset dir="src">
        <present targetdir="src">
            <mapper type="glob" from="*" to="*.uncompressed.js" />
        </present>
    </fileset>
</copy>

In this case the targetdir in the selector is the same as the root directory of the fileset.

What this does is copy any file in the src directory tree where a file with the same name, with .uncompressed.js appended also present.

Upvotes: 3

Mark O&#39;Connor
Mark O&#39;Connor

Reputation: 77971

You could use a custom scriptselector for your fileset.

Example

├── build.xml
├── src
│   └── rootDirectory
│       ├── anotherDirectory
│       │   ├── anotherMinified.js
│       │   ├── anotherMinified.js.uncompressed
│       │   ├── anotherUnminified.js
│       │   └── unminified.js
│       ├── minified.js
│       ├── minified.js.uncompressed
│       └── unminified.js
└── target
    └── rootDirectory
        ├── anotherDirectory
        │   └── anotherMinified.js
        └── minified.js

build.xml

<project name="demo" default="copy-files">

   <target name="copy-files">
      <copy todir="target">
         <fileset dir="src">
            <scriptselector language="javascript">
               importClass(java.io.File);
               var testForFile = new File("src/" + filename + ".uncompressed");
               self.setSelected(testForFile.exists());
            </scriptselector>
         </fileset>
      </copy>
   </target>

   <target name="clean">
      <delete dir="target"/>
   </target>

</project>

Notes:

  • This should work without the need for additional jars. Javascript is supported by modern JVMs.

Upvotes: 1

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