How to iterate over the file content using Ant script?

I need to read data from a file and do some further processing on that.

Actually I need to zip only those files which are modified. So prepared a tracksheet.txt which contains the list of all开发者_开发问答 modified files in source code.

Read each file from the tracksheet.txt file, fetch it from svn and zip it.

---

You could load the contents of the file using Ant's loadfile task. For example, assuming each entry is on a separate line, it would look something like this:

<loadfile
  property="changed.files"
  srcFile="tracksheet.txt">
  <filterchain>
    <striplinebreaks/>
  </filterchain>
</loadfile>

Then you can use Ant-Contrib's for or foreach task to loop over all the values in the property. For example:

<for list="${changed.files}" param="changedFile">
  <sequential>
    <echo>TODO fetch the file @{changedFile} from SVN</echo>
    <echo>TODO zip the file @{changedFile}</echo>
  </sequential>
</for>

Note that Ant-Contrib is not part of the standard install. You need a separate jar. Installation/usage instructions are on the website: http://ant-contrib.sourceforge.net

---

Similar to Chris his answer:

<loadfile property="changed.files" srcFile="tracksheet.txt"/>

<for list="${changed.files}" param="changedFile" delimiter="${line.separator}">
  <sequential>
    <echo>@{changedFile}</echo>
  </sequential>
</for>