How to change one line in a file using NAnt?

Question

I need to use NAnt to update one specific line in a .js file. The line will be something like:

global.ServerPath = 'http://server-path/';

I need a way to update the "server-path" part of that line with that of the destination server.
ReplaceString is no good, since I won't know what the path in the file is when I update it.

Any help?

Thanks in advance

Answer 1

If string::replace doesn't work <regex> can do the job. This is it:

<?xml version="1.0" encoding="utf-8" ?>
<project name="replace.line" default="replace">
  <target name="replace" descripton="replaces a line">
    <property
      name="js.file"
      value="C:\foo.js" />
    <loadfile file="${js.file}" property="js.file.content" />
    <regex
      input="${js.file.content}"
      pattern="(?'BEFORE'.*)global\.ServerPath\s*=\s*'[^']*';(?'AFTER'.*)" />
    <echo
      file="${js.file}"
      message="${BEFORE}global.ServerPath = 'http://bla/';${AFTER}"
      append="false" />
  </target>
</project>