How do generate a directory path with double-backslash or forward-slash separators?

Question

I am writing a directory path to a text file from ant, which is later read by a Java Application to find another file.

In my ant script I have:

<property name="fulltrainer.dir"  location="${trainer.dir}" />

<echo file="${trainer.dir}/properties/commonConfig.properties"># KEY         VALUE
CurrentBuildFile=${fulltrainer.dir}\current_build</echo>

in the build.properties file trainer.dir is set to:

trainer.dir=../trainer

It ends up writing:

# KEY        VALUE
CurrentBuildFile=C:\Workspaces\ralph\trainer\current_build

to the commonConfig.properties file.

I need it to write:

# KEY        VALUE
CurrentBuildFile=C:\\Workspaces\\ralph\\trainer\\current_build

or, I need it to write:

# KEY        VALUE
CurrentBuildFile=C:/Workspaces/ralph/trainer/current_build

How can I do that?

Answer 1

This looks a lot like this question: http://stackoverflow.com/questions/1799684/ant-basedir-slashes-escape-problem

So, try using the pathconvert task.

<pathconvert targetos="unix" property="fulltrainer.unix_dir">
    <path location="${trainer.dir}"/>
</pathconvert>

<property name="cf.props" value="${trainer.dir}/properties/commonConfig.properties"/>
<echo file="${cf.props}" message="# KEY         VALUE"/>
<echo file="${cf.props}" append="yes" message="CurrentBuildFile=${fulltrainer.unix_dir}/current_build"/>