Set ant property by invoking a shell script?

问题

Is there any way to set an ant property by capturing the output of a shellscript? (or another ant task)

Something like this:

<property name="foo">
    <value>
        <exec executable="bar" />
    </value>
</property>

Thanks!

回答1:

It seems that exec task has an outputproperty-property, like so:

<exec executable="bar" outputproperty="foo" />

回答2:

From the ANT exec task

1. Set the output attribute : Name of a file to which to write the output.
2. As Marble has suggested - set the outputproperty

When I tested they came out to be mutually exclusive. So set only 1 of them at a time.

回答3:

To expand on @Nim's answer, complex commands can be generated using arg tags:

<exec executable="/usr/bin/git" outputproperty="git.branch">
  <arg value="rev-parse"/>
  <arg value="--abbrev-ref"/>
  <arg value="HEAD"/>
</exec>

This can be referenced later like:

<attribute name="Git-Branch" value="${git.branch}"/>

来源：https://stackoverflow.com/questions/12364467/set-ant-property-by-invoking-a-shell-script