Set the ant property by invoking a shell script?

Question

Is there a way to set the ant property by capturing shellscript output? (or other ant task)

Something like that:

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

Thanks!

Answer 1

The exec task seems to have an outputproperty property, for example:

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

Answer 2

In ANT, the exec task

• Set the output attribute: the name of the file in which the output will be written.
• As Marble suggested - set outputproperty

When I tested, they were mutually exclusive. Therefore, install only 1 of them at a time.

Answer 3

To extend the answer to @Nim, 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, for example:

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