maven-antrun-plugin on windows and linux - linux

Question

I am trying to get my maven project to work on both windows 7 and ubuntu 13.04. In a pom.xml file I use maven-antrun-plugin to call scons which I have installed on both my linux and windows machine. On both os's I have verified that I can run scons from shell/cmd so its on the PATH. The pom looks like this:
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<id>run-scons</id>
<phase>generate-resources</phase>
<configuration>
<target name="run-scons">
<exec executable="scons" dir="${basedir}/../../../" failonerror="true">
<arg value="-j4" />
</exec>
</target>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
But when I build on windows7 I get:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (run-scons) on project my-project: An Ant BuildExcept
ion has occured: Execute failed: java.io.IOException: Cannot run program "scons" (in directory "C:\Users\u\samples"): CreateProcess error=2,
The system cannot find the file specified
[ERROR] around Ant part ...<exec dir="C:\Users\u\samples...." executable="scons" failonerror="true">
If I open a cmd and run it from there I get:
C:\Users\u\samples\>scons
scons: Reading SConscript files ...
Using configuration: scons/win32mscdbg.py
Why can't I call scons from the antrun plugin? If I specify the full path to scons on windows it works (eg. C:\Python26\Scripts\scons.bat) but that is a no-go since developers are only required to have scons in their path, but can decide the location themselves.

Answer 1

Would maven exec plugin make a difference?
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<id>run-scons</id>
<phase>generate-resources</phase>
<goals>
<goal>exec</goal>
</goals>
</execution>
</executions>
<configuration>
<executable>scons</executable>
<workingDirectory>${basedir}/../../../</workingDirectory>
<arguments>
<argument>-j4</argument>
</arguments>
</configuration>
</plugin>
I can't test this, but it looks like you can run bat files (1, 2) as "executables" in maven as opposed to ant where you run the shell with the bat file as argument (read here under win users). The linked examples are all with absolute path, which is not your case. I advise to try and feedback.

Answer 2

This approach has worked for me with other commands.
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<id>run-scons</id>
<phase>generate-resources</phase>
<goals>
<goal>run</goal>
</goals>
<configuration>
<target>
<!-- TODO: fill in the correct os property value -->
<exec executable="scons" dir="${basedir}/../../../" failonerror="true"
os="<os.name property value for Ubuntu>"
<arg value="-j4" />
</exec>
<exec executable="cmd" dir="${basedir}/../../../" failonerror="true"
os="Windows 7"
<arg line="/C scons />
<arg value="-j4" /> <!-- /j4 on windows? never used scons -->
</exec>
</target>
</configuration>
</execution>
</executions>
</plugin>