Ant multi OS <exec> advice

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Meetlint - 07 Apr 2005 18:22 GMT

Hi,

I have the following Ant code which I would like to also use on Linux:

<target name="build.XmlJaxb">
<exec dir="${checkout.dest}/XmlJaxb" executable="cmd">
<arg line="/C ant -logger org.apache.tools.ant.XmlLogger
-logfile ant_log_dist.xml dist" />
</exec>
</target>

For Linux I woul dneed to replace "cmd" and "/C" with "bash" or something?

I know there is the <exec> OS option but then I would need to copy the
<exec> tags with a Windows and Linux version. Gives maintenance errors.

I know I could make variables for "cmd" and "/C" and use the <if>
contrib to look at the os Java system property.

I cannot use <ant> task because I do not seem to be able to specify the
Xml logger and the output file.

any ideas?

thanks,
Peter

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"." - 08 Apr 2005 17:15 GMT

> Hi,
>
[quoted text clipped - 19 lines]
>
> any ideas?

I usually do something like:

    <condition property="cmd" value="cmd.exe>
        <os family="windows"/>
    </condition>
    <property name="cmd" value="bash"/>

Now I can use ${cmd} for the executable. I can do the same thing for the
command line arguments.

The way it works is, if the condition (os family="windows") is true then
cmd=cmd.exe. The <property> tag will do nothing if cmd is already set. If
the condition is false then the <property> tag will set cmd=bash.

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Ant multi OS <exec> advice

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