Hi, all
I have an exec task which runs the Installshield command line utility to build the
installation for my app. Mostly, this is a standard task which I would like to put
into a common build file. However, each project might need to pass different
parameters. I want the task to only pass each parameter if the relevant property is
defined:
<exec program="C:\Program Files\InstallShield X\System\IsCmdBld.exe">
<arg value="-p "${prj.ism}""/>
<arg value="-b "${prj.out}"" if="${property::exists('prj.out')}"/>
</exec>
This particular <arg> tag tells it to build the installation to the location specified
in the property prj.out. If that property is not defined, then it will use the
default location by not passing this parameter. (The -p parameter is always required,
which is why that doesn't have an if attribute). However, this doesn't work since the
value attribute uses the prj.out property, which might not exist, and the properties
in this attribute are expanded even if the condition evaluates to false.
I tried this (just on an off-chance):
<exec program="C:\Program Files\InstallShield X\System\IsCmdBld.exe">
<arg value="-p "${prj.ism}""/>
<if test="${property::exists('prj.out')}">
<arg value="-b "${prj.out}""/>
</if>
</exec>
which stops it failing, but the <arg> element is never actually used.
Any ideas?
Thanks
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