Question

Q: How can I run a program only if certain conditions are met?

How can I run a program only if certain conditions are met?

Answer:

The following example shows how a particular script will be executed only if the installation type is 'server', it is running on Linux and a certain file is not already present in the system. The value for the installation type was set during the installation process using a user-defined parameter, as explained earlier in this document.

<runProgram>
            <ruleEvaluationLogic>and</ruleEvaluationLogic>
                <ruleList>
                    <compareText>
                        <text>${installtype}</text>
                        <logic>equals</logic>
                        <value>server</value>
                    </compareText>
                    <compareText>
                        <text>${platform_name}</text>
                        <logic>equals</logic>
                        <value>linux</value>
                    </compareText>
                    <fileTest>
                        <path>/etc/init.d/myservice</path>
                        <condition>not_exists</condition>
                    </fileTest>
                </ruleList>
             <program>${installdir}/bin/install_service.sh</program>
        </runProgram>