LiquiBase - Passing Parameter From CommandLine Or Properties to Changeset XML

Question

I am trying to pass a parameter from my update command as well as the liquibase properties file to my changeset. For some reason, it does not recognise the placeholder as a para

Answer 1

I have a requirement like calling a .bat file with parameters from liquibase upgrade scripts. Also also this should run only one time like change set.

Thanks, Jagadeesh

Answer 2

Rather than using this in your changelog:

<changeSet author="tobi" id="preMigration" runAlways="true">
    <executeCommand executable="C:\myBatFile.bat">
        <arg value="${liquibase.properties.Dparamname}"/>
        <arg value="${liquibase.properties.url}"/>
    </executeCommand>  
</changeSet>

it should look more like this:

<changeSet author="tobi" id="preMigration" runAlways="true">
    <executeCommand executable="C:\myBatFile.bat">
        <arg value="${paramname}"/>
        <arg value="${url}"/>
    </executeCommand>  
</changeSet>

The -D on the command line is the standard java mechanism for setting system properties, but when accessing them you just use the property name. I am fairly certain that you don't need to use the liquibase.properties prefix either.