setting the location of database migration changelogs to be in a Grails plugin

CoreGrailsPlugin.groovy

import org.codehaus.groovy.grails.plugins.PluginManagerHolder

...

def doWithConfig = { config ->
      // Here we need to tell the database migrations plugin the change log is in the s5-core plugin
      try {
        def pluginManager = PluginManagerHolder.pluginManager
        def plugin = pluginManager.getGrailsPlugin('s5-core')
        def pluginDir = org.codehaus.groovy.grails.plugins.GrailsPluginUtils.getPluginDirForName('s5-core')?.path
        config.grails.plugin.databasemigration.changelogLocation = "$pluginDir/grails-app/migrations"
      } catch (Exception e) {
        println "Error in doWithConfig $e"
      }

    }