Following the reference docs to to upgrade a Grails 2.x plugin to Grails 3.x I was thrown off by Step 2 - Copy sources from the original Grails 2 plugin.
Specifically cp -rf ../quartz-2.x/QuartzGrailsPlugin.groovy src/main/groovy/grails/plugins/quartz
Does this mean I am to create the directories for grails/plugins/quartz in src/main/groovy/as it does not exist.
I wrote this plugin which automatically copies source files from a Grails 2 plugin/app to a Grails 3 plugin/app during an upgrade.