My IntelliJ New Project Dialog now has a Grails option, though I'm not sure exactly what caused it to appear.
Here are some things that I did:
On the command line, in an already existing Grails project I ran:
grails integrate-with --intellij
Then I opened the project (which involved migrating the legacy version IntelliJ project file that Grails created to IntelliJ 13)
There was a green box in the upper right corner of the project window that complained about the Grails SDK was not being configured. That box disappeared before I could click on the link inside of it to attempt to correct the problem.
I closed the project and re-opened it, in the hope of causing the green box to reappear. It did not. But a red box appeared that complained that the Java SDK was not configured properly.
In the Project Structure Dialog I configured a Java SDK.
I closed the Grails project, then I tried to create a new Grails project. This time there was a Grails option under the Groovy option.
But I think there is still issue because the dialog shows No library selected
for Groovy.
Groovy is included as part of Grails, so perhaps I should click the "Create..." button and choose some Groovy installation that is packaged in the Grails installation? But, this seems like something I would expect IntelliJ to configuration automatically when it is linked to the Grails installation.