Grails version auto-detection

I've implemented a little helper script that helps being more productive when working with multiple Grails versions. If the current working directory is a grails application, the scripts detects the version (via application.properties), sets the GRAILS_HOME environment variable and executes the appropriate Grails executable.

#!/bin/bash

GRAILS_BASE=/opt/grails
DEFAULT_VERSION="1.0.4" 

ARGS=$@           
EXECUTABLE="grails"

if [ -f application.properties ]; then                                                                             
  GRAILS_VERSION=$( cat application.properties | grep "app.grails.version=" | sed -e "s/^.*=//" | tr -d '\r\n ' )
  echo "Detected Grails $GRAILS_VERSION"  
else
  echo "Using default Grails $DEFAULT_VERSION"
  GRAILS_VERSION=$DEFAULT_VERSION
fi

GRAILS_VERSION_DIR="$GRAILS_BASE/grails-$GRAILS_VERSION"

if [ ! -d $GRAILS_VERSION_DIR ]; then
  echo "Grails Version $GRAILS_VERSION is not installed! ($GRAILS_BASE/grails-$GRAILS_VERSION)"    
  exit 1
fi

export GRAILS_HOME=$GRAILS_VERSION_DIR
$GRAILS_VERSION_DIR/bin/$EXECUTABLE $ARGS

"Show GSP Source" Bookmarklet

It's not a huge improvement, just a simple little helper when you do some GSP debugging in Grails. Just drag the following link to your bookmarks bar and invoke it when you browse a grails application in development mode:

« Show GSP Source »

The Javascript Bookmarklet should then open a new window with the same URL but with the "showSource" parameter appended so you can see the generated Groovy Code.

Tested in Firefox and Safari (probably also works in IE).

Grails Ext Userinterface

I'm currently working on a plugin for the Grails Web Framework. It's called "Grails-ext-ui" and can be used as an instant administration interface for the domain model. Based on the great Ext Javascript Library and my previous work, the Grails Converters Plugin it provides basic CRUD functionality like the classic Grails Scaffolding, but in a dymamic way without the need to generate anything. It is not really extensible, but it has some options to configure it and it leverages some constraint options of domain class properties (widget etc.).
















I have set up a live demo:
http://dev.puchbauer.com/extui/extUi (Demo already down)

Have fun!