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Dynamically Referencing A Folder Relative To The Executable Location

by Tom Purl :: Rate this Message:

I am writing a command-line that I would like to execute from any location. Here's one example of how I would invoke it:

c:\Dev > gscript.bat add-app HelloWorld

Note: Assume that gscript.bat is located under "C:\Program Files\gscript\bin", and that this folder is also part of my PATH variable.

My Groovy script (which is wrapped by gscript.bat) would then do the following:

1. Create the "C:\Dev\HelloWorld" directory
2. copy some files from "C:\Program Files\gscript\data" to "C:\Dev\HelloWorld".

This script needs to know about two folders:

1. Current working directory - this is easy, it's just "new File(".").getCanonicalPath()
2. The location of the "data" dir. This is the hard part, because I don't want to force myself or anyone else to install my script in a particular directory.

One way to find the "data" dir would be to use a %GSCRIPT_HOME% environment variable. This works, but it requires users to add yet another environment variable.

Does anyone know of a smarter way to do this? Can I dynamically find the "data" dir based on it's relative location to gscript.bat?

Thanks in advance!

Tom Purl

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