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UPDATE (5/22/2011): I figured out how to use the “open” command, instead of digging into the bundle. See the “Scripting the Image” section below.

Typical Workflow

I go through a lot of images.  It’s just the way it is – make some changes to a package, try to load it in a fresh image, open another image with an older version to compare.

The Case for Scripting

The frustrating part is not using many images (which is pretty cool – to have multiple computers running at once… but I digress), but setting up the images every time.  So I decided I’d find a way to load common configurations automatically.  But how would I communicate to the image that it should run certain code on startup?  A quick google found writing scripts.

Poor Command of the Mac Command Line

This sounded like just what I needed, but I ran into a bit of trouble with the Mac command line:

~$ open -a /Applications/Squeak\ 4.2.5beta1U

FSPathMakeRef(/Applications/Squeak 4.2.5beta1U) failed with error -43.

~$ open -a Squeak\ 4.2.5beta1U ./Pharo-1.1-scripting/Pharo-1.1-11411dev10.07.1.image

Unable to find application named ‘Squeak 4.2.5beta1U’

~$ /Applications/Squeak\ 4.2.5beta1U ./Pharo-1.1-scripting/Pharo-1.1-11411dev10.07.1.image

-bash: /Applications/Squeak 4.2.5beta1U: No such file or directory

~$ /Applications/Squeak\ 4.2.5beta1U.app ./Pharo-1.1-scripting/Pharo-1.1-11411dev10.07.1.image

-bash: /Applications/Squeak 4.2.5beta1U.app: is a directory

…

Scripting the Image!

~$ open -a /Applications/Squeak\ 4.2.5beta1U.app/ –args

./Pharo-1.1-11411dev10.07.1.image /Users/sean/Squeak/SpdImageSetup.st testArgument

~$ “/Applications/Squeak 4.2.5beta1U.app/Contents/MacOS/Squeak VM Opt” ./Pharo-1.1-11411dev10.07.1.image /Users/sean/Squeak/SpdImageSetup.st testArgument

Running the Script Automatically on Startup