update-squeak45-image.st

[| config |
MCMcmUpdater defaultUpdateURL: 'http://source.squeak.org/squeak45'.

"This comes from Utilities class >> #updateFromServer, but leaves off the #inform: call, which puts up a modal dialog. When running headless there's still a MorphicUIManager running"

"Update the image by loading all pending updates from the server."
"Flush all caches. If a previous download failed this is often helpful"
MCFileBasedRepository flushAllCaches.
config := MCMcmUpdater updateFromDefaultRepository.
config ifNil: [^self inform: 'Unable to retrieve updates from remote repository.' translated].
Utilities setSystemVersionFromConfig: config.

"Save the fully updated trunk image."
WorldState addDeferredUIMessage: [ Smalltalk snapshot: true andQuit: true ]]
    on: Error do: [:err |
        err printVerboseOn: FileStream stderr.
        Smalltalk snapshot: false andQuitWithExitCode: 1].