Automatically update offline HTML5 application

Yvan Rodrigues asked:

I'm just finishing up a project for a client. It consists of an HTML5 application that is run from the local filesystem (a USB stick). The application includes the Chromium browser.

The client has just requested a new feature: they'd like the software to be able to auto-update.

Enumerating and fetching an update is no problem... but I'm not sure how I'll deploy back to the filesystem. I can't use fileapi because the saved content would be sandboxed.

We don't want the user to have to download a zip and save files to the stick -- that's way above the average user's ability.

Flash/Silverlight/AIR etc are not options (that's why it was written for HTML5).

Maybe a chromium extension?

Suggestions are welcome.

Tags: HTML5, Deployment

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