I wrote a tool that takes the ASC and ASH files and exports the SCM. That will sound more impressive once I finish setting up a project that uses this tool for fully automated builds (the process is already tested, I'm just getting things ready for a public release).
This tool is written in C# and works with Mono, so it can be used in Linux (despite the lack of an AGS editor for Linux as of yet).
Source and downloads are available on my Github (https://github.com/monkey0506/AGSModuleExporter).
This tool is now used for automatic releases of the Stack module (https://github.com/monkey0506/ags-module-stack), and my plan is to set up other modules on Github as well. The ags-module-stack repository on Github uses Travis CI (http://travis-ci.org) to download the AGSModuleExporter tool and then invoke Mono to run it and build the module from the script sources. The scripts involved automatically bundle the exported script module, README, etc. and upload the zip archive to Github.