Duplication

[fils]

So the development process for this across the three implementer was hideous...

• generator script should be one file (and really should be Go or Python and use real template files)
• The repository directory and file are not used, remove
• At present the template files are all the same, don't need them three times

[fils]

At the same time we deal with duplication it would be nice to

• move the generator from Bash to Python
• use a template language like https://jinja.palletsprojects.com/en/3.1.x/templates/ vs my SOURCEVAL hack.

[fils]

An early version of the build script in python is at https://github.com/gleanerio/scheduler/blob/dev/dagster/implnets/pygen.py

Still doesn't use templates, but that should be easy.