make-booster VS fabricate

For a very different approach, check out make-booster:

https://github.com/david-a-wheeler/make-booster

Make-booster provides utility routines intended to greatly simplify data processing (particularly a data pipeline) using GNU make. It includes some mechanisms specifically to help Python, as well as general-purpose mechanisms that can be useful in any system. In particular, it helps reliably reproduce results, and it automatically determines what needs to run and runs only that (producing a significant speedup in most cases). Released as open source software.

https://github.com/david-a-wheeler/make-booster

I think a lot of hate on make is due to poor use. If your makefile is complex, refactor it. Auto-generate dependencies (it only takes a few lines in GNU make). And don't use recursive make, that way lies madness. I also think GNU make is the wiser tool; POSIX make lacks too much in many cases.

https://github.com/david-a-wheeler/make-booster

From its readme:

"This project (contained in this directory and below) provides utility routines intended to greatly simplify data processing (particularly a data pipeline) using GNU make. It includes some mechanisms specifically to help Python, as well as general-purpose mechanisms that can be useful in any system. In particular, it helps reliably reproduce results, and it automatically determines what needs to run and runs only that (producing a significant speedup in most cases)."

"For example, imagine that Python file BBB.py says include CC, and file CC.py reads from file F.txt (and CC.py declares its INPUTS= as described below). Now if you modify file F.txt or CC.py, any rule that runs BBB.py will automatically be re-run in the correct order when you use make, even if you didn't directly edit BBB.py."

This is NOT functionality directly provided by Python, and the overhead with >1000 files was 0.07seconds which we could live with :-).

My biggest disappointment with make, and almost all it’s clones, is that I have to manually write out pre-reqs and targets.

My computer knows what files I read and write. Use that to calculate what you should do.

Some systems head in this direction — there is “tup”, and a Python program I love called fabricate ( https://github.com/brushtechnology/fabricate ), that records what a program reads, then doesn’t rerun it if no input has changed.