Port `pipelines-limit` flag from dspash-future branch

[angelhof]

The dspash-future branch contains a useful option that puts a maximum limit on the numbers of parallel pipelines that can be spawned by PaSh (https://github.com/binpash/pash/blob/dspash-future/compiler/config.py#L142). It is currently not implemented in future and it would be great if the option and its effects are ported to future. To resolve this issue it would be good to also add an example usecase for this option in docs/tutorial.md.

[HuoDx]

Hi all! I want to take on porting the pipelines-limit flag from dspash-future into future.

I’ll start by forking it, running the existing tests, and drafting a PR in a separate branch — please let me know if there are any special guidelines I should follow!

[angelhof]

Hi all! I want to take on porting the pipelines-limit flag from dspash-future into future.

I’ll start by forking it, running the existing tests, and drafting a PR in a separate branch — please let me know if there are any special guidelines I should follow!

Great :) Just make sure to work on a branch from the future and not the main branch :) Send messages on the discord server if things don't work/you have questions!