How to share variables among tasks?

[fritz-trawa]

I haven't been able to find out how to share variables among tasks. What I mean is this

[tool.poe.tasks]
my_src = "./some/string/"

[tool.poe.tasks.typecheck]
cmd = "mypy $my_src" <-- THIS

[tool.poe.tasks.lint]
cmd = "ruff $my_src"

surely it must be possible, but how? Thanks

[nat-n]

Hi @fritz-trawa,

If I understand your question correctly there are two mechanisms appropriate for setting a variable in one place for use by multiple tasks.

1. Global environment variables

   [tool.poe.env] <-- THIS
   my_src = "./some/string/"
     
   [tool.poe.tasks.typecheck]
   cmd = "mypy $my_src"
     
   [tool.poe.tasks.lint]
   cmd = "ruff $my_src"

2. Create a dotenv file and reference it from each task or as a global option.

Does that solve your problem?

[fritz-trawa]

Excellent, that answers my question.

Is this explained somewhere in the documentation? I am happy to submit a PR if it isn't, as I think this is a pretty common requirement

[nat-n]

See the inline links in my original answer for where this is covered in the documentation. I'm happy to hear feedback on how the documentation could be made clearer.

[fritz-trawa]

I guess the thing that was missing for me is that env vars is the mechanism used to share variables between tasks, and not variables set in the tasks.toml file, the way you'd do it with a Makefile for example. I think of env vars as something used by scripts themselves or during deployment etc.