Add posibility to include by dotenv

[antonio-antuan]

Hi!
I want to include taskfiles by dotenv var. For now I see that it is not possible because dotenv read when files already included...

.env:

TASKFILE_PATH=./child

Taskfile.yml:

version: '3'

dotenv:
  - .env

includes:
  child: 
    taskfile: $TASKFILE_PATH/Taskfile2.yml
    optional: true
    dir: $TASKFILE_PATH

Taskfile2.yml:

version: '3'

tasks:
  default:
    cmds:
      - echo child

Also, it is not possible for now to include with env variable:
Taskfile.yml:

version: '3'

env:
  TASKFILE_PATH: Taskfile2.yml

includes:
  child: 
    taskfile: $TASKFILE_PATH
    optional: true

[trulede]

This really is not possible.

And alternative would be to use a an envar or var at the CLI, and the solution being developed for #2443 (PR #2445). Its a remarkably confusing problem, and possibly has no solution. The processing is: Read (imports done here), compile (vars, envars resolved here) and then execute.

We can track the issue under 2443.