Defining Multiline Tasks Through Presets with mise config set

[gabalicious]

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Discovery: Using mise config set for Multiline Tasks

Hi Mise team,

First, I want to say how much I love Mise and how it's been a game-changer for my workflow. Recently, I had an interesting discovery while trying to create a multiline task, and I thought it might help others if I shared it here.

The Problem

I was trying to add a task through a preset with multiline commands. Initially, I attempted to use mise task add, but I couldn’t get it to work. No matter how I formatted the commands, they wouldn’t be interpreted correctly or executed in the proper syntax.

The "Hail Mary" Attempt

After multiple tries—and almost giving up—I decided to rely on AI tools (like Copilot and Anthropic's engine) for suggestions. That’s when it suggested a completely different approach, one I hadn’t seen in the documentation:

mise config set tasks.setup.run "
python -m venv .venv
source .venv/bin/activate
uv pip install -r requirements.txt
" -t string

I thought, “Why not give it a shot?” and it worked! 🎉

The result in the TOML file looked like this:

[tasks.setup]
run = """
python -m venv .venv
source .venv/bin/activate
uv pip install -r requirements.txt
"""

What I Learned

• Using mise config set with the -t string option allowed me to define the multiline commands, preserving the line breaks as needed.
• The -t option (e.g., -t string, -t bool, or other types) might also work in other contexts, which could be worth exploring.

Suggestion

Could this be added to the documentation? A small section about multiline tasks and the mise config set approach (or mise task add if there is a way) would help others who face the same issue. It's especially useful to add tasks as part of a preset.

Thank you for building such an amazing tool, and I hope this discovery can help others as well. If this behavior is intended or there’s a better way to handle multiline tasks, I’d love to learn more!