Task: Add 'mise select' to pick several tasks from a menu

[AdrianDC]

Description

This is a fully working proof of concept that I've been thinking of ever since I started using mise everywhere 😄 .

To validate its usage and implementation, I've created mise-select
that uses almost the same Rust sources as provided here,
and that allows to add the select subcommand support in a similar way :

• https://gitlab.com/RadianDevCore/tools/mise-select

Up until now, I was using my gcil (GitLab CI/CD locally) in its host-only mode without containers,
just to draw the interactive selection menus and execute the selected tasks / commands / ...

Commits

• https://github.com/AdrianDC/mise/commits/feat/select/

feat(task): add mise select to pick several tasks from a menu

mise run with no task opens a picker, but it runs only one task. To run
a handful of tasks, you had to type them out with :::.

mise select, or mise run --select, opens a multi-select menu of tasks
grouped by folder, the part of a task's name before its last ::

 ○ tasks: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 ● └─ lint
 ○ build: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 ○ ├─ linux
 ○ └─ macos

Space checks a task, a checks or unchecks all, / filters, Enter runs
the checked tasks as if they were named with :::, and Esc cancels.
Checking a folder's line runs every task in it.

Task names, aliases, folders, and name prefixes given on the command line
start checked, and --run runs them without the menu:

mise select lint test:     # "lint" and the "test" folder start checked
mise select '^test:u'      # tasks whose name starts with "test:u"
mise select --run build    # run the "build" folder, without a terminal
mise select --alias        # show task aliases in the menu
mise -j 1 select           # run the picked tasks one at a time

mise select parses as mise run --select, so mise run's defaults and
environment variables apply; mise run --select also takes mise run
flags. A built-in command takes precedence over a task with the same
name, so mise select no longer runs a project task named select;
mise run select still does. Without a terminal, the menu fails with
"--select requires an interactive terminal".

Example

Thank you for your concern and for this great tool !

[jdx]

Thanks @AdrianDC, the multi-pick menu is a good idea. I don't want it as a top-level command, though: a built-in mise select would shadow any project task named select, and mise run already owns the task picker.

I opened #15503, which adds it as mise run --multi. It opens the existing picker as a checklist (Space checks, / filters, Enter runs the checked tasks as if joined with :::), and --all lists tasks from every monorepo project. I left out the folder grouping, name-prefix pre-checking and --run for now; those can follow if they turn out to be needed. You're credited as co-author on the commit.

AI-assisted — Tool: Claude Code; model: anthropic/claude-sonnet-5-5; version: claude-code_2-1-317_agent.

[github-actions[bot]]

Implemented in #15503: feat(task): add mise run --multi to pick several tasks from a menu