Define tasks for specific files/languages

[Testare]

Idea

I think it would be nice if we could have language specific tasks defined, similar to how you can change settings for specific languages in settings.

In particular, I like the "reveal": "no_focus" option for tasks, such as cargo tests, but the built-in ones focus the terminal after running. My work-around is to redefine these tasks, which is essentially copy-pasting how the cargo test tasks behave with the one setting changed, but now these tasks are available even in non-rust contexts.

Consequently, being able to override task settings would also solve this issue and involve less copy-paste, but might be a bit more niche than simply defining tasks for specific languages.

API ideas

• "languages" field under task where you can provide a list of supported languages. This is the easiest way to define tasks you can re-use across languages and involves minimal change to existing tasks files.
• You could make it so that tasks.json supports having a base object, where the "default" key maps to global tasks but different languages can act as different keys. If the base object is an array, treat everything like the "default" key.
• separate files for different languages, like ".config/zed/tasks/python.json"

I think the first one makes the most sense, but I'm not familiar with zed code-base.

Open questions

What if a project has multiple languages in the project? For example, if you're editting Cargo.toml or Readme.md, building a rust project still makes sense as a task even if the current file is not a rust file.

[ask4fusora]

I need this feature.

[aizigao]

need this too, I wanna a coder runner config, but I can't find var to check what language was used