feat(tasks): make script task dirs configurable

[Ajpantuso]

Summary

Closes #1270

Adds a top-level config Table, task_config, which currently has one property includes. includes is an array of paths which can be used to alter the locations from which file tasks are loaded from.

These paths can be absolute, relative, inside/outside the project, and accepts ~ as a substitution for $HOME.

Additional Notes

• includes is represented as a BTreeSet to preserve ordering, allows users to influence load ordering, and to ensure uniqueness.

[jdx]

can you change this to parse via derive? I'm trying to get rid of the manual parsing

[Ajpantuso]

Yes, that's what I actually started with, but didn't quite understand how templates are being rendered to the deserialized values.

[Ajpantuso]

nvm, I see now. Was looking in the wrong place.

mise/src/config/env_directive.rs

Lines 151 to 165 in 3070bf8

	fn parse_template(
	&self,
	ctx: &tera::Context,
	path: &Path,
	input: &str,
	) -> eyre::Result<String> {
	if !input.contains("{{") && !input.contains("{%") && !input.contains("{#") {
	return Ok(input.to_string());
	}
	trust_check(path)?;
	let dir = path.parent();
	let output = get_tera(dir)
	.render_str(input, ctx)
	.wrap_err_with(|| eyre!("failed to parse template: '{input}'"))?;
	Ok(output)

[Ajpantuso]

Just dropping support for templating in includes for now. It just adds too much noise for the moment and will be simpler to incorporate after custom parsing is gone.