Deno task --filter issue

[nomocas]

Version: Deno v2.1.3 and v2.1.4 (didn't check previous versions)
OSX: Darwin Kernel Version 23.6.0 arm64

Hello Community,

There is a weird behaviour with the brand new deno task --filter and workspace.

Root deno.json:

{
	"workspace": ["./libs/foo"],
	"tasks": {
		"bar": "echo bar"
	}
}

And ./libs/foo/deno.json:

{
	"name": "@scope/foo",
	"tasks": {
		"bar": "echo foo"
	}
}

Then:

➜ deno task --filter foo bar
Task bar echo foo
foo

No problem.
But if root deno.json:

{
	"workspace": ["./libs/foo"],
	"tasks": {
		"bar:baz": "echo bar"
	}
}

Then both tasks (bar and bar:baz) are triggered:

➜ deno task --filter foo bar
Task bar echo foo
foo
Task bar:baz echo bar
bar

It's also the case if:
Root deno.json:

{
	"workspace": ["./libs/foo"],
	"tasks": {
		"bar": "echo bar"
	}
}

And ./libs/foo/deno.json

{
	"name": "@scope/foo",
	"tasks": {
		"bar:baz": "echo foo"
	}
}

Then:

➜ deno task --filter foo bar
Task bar:baz echo foo
foo
Task bar echo bar
bar

But then if:
Root deno.json:

{
	"workspace": ["./libs/foo"],
	"tasks": {
		"bar:baz": "echo bar"
	}
}

And ./libs/foo/deno.json:

{
	"name": "@scope/foo",
	"tasks": {
		"bar:baz": "echo foo"
	}
}

Then:

➜ deno task --filter foo bar
Task bar:baz echo foo
foo

At the end, if:
Root deno.json:

{
	"workspace": ["./libs/foo"],
	"tasks": {
		"bar:baz1": "echo baz1",
		"bar:baz2": "echo baz2"
	}
}

And ./libs/foo/deno.json:

{
	"name": "@scope/foo",
	"tasks": {
		"bar": "echo foo"
	}
}

Then:

➜ deno task --filter foo bar
Task bar echo foo
foo
Task bar:baz1 echo baz1
baz1
Task bar:baz2 echo baz2
baz2

Fun isn't it ? :)

[marvinhagemeister]

Related:

• deno task: recursive task always fuzzy matches and runs unwanted tasks in child projects #27401
• deno task --recursive infinite loop #27370

[nomocas]

@marvinhagemeister @bartlomieju
Oh! That was quick! Thank you!