--labeled-output option

[mysticatea]

When I run tasks in parallel, I will see a mix of stdout of those tasks.
So labels would be useful to indicate that each line has outputted from which tasks.

$ npm-run-all --labeled-output --parallel task1 task2

[task1] hello
[task1] world
[task2] hey
[task1] !!
[task2] everyone.

This feature should be an option since it modifies the outputs of tasks.

[clonq]

Could you also add an option for printing the task number? e.g. [1/3]

[mysticatea]

@clonq Oops, I'm sorry, I missed your comment.

Hm, I think people may be confused by the numbers since the numbers' candidate exists 3 kinds.

• the index in command line arguments.
• the index in matched tasks of command line arguments. (we can use pattern matching)
• the index in the definition in package.json.