[5.8] Add runtime for each seeder and overall seeders runtime to output

[chelout]

This PR was inspired by @jwpage #29149

This adds the runtime for each individual seeder and overall seeders runtime to the output of the artisan db:seed command, including artisan migrate --seed. I also changed a bit output format to be more consistent with migrations. I find this useful to get an idea of how long each seeder will take to run and in general. Tired to run time php artisan migrate:fresh --seed

Example output:

[browner12]

like the idea! I definitely have some long running seeders, would be nice to see this info.

[seriquynh]

Should we create helpers (or traits) to reduce duplicate code?

$startTime = microtime(true);

// Do some stuff

$runTime = round(microtime(true) - $startTime, 2);

$runTime = $this->duration(function () {
    // Do some stuff
});

[chelout]

@XuanQuynh don't think trait is good idea, but helper looks nice!

Added a duration helper in latest commit.

[antonkomarev]

I don't think we need to add more global helpers.

[taylorotwell]

I'm not sure I would make a global helper. I would make some sort of Stopwatch support class if I was going to do this at all.

[driesvints]

Let's please indeed not make a global helper. Stopwatch class sounds good 👍

[chelout]

We have already such class in laravel/horizon
We can move this implementation to framework, @driesvints @taylorotwell what do you think?

[antonkomarev]

That would be even better.

[chelout]

Added Stopwatch class.

[chelout]

@driesvints hope, i got you right.

[taylorotwell]

Your stopwatch class says it returns time in milliseconds. Your console output lists time in seconds.

[chelout]

@taylorotwell fixed that.

[taylorotwell]

The stopwatch SHOULD return time in milliseconds. Returning seconds isn't going to be useful in the vast majority of situations.