proposal: provide means of getting information about current module

[DeedleFake]

Now that versioning exists in Go, it would be very useful if that version information was available from code inside a given module. Other information may also be useful, but the version number is of particular interest.

For example, being able to do something like the following would be very useful:

version := flag.Bool("version", false, "Show version information.")
flag.Parse()

if *version {
  fmt.Printf("Example %v", runtime.Module().Version)
}

runtime's probably not the right place for it, but it was just the first thing that came to mind.

If this exists already or has been talked about before and I've just missed it, I apologize. I searched around on here, on Reddit, on Google, and just through the standard library documentation, too. I didn't see anything obvious.

[mvdan]

Duplicate of #26404.

[DeedleFake]

There it is. I figured it must exist somewhere; it seemed too obvious. Thanks.