How to know the version of perl6/raku I am running? - raku

Question

Trying the -v switch, I get the parrot svn revision:
$ perl6 -v
This compiler is built with the Parrot Compiler Toolkit, parrot revision 45822.
but how do I know the rakudo version, either a vx.xx or {some-git-hash}?
Thanks,

Answer 1

The special variable $*PERL may provide the hint
> $*PERL.compiler
rakudo (2018.04.1)
> $*PERL.compiler.^attributes
(Str $!id Str $!release Str $!build-date Str $!codename Str $!name Str $!auth Version $!version Blob $!signature Str $!desc)
> $*PERL.compiler.^methods'
(BUILD build-date verbose-config Str gist id release codename name auth version signature desc BUILDALL)
> $*PERL.compiler.name
rakudo
> $*PERL.compiler.version
v2018.04.1
> $*PERL.compiler.auth
The Perl Foundation
> $*PERL.compiler.build-date # This being the date it was built on my machine
2018-05-18T21:59:11Z
> $*PERL.compiler.verbose-config
...

Answer 2

Currently you can't know :(
There's a patch for that in RT that awaits review: http://rt.perl.org/rt3/Ticket/Display.html?id=73148 but so far it hasn't been applied yet.
Update: With a sufficiently new Rakudo, you get:
$ perl6 -v
This is Rakudo Perl 6, version 2010.06-212-g1086ff8
Copyright 2008-2010, The Perl Foundation
Where the thing after "version" is the git describe output.

Answer 3

perl6 -v now works. It provides the last monthly release, the number of commits since then, and the git hash.