New Sydney PM website and URL

With new cool TLD's available, I purchased perl dot sydney which is the perfect domain for Sydney Perl Mongers.

Our current/old website is dated and tired, so I also spent some time whipping into shape a new website using GH pages. Having GH pages automagically compile markdown files into HTML is very neat. Plus having everything in github so people can PR, and having group access - are both great. But... that Jekyll isn't Perl does make me feel somewhat sold out, even if it's being used implicitly.

Anyway, please take a look and proof read the perl dot sydney website. Send PR's for all my typos and grammatical errors (people in's #australia have already gone over it)

Also, if you would like to order one of our Tshirts (which help pay for these vanity domains and our meetup page) - check out the details on our Facebook page.

Perl 6 Release Quality Assurance: Full Ecosystem Toaster

Read this article on Perl6.Party

As some recall, Rakudo's 2017.04 release was somewhat of a trainwreck. It was clear the quality assurance of releases needed to be kicked up a notch. So today, I'll talk about what progress we've made in that area.

Define The Problem

A particular problem that plagued the 2017.04 release were big changes and refactors made in the compiler that passed all the 150,000+ stresstests, however still caused issues in some ecosystem modules and users' code.

The upcoming 2017.06 has many, many more big changes:

  • IO::ArgFiles were entirely replaced with the new IO::CatHandle implementation
  • IO::Socket got a refactor and sync sockets no longer use libuv
  • IO::Handle got a refactor with encoding and sync IO no longer uses libuv
  • Sets/Bags/Mixes got optimization polish and op semantics finalizations
  • Proc was refactored to be in terms of Proc::Async

Bailador documentation

The documentation of Bailador was updated. It looks much better now.

The many ways to use Alien

A while back I introduced the alienfile recipe system and we wrote a simple alienfile that provides in a CPAN context the tool xz and the library liblzma. I also went over how to test it with App::af. The week after that I showed how to integrate that alienfile into a fully functioning Alien called Alien::xz and promised to show how to then use that Alien from an XS or FFI module. Today I am going to do that. I am also going to show how to use a tool oriented Alien module. (conveniently, Alien::xz can be used in either library or tool oriented Alien mode). If you are more interested in FFI or tool oriented mode feel free to skip down to the appropriate paragraph.

Writing Declarative Perl

At The Perl Conference in Washington DC, I'll be giving a talk on Modeling a Universe in Perl. For previous versions of this talk, people have asked for more information about how we model complex actions in a (mostly) declarative manner. For example, here's the code for purchasing a clone:

It's the Steps() function which is our declarative code. As you might imagine, there are tons of actions which might require that you be in a particular area, or have credits removed from your wallet, so the Area and Wallet lines can be dropped into any Steps() function anywhere throughout our code. But people want to know how this works. In reality, it's pretty simple.

Scott Wiersdorf on Functional Refactoring with Perl

Perl 5 Porters Mailing List Summary: June 6th-11th

Hey everyone,

Following is the p5p (Perl 5 Porters) mailing list summary for the past week.


Portable GitHub system "GitPrep 2.6" is released - "Wiki system" is added. You can write documentation.

Portable GitHub system "GitPrep 2.6" is released at 2017-06-10.

Finally, "wiki" system is added. You can write documentation on GitPrep.

At first, Let's try
GitPrep example. You will find GitPrep is real portable GitHub system.

The features of GitPrep

I introduce the featrues of GitPrep for people who see GitPrep for the first time.

  • Github clone: GitPrep has the same interface as GitHub. All of repository, pull request, issue, and wiki is used.
  • Support issue system
  • Portable: You can install GitPrep on your own Unix/Linux server.
  • Only needs Perl 5.10.1+.
  • Smart HTTP support: you can pull and push repository via HTTP.
  • Built-in web server, and reverse proxy support.
  • CGI support.
  • SSL support.
  • Public key authentication support

Installation is very easy. You run only two commands. Difficult settings is unnecessary.

Even if you have troubles by your mistake, for example "git push -f origin master", you can access all of your git repositories directory and fix them.

All reporitories are yours. All repositories exists on your own server.

The Perl Conference Newsletter

In this issue:

  • Sunday Arrival Dinner
  • Tuesday Night Social: Get to know your fellow attendees!
  • Tutorials spaces still available
  • Call for Speakers: Lightning Talks
  • Call for Volunteers

Arrival Dinner - Sunday June 18

Arrangements have been made with Zikrayet Restaurant and Lounge to host a large crowd for The Perl Conference Arrival Dinner.

Given the nature of the place, it will be possible to make this event more of a come and hang out destination than we've been able to have in past years. Just the same we have an official time of 6pm set for the dinner so everyone can have a common plan for arrival.

This is an arrivals dinner but not necessarily the arrivals dinner. It's also a tradition that others who prefer smaller crowds and/or a more vegan-friendly menu organize an Alt Arrival Dinner.

For more information, or to note your intended attendance, please visit:

Blog engine in Perl 6

I've started to build a blog engine in Perl 6 using the Bailador web framework. Primarily as an example for the Bailador book, but if it works well it might even be used as a replacement for the blog engine running

If you are interested, follow the GitHub project. If you'd like to help with the development, let me know, and I'll invite you to the Bailador Slack channel where we can discuss things. If you'd like to support the project financially then the best thing you can do is to back the crowdfunding campaign of my book about Bailador.

Add Structured Data to Log::Any

A few months ago, I proposed a few changes to Log::Any with the goal of

  1. extending the API between applications and Log::Any::Adapters to allow passing hashrefs in addition to the log message
  2. allow applications to specify localized context data for Log::Any to add to each log message in that scope
  3. allow system owners to globally specify a default adapter other than Null

To get the bigger picture, you might want to revisit the original blog post and the reply by dagolden.

Based on the follow-up discussion on- and offline, I've tried to come up with a pull request that implements the proposed changes. To give it a try, clone it, and use my sample adapter to produce some output:

$ git clone
$ git clone
$ git clone sample
$ perl  -ILog-Any/lib/  -Iperl-Log-Any-Adapter-Screen/lib/   sample/ 

The Perl Conference 2017 in DC - Schedule Posted

Check out our super-cool schedule, which links to talk and speaker details, at!

The conference is a few weeks away (June 19-21 for the core conference, 18th and 22-23 for tutorials), so be sure to register and we'll see you soon!

Rakudo.js update - builds sanely and passes some spec tests

Rakudo.js now should build in much more sane manner and passes some tests.

In directory containing a checkout of the js branch of rakudo

Once you grab a node.js (tested with 7.10.0)

$ git clone rakudo-js-fresh
$ git checkout js
$ cd rakudo-js-fresh
$ perl --backends=moar,js --gen-nqp --gen-moar
$ make js-all
$ ./perl6-js -e 'say(123)'
$ make js-spectest

Rakudo.js now passes some tests .
The remaining majority tests are stopped from passing mostly rampant bugs and a few missing bits.
OTOH some of the more advanced features like precompilation/junctions/multi methods (including callsame) work showing that once the building blocks work we can reuse the ton of good work put into Rakudo itself.

The Rakudo js has been recently update so it's now tracking nom clearly.
nqp.js is now using the new buffer IO and character based IO ops have been removed.

On the positive side our custom C++ synchronous extension that allowed piping to a spawned process has been deleted as it was a quick and dirty hack and the way node.js extensions are done is being currently reworked.

Perl 5 Porters Mailing List Summary: May 23rd - June 5th

Hey everyone,

Following is the p5p (Perl 5 Porters) mailing list summary for the past two weeks.


Updated list of drawing tools

After 11 years, I've updated the list! If you have any suggestions, please comment or email me.

Amazing: The preview feature worked. Submitting for the last time...

Type::Tiny 1.2.0 Released

So, Type::Tiny 1.2.0 (a.k.a. 1.002000 using Perlish decimals) is now available on CPAN.

Highlights since 1.0.0:

Strawberry Perl released

Strawberry Perl is available at

More details in Release Notes:

I would like to thank our sponsor Enlightened Perl Organisation for resources provided to our project.

Perl 5.26.0 is now available!

I am delighted and proud to announce the release of Perl 5.26.0! You can read the release announcement.

It has been the first release done under my fidgety guidance. I want to take this opportunity to share my thoughts on this release and the process we had producing it.

SPVM is developed little by little

SPVM is the language to speed up numerical operation and array operation in Perl.
SPVM is deveoped little by little. I don't know it will be success to embded SPVM to Perl , but I introduce SPVM in this entry.


SPVM means Static Perl Virtual Matchine. This is Perlish static typed language.

Today I will introduce the test script. All variables have a static type and automatic type conversion is not done. Variable declaration can be omitted because it has type inference. It is designed to be same as Perl language as possible.

package Main {

  sub main () : int {
    my $num1 = 2;
    my $num2 = 5;
    my $num3 = sum($num1, $num2);
    return 0;

  sub sum ($num1 : int, $num2 : int) : int {
    my $num3 = $num1 + $num2;
    return $num3;

The output result is as follows.


Looking at the file "Test.spvm", you can see the functions currently implemented.

COMPLETION Report / Perl 6 IO TPF Grant

This document is the May, 2017 progress report for TPF Standardization, Test Coverage, and Documentation of Perl 6 I/O Routines grant. I believe I reasonably satisfied the goals of the grant and consider it completed. This is the final report and may reference some of the work/commits previously mentioned in monthly reports.

Thank You!

I'd like to thank all the donors that support The Perl Foundation who made this grant possible. It was a wonderful learning experience for me, and it brings me joy to look back and see Perl 6 improved due to this grant.

Thank You!

Completeness Criteria

Here are the original completeness criteria (in bold) that are listed on the original grant proposal and my comments on their status:

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