Dancer2 0.159000 waiting for you on CPAN!

Hi everyone,

It's been a little while since we had a release. We took longer this time because this release provides a few major improvements we wanted to mature.

With 13 contributors and 23 tickets closed, I'd like to present Dancer2 0.159000.

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.


Since it is not possible to write p5p criticism to the mailing list, I'll have to do it in my blog. @p5p: think over your guidelines. I don't believe that stuff like that needs to be blogged.

DaveM now introduced a new OP_SIGNATURE which assigns run-time args according to the compiled signature.

It basically speeds up these compiled checks

    sub f ($a, $b = 0, $c = "foo") {};


    sub f {
        die sprintf("Too many arguments for subroutine at %s line %d.\n", (caller)[1, 2]) unless @_ <= 3;
        die sprintf("Too few arguments for subroutine at %s line %d.\n", (caller)[1, 2]) unless @_ >= 1;
        my $a = $_[0];
        my $b = @_ >= 2 ? $_[1] : 0;
        my $c = @_ >= 3 ? $_[2] : 'foo';

into one OP, which does the same, similar to the new MULTIDEREF. Moving op chains into C. DaveM is now the goto guy for the big DWIM ops, compressing previous op chains into a single one.

New Perl Module: AWS::SNS::Verify

I’m pleased to announce the release of AWS::SNS::Verify. If you’re using Amazon Simple Notification Service then you need a way to verify the authenticity of messages coming from SNS. This module handles that easily for you.

[From my blog.]

Building a Thin Controller

I haven't updated about Veure in a while and though this post isn't really about Veure, per se, I'll use some code from it to illustrate a "thin controller."

There's a lot of confusion about the thin controller/fat model advice which gets passed around. In fact, I've seen some developers get upset about the idea, claiming that it's the model which should be as thin as possible. I'll explain what's really going on and give some real-world examples, using code from Veure.

Avoid a Common Software Bug By Using Perl 6

Back in 2001 I was working for a company who had a client who was in a serious bind: the maker of their point of sale (POS) system suddenly jacked up the license fee to the point where our client would go out of business. They needed a new POS in 21 days.

We grabbed an open source POS system and identified all of the features it was missing that our client would need. Then it was 21 days of overtime and no days off. Back in the days of, I blogged about this hell almost every day. It was also, interestingly, the first project I wrote software tests for. The other main dev on the project was teaching me how Perl's testing tools worked and as the days went on, I found myself incredibly proud of seeing all of those tests pass and catching bugs I would not have otherwise caught.

CPAN to MetaCPAN auto redirect for Chrome released

Like most of you, I prefer MetaCPAN over CPAN. The biggest issue I had was any google search and older blog posts all linked directly to CPAN.

I found 'MetaCPAN Helper' on the Chrome Web Store however using it caused google to pop up a page about me being redirected whenever I clicked on a CPAN link costing me a few extra seconds to get where I wanted to go. Like many of you I thought this was unacceptable so a little while back I created my own extension that does not have this issue.

What the extension does is rewrite all url's to without any tracking, annoying popups, or redirect pages.

Hopefully this will help some of you out. If you have any issues or features you would like to add you can do so at: or send me a pull request.

Source Code is available at:

Extension is available at:

How do you join the conversation? is great in that it's a stream of blog posts around a specific technology. Since I, like many of you, blog about other technologies too, I'd like to learn from you about other conversation streams. For me personally, the list of topics include:

  • Web development (JavaScript, CSS, etc)
  • Lifehacks
  • Unix, Linux, shell scripting
  • General tech / tech business
  • Database

I'll add what little knowledge I have on the topic:


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