[dancer-users] What about a "use Dancer :config"?

sawyer x xsawyerx at gmail.com
Sun Sep 8 10:57:07 BST 2013

Hey Cymon, Mike.

The ":syntax" import tag wasn't ported to Dancer 2, other than accepting
it. The tag was originally meant to not create a web server out of your
application, which was useful for defining routes that aren't apps in and
of themselves. In Dancer 2 the structure is a bit different which meant
there was no need for the ":syntax" tag.

You can just "use Dancer2" in your scripts and read the configurations.
This is totally fine.

We do, however, intend to support the ":script" tag (which is ignored for
now) to prevent reading the @ARGV when processing requests. The problem is
that the code for processing @ARGV hasn't been ported, so everything is
working as if ":script" is in effect.

In the end, the situation we want is:
* "use Dancer2" without worrying.
* "use Dancer2 ':script'" when you want to prevent @ARGV parsing, so you
could have your own in your script.

The first one is there. The second one is implied since there's no @ARGV
parsing, but we will add it in the future. Perhaps you will do it? :)

I hope that answers your questions.

On Sat, Sep 7, 2013 at 1:20 AM, Mike South <msouth at gmail.com> wrote:

> Hi,
> dancer newbie here.  I recently wrote a script that read the dancer config
> in manually.  In my opinion, this would be a great import tag.
> I'll share my use case (while bracing for "that doesn't belong in config,
> you idiot!" responses--it's ok, just tell me if you think that, I'm eager
> to learn.):
> I have a development, staging, and production instance of the app that run
> on the same url but different ports.  I want to put the port number in the
> config.yml.  Another thing someone might want in there would be the
> location of the PID file for killing the currently running process.  I need
> this in the script that I use to start/re-start the app, which takes the
> name of the environment as an argument, then checks the PID file for the ID
> of a running process, kills and reports that, then runs plackup, telling it
> the port to start on and the name of the run file.
> Another thing you might want available outside the app is a mount
> point--instead of differentiating by port, you could mount the app at a
> different virtual directory (or whatever you call the url prefix).
>  Possibly hostname, too--in short, anything I need to pass to plackup, I
> would like to be available in a script that doesn't start the app, but
> gives me the configuration info I need to start the app.
> mike
> On Fri, Sep 6, 2013 at 3:30 PM, Cymon <cymon.ML at gmail.com> wrote:
>> Hi all,
>> I was a little puzzled when I saw the "Use Dancer :syntax" disappear in
>> the 0.007 release.
>> I thought that a less powerful Dancer inclusion was needed as the "Use
>> Dancer" create an App in every package is used.
>> Thinking about it I realized that probably it's a matter of "code
>> discipline" (tell me if I'm wrong). The right way to do things is not
>> importing "a part" of Dancer environment, but passing the $dsl object
>> when needed, so I accepted that.
>> Even so, I think that there's a case when a "light" dancer import is
>> needed and it is when you need to use some configuration you have in
>> the config.yml that should be the master configuration file for
>> everything in your project (in my idea).
>> So I was wondering if it could be useful to add a "Use Dancer :config"
>> way to import Dancer just to make the config keyword accessible,
>> without creating an App.
>> What do you think about this?
>> --
>> Simone "Cymon" Faré
>> http://perlishscrewdriver.blogspot.com
>> _______________________________________________
>> dancer-users mailing list
>> dancer-users at dancer.pm
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