NAME

lib::with::preamble - invent your own default perl setup

SYNOPSIS

            

              
              
use lib::with::preamble 'use v5.16; use strictures 1;', 'lib';
            
          

The above will load .pm files from lib/ - but they'll act as if your code always started with 'use v5.16; use strictures 1;'.

USING THIS IN A DISTRIBUTION

To use this in a dist, you'll want to create two files -

            

              
              
# my/lib.pm
use lib::with::preamble 'use v5.16; use strictures 1;', 'lib';
1;
# my/filter
print "use v5.16;\nuse strictures 1;\n#line 1\n";
while (<STDIN>) { print }
            
          

and then tell your Makefile.PL to use the filter -

            

              
              
WriteMakefile(
  ...
  PM_FILTER => 'perl my/filter'
);
            
          

Then during development instead of doing

            

              
              
$ perl -Ilib bin/script-to-test
            
          

you'll want to do -

            

              
              
$ perl -Mmy::lib bin/script-to-test
            
          

and for prove -

            

              
              
$ PERL5OPT=-Mmy::lib prove t/some-test.t
            
          

but once you run

            

              
              
$ make
            
          

your blib/ will get populated with files that already have your preamble added, so

            

              
              
$ prove -b t/some-test.t
            
          

will just work, as will

            

              
              
$ make test
            
          

and when your users install your module, the .pm files will already have the preamble at the top, so your installed files will look like

            

              
              
# My/Foo.pm
use v5.16;
use strictures 1;
# line 1
package My::Foo;
...
            
          

and everything should work, without you even needing to add this module as a dependency.

Patches to document an equivalent for those of you using Dist::Zilla (and Module::Build, even if I don't like the bedamned thing) would be very welcome.

WARNING

This is as much a proof of concept as anything else at this point, so the interface is NOT guaranteed to be stable. Especially since this is meant to be a sort of implicit sugar, and history has proven that other people are much better at designing APIs to sugar than I am.

But provided you're using it the way I describe above, the my/filter script isn't dependent on anything, so your users will be insulated from that.

So please do have a play around and see if it works for you.

AUTHOR

mst - Matt S. Trout (cpan:MSTROUT) <mst@shadowcat.co.uk>

CONTRIBUTORS

None yet. Well volunteered? :)

COPYRIGHT

Copyright (c) 2013 the lib::with::preamble "AUTHOR" and "CONTRIBUTORS" as listed above.

LICENSE

This library is free software and may be distributed under the same terms as perl itself.

cpanm lib::with::preamble

perl -MCPAN -e shell
install lib::with::preamble