Re: Ending Build.PL if there are missing modules

If the goal is only to pick up versioned dependencies, I'm surprised
we even need to bother with that.

For M:I I've been thinking of just scanning all of script and lib for
/^use Module::Name 1.23/ to determine requires, and all of t to find
build_requires/test_requires.

Anything loaded without a specific numeric version would be ignored
and would have to be specified with a manual requires statement.

I'd filter out POD and comment lines, but I wouldn't bother with full
source parsing (can't really do that inside M:I anyway since I'd have
to bundle PPI).

Adam

On Sun, Feb 5, 2012 at 12:23 PM, David Golden <[email protected]> wrote:
> On Sat, Feb 4, 2012 at 5:17 PM, Adam Kennedy <[email protected]> wrote:
>> That's how Module::Install's requires_from does it too.
>>
>> I should look at zilla's code and see how it runs, might be worth
>> aligning M:I and it's detection.
>
> It uses Ricardo's Perl::PrereqScanner, which does a pretty sane job of
> it (even detects base/parent and so on). =A0It has some extensions for
> picking up Moose and POE prereqs and so on.
>
> It doesn't help with optional, dynamic prereqs so those have to be
> specified manually, but that's unavoidable I think.
>
> David