[Fwd: Re: Finding all version numbers in a distro's *.pm files]

Hi Folks

This went straight to David, instead of the list :-(.

-------- Forwarded Message --------
> From: Ron Savage <[email protected]>
> To: David Golden <[email protected]>
> Subject: Re: Finding all version numbers in a distro's *.pm files
> Date: Tue, 01 Sep 2009 12:00:38 +1000
> 
> Hi David
> 
> I had a feeling this wouldn't be a simple as possible...
> 
> On Mon, 2009-08-31 at 21:30 -0400, David Golden wrote:
> > On Mon, Aug 31, 2009 at 9:04 PM, Ron Savage<[email protected]> wrote:
> > > Hi Folks
> > >
> > > I've been reading up on version numbers and the docs for version.pm,
> > > and looking on CPAN for this one.
> > >
> > > Is there a program/module which will scan all *.pm files in a dir, and
> > > extract what version.pm thinks are version numbers?
> > 
> > That's a rather convoluted issue.  Can you be more specific what
> > you're trying to do?  Here are some qualifying questions (not mutually
> > exclusive):
> 
> 
> As stated just above, differently :-).
> 
> I want to ensure all files in the dir return the same version number, if
> I print them using version.pm.
> 
> 
> > * What version.pm "thinks" -- meaning internal representation?
> > 
> > * What version.pm will output as a string?  What it will output in
> > 'normalized' form?  In numeric form?  (All of these can differ)
> 
> 
> As a string will do just fine.
> 
> 
> > * What version.pm will make of the EU::MM->parse_version result?  E.g.
> > "say version->new( ExtUtils::MM->parse_version($file) )->normal"
> > (Also, depending on the version of EU::MM, it will load version.pm if
> > available)
> > 
> > * What Foo->VERSION will give if version.pm is loaded?  (Not
> > necessarily the same as the parse_version result)
> > 
> > * Which version of perl?  5.6.X?  5.8.0? 5.8.[1-9]? 5.10.X?  All
> > potentially different answers
> 
> 
> The version I'm running, 5.10.0.
> 
> 
> > Given all that, I know of nothing on CPAN that can easily (and
> > correctly) answer your question.  Aren't you glad you asked?  :-)
> 
> 
> If such a program fails on some modules, that does not worry me, since I
> would be almost always using it on my own code, or on modules such as
> CGI::Session where I do most of the maintenance.
> 
> Code which purports to do this, none of which seem to use version.pm,
> are:
> 
> o Module::Extract::VERSION
> 
> o Module::Build::DistVersion
> 
> o version.pl (Module::Info::File)
> 
-- 
Ron Savage
[email protected]
http://savage.net.au/index.html