On Mon, Nov 10, 2003 at 03:49:54PM -0500, Randy W. Sims wrote:
It would be nice to see functionality like this incorporated into a
Module::Build::Configure package (or similar) along with other configure
type routines common in current Makefile.PLs. Routines that find if libs
or executables are installed, find appropriate install paths for
installing perl programs that don't belong in the perl tree, etc.
If anyone cares, I have an ExtUtils::MakeMaker wrapper (a single module that's
distributed but not installed with any package) that:
-) If a module is missing, tells you what package to find it in (it's not
always obvious to find, say, Net::FTP in libnet before you're familiar with
libnet)
-) Handles optional modules, i.e., if it's missing, doesn't die, but does
issue a message to the user.
-) Can check for executables, too, with versions (by telling it how to look up
version numbers for that module).
I've attached it for your edification. Constructive criticisms welcome.
Mx.# (X)Emacs mode: -*- cperl -*-
use 5.005;
use strict;
=head1 NAME
make - tools for making makefiles with.
=head1 SYNOPSIS
use constant MOD_REQS =
[
{ name= 'Pod::Usage',
version = '1.12', },
{ name= 'IPC::Run',
package = 'IPC-Run',
version = '0.44', },
{ name = 'DBI::Wrap',
package = 'DBI-Wrap',
version = '1.00',
optional = 1, },
];
use constant EXEC_REQS =
[
{ name= 'blastpgp',
version = '1.50',
vopt= '--version', },
{ name= 'mkprofile', },
{ name= 'mp3id',
version = '0.4',
vopt= '--help',
vexpect = 255, },
];
use constant NAME = 'Module-Name';
use constant VERSION_FROM = catfile (qw( lib Module Name.pm ));
use constant AUTHOR = 'Martyn J. Pearce [EMAIL PROTECTED]';
use constant ABSTRACT = 'This module makes chocolate biscuits';
use make.pm
=head1 DESCRIPTION
This package provides methods and initialization to build standard perl
modules.
The plan is, you define the requirements, and let the module take care of the
rest.
The requirements you must define are:
=over 4
=item MOD_REQS
An arrayref of hashrefs. Each hashref represents a required Perl module, and
has the following keys:
=over 4
=item name
BMandatory Name of the module used. The presence of this module is checked,
and an exception is raised if it does not exist.
=item package
BOptional Name of the package in which the module is to be found. If not
defined, the package is assumed to be present in core Perl.
Modules that have been in core Perl since 5.005 need not be listed; the core
perl default is for modules such as CPod::Usage which have been added to
the core since 5.005.
=item version
BOptional If supplied, the version of the module is checked against this
number, and an exception raised if the version found is lower than that
requested.
=item optional
BOptional If true, then failure to locate the package (or a suitable
version) is not an error, but will generate a warning message.
=item message
If supplied, then this message will be given to the user in case of failure.
=back
=item EXEC_REQS
=over 4
=item name
Name of the executable used. The presence of this executable is checked, and
an exception is raised if it does not exist (in the PATH).
=item package
BOptional Name of the package in which the executable is to be found.
=item version
BOptional If supplied, the version of the module is checked against this
number, and an exception raised if the version found is lower than that
requested.
If supplied, the Lvopt key must also be supplied.
=item vopt
BOptional This is used only if the Cversion key is also used. This is the
option that is passed to the executable to ask for its version number. It may
be the empty string if no option is used (but must be defined if Cversion is
defined).
=item vexpect
BOptional This is used only if the Cversion key is also used. This is the
exit code to expect from the program when polling for its version number.
Defaults to 0. This is the exit code (value of C$? in the shell) to use,
Inot the value of the Cwait call.
=item optional
BOptional If true, then failure to locate the package (or a suitable
version) is not an error, but will generate a warning message.
=item message
If supplied, then this message will be given to the user in case of failure.
=back
=item NAME
The module name. It must conform to the established standard; in particular,
it must Bnot contain colon characters. The usual process, when providing a
single-package module (e.g., to provide CMIME::Base64), is to replace the
C:: occurences with hyphens (hence, CMIME-Base64).
=item VERSION_FROM
The module from which to establish the version number. This module must have
a line of the form C$VERSION = '0.01';. Declarative prefixes (.e.g, Cour)
are fine; Cour is the usual one, since C$VERSION is
