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# -*-perl-*-
# This is a drop-in replacement for the MakeMaker Perl module. Instead
# of generating a Makefile, it extracts the dependency information for
# other Perl modules. It is used to simplify the generation of pkgsrc
# packages for Perl modules.
package ExtUtils::MakeMaker;
use strict;
use warnings;
use constant conf_pkgsrcdir => '@PKGSRCDIR@';
BEGIN {
use Exporter;
use vars qw(@ISA @EXPORT);
@ISA = qw(Exporter);
@EXPORT = qw(WriteMakefile prompt);
}
# Finds and returns the category a given package lies in.
# If the package does not exist, C<undef> is returned.
# If the package exists more than once, it is unspecified which
# of the categories is returned.
sub find_category($) {
my ($pkg) = @_;
my ($retval, $pkgsrcdir);
opendir(D, conf_pkgsrcdir) or die;
foreach my $cat (readdir(D)) {
next if ($cat =~ qr"^\.");
if (-d (conf_pkgsrcdir."/${cat}/${pkg}")) {
$retval = $cat;
}
}
closedir(D);
return $retval;
}
sub WriteMakefile(%) {
my (%options) = @_;
if (exists($options{"PREREQ_PM"})) {
my $deps = $options{"PREREQ_PM"};
foreach my $dep (sort(keys(%{$deps}))) {
my ($ver, $pkgbase, $category);
$ver = $deps->{$dep};
($pkgbase = "p5-${dep}") =~ s/::/-/g;
$category = find_category($pkgbase);
if (defined($category)) {
printf("%s>=%s:../../%s/%s\n", $pkgbase, $ver, $category, $pkgbase);
} else {
# If the package does not exist but the
# Perl module can be loaded, assume that
# no extra dependency is needed. Otherwise fail.
if (!eval(sprintf("use %s %s; 1;", $dep, $ver))) {
die("$0: ERROR: No pkgsrc package found for dependency ${dep}>=${ver}.\n$@\n");
}
}
}
}
}
sub prompt(@) {
my ($message, $default) = @_;
return $default || "";
}
1;
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