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#!/usr/bin/perl
# Provides a list of pages no other page links to.
package IkiWiki::Plugin::orphans;
use warnings;
use strict;
use IkiWiki 3.00;
sub import {
hook(type => "getsetup", id => "orphans", call => \&getsetup);
hook(type => "preprocess", id => "orphans", call => \&preprocess);
}
sub getsetup () {
return
plugin => {
safe => 1,
rebuild => undef,
},
}
sub preprocess (@) {
my %params=@_;
$params{pages}="*" unless defined $params{pages};
# Needs to update whenever a link changes, on any page
# since any page could link to one of the pages we're
# considering as orphans.
add_depends($params{page}, "*", deptype("links"));
# Also needs to update whenever potential orphans are added or
# removed.
add_depends($params{page}, $params{pages}, deptype("presence"));
my @orphans;
foreach my $page (pagespec_match_list(
[ grep { ! IkiWiki::backlink_pages($_) && $_ ne 'index' }
keys %pagesources ],
$params{pages}, location => $params{page})) {
# If the page has a link to some other page, it's
# indirectly linked to a page via that page's backlinks.
next if grep {
length $_ &&
($_ !~ /\/\Q$config{discussionpage}\E$/i || ! $config{discussion}) &&
bestlink($page, $_) !~ /^(\Q$page\E|)$/
} @{$links{$page}};
push @orphans, $page;
}
return gettext("All pages have other pages linking to them.") unless @orphans;
return "<ul>\n".
join("\n",
map {
"<li>".
htmllink($params{page}, $params{destpage}, $_,
noimageinline => 1).
"</li>"
} sort @orphans).
"</ul>\n";
}
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