path: root/IkiWiki/Plugin/brokenlinks.pm

#!/usr/bin/perl
# Provides a list of broken links.
package IkiWiki::Plugin::brokenlinks;

use warnings;
use strict;
use IkiWiki 3.00;

sub import {
    hook(type => "getsetup", id => "brokenlinks", call => \&getsetup);
    hook(type => "preprocess", id => "brokenlinks", call => \&preprocess);
}

sub getsetup {
    return
        plugin => {
            safe => 1,
            rebuild => undef,
        },
}

sub preprocess (@) {
    my %params=@_;
    $params{pages}="*" unless defined $params{pages};
    
    # Needs to update whenever the links on a page change.
    add_depends($params{page}, $params{pages}, deptype("links"));
    
    my @broken;
    foreach my $link (keys %IkiWiki::brokenlinks) {
        next if $link =~ /.*\/\Q$config{discussionpage}\E/i && $config{discussion};

        my @pages;
        foreach my $page (@{$IkiWiki::brokenlinks{$link}}) {
            push @pages, $page
                if pagespec_match($page, $params{pages}, location => $params{page});
        }
        next unless @pages;

        my $page=$IkiWiki::brokenlinks{$link}->[0];
        push @broken, sprintf(gettext("%s from %s"),
            htmllink($page, $params{destpage}, $link, noimageinline => 1),
            join(", ", map {
                htmllink($params{page}, $params{destpage}, $_,  noimageinline => 1)
            } @pages)
        );
    }
    
    return gettext("There are no broken links!") unless @broken;
    return "<ul>\n"
        .join("\n",
            map {
                "<li>$_</li>"
            }
            sort @broken)
        ."</ul>\n";
}

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