IkiWiki/Plugin/recentchangesdiff.pm



#!/usr/bin/perl
package IkiWiki::Plugin::recentchangesdiff;

use warnings;
use strict;
use IkiWiki 3.00;
use HTML::Entities;

my $maxlines=200;

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

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

sub pagetemplate (@) {
    my %params=@_;
    my $template=$params{template};
    if ($config{rcs} && exists $params{rev} && length $params{rev} &&
        $template->query(name => "diff")) {
        my @lines=IkiWiki::rcs_diff($params{rev});
        if (@lines) {
            my $diff;
            if (@lines > $maxlines) {
                # only include so many lines of diff
                $diff=join("", @lines[0..($maxlines-1)])."\n".
                    gettext("(Diff truncated)");
            }
            else {
                $diff=join("", @lines);
            }
            # escape html
            $diff = encode_entities($diff);
            # escape links and preprocessor stuff
            $diff = encode_entities($diff, '\[\]');
            $template->param(diff => $diff);
        }
    }
}

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