path: root/IkiWiki/Plugin/recentchanges.pm

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

use warnings;
use strict;
use IkiWiki 2.00;

sub import { #{{{
    hook(type => "checkconfig", id => "recentchanges", call => \&checkconfig);
    hook(type => "refresh", id => "recentchanges", call => \&refresh);
    hook(type => "htmlize", id => "_change", call => \&htmlize);
    hook(type => "pagetemplate", id => "recentchanges", call => \&pagetemplate);
} #}}}

sub checkconfig () { #{{{
    $config{recentchangespage}='recentchanges' unless defined $config{recentchangespage};
    $config{recentchangesnum}=100 unless defined $config{recentchangesnum};
} #}}}

sub refresh ($) { #{{{
    my %seen;

    # add new changes
    foreach my $change (IkiWiki::rcs_recentchanges($config{recentchangesnum})) {
        $seen{store($change, $config{recentchangespage})}=1;
    }
    
    # delete old and excess changes
    foreach my $page (keys %pagesources) {
        if ($page=~/^\Q$config{recentchangespage}\E\/change_/ && ! $seen{$page}) {
            unlink($config{srcdir}.'/'.$pagesources{$page});
        }
    }
} #}}}

# Enable the recentchanges link on wiki pages.
sub pagetemplate (@) { #{{{
    my %params=@_;
    my $template=$params{template};
    my $page=$params{page};
    if ($config{rcs} && $page ne $config{recentchangespage} &&
        $template->query(name => "recentchangesurl")) {
        $template->param(recentchangesurl => urlto($config{recentchangespage}, $page));
        $template->param(have_actions => 1);
    }
} #}}}

# Pages with extension _change have plain html markup, pass through.
sub htmlize (@) { #{{{
    my %params=@_;
    return $params{content};
} #}}}

sub store ($$$) { #{{{
    my $change=shift;

    my $page="$config{recentchangespage}/change_".IkiWiki::titlepage($change->{rev});

    # Optimisation to avoid re-writing pages. Assumes commits never
    # change (or that any changes are not important).
    return $page if exists $pagesources{$page} && ! $config{rebuild};

    # Limit pages to first 10, and add links to the changed pages.
    my $is_excess = exists $change->{pages}[10];
    delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
    $change->{pages} = [
        map {
            if (length $config{url}) {
                $_->{link} = "<a href=\"$config{url}/".
                    urlto($_->{page},"")."\">".
                    IkiWiki::pagetitle($_->{page})."</a>";
            }
            else {
                $_->{link} = IkiWiki::pagetitle($_->{page});
            }
            $_->{baseurl}="$config{url}/" if length $config{url};

            $_;
        } @{$change->{pages}}
    ];
    push @{$change->{pages}}, { link => '...' } if $is_excess;

    # See if the committer is an openid.
    $change->{author}=$change->{user};
    my $oiduser=eval { IkiWiki::openiduser($change->{user}) };
    if (defined $oiduser) {
        $change->{authorurl}=$change->{user};
        $change->{user}=$oiduser;
    }
    elsif (length $config{url}) {
        $change->{authorurl}="$config{url}/".
            (length $config{userdir} ? "$config{userdir}/" : "").
            $change->{user};
    }

    # escape  wikilinks and preprocessor stuff in commit messages
    if (ref $change->{message}) {
        foreach my $field (@{$change->{message}}) {
            if (exists $field->{line}) {
                $field->{line} =~ s/(?<!\\)\[\[/\\\[\[/g;
            }
        }
    }

    # Fill out a template with the change info.
    my $template=template("change.tmpl", blind_cache => 1);
    $template->param(
        %$change,
        commitdate => displaytime($change->{when}, "%X %x"),
        wikiname => $config{wikiname},
    );
    IkiWiki::run_hooks(pagetemplate => sub {
        shift->(page => $page, destpage => $page, template => $template);
    });

    my $file=$page."._change";
    writefile($file, $config{srcdir}, $template->output);
    utime $change->{when}, $change->{when}, "$config{srcdir}/$file";

    return $page;
} #}}}

sub updatechanges ($$) { #{{{
    my $subdir=shift;
    my @changes=@{shift()};
    
} #}}}

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