web commit by JeremyReed: Add a line between the bullets and the patch to fix the...

[git.ikiwiki.info.git] / IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 1cbe975c058cc7a455dc4127067d1bf943776651..dcb68bca6d525578fee12e7bdd25d5f92c1e51ef 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -8,37 +8,45 @@ use HTML::Entities;
 use open qw{:utf8 :std};
 
 use vars qw{%config %links %oldlinks %oldpagemtime %pagectime %pagecase
 use open qw{:utf8 :std};
 
 use vars qw{%config %links %oldlinks %oldpagemtime %pagectime %pagecase

-            %renderedfiles %pagesources %depends %hooks %forcerebuild};
+            %renderedfiles %oldrenderedfiles %pagesources %depends %hooks
+           %forcerebuild $gettext_obj};

 
 use Exporter q{import};
 our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
                  bestlink htmllink readfile writefile pagetype srcfile pagename
 
 use Exporter q{import};
 our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
                  bestlink htmllink readfile writefile pagetype srcfile pagename

+                 displaytime will_render gettext

                  %config %links %renderedfiles %pagesources);
                  %config %links %renderedfiles %pagesources);

+our $VERSION = 1.02; # plugin interface version, next is ikiwiki version
+our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
+my $installdir=''; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE

 
 # Optimisation.
 use Memoize;
 memoize("abs2rel");
 memoize("pagespec_translate");
 
 # Optimisation.
 use Memoize;
 memoize("abs2rel");
 memoize("pagespec_translate");

-
-my $installdir=''; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
+memoize("file_pruned");

 
 sub defaultconfig () { #{{{
 
 sub defaultconfig () { #{{{

-       wiki_file_prune_regexp => qr{((^|/).svn/|\.\.|^\.|\/\.|\.x?html?$|\.rss$)},
-       wiki_link_regexp => qr/\[\[(?:([^\]\|]+)\|)?([^\s\]]+)\]\]/,
+       wiki_file_prune_regexps => [qr/\.\./, qr/^\./, qr/\/\./,
+               qr/\.x?html?$/, qr/\.ikiwiki-new$/,
+               qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//],
+       wiki_link_regexp => qr/\[\[(?:([^\]\|]+)\|)?([^\s\]#]+)(?:#([^\s\]]+))?\]\]/,

        wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/,
        wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/,

+       web_commit_regexp => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/,

        verbose => 0,
        syslog => 0,
        wikiname => "wiki",
        default_pageext => "mdwn",
        cgi => 0,
        verbose => 0,
        syslog => 0,
        wikiname => "wiki",
        default_pageext => "mdwn",
        cgi => 0,

-       rcs => 'svn',
+       post_commit => 0,
+       rcs => '',

        notify => 0,
        url => '',
        cgiurl => '',
        historyurl => '',
        diffurl => '',
        notify => 0,
        url => '',
        cgiurl => '',
        historyurl => '',
        diffurl => '',

-       anonok => 0,

        rss => 0,
        rss => 0,

+       atom => 0,

        discussion => 1,
        rebuild => 0,
        refresh => 0,
        discussion => 1,
        rebuild => 0,
        refresh => 0,


@@ -48,6 +56,8 @@ sub defaultconfig () { #{{{
        wrappermode => undef,
        svnrepo => undef,
        svnpath => "trunk",
        wrappermode => undef,
        svnrepo => undef,
        svnpath => "trunk",

+       gitorigin_branch => "origin",
+       gitmaster_branch => "master",

        srcdir => undef,
        destdir => undef,
        pingurl => [],
        srcdir => undef,
        destdir => undef,
        pingurl => [],


@@ -56,10 +66,13 @@ sub defaultconfig () { #{{{
        setup => undef,
        adminuser => undef,
        adminemail => undef,
        setup => undef,
        adminuser => undef,
        adminemail => undef,

-       plugin => [qw{mdwn inline htmlscrubber}],
+       plugin => [qw{mdwn inline htmlscrubber passwordauth signinedit
+                     lockedit conditional}],

        timeformat => '%c',
        locale => undef,
        sslcookie => 0,
        timeformat => '%c',
        locale => undef,
        sslcookie => 0,

+       httpauth => 0,
+       userdir => "",

 } #}}}
    
 sub checkconfig () { #{{{
 } #}}}
    
 sub checkconfig () { #{{{


@@ -70,12 +83,16 @@ sub checkconfig () { #{{{
        }
        if (defined $config{locale}) {
                eval q{use POSIX};
        }
        if (defined $config{locale}) {
                eval q{use POSIX};

-               $ENV{LANG} = $config{locale}
-                       if POSIX::setlocale(&POSIX::LC_TIME, $config{locale});
+               error($@) if $@;
+               if (POSIX::setlocale(&POSIX::LC_ALL, $config{locale})) {
+                       $ENV{LANG}=$config{locale};
+                       $gettext_obj=undef;
+               }

        }
 
        if ($config{w3mmode}) {
                eval q{use Cwd q{abs_path}};
        }
 
        if ($config{w3mmode}) {
                eval q{use Cwd q{abs_path}};

+               error($@) if $@;

                $config{srcdir}=possibly_foolish_untaint(abs_path($config{srcdir}));
                $config{destdir}=possibly_foolish_untaint(abs_path($config{destdir}));
                $config{cgiurl}="file:///\$LIB/ikiwiki-w3m.cgi/".$config{cgiurl}
                $config{srcdir}=possibly_foolish_untaint(abs_path($config{srcdir}));
                $config{destdir}=possibly_foolish_untaint(abs_path($config{destdir}));
                $config{cgiurl}="file:///\$LIB/ikiwiki-w3m.cgi/".$config{cgiurl}


@@ -84,10 +101,7 @@ sub checkconfig () { #{{{
        }
 
        if ($config{cgi} && ! length $config{url}) {
        }
 
        if ($config{cgi} && ! length $config{url}) {

-               error("Must specify url to wiki with --url when using --cgi\n");
-       }
-       if ($config{rss} && ! length $config{url}) {
-               error("Must specify url to wiki with --url when using --rss\n");
+               error(gettext("Must specify url to wiki with --url when using --cgi"));

        }
        
        $config{wikistatedir}="$config{srcdir}/.ikiwiki"
        }
        
        $config{wikistatedir}="$config{srcdir}/.ikiwiki"


@@ -107,13 +121,8 @@ sub checkconfig () { #{{{
 } #}}}
 
 sub loadplugins () { #{{{
 } #}}}
 
 sub loadplugins () { #{{{

-       foreach my $plugin (@{$config{plugin}}) {
-               my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin);
-               eval qq{use $mod};
-               if ($@) {
-                       error("Failed to load plugin $mod: $@");
-               }
-       }
+       loadplugin($_) foreach @{$config{plugin}};
+       

        run_hooks(getopt => sub { shift->() });
        if (grep /^-/, @ARGV) {
                print STDERR "Unknown option: $_\n"
        run_hooks(getopt => sub { shift->() });
        if (grep /^-/, @ARGV) {
                print STDERR "Unknown option: $_\n"


@@ -122,13 +131,31 @@ sub loadplugins () { #{{{
        }
 } #}}}
 
        }
 } #}}}
 

-sub error ($) { #{{{
+sub loadplugin ($) { #{{{
+       my $plugin=shift;
+
+       return if grep { $_ eq $plugin} @{$config{disable_plugins}};
+
+       my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin);
+       eval qq{use $mod};
+       if ($@) {
+               error("Failed to load plugin $mod: $@");
+       }
+} #}}}
+
+sub error ($;$) { #{{{
+       my $message=shift;
+       my $cleaner=shift;

        if ($config{cgi}) {
                print "Content-type: text/html\n\n";
        if ($config{cgi}) {
                print "Content-type: text/html\n\n";

-               print misctemplate("Error", "<p>Error: @_</p>");
+               print misctemplate(gettext("Error"),
+                       "<p>".gettext("Error").": $message</p>");

        }
        }

-       log_message(error => @_);
-       exit(1);
+       log_message(debug => $message) if $config{syslog};
+       if (defined $cleaner) {
+               $cleaner->();
+       }
+       die $message."\n";

 } #}}}
 
 sub debug ($) { #{{{
 } #}}}
 
 sub debug ($) { #{{{


@@ -148,7 +175,7 @@ sub log_message ($$) { #{{{
                        $log_open=1;
                }
                eval {
                        $log_open=1;
                }
                eval {

-                       Sys::Syslog::syslog($type, join(" ", @_));
+                       Sys::Syslog::syslog($type, "%s", join(" ", @_));

                }
        }
        elsif (! $config{cgi}) {
                }
        }
        elsif (! $config{cgi}) {


@@ -211,9 +238,10 @@ sub srcfile ($) { #{{{
        error("internal error: $file cannot be found");
 } #}}}
 
        error("internal error: $file cannot be found");
 } #}}}
 

-sub readfile ($;$) { #{{{
+sub readfile ($;$$) { #{{{

        my $file=shift;
        my $binary=shift;
        my $file=shift;
        my $binary=shift;

+       my $wantfd=shift;

 
        if (-l $file) {
                error("cannot read a symlink ($file)");
 
        if (-l $file) {
                error("cannot read a symlink ($file)");


@@ -222,16 +250,18 @@ sub readfile ($;$) { #{{{
        local $/=undef;
        open (IN, $file) || error("failed to read $file: $!");
        binmode(IN) if ($binary);
        local $/=undef;
        open (IN, $file) || error("failed to read $file: $!");
        binmode(IN) if ($binary);

+       return \*IN if $wantfd;

        my $ret=<IN>;
        my $ret=<IN>;

-       close IN;
+       close IN || error("failed to read $file: $!");

        return $ret;
 } #}}}
 
        return $ret;
 } #}}}
 

-sub writefile ($$$;$) { #{{{
+sub writefile ($$$;$$) { #{{{

        my $file=shift; # can include subdirs
        my $destdir=shift; # directory to put file in
        my $content=shift;
        my $binary=shift;
        my $file=shift; # can include subdirs
        my $destdir=shift; # directory to put file in
        my $content=shift;
        my $binary=shift;

+       my $writer=shift;

        
        my $test=$file;
        while (length $test) {
        
        my $test=$file;
        while (length $test) {


@@ -240,8 +270,12 @@ sub writefile ($$$;$) { #{{{
                }
                $test=dirname($test);
        }
                }
                $test=dirname($test);
        }

+       my $newfile="$destdir/$file.ikiwiki-new";
+       if (-l $newfile) {
+               error("cannot write to a symlink ($newfile)");
+       }

 
 

-       my $dir=dirname("$destdir/$file");
+       my $dir=dirname($newfile);

        if (! -d $dir) {
                my $d="";
                foreach my $s (split(m!/+!, $dir)) {
        if (! -d $dir) {
                my $d="";
                foreach my $s (split(m!/+!, $dir)) {


@@ -251,11 +285,42 @@ sub writefile ($$$;$) { #{{{
                        }
                }
        }
                        }
                }
        }

-       
-       open (OUT, ">$destdir/$file") || error("failed to write $destdir/$file: $!");
+
+       my $cleanup = sub { unlink($newfile) };
+       open (OUT, ">$newfile") || error("failed to write $newfile: $!", $cleanup);

        binmode(OUT) if ($binary);
        binmode(OUT) if ($binary);

-       print OUT $content;
-       close OUT;
+       if ($writer) {
+               $writer->(\*OUT, $cleanup);
+       }
+       else {
+               if (length $content) {
+                       print OUT $content || error("failed writing to $newfile: $!", $cleanup);
+               }
+       }
+       close OUT || error("failed saving $newfile: $!", $cleanup);
+       rename($newfile, "$destdir/$file") || 
+               error("failed renaming $newfile to $destdir/$file: $!", $cleanup);
+} #}}}
+
+my %cleared;
+sub will_render ($$;$) { #{{{
+       my $page=shift;
+       my $dest=shift;
+       my $clear=shift;
+
+       # Important security check.
+       if (-e "$config{destdir}/$dest" && ! $config{rebuild} &&
+           ! grep { $_ eq $dest } (@{$renderedfiles{$page}}, @{$oldrenderedfiles{$page}})) {
+               error("$config{destdir}/$dest independently created, not overwriting with version from $page");
+       }
+
+       if (! $clear || $cleared{$page}) {
+               $renderedfiles{$page}=[$dest, grep { $_ ne $dest } @{$renderedfiles{$page}}];
+       }
+       else {
+               $renderedfiles{$page}=[$dest];
+               $cleared{$page}=1;
+       }

 } #}}}
 
 sub bestlink ($$) { #{{{
 } #}}}
 
 sub bestlink ($$) { #{{{


@@ -263,6 +328,11 @@ sub bestlink ($$) { #{{{
        my $link=shift;
        
        my $cwd=$page;
        my $link=shift;
        
        my $cwd=$page;

+       if ($link=~s/^\/+//) {
+               # absolute links
+               $cwd="";
+       }
+

        do {
                my $l=$cwd;
                $l.="/" if length $l;
        do {
                my $l=$cwd;
                $l.="/" if length $l;


@@ -276,6 +346,10 @@ sub bestlink ($$) { #{{{
                }
        } while $cwd=~s!/?[^/]+$!!;
 
                }
        } while $cwd=~s!/?[^/]+$!!;
 

+       if (length $config{userdir} && exists $links{"$config{userdir}/".lc($link)}) {
+               return "$config{userdir}/".lc($link);
+       }
+

        #print STDERR "warning: page $page, broken link: $link\n";
        return "";
 } #}}}
        #print STDERR "warning: page $page, broken link: $link\n";
        return "";
 } #}}}


@@ -286,10 +360,18 @@ sub isinlinableimage ($) { #{{{
        $file=~/\.(png|gif|jpg|jpeg)$/i;
 } #}}}
 
        $file=~/\.(png|gif|jpg|jpeg)$/i;
 } #}}}
 

-sub pagetitle ($) { #{{{
+sub pagetitle ($;$) { #{{{

        my $page=shift;
        my $page=shift;

-       $page=~s/__(\d+)__/&#$1;/g;
+       my $unescaped=shift;
+
+       if ($unescaped) {
+               $page=~s/__(\d+)__/chr($1)/eg;
+       }
+       else {
+               $page=~s/__(\d+)__/&#$1;/g;
+       }

        $page=~y/_/ /;
        $page=~y/_/ /;

+

        return $page;
 } #}}}
 
        return $page;
 } #}}}
 


@@ -319,7 +401,7 @@ sub baseurl (;$) { #{{{
 sub abs2rel ($$) { #{{{
        # Work around very innefficient behavior in File::Spec if abs2rel
        # is passed two relative paths. It's much faster if paths are
 sub abs2rel ($$) { #{{{
        # Work around very innefficient behavior in File::Spec if abs2rel
        # is passed two relative paths. It's much faster if paths are

-       # absolute!
+       # absolute! (Debian bug #376658; fixed in debian unstable now)

        my $path="/".shift;
        my $base="/".shift;
 
        my $path="/".shift;
        my $base="/".shift;
 


@@ -333,40 +415,43 @@ sub displaytime ($) { #{{{
        my $time=shift;
 
        eval q{use POSIX};
        my $time=shift;
 
        eval q{use POSIX};

+       error($@) if $@;

        # strftime doesn't know about encodings, so make sure
        # its output is properly treated as utf8
        return decode_utf8(POSIX::strftime(
                        $config{timeformat}, localtime($time)));
 } #}}}
 
        # strftime doesn't know about encodings, so make sure
        # its output is properly treated as utf8
        return decode_utf8(POSIX::strftime(
                        $config{timeformat}, localtime($time)));
 } #}}}
 

-sub htmllink ($$$;$$$) { #{{{
+sub htmllink ($$$;@) { #{{{

        my $lpage=shift; # the page doing the linking
        my $page=shift; # the page that will contain the link (different for inline)
        my $link=shift;
        my $lpage=shift; # the page doing the linking
        my $page=shift; # the page that will contain the link (different for inline)
        my $link=shift;

-       my $noimageinline=shift; # don't turn links into inline html images
-       my $forcesubpage=shift; # force a link to a subpage
-       my $linktext=shift; # set to force the link text to something
+       my %opts=@_;

 
        my $bestlink;
 
        my $bestlink;

-       if (! $forcesubpage) {
+       if (! $opts{forcesubpage}) {

                $bestlink=bestlink($lpage, $link);
        }
        else {
                $bestlink="$lpage/".lc($link);
        }
 
                $bestlink=bestlink($lpage, $link);
        }
        else {
                $bestlink="$lpage/".lc($link);
        }
 

-       $linktext=pagetitle(basename($link)) unless defined $linktext;
+       my $linktext;
+       if (defined $opts{linktext}) {
+               $linktext=$opts{linktext};
+       }
+       else {
+               $linktext=pagetitle(basename($link));
+       }

        
        return "<span class=\"selflink\">$linktext</span>"
                if length $bestlink && $page eq $bestlink;
        
        
        return "<span class=\"selflink\">$linktext</span>"
                if length $bestlink && $page eq $bestlink;
        

-       # TODO BUG: %renderedfiles may not have it, if the linked to page
-       # was also added and isn't yet rendered! Note that this bug is
-       # masked by the bug that makes all new files be rendered twice.
-       if (! grep { $_ eq $bestlink } values %renderedfiles) {
+       if (! grep { $_ eq $bestlink } map { @{$_} } values %renderedfiles) {

                $bestlink=htmlpage($bestlink);
        }
                $bestlink=htmlpage($bestlink);
        }

-       if (! grep { $_ eq $bestlink } values %renderedfiles) {
+       if (! grep { $_ eq $bestlink } map { @{$_} } values %renderedfiles) {
+               return $linktext unless length $config{cgiurl};

                return "<span><a href=\"".
                        cgiurl(do => "create", page => lc($link), from => $page).
                        "\">?</a>$linktext</span>"
                return "<span><a href=\"".
                        cgiurl(do => "create", page => lc($link), from => $page).
                        "\">?</a>$linktext</span>"


@@ -374,9 +459,14 @@ sub htmllink ($$$;$$$) { #{{{
        
        $bestlink=abs2rel($bestlink, dirname($page));
        
        
        $bestlink=abs2rel($bestlink, dirname($page));
        

-       if (! $noimageinline && isinlinableimage($bestlink)) {
+       if (! $opts{noimageinline} && isinlinableimage($bestlink)) {

                return "<img src=\"$bestlink\" alt=\"$linktext\" />";
        }
                return "<img src=\"$bestlink\" alt=\"$linktext\" />";
        }

+
+       if (defined $opts{anchor}) {
+               $bestlink.="#".$opts{anchor};
+       }
+

        return "<a href=\"$bestlink\">$linktext</a>";
 } #}}}
 
        return "<a href=\"$bestlink\">$linktext</a>";
 } #}}}
 


@@ -411,18 +501,20 @@ sub linkify ($$$) { #{{{
        my $content=shift;
 
        $content =~ s{(\\?)$config{wiki_link_regexp}}{
        my $content=shift;
 
        $content =~ s{(\\?)$config{wiki_link_regexp}}{

-               $2 ? ( $1 ? "[[$2|$3]]" : htmllink($lpage, $page, titlepage($3), 0, 0, pagetitle($2)))
-                  : ( $1 ? "[[$3]]" :    htmllink($lpage, $page, titlepage($3)))
+               defined $2
+                       ? ( $1 ? "[[$2|$3]]" : htmllink($lpage, $page, titlepage($3), anchor => $4, linktext => pagetitle($2)))
+                       : ( $1 ? "[[$3]]"    : htmllink($lpage, $page, titlepage($3), anchor => $4))

        }eg;
        
        return $content;
 } #}}}
 
 my %preprocessing;
        }eg;
        
        return $content;
 } #}}}
 
 my %preprocessing;

-sub preprocess ($$$) { #{{{
+sub preprocess ($$$;$) { #{{{

        my $page=shift; # the page the data comes from
        my $destpage=shift; # the page the data will appear in (different for inline)
        my $content=shift;
        my $page=shift; # the page the data comes from
        my $destpage=shift; # the page the data will appear in (different for inline)
        my $content=shift;

+       my $scan=shift;

 
        my $handle=sub {
                my $escape=shift;
 
        my $handle=sub {
                my $escape=shift;


@@ -432,6 +524,7 @@ sub preprocess ($$$) { #{{{
                        return "[[$command $params]]";
                }
                elsif (exists $hooks{preprocess}{$command}) {
                        return "[[$command $params]]";
                }
                elsif (exists $hooks{preprocess}{$command}) {

+                       return "" if $scan && ! $hooks{preprocess}{$command}{scan};

                        # Note: preserve order of params, some plugins may
                        # consider it significant.
                        my @params;
                        # Note: preserve order of params, some plugins may
                        # consider it significant.
                        my @params;


@@ -461,7 +554,13 @@ sub preprocess ($$$) { #{{{
                        if ($preprocessing{$page}++ > 3) {
                                # Avoid loops of preprocessed pages preprocessing
                                # other pages that preprocess them, etc.
                        if ($preprocessing{$page}++ > 3) {
                                # Avoid loops of preprocessed pages preprocessing
                                # other pages that preprocess them, etc.

-                               return "[[$command preprocessing loop detected on $page at depth $preprocessing{$page}]]";
+                               #translators: The first parameter is a
+                               #translators: preprocessor directive name,
+                               #translators: the second a page name, the
+                               #translators: third a number.
+                               return "[[".sprintf(gettext("%s preprocessing loop detected on %s at depth %i"),
+                                       $command, $page, $preprocessing{$page}).
+                               "]]";

                        }
                        my $ret=$hooks{preprocess}{$command}{call}->(
                                @params,
                        }
                        my $ret=$hooks{preprocess}{$command}{call}->(
                                @params,


@@ -480,7 +579,7 @@ sub preprocess ($$$) { #{{{
        return $content;
 } #}}}
 
        return $content;
 } #}}}
 

-sub filter ($$) {
+sub filter ($$) { #{{{

        my $page=shift;
        my $content=shift;
 
        my $page=shift;
        my $content=shift;
 


@@ -489,7 +588,7 @@ sub filter ($$) {
        });
 
        return $content;
        });
 
        return $content;

-}
+} #}}}

 
 sub indexlink () { #{{{
        return "<a href=\"$config{url}\">$config{wikiname}</a>";
 
 sub indexlink () { #{{{
        return "<a href=\"$config{url}\">$config{wikiname}</a>";


@@ -503,11 +602,11 @@ sub lockwiki () { #{{{
        }
        open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
                error ("cannot write to $config{wikistatedir}/lockfile: $!");
        }
        open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
                error ("cannot write to $config{wikistatedir}/lockfile: $!");

-       if (! flock(WIKILOCK, 2 | 4)) {
+       if (! flock(WIKILOCK, 2 | 4)) { # LOCK_EX | LOCK_NB

                debug("wiki seems to be locked, waiting for lock");
                my $wait=600; # arbitrary, but don't hang forever to 
                              # prevent process pileup
                debug("wiki seems to be locked, waiting for lock");
                my $wait=600; # arbitrary, but don't hang forever to 
                              # prevent process pileup

-               for (1..600) {
+               for (1..$wait) {

                        return if flock(WIKILOCK, 2 | 4);
                        sleep 1;
                }
                        return if flock(WIKILOCK, 2 | 4);
                        sleep 1;
                }


@@ -519,6 +618,29 @@ sub unlockwiki () { #{{{
        close WIKILOCK;
 } #}}}
 
        close WIKILOCK;
 } #}}}
 

+sub commit_hook_enabled () { #{{{
+       open(COMMITLOCK, "+>$config{wikistatedir}/commitlock") ||
+               error ("cannot write to $config{wikistatedir}/commitlock: $!");
+       if (! flock(COMMITLOCK, 1 | 4)) { # LOCK_SH | LOCK_NB to test
+               close COMMITLOCK;
+               return 0;
+       }
+       close COMMITLOCK;
+       return 1;
+} #}}}
+
+sub disable_commit_hook () { #{{{
+       open(COMMITLOCK, ">$config{wikistatedir}/commitlock") ||
+               error ("cannot write to $config{wikistatedir}/commitlock: $!");
+       if (! flock(COMMITLOCK, 2)) { # LOCK_EX
+               error("failed to get commit lock");
+       }
+} #}}}
+
+sub enable_commit_hook () { #{{{
+       close COMMITLOCK;
+} #}}}
+

 sub loadindex () { #{{{
        open (IN, "$config{wikistatedir}/index") || return;
        while (<IN>) {
 sub loadindex () { #{{{
        open (IN, "$config{wikistatedir}/index") || return;
        while (<IN>) {


@@ -526,6 +648,7 @@ sub loadindex () { #{{{
                chomp;
                my %items;
                $items{link}=[];
                chomp;
                my %items;
                $items{link}=[];

+               $items{dest}=[];

                foreach my $i (split(/ /, $_)) {
                        my ($item, $val)=split(/=/, $i, 2);
                        push @{$items{$item}}, decode_entities($val);
                foreach my $i (split(/ /, $_)) {
                        my ($item, $val)=split(/=/, $i, 2);
                        push @{$items{$item}}, decode_entities($val);


@@ -540,7 +663,8 @@ sub loadindex () { #{{{
                        $oldlinks{$page}=[@{$items{link}}];
                        $links{$page}=[@{$items{link}}];
                        $depends{$page}=$items{depends}[0] if exists $items{depends};
                        $oldlinks{$page}=[@{$items{link}}];
                        $links{$page}=[@{$items{link}}];
                        $depends{$page}=$items{depends}[0] if exists $items{depends};

-                       $renderedfiles{$page}=$items{dest}[0];
+                       $renderedfiles{$page}=[@{$items{dest}}];
+                       $oldrenderedfiles{$page}=[@{$items{dest}}];

                        $pagecase{lc $page}=$page;
                }
                $pagectime{$page}=$items{ctime}[0];
                        $pagecase{lc $page}=$page;
                }
                $pagectime{$page}=$items{ctime}[0];


@@ -554,42 +678,63 @@ sub saveindex () { #{{{
        if (! -d $config{wikistatedir}) {
                mkdir($config{wikistatedir});
        }
        if (! -d $config{wikistatedir}) {
                mkdir($config{wikistatedir});
        }

-       open (OUT, ">$config{wikistatedir}/index") || 
-               error("cannot write to $config{wikistatedir}/index: $!");
+       my $newfile="$config{wikistatedir}/index.new";
+       my $cleanup = sub { unlink($newfile) };
+       open (OUT, ">$newfile") || error("cannot write to $newfile: $!", $cleanup);

        foreach my $page (keys %oldpagemtime) {
                next unless $oldpagemtime{$page};
                my $line="mtime=$oldpagemtime{$page} ".
                        "ctime=$pagectime{$page} ".
        foreach my $page (keys %oldpagemtime) {
                next unless $oldpagemtime{$page};
                my $line="mtime=$oldpagemtime{$page} ".
                        "ctime=$pagectime{$page} ".

-                       "src=$pagesources{$page} ".
-                       "dest=$renderedfiles{$page}";
-               $line.=" link=$_" foreach @{$links{$page}};
+                       "src=$pagesources{$page}";
+               $line.=" dest=$_" foreach @{$renderedfiles{$page}};
+               my %count;
+               $line.=" link=$_" foreach grep { ++$count{$_} == 1 } @{$links{$page}};

                if (exists $depends{$page}) {
                        $line.=" depends=".encode_entities($depends{$page}, " \t\n");
                }
                if (exists $depends{$page}) {
                        $line.=" depends=".encode_entities($depends{$page}, " \t\n");
                }

-               print OUT $line."\n";
+               print OUT $line."\n" || error("failed writing to $newfile: $!", $cleanup);

        }
        }

-       close OUT;
+       close OUT || error("failed saving to $newfile: $!", $cleanup);
+       rename($newfile, "$config{wikistatedir}/index") ||
+               error("failed renaming $newfile to $config{wikistatedir}/index", $cleanup);
+} #}}}
+
+sub template_file ($) { #{{{
+       my $template=shift;
+
+       foreach my $dir ($config{templatedir}, "$installdir/share/ikiwiki/templates") {
+               return "$dir/$template" if -e "$dir/$template";
+       }
+       return undef;

 } #}}}
 
 sub template_params (@) { #{{{
 } #}}}
 
 sub template_params (@) { #{{{

-       my $filename=shift;
-       
+       my $filename=template_file(shift);
+
+       if (! defined $filename) {
+               return if wantarray;
+               return "";
+       }
+

        require HTML::Template;
        require HTML::Template;

-       return filter => sub {
+       my @ret=(
+               filter => sub {

                        my $text_ref = shift;
                        $$text_ref=&Encode::decode_utf8($$text_ref);
                },
                        my $text_ref = shift;
                        $$text_ref=&Encode::decode_utf8($$text_ref);
                },

-               filename => "$config{templatedir}/$filename",
+               filename => $filename,

                loop_context_vars => 1,
                die_on_bad_params => 0,
                loop_context_vars => 1,
                die_on_bad_params => 0,

-               @_;
+               @_
+       );
+       return wantarray ? @ret : {@ret};

 } #}}}
 
 sub template ($;@) { #{{{
        HTML::Template->new(template_params(@_));
 } #}}}
 
 } #}}}
 
 sub template ($;@) { #{{{
        HTML::Template->new(template_params(@_));
 } #}}}
 

-sub misctemplate ($$) { #{{{
+sub misctemplate ($$;@) { #{{{

        my $title=shift;
        my $pagebody=shift;
        
        my $title=shift;
        my $pagebody=shift;
        


@@ -599,8 +744,12 @@ sub misctemplate ($$) { #{{{
                indexlink => indexlink(),
                wikiname => $config{wikiname},
                pagebody => $pagebody,
                indexlink => indexlink(),
                wikiname => $config{wikiname},
                pagebody => $pagebody,

-       baseurl => baseurl(),
+               baseurl => baseurl(),
+               @_,

        );
        );

+       run_hooks(pagetemplate => sub {
+               shift->(page => "", destpage => "", template => $template);
+       });

        return $template->output;
 }#}}}
 
        return $template->output;
 }#}}}
 


@@ -610,6 +759,8 @@ sub hook (@) { # {{{
        if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {
                error "hook requires type, call, and id parameters";
        }
        if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {
                error "hook requires type, call, and id parameters";
        }

+
+       return if $param{no_override} && exists $hooks{$param{type}}{$param{id}};

        
        $hooks{$param{type}}{$param{id}}=\%param;
 } # }}}
        
        $hooks{$param{type}}{$param{id}}=\%param;
 } # }}}


@@ -621,7 +772,15 @@ sub run_hooks ($$) { # {{{
        my $sub=shift;
 
        if (exists $hooks{$type}) {
        my $sub=shift;
 
        if (exists $hooks{$type}) {

+               my @deferred;

                foreach my $id (keys %{$hooks{$type}}) {
                foreach my $id (keys %{$hooks{$type}}) {

+                       if ($hooks{$type}{$id}{last}) {
+                               push @deferred, $id;
+                               next;
+                       }
+                       $sub->($hooks{$type}{$id}{call});
+               }
+               foreach my $id (@deferred) {

                        $sub->($hooks{$type}{$id}{call});
                }
        }
                        $sub->($hooks{$type}{$id}{call});
                }
        }


@@ -664,6 +823,49 @@ sub safequote ($) { #{{{
        return "q{$s}";
 } #}}}
 
        return "q{$s}";
 } #}}}
 

+sub add_depends ($$) { #{{{
+       my $page=shift;
+       my $pagespec=shift;
+       
+       if (! exists $depends{$page}) {
+               $depends{$page}=$pagespec;
+       }
+       else {
+               $depends{$page}=pagespec_merge($depends{$page}, $pagespec);
+       }
+} # }}}
+
+sub file_pruned ($$) { #{{{
+       require File::Spec;
+       my $file=File::Spec->canonpath(shift);
+       my $base=File::Spec->canonpath(shift);
+       $file=~s#^\Q$base\E/*##;
+
+       my $regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';
+       $file =~ m/$regexp/;
+} #}}}
+
+sub gettext { #{{{
+       # Only use gettext in the rare cases it's needed.
+       if (exists $ENV{LANG} || exists $ENV{LC_ALL} || exists $ENV{LC_MESSAGES}) {
+               if (! $gettext_obj) {
+                       $gettext_obj=eval q{
+                               use Locale::gettext q{textdomain};
+                               Locale::gettext->domain('ikiwiki')
+                       };
+                       if ($@) {
+                               print STDERR "$@";
+                               $gettext_obj=undef;
+                               return shift;
+                       }
+               }
+               return $gettext_obj->get(shift);
+       }
+       else {
+               return shift;
+       }
+} #}}}
+

 sub pagespec_merge ($$) { #{{{
        my $a=shift;
        my $b=shift;
 sub pagespec_merge ($$) { #{{{
        my $a=shift;
        my $b=shift;


@@ -704,39 +906,46 @@ sub pagespec_translate ($) { #{{{
                elsif ($word eq "(" || $word eq ")" || $word eq "!") {
                        $code.=" ".$word;
                }
                elsif ($word eq "(" || $word eq ")" || $word eq "!") {
                        $code.=" ".$word;
                }

-               elsif ($word =~ /^(link|backlink|created_before|created_after|creation_month|creation_year|creation_day)\((.+)\)$/) {
-                       $code.=" match_$1(\$page, ".safequote($2).")";
+               elsif ($word =~ /^(\w+)\((.*)\)$/) {
+                       if (exists $IkiWiki::PageSpec::{"match_$1"}) {
+                               $code.=" IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).")";
+                       }
+                       else {
+                               $code.=" 0";
+                       }

                }
                else {
                }
                else {

-                       $code.=" match_glob(\$page, ".safequote($word).")";
+                       $code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \$from)";

                }
        }
 
        return $code;
 } #}}}
 
                }
        }
 
        return $code;
 } #}}}
 

-sub add_depends ($$) { #{{{
-       my $page=shift;
-       my $pagespec=shift;
-       
-       if (! exists $depends{$page}) {
-               $depends{$page}=$pagespec;
-       }
-       else {
-               $depends{$page}=pagespec_merge($depends{$page}, $pagespec);
-       }
-} # }}}
-
-sub pagespec_match ($$) { #{{{
+sub pagespec_match ($$;$) { #{{{

        my $page=shift;
        my $spec=shift;
        my $page=shift;
        my $spec=shift;

+       my $from=shift;

 
        return eval pagespec_translate($spec);
 } #}}}
 
 
        return eval pagespec_translate($spec);
 } #}}}
 

-sub match_glob ($$) { #{{{
+package IkiWiki::PageSpec;
+
+sub match_glob ($$$) { #{{{

        my $page=shift;
        my $glob=shift;
        my $page=shift;
        my $glob=shift;

+       my $from=shift;
+       if (! defined $from){
+               $from = "";
+       }
+
+       # relative matching
+       if ($glob =~ m!^\./!) {
+               $from=~s!/?[^/]+$!!;
+               $glob=~s!^\./!!;
+               $glob="$from/$glob" if length $from;
+       }

 
        # turn glob into safe regexp
        $glob=quotemeta($glob);
 
        # turn glob into safe regexp
        $glob=quotemeta($glob);


@@ -750,7 +959,7 @@ sub match_link ($$) { #{{{
        my $page=shift;
        my $link=lc(shift);
 
        my $page=shift;
        my $link=lc(shift);
 

-       my $links = $links{$page} or return undef;
+       my $links = $IkiWiki::links{$page} or return undef;

        foreach my $p (@$links) {
                return 1 if lc $p eq $link;
        }
        foreach my $p (@$links) {
                return 1 if lc $p eq $link;
        }


@@ -765,8 +974,8 @@ sub match_created_before ($$) { #{{{
        my $page=shift;
        my $testpage=shift;
 
        my $page=shift;
        my $testpage=shift;
 

-       if (exists $pagectime{$testpage}) {
-               return $pagectime{$page} < $pagectime{$testpage};
+       if (exists $IkiWiki::pagectime{$testpage}) {
+               return $IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage};

        }
        else {
                return 0;
        }
        else {
                return 0;


@@ -777,8 +986,8 @@ sub match_created_after ($$) { #{{{
        my $page=shift;
        my $testpage=shift;
 
        my $page=shift;
        my $testpage=shift;
 

-       if (exists $pagectime{$testpage}) {
-               return $pagectime{$page} > $pagectime{$testpage};
+       if (exists $IkiWiki::pagectime{$testpage}) {
+               return $IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage};

        }
        else {
                return 0;
        }
        else {
                return 0;


@@ -786,15 +995,15 @@ sub match_created_after ($$) { #{{{
 } #}}}
 
 sub match_creation_day ($$) { #{{{
 } #}}}
 
 sub match_creation_day ($$) { #{{{

-       return ((gmtime($pagectime{shift()}))[3] == shift);
+       return ((gmtime($IkiWiki::pagectime{shift()}))[3] == shift);

 } #}}}
 
 sub match_creation_month ($$) { #{{{
 } #}}}
 
 sub match_creation_month ($$) { #{{{

-       return ((gmtime($pagectime{shift()}))[4] + 1 == shift);
+       return ((gmtime($IkiWiki::pagectime{shift()}))[4] + 1 == shift);

 } #}}}
 
 sub match_creation_year ($$) { #{{{
 } #}}}
 
 sub match_creation_year ($$) { #{{{

-       return ((gmtime($pagectime{shift()}))[5] + 1900 == shift);
+       return ((gmtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift);

 } #}}}
 
 1
 } #}}}
 
 1