inline: switch to use_pagespec

[ikiwiki.git] / IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 2064c881a5497a3de1a15f28029d2f810218623e..c787612e12e622174797609fe5337ff57586bf8a 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -17,11 +17,12 @@ use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
            %forcerebuild %loaded_plugins};
 
 use Exporter q{import};
-our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
-                 pagespec_match_list bestlink htmllink readfile writefile
-                pagetype srcfile pagename displaytime will_render gettext urlto
-                targetpage add_underlay pagetitle titlepage linkpage
-                newpagefile inject add_link
+our @EXPORT = qw(hook debug error template htmlpage deptype use_pagespec
+                 add_depends pagespec_match pagespec_match_list bestlink
+                htmllink readfile writefile pagetype srcfile pagename
+                displaytime will_render gettext urlto targetpage
+                add_underlay pagetitle titlepage linkpage newpagefile
+                inject add_link
                  %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);
 our $VERSION = 3.00; # plugin interface version, next is ikiwiki version
@@ -1768,18 +1769,10 @@ sub rcs_receive () {
        $hooks{rcs}{rcs_receive}{call}->();
 }
 
-sub add_depends ($$;@) {
+sub add_depends ($$;$) {
        my $page=shift;
        my $pagespec=shift;
-
-       my $deptype=0;
-       if (@_) {
-               my %params=@_;
-               
-               $deptype=$deptype | $DEPEND_PRESENCE if $params{presence};
-               $deptype=$deptype | $DEPEND_LINKS if $params{links};
-       }
-       $deptype=$DEPEND_CONTENT unless $deptype;
+       my $deptype=shift || $DEPEND_CONTENT;
 
        # Is the pagespec a simple page name?
        if ($pagespec =~ /$config{wiki_file_regexp}/ &&
@@ -1791,18 +1784,118 @@ sub add_depends ($$;@) {
        # Analyse the pagespec, and match it against all pages
        # to get a list of influences, and add explicit dependencies
        # for those.
+       #my $sub=pagespec_translate($pagespec);
+       #return if $@;
+       #foreach my $p (keys %pagesources) {
+       #       my $r=$sub->($p, location => $page );
+       #       my %i=$r->influences;
+       #       foreach my $i (keys %i) {
+       #               $depends_simple{$page}{lc $i} |= $i{$i};
+       #       }
+       #}
+       print STDERR "warning: use of add_depends; influences not tracked\n";
+
+       $depends{$page}{$pagespec} |= $deptype;
+       return 1;
+}
+
+sub use_pagespec ($$;@) {
+       my $page=shift;
+       my $pagespec=shift;
+       my %params=@_;
+
        my $sub=pagespec_translate($pagespec);
-       return if $@;
-       foreach my $p (keys %pagesources) {
-               my $r=$sub->($p, location => $page );
-               my %i=$r->influences;
+       error "syntax error in pagespec \"$pagespec\""
+               if $@ || ! defined $sub;
+
+       my @candidates;
+       if (exists $params{limit}) {
+               @candidates=grep { $params{limit}->($_) } keys %pagesources;
+       }
+       else {
+               @candidates=keys %pagesources;
+       }
+
+       if (defined $params{sort}) {
+               my $f;
+               if ($params{sort} eq 'title') {
+                       $f=sub { pagetitle(basename($a)) cmp pagetitle(basename($b)) };
+               }
+               elsif ($params{sort} eq 'title_natural') {
+                       eval q{use Sort::Naturally};
+                       if ($@) {
+                               error(gettext("Sort::Naturally needed for title_natural sort"));
+                       }
+                       $f=sub { Sort::Naturally::ncmp(pagetitle(basename($a)), pagetitle(basename($b))) };
+                }
+               elsif ($params{sort} eq 'mtime') {
+                       $f=sub { $pagemtime{$b} <=> $pagemtime{$a} };
+               }
+               elsif ($params{sort} eq 'age') {
+                       $f=sub { $pagectime{$b} <=> $pagectime{$a} };
+               }
+               else {
+                       error sprintf(gettext("unknown sort type %s"), $params{sort});
+               }
+               @candidates = sort { &$f } @candidates;
+       }
+
+       @candidates=reverse(@candidates) if $params{reverse};
+       
+       my @matches;
+       my $firstfail;
+       my $count=0;
+       foreach my $p (@candidates) {
+               my $r=$sub->($p, location => $page);
+               if ($r) {
+                       push @matches, [$p, $r];
+                       last if defined $params{num} && ++$count == $params{num};
+               }
+               elsif (! defined $firstfail) {
+                       $firstfail=$r;
+               }
+       }
+       
+       $depends{$page}{$pagespec} |= ($params{deptype} || $DEPEND_CONTENT);
+
+       my @ret;
+       if (@matches) {
+               # Add all influences from successful matches.
+               foreach my $m (@matches) {
+                       push @ret, $m->[0];
+                       my %i=$m->[1]->influences;
+                       foreach my $i (keys %i) {
+                               $depends_simple{$page}{lc $i} |= $i{$i};
+                       }
+               }
+       }
+       elsif (defined $firstfail) {
+               # Add influences from one failure. (Which one should not
+               # matter; all should have the same influences.)
+               my %i=$firstfail->influences;
                foreach my $i (keys %i) {
                        $depends_simple{$page}{lc $i} |= $i{$i};
                }
+               error(sprintf(gettext("cannot match pages: %s"), $firstfail));
        }
 
-       $depends{$page}{$pagespec} |= $deptype;
-       return 1;
+       return @ret;
+}
+
+sub deptype (@) {
+       my $deptype=0;
+       foreach my $type (@_) {
+               if ($type eq 'presence') {
+                       $deptype |= $DEPEND_PRESENCE;
+               }
+               elsif ($type eq 'links') { 
+                       $deptype |= $DEPEND_LINKS;
+               }
+               elsif ($type eq 'content') {
+                       $deptype |= $DEPEND_CONTENT;
+               }
+       }
+       return $deptype;
 }
 
 sub file_pruned ($$) {