X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/ee1ad53c4c2710aa7ded61bdc56f3a8cce514f22..7481329bdd11d81c4b3e85a446ab1e4bfcc298c8:/IkiWiki/Plugin/graphviz.pm

diff --git a/IkiWiki/Plugin/graphviz.pm b/IkiWiki/Plugin/graphviz.pm
index 5d666e1be..4ed8b89f1 100644
--- a/IkiWiki/Plugin/graphviz.pm
+++ b/IkiWiki/Plugin/graphviz.pm
@@ -5,18 +5,28 @@ package IkiWiki::Plugin::graphviz;
 
 use warnings;
 use strict;
-use IkiWiki 2.00;
+use IkiWiki 3.00;
 use IPC::Open2;
 
-sub import { #{{{
+sub import {
+	hook(type => "getsetup", id => "graphviz", call => \&getsetup);
 	hook(type => "preprocess", id => "graph", call => \&graph);
-} # }}}
+}
+
+sub getsetup () {
+	return
+		plugin => {
+			safe => 1,
+			rebuild => undef,
+			section => "widget",
+		},
+}
 
 my %graphviz_programs = (
 	"dot" => 1, "neato" => 1, "fdp" => 1, "twopi" => 1, "circo" => 1
 );
 
-sub render_graph (\%) { #{{{
+sub render_graph (\%) {
 	my %params = %{(shift)};
 
 	my $src = "$params{type} g {\n";
@@ -27,21 +37,20 @@ sub render_graph (\%) { #{{{
 	$src .= "}\n";
 
 	# Use the sha1 of the graphviz code as part of its filename.
-	eval q{use Digest::SHA1};
+	eval q{use Digest::SHA};
 	error($@) if $@;
 	my $dest=$params{page}."/graph-".
-		IkiWiki::possibly_foolish_untaint(Digest::SHA1::sha1_hex($src)).
+		IkiWiki::possibly_foolish_untaint(Digest::SHA::sha1_hex($src)).
 		".png";
 	will_render($params{page}, $dest);
 
 	if (! -e "$config{destdir}/$dest") {
 		my $pid;
-		my $sigpipe=0;;
+		my $sigpipe=0;
 		$SIG{PIPE}=sub { $sigpipe=1 };
 		$pid=open2(*IN, *OUT, "$params{prog} -Tpng");
 
 		# open2 doesn't respect "use open ':utf8'"
-		binmode (IN, ':utf8');
 		binmode (OUT, ':utf8');
 
 		print OUT $src;
@@ -56,13 +65,14 @@ sub render_graph (\%) { #{{{
 
 		waitpid $pid, 0;
 		$SIG{PIPE}="DEFAULT";
-		return  "[[graph ".gettext("failed to run graphviz")."]]" if ($sigpipe);
+		error gettext("failed to run graphviz") if $sigpipe;
 
 		if (! $params{preview}) {
 			writefile($dest, $config{destdir}, $png, 1);
 		}
 		else {
-			# can't write the file, so embed it in a data uri
+			# in preview mode, embed the image in a data uri
+			# to avoid temp file clutter
 			eval q{use MIME::Base64};
 			error($@) if $@;
 			return "<img src=\"data:image/png;base64,".
@@ -70,17 +80,17 @@ sub render_graph (\%) { #{{{
 		}
 	}
 
-	return "<img src=\"".urlto($dest, $params{page})."\" />\n";
-} #}}}
+	return "<img src=\"".urlto($dest, $params{destpage})."\" />\n";
+}
 
-sub graph (@) { #{{{
+sub graph (@) {
 	my %params=@_;
 	$params{src} = "" unless defined $params{src};
 	$params{type} = "digraph" unless defined $params{type};
 	$params{prog} = "dot" unless defined $params{prog};
-	return "[[graph ".gettext("prog not a valid graphviz program")."]]" unless $graphviz_programs{$params{prog}};
+	error gettext("prog not a valid graphviz program") unless $graphviz_programs{$params{prog}};
 
 	return render_graph(%params);
-} # }}}
+}
 
 1