X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/015ce28d7202abe928457f7b3e777a671ec0412d..46b3f54ab6c8d3004915f7a4d921203c9e343ec8:/IkiWiki/Plugin/teximg.pm

diff --git a/IkiWiki/Plugin/teximg.pm b/IkiWiki/Plugin/teximg.pm
index 2eb13c86c..369c10882 100644
--- a/IkiWiki/Plugin/teximg.pm
+++ b/IkiWiki/Plugin/teximg.pm
@@ -11,9 +11,18 @@ use HTML::Entities;
 use IkiWiki 2.00;
 
 sub import { #{{{
+	hook(type => "getsetup", id => "teximg", call => \&getsetup);
 	hook(type => "preprocess", id => "teximg", call => \&preprocess);
 } #}}}
 
+sub getsetup () { #{{{
+	return
+		plugin => {
+			safe => 1,
+			rebuild => undef,
+		},
+} #}}}
+
 sub preprocess (@) { #{{{
 	my %params = @_;
 	
@@ -27,14 +36,14 @@ sub preprocess (@) { #{{{
 	
 	my $code = $params{code};
 	if (! defined $code && ! length $code) {
-		return "[[teximg ".gettext("missing tex code"). "]]";
+		error gettext("missing tex code");
 	}
 
 	if (check($code)) {
 		return create($code, check_height($height), \%params);
 	}
 	else {
-		return "[[teximg ".gettext("code includes disallowed latex commands"). "]]";
+		error gettext("code includes disallowed latex commands")
 	}
 } #}}}
 
@@ -70,31 +79,22 @@ sub create ($$$) { #{{{
 
 	my $digest = md5_hex($code, $height);
 
-	my $teximgdir = "/teximag";
-	my $imglink = "$teximgdir/$digest.png";
-	my $imglog = "$teximgdir/$digest.log";
-	will_render($params->{destpage}, $imglink);
-	will_render($params->{destpage}, $imglog);
-
-	my $imgurl;
-	my $logurl;
-	if (! $params->{preview}) {
-		$imgurl = urlto($imglink, $params->{destpage});
-		$logurl = urlto($imglog, $params->{destpage});
-	}
-	else {
-		$imgurl="$config{url}/$teximgdir/$digest.png";
-		$logurl="$config{url}/$teximgdir/$digest.log";
-	}
+	my $imglink= $params->{page} . "/$digest.png";
+	my $imglog =  $params->{page} .  "/$digest.log";
+	will_render($params->{page}, $imglink);
+	will_render($params->{page}, $imglog);
+
+	my $imgurl=urlto($imglink, $params->{destpage});
+	my $logurl=urlto($imglog, $params->{destpage});
 	
 	if (-e "$config{destdir}/$imglink" ||
-	    gen_image($code, $height, $digest, $teximgdir)) {
+	    gen_image($code, $height, $digest, $params->{page})) {
 		return qq{<img src="$imgurl" alt="}
-			.(exists $params{alt} ? $params{alt} : encode_entities($code))
+			.(exists $params->{alt} ? $params->{alt} : encode_entities($code))
 			.qq{" class="teximg" />};
 	}
 	else {
-		return qq{[[teximg <a href="$logurl">}.gettext("failed to generate image from code")."</a>]]";
+		error qq{<a href="$logurl">}.gettext("failed to generate image from code")."</a>";
 	}
 } #}}}
 
@@ -128,12 +128,13 @@ sub gen_image ($$$$) { #{{{
 	}
 	else {
 		# store failure log
-		my $log;
+		my $log="";
 		{
-			open(my $f, '<', "$tmp/$digest.log");
-			local $/=undef;
-			$log = <$f>;
-			close($f);
+			if (open(my $f, '<', "$tmp/$digest.log")) {
+				local $/=undef;
+				$log = <$f>;
+				close($f);
+			}
 		}
 		writefile("$digest.log", "$config{destdir}/$imagedir", $log);