editpage: Be more aggressive (and less buggy) about cleaning up temporary files rende...
[ikiwiki.git] / IkiWiki / Plugin / editpage.pm
index 687ebf51e63d4c7daebdcf6bfe172ad90674a8da..d12c6732de2b317da24fa0360967ca6fb19acb00 100644 (file)
@@ -8,6 +8,7 @@ use open qw{:utf8 :std};
 
 sub import { #{{{
        hook(type => "getsetup", id => "editpage", call => \&getsetup);
+       hook(type => "refresh", id => "editpage", call => \&refresh);
         hook(type => "sessioncgi", id => "editpage", call => \&IkiWiki::cgi_editpage);
 } # }}}
 
@@ -19,6 +20,26 @@ sub getsetup () { #{{{
                },
 } #}}}
 
+sub refresh () {
+       if (exists $wikistate{editpage} && exists $wikistate{editpage}{previews}) {
+               # Expire old preview files after one hour.
+               my $expire=time - (60 * 60);
+
+               my @previews;
+               foreach my $file (@{$wikistate{editpage}{previews}}) {
+                       my $mtime=(stat("$config{destdir}/$file"))[9];
+                       if (defined $mtime && $mtime <= $expire) {
+                               debug(sprintf(gettext("removing old preview %s"), $file));
+                               IkiWiki::prune("$config{destdir}/$file");
+                       }
+                       elsif (defined $mtime) {
+                               push @previews, $file;
+                       }
+               }
+               $wikistate{editpage}{previews}=\@previews;
+       }
+}
+
 # Back to ikiwiki namespace for the rest, this code is very much
 # internal to ikiwiki even though it's separated into a plugin,
 # and other plugins use the functions below.
@@ -169,6 +190,7 @@ sub cgi_editpage ($$) { #{{{
                        # temporarily record its type
                        $pagesources{$page}=$page.".".$type;
                }
+               my %wasrendered=map { $_ => 1 } @{$renderedfiles{$page}};
 
                my $content=$form->field('editcontent');
 
@@ -191,11 +213,18 @@ sub cgi_editpage ($$) { #{{{
                        );
                });
                $form->tmpl_param("page_preview", $preview);
-       
+               
                if ($new) {
                        delete $pagesources{$page};
                }
-               # previewing may have created files on disk
+
+               # Previewing may have created files on disk.
+               # Keep a list of these to be deleted later.
+               my %previews = map { $_ => 1 } @{$wikistate{editpage}{previews}};
+               foreach my $file (@{$renderedfiles{$page}}) {
+                       $previews{$file}=1 unless $wasrendered{$file};
+               }
+               @{$wikistate{editpage}{previews}} = keys %previews;
                saveindex();
        }
        elsif ($form->submitted eq "Save Page") {