From a326ffed1f20aaebf751002476696e9878178092 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kodama.kitenet.net>
Date: Tue, 26 Aug 2008 14:38:32 -0400
Subject: [PATCH] autoindex: Avoid re-adding previously deleted (or renamed)
 pages.

---
 IkiWiki/Plugin/autoindex.pm | 30 ++++++++++++++++++++++++++++--
 debian/changelog            |  1 +
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/IkiWiki/Plugin/autoindex.pm b/IkiWiki/Plugin/autoindex.pm
index 0e30b9900..6ff06538f 100644
--- a/IkiWiki/Plugin/autoindex.pm
+++ b/IkiWiki/Plugin/autoindex.pm
@@ -59,11 +59,37 @@ sub refresh () { #{{{
 			}
 		}, $dir);
 	}
+	
+	my %deleted;
+        if (ref $pagestate{index}{autoindex}{deleted}) {
+	       %deleted=%{$pagestate{index}{autoindex}{deleted}};
+		foreach my $dir (keys %deleted) {
+			# remove deleted page state if the deleted page is re-added,
+			# or if all its subpages are deleted
+			if ($deleted{$dir} && (exists $pages{$dir} ||
+			                       ! grep /^$dir\/.*/, keys %pages)) {
+				delete $deleted{$dir};
+			}
+		}
+		$pagestate{index}{autoindex}{deleted}=\%deleted;
+	}
 
 	my @needed;
 	foreach my $dir (keys %dirs) {
-		if (! exists $pages{$dir} && grep /^$dir\/.*/, keys %pages) {
-			push @needed, $dir;
+		if (! exists $pages{$dir} && ! $deleted{$dir} &&
+		    grep /^$dir\/.*/, keys %pages) {
+		    	if (exists $IkiWiki::pagemtime{$dir}) {
+				# This page must have just been deleted, so
+				# don't re-add it. And remember it was
+				# deleted.
+				if (! ref $pagestate{index}{autoindex}{deleted}) {
+					$pagestate{index}{autoindex}{deleted}={};
+				}
+				${$pagestate{index}{autoindex}{deleted}}{$dir}=1;
+			}
+			else {
+				push @needed, $dir;
+			}
 		}
 	}
 	
diff --git a/debian/changelog b/debian/changelog
index 485a34ddf..33862223c 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -18,6 +18,7 @@ ikiwiki (2.62) UNRELEASED; urgency=low
     originally part of the attachment plugin.
   * edittemplate: Don't wipe out edits on preview.
   * color: New plugin from ptecza.
+  * autoindex: Avoid re-adding previously deleted (or renamed) pages.
 
  -- Joey Hess <joeyh@debian.org>  Thu, 21 Aug 2008 16:20:58 -0400
 
-- 
2.39.5