* Introduce add_plugins and disable_plugins config options in setup files.

This allows adding or removing plugins w/o overriding the whole list of
  default plugins, which makes it easier to upgrade when new default plugins
  are added.

IkiWiki/Render.pm

@@ -226,10 +226,7 @@ sub check_overwrite ($$) { #{{{
 	my $src=shift;
 	
 	if (! exists $renderedfiles{$src} && -e $dest && ! $config{rebuild}) {
-		error("$dest already exists and was rendered from ".
-			join(" ",(grep { $renderedfiles{$_} eq $dest } keys
-				%renderedfiles)).
-			", before, so not rendering from $src");
+		error("$dest already exists and was not rendered from $src before");
 	}
 } #}}}
 

IkiWiki/Setup/Standard.pm

@@ -19,6 +19,18 @@ package IkiWiki;
 sub setup_standard {
 	my %setup=%{$_[1]};
 
+	$setup{plugin}=$config{plugin};
+	if (exists $setup{add_plugins}) {
+		push @{$setup{plugin}}, @{$setup{add_plugins}};
+		delete $setup{add_plugins};
+	}
+	if (exists $setup{disable_plugins}) {
+		foreach my $plugin (@{$setup{disable_plugins}}) {
+			$setup{plugin}=[grep { $_ ne $plugin } @{$setup{plugin}}];
+		}
+		delete $setup{disable_plugins};
+	}
+
 	if (! $config{refresh}) {
 		debug("generating wrappers..");
 		my @wrappers=@{$setup{wrappers}};

debian/NEWS

@@ -1,3 +1,22 @@
+ikiwiki (1.8) unstable; urgency=low
+
+  If your wiki is configured with a setup file, you should modify it to
+  stop setting the "plugin" list directly, and instead add or remove plugins
+  via the add_plugins and disable_plugins lines. For example, if you had:
+
+  plugin => [qw{inline smiley search}],
+
+  Change it to these lines, which disables the default htmlscrubber plugin
+  and adds the two additional plugins:
+
+  add_plugins => [qw{smiley search}],
+  disable_plugins => [qw{htmlscrubber}],
+
+  Making this change makes your ikiwiki setup file more future-proof since
+  new default plugins will be automatically used.
+
+ -- Joey Hess <joeyh@debian.org>  Mon,  3 Jul 2006 16:59:29 -0400
+
 ikiwiki (1.1) unstable; urgency=low
 
   There have been several configuration changes in this release of ikiwiki:

debian/changelog

@@ -23,8 +23,12 @@ ikiwiki (1.8) UNRELEASED; urgency=low
   * Centralised all calls to HTML::Template and force all the templates
     to be read as utf8.
   * Support pages with utf8 filenames. Patch by Faidon Liambotis.
+  * Introduce add_plugins and disable_plugins config options in setup files.
+    This allows adding or removing plugins w/o overriding the whole list of
+    default plugins, which makes it easier to upgrade when new default plugins
+    are added.
 
- -- Joey Hess <joeyh@debian.org>  Mon,  3 Jul 2006 16:17:20 -0400
+ -- Joey Hess <joeyh@debian.org>  Mon,  3 Jul 2006 16:57:37 -0400
 
 ikiwiki (1.7) unstable; urgency=low
 

doc/ikiwiki.setup

@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # Configuration file for ikiwiki.
-# Passing this to ikiwiki --setup will make ikiwiki generate two
-# wrapper programs, one for cgi and one for a subversion post-commit hook.
+# Passing this to ikiwiki --setup will make ikiwiki generate wrappers and 
+# build the wiki.
 #
 # Remember to re-run ikiwiki --setup any time you edit this file.
 
@@ -69,7 +69,9 @@ use IkiWiki::Setup::Standard {
 	discussion => 1,
 	# Time format (for strftime)
 	#timeformat => '%c',
-	# To change the enabled plugins, edit this list
-	#plugin => [qw{pagecount inline brokenlinks search smiley
-	#              htmlscrubber}],
+	
+	# To add plugins, list them here.
+	#add_plugins => [qw{pagecount brokenlinks search smiley}],
+	# If you want to disable any of the default plugins, list them here.
+	#disable_plugins => [qw{inline htmlscrubber}],
 }

doc/plugins.mdwn

@@ -4,7 +4,7 @@ install and use plugins contributed by others.
 The [[inline]] and [[htmlscrubber]] plugins are enabled by default.
 
 To enable other plugins, use the `--plugin` switch described in [[usage]],
-or the equivalent line in [[ikiwiki.setup]].
+or the equivalent `add_plugins` line in [[ikiwiki.setup]].
 
 # Plugin directory
 

ikiwiki

@@ -57,7 +57,7 @@ sub getconfig () { #{{{
 				push @{$config{plugin}}, $_[1];
 			},
 			"disable-plugin=s@" => sub {
-				$config{plugin}=[grep { $_ ne $_[1] } @{$config{plugin}} ];
+				$config{plugin}=[grep { $_ ne $_[1] } @{$config{plugin}}];
 			},
 			"pingurl" => sub {
 				push @{$config{pingurl}}, $_[1];