X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/ec9b0a628d5daafdff27ef711bda3b22be4b0009..e5cab4165d9c12b8b68a15ce2c037d21dd2090b0:/doc/todo/allow_site-wide_meta_definitions.mdwn?ds=sidebyside

diff --git a/doc/todo/allow_site-wide_meta_definitions.mdwn b/doc/todo/allow_site-wide_meta_definitions.mdwn
index 5b7a5bea5..20c8c02ac 100644
--- a/doc/todo/allow_site-wide_meta_definitions.mdwn
+++ b/doc/todo/allow_site-wide_meta_definitions.mdwn
@@ -1,57 +1,106 @@
+[[!tag plugins/meta patch]]
+[[!template id=gitbranch branch=jon/defaultmeta author="[[Jon]]"]]
+
 I'd like to define [[plugins/meta]] values to apply across all pages
 site-wide unless the pages define their own: default values for meta
 definitions essentially.
 
-Here's a patch[[!tag patch]] to achieve this (also in the "defaultmeta" branch of
-my github ikiwiki fork):
+    <snip old patch, see below for latest>
+
+-- [[Jon]]
+
+> This doesn't support multiple-argument meta directives like
+> `link=x rel=y`, or meta directives with special side-effects like
+> `updated`.
+>
+> The first could be solved (if you care) by a syntax like this:
+>
+>     meta_defaults => [
+>         { copyright => "© me" },
+>         { link => "about:blank", rel => "silly", },
+>     ]
+>
+> The second could perhaps be solved by invoking `meta::preprocess` from within
+> `scan` (which might be a simplification anyway), although this is complicated
+> by the fact that some (but not all!) meta headers are idempotent.
+> 
+> --[[smcv]]
+
+>> Thanks for your comment. I've revised the patch to use the config syntax
+>> you suggest. I need to perform some more testing to make sure I've
+>> addressed the issues you highlight.
+>> 
+>> I had to patch part of IkiWiki core, the merge routine in Setup, because
+>> the use of `possibly_foolish_untaint` was causing the hashrefs at the deep
+>> end of the data structure to be converted into strings. The specific change
+>> I've made may not be acceptable, though -- I'd appreciate someone providing
+>> some feedback on that hunk!
 
     diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
-    index b229592..a307db4 100644
+    index 6fe9cda..2f8c098 100644
     --- a/IkiWiki/Plugin/meta.pm
     +++ b/IkiWiki/Plugin/meta.pm
-    @@ -13,6 +13,7 @@ sub import {
-            hook(type => "needsbuild", id => "meta", call => \&needsbuild);
-            hook(type => "preprocess", id => "meta", call => \&preprocess, scan => 1);
-            hook(type => "pagetemplate", id => "meta", call => \&pagetemplate);
-    +       hook(type => "scan", id => "meta", call => \&scan);
+    @@ -13,6 +13,8 @@ sub import {
+     	hook(type => "needsbuild", id => "meta", call => \&needsbuild);
+     	hook(type => "preprocess", id => "meta", call => \&preprocess, scan => 1);
+     	hook(type => "pagetemplate", id => "meta", call => \&pagetemplate);
+    +	hook(type => "scan", id => "meta", call => \&scan)
+    +		if $config{"meta_defaults"};
      }
      
      sub getsetup () {
-    @@ -302,6 +303,15 @@ sub match {
-            }
+    @@ -305,6 +307,15 @@ sub match {
+     	}
      }
      
     +sub scan() {
-    +       my %params = @_;
-    +       my $page = $params{page};
-    +    foreach my $type (map { s/^meta_//; $_ } grep /^meta_/, keys %config) {
-    +               $pagestate{$page}{meta}{$type} = $config{"meta_$type"}
-    +                       unless defined $pagestate{$page}{meta}{$type};
-    +       }
+    +	my %params = @_;
+    +	my $page = $params{page};
+    +	foreach my $default (@{$config{"meta_defaults"}}) {
+    +		preprocess(%$default, page => $page,
+    +			destpage => $page, preview => 0);
+    +	}
     +}
     +
      package IkiWiki::PageSpec;
      
      sub match_title ($$;@) {
-    @@ -324,4 +334,5 @@ sub match_copyright ($$;@) {
-            IkiWiki::Plugin::meta::match("copyright", @_);
-     }
-     
-    +
-     1
+    diff --git a/IkiWiki/Setup.pm b/IkiWiki/Setup.pm
+    index 8a25ecc..e4d50c9 100644
+    --- a/IkiWiki/Setup.pm
+    +++ b/IkiWiki/Setup.pm
+    @@ -51,7 +51,13 @@ sub merge ($) {
+     					$config{$c}=$setup{$c};
+     				}
+     				else {
+    -					$config{$c}=[map { IkiWiki::possibly_foolish_untaint($_) } @{$setup{$c}}]
+    +					$config{$c}=[map {
+    +						if(ref $_ eq 'HASH') {
+    +							$_
+    +						} else {
+    +							IkiWiki::possibly_foolish_untaint($_)
+    +						}
+    +					} @{$setup{$c}}];
+     				}
+     			}
+     			elsif (ref $setup{$c} eq 'HASH') {
     diff --git a/doc/ikiwiki/directive/meta.mdwn b/doc/ikiwiki/directive/meta.mdwn
-    index 000f461..200c4b2 100644
+    index 000f461..8d34ee4 100644
     --- a/doc/ikiwiki/directive/meta.mdwn
     +++ b/doc/ikiwiki/directive/meta.mdwn
-    @@ -12,6 +12,12 @@ also specifies some additional sub-parameters.
+    @@ -12,6 +12,16 @@ also specifies some additional sub-parameters.
      The field values are treated as HTML entity-escaped text, so you can include
      a quote in the text by writing `&quot;` and so on.
      
     +You can also define site-wide defaults for meta values by including them
-    +in your setup file, e.g.
+    +in your setup file. The key used is `meta_defaults` and the value is a list
+    +of hashes, one per meta directive. e.g.:
     +
-    +       meta_copyright => "Copyright 2007 by Joey Hess",
-    +       meta_license   => "GPL v2+",
+    +	meta_defaults = [
+    +		{ copyright => "Copyright 2007 by Joey Hess" },
+    +		{ license   => "GPL v2+" },
+    +		{ link => "somepage", rel => "site entrypoint", },
+    +	],
     +
      Supported fields: