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-rw-r--r--doc/todo/allow_site-wide_meta_definitions.mdwn117
1 files changed, 66 insertions, 51 deletions
diff --git a/doc/todo/allow_site-wide_meta_definitions.mdwn b/doc/todo/allow_site-wide_meta_definitions.mdwn
index f935a9acb..3c6c3b5aa 100644
--- a/doc/todo/allow_site-wide_meta_definitions.mdwn
+++ b/doc/todo/allow_site-wide_meta_definitions.mdwn
@@ -5,11 +5,39 @@ 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 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..3132257 100644
+ index 6fe9cda..c4079fd 100644
--- a/IkiWiki/Plugin/meta.pm
+++ b/IkiWiki/Plugin/meta.pm
@@ -13,6 +13,7 @@ sub import {
@@ -20,76 +48,63 @@ my github ikiwiki fork):
}
sub getsetup () {
- @@ -302,6 +303,15 @@ sub match {
+ @@ -305,6 +306,17 @@ 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}{$type};
+ + if($config{"meta_defaults"}) {
+ + foreach my $default (@{$config{"meta_defaults"}}) {
+ + preprocess(%$default, page => $page,
+ + destpage => $page, preview => 0);
+ + }
+ }
+}
+
package IkiWiki::PageSpec;
sub match_title ($$;@) {
+ 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:
* title
--- [[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. Tonight I had a go at implementing the syntax
->> you propose here. I decided the simplest thing to do might be for the scan
->> subroutine to convert any hashes found in the meta_defaults list into calls
->> to the preprocess routine. I've got a bit stuck trying to convert a hash to
->> a named parameter list (or just a subroutine parameter list that is). I may
->> try to look again in the morning (brain a bit sleepy)
->>
->> ...and on writing this comment I see your second suggestion was essentially
->> to do exactly that :) -- [[Jon]]
-
->>> ok, it's easier than I thought, I just pass the hash and it's handled
->>> correctly. Right now can't figure out why my hashes get converted into
->>> strings prior to me seeing them in scan():
-
- $VAR64 = [
- 'HASH(0xc2daf8)',
- 'HASH(0xc2db40)'
- ];
-
->>> ...but it *really* is bedtime :) -- [[Jon]]
+>> -- [[Jon]]