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