--- /dev/null
+This is another blogging support thing, and it relies on
+[[pagespec_relative_to_a_target]] (but only to figure out whether a given page
+has a child). Basically, you give it a page called missingparents.mdwn,
+something like this:
+
+<pre>
+[[missingparents pages="posts/* and !posts/*/*" generate="""[[template id=year text="$page"]]"""]]
+[[missingparents pages="posts/*/* and !posts/*/*/*" generate="""[[template id=month text="$page"]]"""]]
+[[missingparents pages="posts/*/*/* and !posts/*/*/*/*" generate="""[[template id=day text="$page"]]"""]]
+</pre>
+
+And it scans the whole wiki for pages that match the pagespecs but are missing
+parents. If any are found, they are generated automatically using the text in
+the "generate" parameter (except $page is substituted for the page title).
+*These generated pages aren't kept in version control*, but of course they're
+ordinary wiki pages and can be edited by the web form or otherwise added, at
+which point the missingparents plugin lets go of them. (TODO: CGI.pm needs to
+know to rcs_add these pages if they are edited, and it doesn't.) If all of the
+children of a missingparent page goes away, the missingparent itself is
+unlinked automatically, and all missingparents are deleted on wiki rebuild.
+
+To implement this, I needed to tell ikiwiki that pages were being added and
+removed in a non-standard way, and so created functions newpage and delpage
+in the IkiWiki namespace to do these things. delpage is modeled on the
+Render.pm code that deletes pages, so I re-used it in Render.pm. I also
+needed a way to add files to be deleted on a refresh(), so I added a
+needsdelete hook, parallel in form to needsbuild.
+
+This patch, or one like it, would enable better blogging support, by adding
+the ability to hierarchically organize blog posts and automatically generate
+structural pages for year, month, or day. Please apply. --Ethan
+
+<pre>
+Index: IkiWiki/Render.pm
+===================================================================
+--- IkiWiki/Render.pm (revision 3926)
++++ IkiWiki/Render.pm (working copy)
+@@ -322,17 +322,7 @@
+ if (! $exists{$page}) {
+ debug(sprintf(gettext("removing old page %s"), $page));
+ push @del, $pagesources{$page};
+- $links{$page}=[];
+- $renderedfiles{$page}=[];
+- $pagemtime{$page}=0;
+- prune($config{destdir}."/".$_)
+- foreach @{$oldrenderedfiles{$page}};
+- delete $pagesources{$page};
+- foreach (keys %destsources) {
+- if ($destsources{$_} eq $page) {
+- delete $destsources{$_};
+- }
+- }
++ delpage($page);
+ }
+ }
+
+@@ -377,6 +367,10 @@
+ }
+ }
+
++ if (@del) {
++ run_hooks(needsdelete => sub { shift->(\@del) });
++ }
++
+ if (%rendered || @del) {
+ # rebuild dependant pages
+ foreach my $f (@files) {
+Index: IkiWiki/Plugin/missingparents.pm
+===================================================================
+--- IkiWiki/Plugin/missingparents.pm (revision 0)
++++ IkiWiki/Plugin/missingparents.pm (revision 0)
+@@ -0,0 +1,136 @@
++#!/usr/bin/perl
++# missingparents plugin: detect missing parents of pages and create them
++package IkiWiki::Plugin::missingparents;
++
++use warnings;
++use strict;
++use IkiWiki 2.00;
++use IkiWiki::Plugin::relative;
++
++my %ownfiles;
++my @pagespecs;
++
++sub import { #{{{
++ hook(type => "checkconfig", id => "missingparents", call => \&checkconfig);
++ hook(type => "needsdelete", id => "missingparents", call => \&needsdelete);
++ hook(type => "needsbuild", id => "missingparents", call => \&needsbuild);
++ hook(type => "savestate", id => "missingparents", call => \&savestate);
++ hook(type => "preprocess", id => "missingparents", call => \&preprocess_missingparents);
++} # }}}
++
++sub checkconfig () { #{{{
++ IkiWiki::preprocess("missingparents", "missingparents",
++ readfile(srcfile("missingparents.mdwn")));
++ loadstate();
++ if ($config{rebuild}){
++ foreach my $file (keys %ownfiles) {
++ unlink $config{srcdir}.'/'.$file;
++ }
++ }
++} #}}}
++
++sub preprocess_missingparents (@) { #{{{
++ my %params=@_;
++
++ if (! defined $params{pages} || ! defined $params{generate}) {
++ return "[[missingparents ".gettext("missing pages or generate parameter")."]]";
++ }
++
++ push @pagespecs, \%params;
++
++ #translators: This is used to display what missingparents are defined.
++ #translators: First parameter is a pagespec, the second
++ #translators: is text for pages that match that pagespec.
++ return sprintf(gettext("missingparents in %s will be %s"),
++ '`'.$params{pages}.'`', '`\\'.$params{generate}.'`');
++} # }}}
++
++my $state_loaded=0;
++sub loadstate() { #{{{
++ my $filename = "$config{wikistatedir}/missingparents";
++ if (-e $filename) {
++ open (IN, $filename) ||
++ die "$filename: $!";
++ while (<IN>) {
++ chomp;
++ $ownfiles{$_} = 1;
++ }
++
++ close IN;
++
++ $state_loaded=1;
++ }
++} #}}}
++
++sub savestate() { #{{{
++ my $filename = "$config{wikistatedir}/missingparents.new";
++ my $cleanup = sub { unlink ($filename) };
++ open (OUT, ">$filename") || error("open $filename: $!", $cleanup);
++ foreach my $data (keys %ownfiles) {
++ print OUT "$data\n" if $ownfiles{$data};
++ }
++ rename($filename, "$config{wikistatedir}/missingparents") ||
++ error("rename $filename: $!", $cleanup);
++} #}}}
++
++sub needsdelete (@) { #{{{
++ my $files=shift;
++
++ my @mydel;
++ my $pruned = 1;
++ do {
++ $pruned = 0;
++ foreach my $file (keys %ownfiles) {
++ my $page = pagename($file);
++ if (! IkiWiki::PageSpec::match_has_child($page, "")) {
++ # No children -- get rid of it
++ push @mydel, $page;
++ delete $ownfiles{$file};
++ IkiWiki::delpage($page);
++ unlink $config{srcdir}."/".$file;
++ $pruned = 1;
++ }
++ }
++ } while($pruned);
++ foreach my $page (@mydel){
++ push @{$files}, $page;
++ }
++} #}}}
++
++sub check_matches($) { #{{{
++ my $page = shift;
++ return if $IkiWiki::pagesources{$page};
++
++ foreach my $miss (@pagespecs) {
++ next unless pagespec_match($page, $miss->{pages});
++ my $text = $miss->{generate};
++ $text =~ s/\$page/$page/;
++ my $output = $page.".mdwn";
++ writefile($output, "$config{srcdir}/", $text);
++ IkiWiki::newpage($output, $page);
++ return $output;
++ }
++ return "";
++} #}}}
++
++sub needsbuild ($) { #{{{
++ my $files=shift;
++ my @new;
++
++ foreach my $file (@{$files}) {
++ my $page = pagename $file;
++ my $newfile = "";
++ foreach my $parent (split '/', $page) {
++ $newfile .= $parent;
++ my $output = check_matches($newfile);
++ push @new, $output if $output;
++ $newfile .= "/";
++ }
++ }
++ foreach my $file (@new) {
++ $ownfiles{$file} = 1;
++ push @{$files}, $file;
++ }
++} #}}}
++
++1
+Index: IkiWiki/Plugin/rst.pm
+===================================================================
+--- IkiWiki/Plugin/rst.pm (revision 3926)
++++ IkiWiki/Plugin/rst.pm (working copy)
+@@ -25,7 +25,7 @@
+ html = publish_string(stdin.read(), writer_name='html',
+ settings_overrides = { 'halt_level': 6,
+ 'file_insertion_enabled': 0,
+- 'raw_enabled': 0 }
++ 'raw_enabled': 1 }
+ );
+ print html[html.find('<body>')+6:html.find('</body>')].strip();
+ ";
+Index: IkiWiki.pm
+===================================================================
+--- IkiWiki.pm (revision 3926)
++++ IkiWiki.pm (working copy)
+@@ -16,7 +16,7 @@
+ use Exporter q{import};
+ our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
+ bestlink htmllink readfile writefile pagetype srcfile pagename
+- displaytime will_render gettext urlto targetpage
++ displaytime will_render gettext urlto targetpage newpage delpage
+ %config %links %renderedfiles %pagesources %destsources);
+ our $VERSION = 2.00; # plugin interface version, next is ikiwiki version
+ our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
+@@ -330,6 +336,30 @@
+ error("failed renaming $newfile to $destdir/$file: $!", $cleanup);
+ } #}}}
+
++sub newpage($$) { #{{{
++ my $file=shift;
++ my $page=shift;
++
++ $pagemtime{$page} = $pagectime{$page} = time;
++ $pagesources{$page} = $file;
++ $pagecase{lc $page} = $page;
++} #}}}
++
++sub delpage($) { #{{{
++ my $page=shift;
++ $links{$page}=[];
++ $renderedfiles{$page}=[];
++ $pagemtime{$page}=0;
++ prune($config{destdir}."/".$_)
++ foreach @{$oldrenderedfiles{$page}};
++ delete $pagesources{$page};
++ foreach (keys %destsources) {
++ if ($destsources{$_} eq $page) {
++ delete $destsources{$_};
++ }
++ }
++} #}}}
++
+ my %cleared;
+ sub will_render ($$;$) { #{{{
+ my $page=shift;
+</pre>
\ No newline at end of file
sipb-www / ikiwiki.git / commitdiff
