+# Round 1
+
+## Design
+
+7. For each fancy podcast episode, write a blog post containing
+ `\[[!meta enclosure="WikiLink/to/media.mp3"]]`. (Don't specify
+ more than one enclosure -- but if you do, last one wins.)
+7. When rendering to HTML (single-page or inlined), append a link
+ to the media file.
+7. When rendering to RSS/Atom, the text is the entry's content and
+ the media file is its enclosure.
+7. Don't break simple podcasts in pursuit of fancy podcasts.
+
+## Implementation
+
+### Completed
+
+* Cover the existing simple podcast behavior with tests.
+* Add an `enclosure` field to [[plugins/meta]] that expands the
+ given [[ikiwiki/WikiLink]] to an absolute URL (feed enclosures
+ pretty much need to be, and the reference feeds I've looked at
+ all do this).
+* Write failing tests for the desired single-page and inlined
+ HTML behavior, then make them pass by adding enclosure stanzas
+ to `{,inline}page.tmpl`.
+* Write failing tests for the desired RSS/Atom behavior, then make
+ them pass via changes to `{atom,rss}item.tmpl` and [[plugins/inline]].
+* Match feature-for-feature with
+ [tru_podcast](http://www.rainskit.com/blog/542/tru_podcast-a-podcasting-plugin-for-textpattern)
+ (what [[schmonz]] will be migrating from).
+* Enrich [feed metadata](http://cyber.law.harvard.edu/rss/rss.html)
+ by catching up `rsspage.tmpl` to `atompage.tmpl`.
+* Verify that [[plugins/more]] plays well with fancy podcasts.
+* Verify that the feeds validate.
+* Subscribe to a fancy feed in some common podcatchers and verify
+ display details against a reference podcast.
+* Verify smooth transitions for two common use cases (see testing
+ details below).
+* Code review: don't add enclosure divs unless we have enclosures.
+* Code review: genericize download link for more use cases.
+* Code review: don't confuse old readers with Atom names in RSS.
+* Code review: instead of hacking back to `$link`, just provide it.
+* Code review: show author in addition to feedname, if different.
+
+### Code review
+
+ + # XXX better way to compute relative to srcdir?
+ + my $file = $absurl;
+ + $file =~ s|^$config{url}/||;
+
+I don't think ikiwiki offers a better way to do that, because there is
+normally no reason to do that. Why does it need an url of this form here?
+--[[Joey]]
+
+> In all the popular, production-quality podcast feeds I've looked
+> at, enclosure URLs are always absolute (even when they could be
+> expressed concisely as relative). [Apple's
+> example](http://www.apple.com/itunes/podcasts/specs.html#example)
+> does too. So I told \[[!meta]] to call `urlto()` with the third
+> parameter true, which means the \[[!inline]] code here gets an
+> absolute URL in `$pagestate{$p}{meta}{enclosure}`. To compute the
+> enclosure's metadata, though, we of course need it as a local path.
+> I didn't see a less
+> [ongepotchket](http://www.jewish-languages.org/jewish-english-lexicon/words/1402)
+> way at the time. If you have a better idea, I'm happy to hear it;
+> if not, I'll add an explanatory comment. --[[schmonz]]
+
+>> I would be more comfortable with this if two two different forms of url
+>> you need were both generated by calling urlto. It'd be fine to call
+>> it more than once. --[[Joey]]
+
+>>> Heh, it was even easier than that! (Hooray for tests.) Done.
+>>> --[[schmonz]]
+
+ +<TMPL_IF HTML5><section id="inlineenclosure"><TMPL_ELSE><div id="inlineenclosure"></TMPL_IF>
+ +<TMPL_IF ENCLOSURE>
+
+Can't we avoid adding this div when there's no enclosure? --[[Joey]]
+
+> Sure, I've moved the `<TMPL_IF ENCLOSURE>` check to outside the
+> section-and-div block for `{,inline}page.tmpl`. --[[schmonz]]
+
+ +<a href="<TMPL_VAR ENCLOSURE>">Download this episode</a>
+
+"Download this episode" is pretty specific to particular use cases.
+Can this be made more generic, perhaps just "Download"? --[[Joey]]
+
+> Yep, I got a little carried away. Done. --[[schmonz]]
+
+ -<TMPL_IF AUTHOR>
+ - <title><TMPL_VAR AUTHOR ESCAPE=HTML>: <TMPL_VAR TITLE></title>
+ - <dcterms:creator><TMPL_VAR AUTHOR ESCAPE=HTML></dcterms:creator>
+
+This change removes the author name from the title of the rss feed, which
+does not seem necessary for fancy podcasts. And it is a change that
+could negatively impact eg, Planet style aggregators using ikiwiki. --[[Joey]]
+
+> While comparing how feeds render in podcatchers, I noticed that
+> RSS and Atom were inconsistent in a couple ways, of which this was
+> one. The way I noticed it: with RSS, valuable title space was being
+> spent to display the author. I figured Atom's display was the one
+> worth matching. You're right, of course, that planets using the
+> default template and somehow relying on the current author-in-the-title
+> rendering for RSS feeds (but not Atom feeds!) would be broken by
+> this change. I'm having trouble imagining exactly what would break,
+> though, since guids and timestamps are unaffected. Would it suffice
+> to provide a note in the changelog warning people to be careful
+> upgrading their planets, and to customize `rssitem.tmpl` if they
+> really prefer the old behavior (or don't want to take any chances)?
+> --[[schmonz]]
+
+>> A specific example I know of is updo.debian.net, when used with
+>> rss2email. Without the author name there, one cannot see who posted
+>> an item. It's worth noting that planet.debian.org does the same thing
+>> with its rss feed. (That's probably what I copied.) Atom feeds may
+>> not have this problem, don't know. --[[Joey]]
+
+>>> Okay, that's easy to reproduce. It looks like this _might_ be
+>>> a simple matter of getting \[[!aggregate]] to populate author in
+>>> `add_page()`. I'll see what I can figure out. --[[schmonz]]
+
+>>>> Yep, that was mostly it. If the feed entry defines an author,
+>>>> and the author is distinct from the feed name, we now show `NAME:
+>>>> AUTHOR`, else just show `NAME` (same as always). In addition,
+>>>> the W3 feed validator says `<dcterms:creator>` is invalid, so
+>>>> I replaced it with `<dc:creator>`, and all of a sudden `r2e`
+>>>> gives me better `From:` headers. With the latest on my branch,
+>>>> when I generate the same planet as updo and run `r2e` over it,
+>>>> the names I get in `From:` look like so:
+
+* `"updo: Junio C Hamano"`
+* `"updo: Greg Kroah-Hartman"`
+* `"updo: Eric Raymond: esr"` (article author != feed name, so we get both)
+* `"updo: Jannis Pohlman: Jannis Pohlmann"` (oops! I tweaked the real updo)
+
+>>>> --[[schmonz]]
+
+ +++ b/templates/rsspage.tmpl
+ + xmlns:atom="http://www.w3.org/2005/Atom"
+ +<atom:link href="<TMPL_VAR FEEDURL>" rel="self" type="application/rss+xml" />
+
+Why is it using atom namespace inside an rss feed? What are the chances
+every crummy rss reader on earth is going to understand this? I'd put it at
+about 0%; I doubt ikiwiki's own rss reader understands such a mashup.
+--[[Joey]]
+
+> The validator I used (<http://validator.w3.org/feed/>) told me to.
+> Pretty sure it doesn't make anything work better in the podcatchers
+> I tried. Hadn't considered that it might break some readers.
+> Removed. --[[schmonz]]
+
+ +<generator>ikiwiki</generator>
+
+Does this added tag provide any benefits? --[[Joey]]
+
+> Consistency with the Atom feed, and of course it trumpets ikiwiki
+> to software and/or curious humans who inspect their feeds. The tag
+> arrived only in RSS 2.0, but that's already the version we're
+> claiming to be, and it's over a decade old. Seems much less risky
+> than the atom namespace bits. --[[schmonz]]
+
+>> Sounds ok then. --[[Joey]]
sipb-www / ikiwiki.git / commitdiff
