X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/a1ec9f8e2772c2cb74f15d835f89d40d1aee2baa..b4a41c0595c83a33760ed6d19cac651cbd19c956:/doc/todo/fancypodcast.mdwn diff --git a/doc/todo/fancypodcast.mdwn b/doc/todo/fancypodcast.mdwn index d1697cbaa..bff509325 100644 --- a/doc/todo/fancypodcast.mdwn +++ b/doc/todo/fancypodcast.mdwn @@ -5,52 +5,130 @@ also have lots more metadata. [[!toc]] -## 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 +## Status [[!template id=gitbranch branch=schmonz/fancypodcast author="[[schmonz]]"]] [[!tag patch]] -### 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`. -* Subscribe to a fancy feed in some common podcatchers and verify - display details against a reference podcast. -* Verify that the feeds validate. - -### Must-have (for [[schmonz]], anyway) - -* Think carefully about... - * UTF-8. - * Other templates with `CONTENT` and whether they want to learn - about `ENCLOSURE` (maybe `aggregatepost.tmpl`?). - * Whether [[tips/howto avoid flooding aggregators]] suffices for - migrating a fancy podcast into ikiwiki. -* Verify that _all_ the tests pass (not just my new ones). +Nothing new on the branch since 2013/07/21 merge to `master`. + +## Features + +[[!table data=""" +Feature |iTunes RSS|iTunes Atom|Downcast RSS|Downcast Atom +Feed image | | | | +Feed title |(./) |(./) |(./) |(./) +Feed publisher | | | | +Feed "category" | | | | +Feed date |(./) |(./) |(./) |(./) +Feed description |(./) |(./) |(./) | +Episode image | | | | +Episode title |(./) |(./) |(./) |(./) +Episode date |(./) |(./) |(./) |(./) +Episode duration | | | | +Episode author | | | | +Episode description|(./) |(./) |(./) | +Episode enclosure |(./) |(./) |(./) |(./) +"""]] + +## Migration + +### Upgrading within ikiwiki: from simple to fancy + +#### My test podcast + +For this test, I chose a podcast that tries to work around ikiwiki's +current limitations by issuing two separate `inline`s: + +* One with `feedonly=yes` that includes `.mdwn`, `.pdf`, and `.mp3` +* One with `feeds=no` that includes only `.mdwn` (and makes a trail) + +This has the following effects: + +* Browser: sees just the articles (each of which has a manually + created link to its corresponding media file) +* Feedreader: sees all the articles and media in one flat stream +* Podcatcher: sees just the media (sans articles) + +I want instead to write one `inline` with these effects: + +* Browser: sees just the articles (each of which automatically links + to its enclosure) +* Feedreader: sees just the articles (each of which specifies its + enclosure) +* Podcatcher: sees just the enclosures (each of which has an enclosing + article, rendered as the media's "description") + +#### Upgrade steps + +7. Set up a non-production copy of the podcast. + 7. Visually diff RSS and Atom feeds against production. + 7. Subscribe to the copy (both feeds) in `r2e`, iTunes, Downcast. +7. Apply fancypodcast patch to the installed ikiwiki: + 7. `cd ~/Documents/trees/ikiwiki && git checkout fancypodcast` + 7. `git diff --no-prefix master > ~/Documents/trees/localpatches/www/ikiwiki/fancypodcast.diff` + 7. `cd ~/Documents/trees/pkgsrc-current/www/ikiwiki && make deinstall && make install clean` +7. Verify that simple podcasts are unaffected: + 7. Rerun `ikiwiki --setup`. + 7. `diff -uB simple-before.rss simple-after.rss` + * A few new elements and attributes, as expected. + 7. `diff -uB simple-before.atom simple-after.atom` + * No change. +7. Remove the feed-only `inline` and enable feeds on the remaining one. +7. Convert articles' manual download links to `\[[!meta enclosure=""]]`. +7. I want existing and future podcatchers to get my new fancy + episodes, and I know my podcast isn't in any planets, so I'm + going to skip [[tips/howto avoid flooding aggregators]]. +7. Rerun `ikiwiki --setup`. +7. Verify browser shows the same stuff. +7. `diff -uB simple-after.rss fancy-after.rss # and atom` + * MP3s and PDFs are no longer naked enclosures, but belong to + articles as they should. + * Articles have updated modification times, as they should. +7. `r2e run` (both RSS and Atom) + * Nothing new with the default `trust-guid = True` (otherwise + would expect updated articles). +7. iTunes "Update Podcast" (both RSS and Atom) + * Added one episode per article, with article text as the episode + description. + * Kept old naked-enclosure episodes around. +7. Downcast refresh (RSS): + * Added one episode per article, with article text as the episode + description. + * Kept old naked-enclosure episodes around. +7. Downcast refresh (Atom): + * Added one episode per article, with no episode description + (expected, see feature table). + * Kept old naked-enclosure episodes around. + +Different tradeoffs are possible. These seem okay to me. + +### Importing into ikiwiki: fancy (from another CMS) + +#### My test podcast + +For this test, I chose a podcast currently being published with +Textpattern and tru_podcast, because I'd strongly prefer to publish +it with ikiwiki instead. + +#### Upgrade steps + +7. Set up a non-production copy of the podcast. + 7. Visually diff RSS and Atom feeds against production. + 7. Subscribe to the copy (both feeds) in `r2e`, iTunes, Downcast. +7. With a fancypodcast-enabled ikiwiki installed: + 7. Copy content from Textpattern to ikiwiki: + 7. Match article paths to preserve `/YYYY/MM/DD/post-title` permalinks. + 7. Match enclosure paths (or redirect) to preserve Textpattern's URLs. + 7. Match titles, post dates, and guids with `\[[!meta]]`. + 7. Match feed paths with permanent redirects from `/atom/` to + `/index.atom` (and same for RSS). + 7. `\[[!inline]]` the articles. + 7. Rerun `ikiwiki --setup`. +7. Stop Textpattern, start ikiwiki. +7. Verify that podcatchers see the feeds and don't redownload anything. +7. Naively add two new blog posts, one with an enclosure. +7. Verify that podcatchers download the new enclosures. ----- @@ -73,34 +151,33 @@ also have lots more metadata. * `itunes:keywords` * Notable tags for entries: * `itunes:duration` - * use `Audio::TagLib` if present and applicable - * fall back to `ffprobe` + * [[!cpan Audio::TagLib]] might be fastest, if present and applicable + * [ffprobe](http://ffmpeg.org/ffprobe.html) is reasonably fast + * [mediainfo](http://mediainfo.sourceforge.net/) is way slower + * Cache computed durations as pagestate + +### Fancy podcast aggregating + +* Write tests comparing a fancy podcast (HTML and feeds) against + the same podcast aggregated and republished, then make them pass + via changes to `aggregatepost.impl` and [[plugins/aggregate]]. ### Other ideas -* Let the enclosure's MIME type be specified, in case someone ever - needs to disagree with `File::MimeInfo`. -* Extend [[plugins/inline]] to configurably generate additional - subscription links (such as iTunes) alongside the RSS/Atom ones. -* Verify that [[plugins/more]] plays well with fancy podcasts. -* Allow enclosures that are outside the wiki. +* Don't render template text (e.g., "Use this template to insert a + note into a page") in feeds. +* Optionally specify the enclosure's: + * MIME type, in case `File::MimeInfo` guesses wrong. + * Duration, in case `ffprobe` guesses wrong. +* Optionally specify enclosures outside the wiki: + * Some people don't want to store big unchanging files in the VCS. + * Other people like [podcasting found media](http://huffduffer.com/about). + * We'd have to download the file just to compute some metadata + about it, and then somehow not frequently re-download it. +* Configurably generate additional subscription links (such as + iTunes) alongside the RSS/Atom ones in [[plugins/inline]]. * Support Apple's "enhanced podcasts" (if they're still relevant). -### Status +---- -[[!table data=""" -Feature |iTunes RSS|iTunes Atom|Downcast RSS|Downcast Atom -Feed image | | | | -Feed title |(./) |(./) |(./) |(./) -Feed publisher | | | | -Feed "category" | | | | -Feed date |(./) |(./) |(./) |(./) -Feed description | | | | -Episode image | | | | -Episode title |(./) |(./) |(./) |(./) -Episode date |(./) |(./) |(./) |(./) -Episode duration | | | | -Episode author |(./) |(./) |(./) |(./) -Episode description|(./) |(./) |(./) | -Episode enclosure |(./) |(./) |(./) |(./) -"""]] +[[merged|done]] --[[Joey]]