From b077c8f3db10ad2378750ef0b29efed1aa96b87f Mon Sep 17 00:00:00 2001 From: Amitai Schlair Date: Tue, 21 May 2013 15:26:13 -0400 Subject: [PATCH] Verified smooth migrations in two podcatchers. --- doc/todo/fancypodcast.mdwn | 116 +++++++++++++++++++++++++++++++++---- 1 file changed, 104 insertions(+), 12 deletions(-) diff --git a/doc/todo/fancypodcast.mdwn b/doc/todo/fancypodcast.mdwn index ea3bebd94..ccf08eeaf 100644 --- a/doc/todo/fancypodcast.mdwn +++ b/doc/todo/fancypodcast.mdwn @@ -71,23 +71,113 @@ Episode enclosure |(./) |(./) |(./) |(./) * 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). ### Must-have (for [[schmonz]], anyway) -* Think carefully about... - * UTF-8. - * Whether [[tips/howto avoid flooding aggregators]] suffices for... - * Converting a simple podcast to a fancy one. - 7. Set up a non-production copy of one of my podcasts. - * Manually test that feeds match production. - * Subscribe to the copy in `r2e`, iTunes, Downcast. - 7. Try migrating the copy from simple to fancy. - * Document the steps I take. - * Make the feed readers update. - * Document what happens for each of them. - * Migrating a fancy podcast from elsewhere into ikiwiki. +* Think carefully about UTF-8. * Verify that _all_ the tests pass (not just my new ones). +## 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. + ----- ## Future improvements @@ -122,6 +212,8 @@ Episode enclosure |(./) |(./) |(./) |(./) ### Other ideas +* 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.