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Add enclosure tag to facilitate Podcasting with Cryogen

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Add an enclosure tag to a post's metadata to let a podcast client
to deliver your audio content.  It should look like this:

:enclosure [{:url "<full-url>"}]

Without the brackets, you end up with NullPointerExceptions, so
make sure you have that.

The URL should be the full location of where the audio file is
hosted (not relative), so for example:

:enclosure [{:url "http://www.example.com/01_episode_IV.mp3"}]

I created a bunch of markdown files with just the enclosure and
info about the audiobook with the following bash snippet:

find -L books -type f -iname "*mp3" | sort | while read mp3; do name=$(basename $mp3 .mp3); book=$(basename "$(dirname $mp3)"); echo "{:title \"$name\"\n:layout :post\n:tags [\"audiobooks\" \"$book\"]\n:enclosure [{:url \"http://clashthebunny.mason.ch/blog/$mp3\"}]}\n $book - $name\n==================" > md/posts/"$(date "+%Y-$name").md"; done

Each book was in it's own subdirectory of books:
books/Dracula/1-01-Chapter1_part01.mp3
books/Dracula/1-02-Chapter1_part02.mp3
books/Dracula/2-01-Chapter2_part01.mp3

Note that the above script requires the prefix of the episode to
be "date-like".  It should be fairly easy to work out a way to get
your podcast up and running.

Add the book names to your rss-filters array, e.g.:
["Dracula" "Pride & Prejudice"]

Most podcasting clients support authentication, so just password
protect those directories and you should be good to go, even
if you are hosting copyrighted content.
This commit is contained in:
Randall Mason 2015-09-03 11:27:55 -05:00
parent e1aa1d737f
commit 03cfabcbb9
2 changed files with 5 additions and 4 deletions
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2
src/cryogen_core/compiler.clj
View file

@ -143,7 +143,7 @@
"Adds the uri and title of a post to the list of posts under each of its tags"
[tags post]
(reduce (fn [tags tag]
(update-in tags [tag] (fnil conj []) (select-keys post [:uri :title :content :date])))
(update-in tags [tag] (fnil conj []) (select-keys post [:uri :title :content :date :enclosure])))
tags (:tags post)))
(defn group-by-tags

7
src/cryogen_core/rss.clj
View file

@ -1,18 +1,19 @@
(ns cryogen-core.rss
(:require [clj-rss.core :as rss]
[clojure.xml :refer [emit]]
[text-decoration.core :refer :all])
(:import java.util.Date))
(defn posts-to-items [site-url posts]
(map
(fn [{:keys [uri title content date]}]
(let [link (str (if (.endsWith site-url "/") (apply str (butlast site-url)) site-url) uri)]
(fn [{:keys [uri title content date enclosure]}]
(let [link (str (if (.endsWith site-url "/") (apply str (butlast site-url)) site-url) uri)
enclosure (if (nil? enclosure) "" enclosure)]
{:guid link
:link link
:title title
:description content
:enclosure enclosure
:pubDate date}))
posts))