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executable file 67 lines (50 sloc) 1.5 KB
#!/usr/bin/env ruby
# liferea-yt-feed.rb
# Author: William Woodruff
# ------------------------
# Adds a YouTube channel to Liferea.
# Works with both old (/user/) and new (/channel/)-style YouTube channels.
# ------------------------
# This code is licensed by William Woodruff under the MIT License.
# http://opensource.org/licenses/MIT
require 'uri'
DEPS = [
"liferea",
"liferea-add-feed",
"pidof"
]
YOUTUBE_FEED_URLS = {
chan: "https://www.youtube.com/feeds/videos.xml?channel_id=%{id}",
user: "https://www.youtube.com/feeds/videos.xml?user=%{id}"
}
def which?(cmd)
ENV['PATH'].split(File::PATH_SEPARATOR).any? do |path|
File.executable?(File.join(path, cmd))
end
end
def running?(cmd)
`pidof '#{cmd}'`
$?.success?
end
def add_feed!(feed_url)
`liferea-add-feed '#{feed_url}' 1>&2 2>/dev/null`
$?.success?
end
abort "Usage: #{$PROGRAM_NAME} <channel url>" unless ARGV.length > 0
DEPS.each { |d| abort "Fatal: Missing '#{d}'." unless which? d }
abort "Fatal: liferea needs to be running." unless running? "liferea"
chan_url = URI(ARGV.shift)
if chan_url.host.nil? || /youtube/i !~ chan_url.host || chan_url.path.empty?
abort "Fatal: Not a valid channel URL."
end
type, id = chan_url.path.split('/')[1..2]
case type
when "channel"
feed_url = YOUTUBE_FEED_URLS[:chan] % { id: id }
when "user"
feed_url = YOUTUBE_FEED_URLS[:user] % { id: id }
else
abort "Fatal: Ambiguous channel URL (or not a channel URL)."
end
print "Adding #{feed_url} to Liferea..."
print add_feed!(feed_url) ? "success.\n" : "failure!\n"