Add an Atom feed generator in devscripts

1 files changed, 83 insertions, 0 deletions

diff --git a/devscripts/gh-pages/update-feed.py b/devscripts/gh-pages/update-feed.py
new file mode 100755
index 000000000..7158d7a0b
--- /dev/null
+++ b/devscripts/gh-pages/update-feed.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+
+import sys
+
+import xml.etree.ElementTree as ET
+import xml.dom.minidom as minidom
+
+import datetime
+
+if len(sys.argv) <= 1:
+	print('Specify the version number as parameter')
+	sys.exit()
+version = sys.argv[1]
+
+out_file = "atom.atom"
+in_file = out_file
+
+now = datetime.datetime.now()
+now_iso = now.isoformat()
+
+atom_url = "http://www.w3.org/2005/Atom"
+
+#Some utilities functions
+def atom_tag(tag):
+	#Return a tag in the atom namespace
+	return "{{{}}}{}".format(atom_url,tag)
+	
+def atom_SubElement(parent,tag):
+	return ET.SubElement(parent,atom_tag(tag))
+	
+class YDLUpdateAtomEntry(object):
+	def __init__(self,parent,title,id ,link, downloads_link):
+		self.entry = entry = atom_SubElement(parent, "entry")
+		#We set the values:
+		atom_id = atom_SubElement(entry, "id")
+		atom_id.text = id
+		atom_title = atom_SubElement(entry, "title")
+		atom_title.text = title
+		atom_link = atom_SubElement(entry, "link")
+		atom_link.set("href", link)
+		atom_content = atom_SubElement(entry, "content")
+		atom_content.set("type", "xhtml")
+		#Here we go:
+		div = ET.SubElement(atom_content,"div")
+		div.set("xmlns", "http://www.w3.org/1999/xhtml")
+		div.text = "Downloads available at "
+		a = ET.SubElement(div, "a")
+		a.set("href", downloads_link)
+		a.text = downloads_link
+		
+		#Author info
+		atom_author = atom_SubElement(entry, "author")
+		author_name = atom_SubElement(atom_author, "name")
+		author_name.text = "The youtube-dl maintainers"
+		#If someone wants to put an email adress:
+		#author_email = atom_SubElement(atom_author, "email")
+		#author_email.text = the_email
+		
+		atom_updated = atom_SubElement(entry,"updated")
+		up = parent.find(atom_tag("updated"))
+		atom_updated.text = up.text = now_iso
+	
+	@classmethod
+	def entry(cls,parent, version):
+		update_id = "youtube-dl-{}".format(version)
+		update_title = "New version {}".format(version)
+		downloads_link = "http://youtube-dl.org/downloads/{}/".format(version)
+		#There's probably no better link
+		link = "http://rg3.github.com/youtube-dl"
+		return cls(parent, update_title, update_id, link, downloads_link)
+		
+
+atom = ET.parse(in_file)
+
+root = atom.getroot()
+
+#Otherwise when saving all tags will be prefixed with a 'ns0:'
+ET.register_namespace("atom",atom_url)
+
+update_entry = YDLUpdateAtomEntry.entry(root, version)
+
+#Find some way of pretty printing
+atom.write(out_file,encoding="utf-8",xml_declaration=True)