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#!/usr/bin/env python3
from __future__ import unicode_literals
import datetime
import io
import json
import textwrap
atom_template = textwrap.dedent("""\
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<link rel="self" href="http://rg3.github.io/youtube-dl/update/releases.atom" />
<title>youtube-dl releases</title>
<id>https://yt-dl.org/feed/youtube-dl-updates-feed</id>
<updated>@TIMESTAMP@</updated>
@ENTRIES@
</feed>""")
entry_template = textwrap.dedent("""
<entry>
<id>https://yt-dl.org/feed/youtube-dl-updates-feed/youtube-dl-@VERSION@</id>
<title>New version @VERSION@</title>
<link href="http://rg3.github.io/youtube-dl" />
<content type="xhtml">
<div xmlns="http://www.w3.org/1999/xhtml">
Downloads available at <a href="https://yt-dl.org/downloads/@VERSION@/">https://yt-dl.org/downloads/@VERSION@/</a>
</div>
</content>
<author>
<name>The youtube-dl maintainers</name>
</author>
<updated>@TIMESTAMP@</updated>
</entry>
""")
now = datetime.datetime.now()
now_iso = now.isoformat() + 'Z'
atom_template = atom_template.replace('@TIMESTAMP@', now_iso)
versions_info = json.load(open('update/versions.json'))
versions = list(versions_info['versions'].keys())
versions.sort()
entries = []
for v in versions:
fields = v.split('.')
year, month, day = map(int, fields[:3])
faked = 0
patchlevel = 0
while True:
try:
datetime.date(year, month, day)
except ValueError:
day -= 1
faked += 1
assert day > 0
continue
break
if len(fields) >= 4:
try:
patchlevel = int(fields[3])
except ValueError:
patchlevel = 1
timestamp = '%04d-%02d-%02dT00:%02d:%02dZ' % (year, month, day, faked, patchlevel)
entry = entry_template.replace('@TIMESTAMP@', timestamp)
entry = entry.replace('@VERSION@', v)
entries.append(entry)
entries_str = textwrap.indent(''.join(entries), '\t')
atom_template = atom_template.replace('@ENTRIES@', entries_str)
with io.open('update/releases.atom', 'w', encoding='utf-8') as atom_file:
atom_file.write(atom_template)
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