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[youtube-dl] / devscripts / gh-pages / update-feed.py
1 #!/usr/bin/env python3
2 from __future__ import unicode_literals
3
4 import datetime
5 import io
6 import json
7 import textwrap
8
9
10 atom_template = textwrap.dedent("""\
11     <?xml version="1.0" encoding="utf-8"?>
12     <feed xmlns="http://www.w3.org/2005/Atom">
13         <link rel="self" href="http://ytdl-org.github.io/youtube-dl/update/releases.atom" />
14         <title>youtube-dl releases</title>
15         <id>https://yt-dl.org/feed/youtube-dl-updates-feed</id>
16         <updated>@TIMESTAMP@</updated>
17         @ENTRIES@
18     </feed>""")
19
20 entry_template = textwrap.dedent("""
21     <entry>
22         <id>https://yt-dl.org/feed/youtube-dl-updates-feed/youtube-dl-@VERSION@</id>
23         <title>New version @VERSION@</title>
24         <link href="http://ytdl-org.github.io/youtube-dl" />
25         <content type="xhtml">
26             <div xmlns="http://www.w3.org/1999/xhtml">
27                 Downloads available at <a href="https://yt-dl.org/downloads/@VERSION@/">https://yt-dl.org/downloads/@VERSION@/</a>
28             </div>
29         </content>
30         <author>
31             <name>The youtube-dl maintainers</name>
32         </author>
33         <updated>@TIMESTAMP@</updated>
34     </entry>
35     """)
36
37 now = datetime.datetime.now()
38 now_iso = now.isoformat() + 'Z'
39
40 atom_template = atom_template.replace('@TIMESTAMP@', now_iso)
41
42 versions_info = json.load(open('update/versions.json'))
43 versions = list(versions_info['versions'].keys())
44 versions.sort()
45
46 entries = []
47 for v in versions:
48     fields = v.split('.')
49     year, month, day = map(int, fields[:3])
50     faked = 0
51     patchlevel = 0
52     while True:
53         try:
54             datetime.date(year, month, day)
55         except ValueError:
56             day -= 1
57             faked += 1
58             assert day > 0
59             continue
60         break
61     if len(fields) >= 4:
62         try:
63             patchlevel = int(fields[3])
64         except ValueError:
65             patchlevel = 1
66     timestamp = '%04d-%02d-%02dT00:%02d:%02dZ' % (year, month, day, faked, patchlevel)
67
68     entry = entry_template.replace('@TIMESTAMP@', timestamp)
69     entry = entry.replace('@VERSION@', v)
70     entries.append(entry)
71
72 entries_str = textwrap.indent(''.join(entries), '\t')
73 atom_template = atom_template.replace('@ENTRIES@', entries_str)
74
75 with io.open('update/releases.atom', 'w', encoding='utf-8') as atom_file:
76     atom_file.write(atom_template)