2 # Generate two rss feeds for a directory with .changes file
4 # License: GPL v2 or later
5 # Author: Filippo Giunchedi <filippo@debian.org>
12 import encodings.ascii
13 from email.Parser import HeaderParser
14 from optparse import OptionParser
18 inrss_filename = "changes_in.rss"
19 outrss_filename = "changes_out.rss"
20 db_filename = "status.db"
22 parser = OptionParser()
23 parser.set_defaults(queuedir="queue", outdir="out", datadir="status", max_entries="30")
25 parser.add_option("-q", "--queuedir", dest="queuedir",
26 help="The queue dir (%default)")
27 parser.add_option("-o", "--outdir", dest="outdir",
28 help="The output directory (%default)")
29 parser.add_option("-d", "--datadir", dest="datadir",
30 help="The data dir (%default)")
31 parser.add_option("-m", "--max-entries", dest="max_entries", type="int",
32 help="Max number of entries to keep (%default)")
36 self.feed_in = PyRSS2Gen.RSS2(
37 title = "Packages entering NEW",
38 link = "http://ftp-master.debian.org/new.html",
39 description = "Debian packages entering the NEW queue" )
41 self.feed_out = PyRSS2Gen.RSS2(
42 title = "Packages leaving NEW",
43 link = "http://ftp-master.debian.org/new.html",
44 description = "Debian packages leaving the NEW queue" )
49 """ Return an ASCII encoded copy of the input UTF-8 string """
51 res = unicode(src, 'utf-8').encode('ascii', 'replace')
52 except UnicodeDecodeError:
56 def purge_old_items(feed, max):
57 """ Purge RSSItem from feed, no more than max. """
58 if feed.items is None or len(feed.items) == 0:
61 feed.items = feed.items[:max]
64 def parse_changes(fname):
65 """ Parse a .changes file named fname.
67 Return {fname: parsed} """
72 m = p.parse(open(fname), True)
74 sys.stderr.write("Unable to parse %s\n" % fname)
76 wanted_fields = set(['Source', 'Version', 'Architecture', 'Distribution',
77 'Date', 'Maintainer', 'Description', 'Changes'])
79 if not set(m.keys()).issuperset(wanted_fields):
82 return {os.path.basename(fname): m}
84 def parse_queuedir(dir):
85 """ Parse dir for .changes files.
87 Return a dictionary {filename: parsed_file}"""
89 if not os.path.exists(dir):
93 for fname in os.listdir(dir):
94 if not fname.endswith(".changes"):
97 parsed = parse_changes(os.path.join(dir, fname))
103 def add_rss_item(status, msg, direction):
104 if direction == "in":
105 feed = status.feed_in
106 title = "%s %s entered NEW" % (msg['Source'], msg['Version'])
107 elif direction == "out":
108 feed = status.feed_out
109 title = "%s %s left NEW" % (msg['Source'], msg['Version'])
113 description = "<pre>Description: %s\nChanges: %s\n</pre>" % \
114 (utf2ascii(msg['Description']), utf2ascii(msg['Changes']))
119 pubDate = msg['Date'],
121 description = description,
122 author = utf2ascii(msg['Maintainer']),
123 link = "http://ftp-master.debian.org/new/%s_%s.html" % \
124 (msg['Source'], msg['Version'])
128 def update_feeds(curqueue, status):
129 # inrss -> append all items in curqueue not in status.queue
130 # outrss -> append all items in status.queue not in curqueue
132 for (name, parsed) in curqueue.items():
133 if not status.queue.has_key(name):
135 add_rss_item(status, parsed, "in")
137 for (name, parsed) in status.queue.items():
138 if not curqueue.has_key(name):
140 add_rss_item(status, parsed, "out")
144 if __name__ == "__main__":
146 (settings, args) = parser.parse_args()
148 if not os.path.exists(settings.outdir):
149 sys.stderr.write("Outdir '%s' does not exists\n" % settings.outdir)
153 if not os.path.exists(settings.datadir):
154 sys.stderr.write("Datadir '%s' does not exists\n" % settings.datadir)
158 status_db = os.path.join(settings.datadir, db_filename)
161 status = cPickle.load(open(status_db))
165 current_queue = parse_queuedir(settings.queuedir)
166 if not current_queue:
167 sys.stderr.write("Unable to scan queuedir '%s'\n" % settings.queuedir)
171 update_feeds(current_queue, status)
173 purge_old_items(status.feed_in, settings.max_entries)
174 purge_old_items(status.feed_out, settings.max_entries)
176 feed_in_file = os.path.join(settings.outdir, inrss_filename)
177 feed_out_file = os.path.join(settings.outdir, outrss_filename)
180 status.feed_in.write_xml(file(feed_in_file, "w+"), "utf-8")
181 status.feed_out.write_xml(file(feed_out_file, "w+"), "utf-8")
183 sys.stderr.write("Unable to write feeds: %s\n", why)
186 status.queue = current_queue
189 cPickle.dump(status, open(status_db, "w+"))
191 sys.stderr.write("Unable to save status: %s\n", why)