#!/usr/bin/env python
"""
Usage:
AppcastReplaceItem <path-to-appcast> <old-version> <new-version> <path-to-dmg>
Example: AppcastReplaceItem appcast-release.xml 1.1.4 1.2 Release/build/Adium_1.2.dmg
"""
# Configurable variables.
app_name = 'Adium'
changelog_fmt = 'http://www.adiumx.com/changelogs/%(version)s.html'
enclosure_fmt = ' <enclosure sparkle:md5Sum="%(md5)s" sparkle:version="%(version)s" url="%(url)s" length="%(file_size)s" type="application/octet-stream"/>\n'
# End of configurable variables.
import xml.etree.cElementTree as ElementTree
import sys
import os
import time
import subprocess
from stat import *
args = dict(zip(('appcast_path', 'old_version', 'version', 'dmg_pathname'), sys.argv[1:]))
try:
appcast_path = args['appcast_path']
old_version = args['old_version']
version = args['version']
dmg_pathname = args['dmg_pathname']
except KeyError:
sys.exit(__doc__.strip())
else:
args['app_name'] = app_name
# Get the length and modification time of the dmg file.
sb = os.stat(dmg_pathname)
file_size = args['file_size'] = sb[ST_SIZE]
dmg_mod_time = time.localtime(sb[ST_MTIME])
# Suffix for the day of the month.
th = (['st', 'nd', 'rd'] + ['th'] * 7) * 4
# GMT offset in hours.
gmt_offset = '%+i' % (-int(time.timezone / 3600),)
# Format, which we must fill in with the above items first.
time_fmt = '%A, %B %dth, %Y %H:%M:%S GMT+0'.replace('th', th[dmg_mod_time.tm_mday - 1]).replace('+0', gmt_offset)
dmg_mod_date = args['dmg_mod_date'] = time.strftime(time_fmt, dmg_mod_time)
openssl_md5 = subprocess.Popen(['openssl', 'md5', dmg_pathname], stdout=subprocess.PIPE)
# Skip the prefix
openssl_md5.stdout.read(len('MD5(') + len(dmg_pathname) + len(')= '))
md5 = args['md5'] = openssl_md5.stdout.read().strip()
exit_status = openssl_md5.wait()
if exit_status != 0: sys.exit('openssl md5 exited with status ' + str(exit_status))
# An MD5 hash is 16 bytes, which is 32 digits hexadecimal.
assert len(md5) == 32, 'MD5 sum is %u bytes' % (len(md5),)
dmg_filename = os.path.split(dmg_pathname)[1]
url = args['url'] = 'http://adiumx.cachefly.net/' + dmg_filename
# Because XML parsing with the standard library is a PITA, we're going to do it the hackish way.
xmlfile = file(appcast_path)
lines = []
is_in_item = False
is_correct_item = False
found_correct_item = False
for line in xmlfile:
if not is_in_item:
if '<item>' in line:
is_in_item = True
else:
if '</item>' in line:
is_in_item = False
is_correct_item = False
elif '<title>' in line:
if '>%(app_name)s %(old_version)s<' % args in line:
line = line.replace(old_version, version)
is_correct_item = found_correct_item = True
elif is_correct_item:
if'<pubDate>' in line:
line = ' <pubDate>%(dmg_mod_date)s</pubDate>\n' % args
elif '<sparkle:releaseNotesLink>' in line:
line = ' <sparkle:releaseNotesLink>%s</sparkle:releaseNotesLink>\n' % (changelog_fmt % args,)
elif '<enclosure' in line:
line = enclosure_fmt % args
lines.append(line)
if not found_correct_item:
sys.exit('No item found for version %(old_version)s' % args)
xmlfile = file(appcast_path, 'w')
xmlfile.writelines(lines)
