134 lines
4.2 KiB
Python
Executable File
134 lines
4.2 KiB
Python
Executable File
#!/usr/bin/python
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# Run with no arguments from any directory, with no special setup required.
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import ftplib
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import hashlib
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import os
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import re
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import shutil
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import string
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import subprocess
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import sys
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import tarfile
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import tempfile
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# Find the bionic directory, searching upward from this script.
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bionic_libc_tools_zoneinfo_dir = os.path.realpath(os.path.dirname(sys.argv[0]))
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bionic_libc_tools_dir = os.path.dirname(bionic_libc_tools_zoneinfo_dir)
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bionic_libc_dir = os.path.dirname(bionic_libc_tools_dir)
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bionic_dir = os.path.dirname(bionic_libc_dir)
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bionic_libc_zoneinfo_dir = '%s/libc/zoneinfo' % bionic_dir
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if not os.path.isdir(bionic_libc_tools_zoneinfo_dir) or not os.path.isdir(bionic_libc_zoneinfo_dir):
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print "Couldn't find bionic/libc/tools/zoneinfo!"
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sys.exit(1)
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print 'Found bionic in %s...' % bionic_dir
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regions = ['africa', 'antarctica', 'asia', 'australasia', 'backward', 'etcetera', 'europe', 'northamerica', 'southamerica']
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def current_tzdata_version():
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return open('%s/zoneinfo.version' % bionic_libc_zoneinfo_dir).readline().rstrip('\n')
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def md5_file(filename):
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md5 = hashlib.md5()
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f = open(filename, 'rb')
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while True:
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data = f.read(8192)
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if not data:
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break
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md5.update(data)
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return md5.hexdigest()
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def upgrade_to(ftp, filename):
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version = re.search('tzdata(.+)\.tar\.gz', filename).group(1)
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# Switch to a temporary directory.
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tmp_dir = tempfile.mkdtemp('-tzdata')
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os.chdir(tmp_dir)
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print 'Created temporary directory "%s"...' % tmp_dir
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print 'Downloading %s...' % filename
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ftp.retrbinary('RETR %s' % filename, open(filename, 'wb').write)
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print 'MD5: %s' % md5_file(filename)
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print 'Extracting...'
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os.mkdir('extracted')
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tar = tarfile.open(filename, 'r')
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tar.extractall('extracted')
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print 'Calling zic(1)...'
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os.mkdir('data')
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for region in regions:
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if region != 'backward':
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subprocess.check_call(['zic', '-d', 'data', 'extracted/%s' % region])
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# Collect the data ZoneCompactor needs.
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links = []
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zones = []
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for region in regions:
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for line in open('extracted/%s' % region).readlines():
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fields = string.split(line)
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if len(fields) == 0:
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continue
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elif fields[0] == 'Link':
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links.append('%s %s %s\n' % (fields[0], fields[1], fields[2]))
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zones.append(fields[2])
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elif fields[0] == 'Zone':
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zones.append(fields[1])
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zones.sort()
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# Write it into the "setup" file.
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setup = open('setup', 'w')
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for link in links:
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setup.write(link)
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for zone in zones:
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setup.write('%s\n' % zone)
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setup.close()
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print 'Calling ZoneCompactor...'
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libcore_src_dir = '%s/../libcore/luni/src/main/java/' % bionic_dir
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subprocess.check_call(['javac', '-d', '.',
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'%s/ZoneCompactor.java' % bionic_libc_tools_zoneinfo_dir,
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'%s/libcore/util/ZoneInfo.java' % libcore_src_dir,
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'%s/libcore/io/BufferIterator.java' % libcore_src_dir])
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subprocess.check_call(['java', 'ZoneCompactor', 'setup', 'data'])
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print 'Updating bionic from %s to %s...' % (current_tzdata_version(), version)
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# Move the .dat and .idx files...
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os.remove('%s/zoneinfo.dat' % bionic_libc_zoneinfo_dir)
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shutil.move('zoneinfo.dat', bionic_libc_zoneinfo_dir)
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os.remove('%s/zoneinfo.idx' % bionic_libc_zoneinfo_dir)
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shutil.move('zoneinfo.idx', bionic_libc_zoneinfo_dir)
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# Write the .version file...
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zoneinfo_version = open('%s/zoneinfo.version' % bionic_libc_zoneinfo_dir, 'wb+')
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zoneinfo_version.write('%s\n' % version)
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zoneinfo_version.close()
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# URL from "Sources for Time Zone and Daylight Saving Time Data"
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# http://www.twinsun.com/tz/tz-link.htm
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print 'Looking for new tzdata...'
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ftp = ftplib.FTP('ftp.iana.org')
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ftp.login()
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ftp.cwd('tz/releases')
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tzdata_filenames = []
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for filename in ftp.nlst():
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if filename.startswith('tzdata20'):
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tzdata_filenames.append(filename)
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tzdata_filenames.sort()
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# If you're several releases behind, we'll walk you through the upgrades one by one.
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current_version = current_tzdata_version()
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current_filename = 'tzdata%s.tar.gz' % current_version
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for filename in tzdata_filenames:
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if filename > current_filename:
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upgrade_to(ftp, filename)
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sys.exit(0)
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print 'You already have the latest tzdata (%s)!' % current_version
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sys.exit(0)
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