adm-ntuh-net/ntuh/dojango/management/commands/dojoload.py
2024-12-12 10:19:16 +08:00

105 lines
3.9 KiB
Python
Executable file

import os
import sys
import urllib
import zipfile
from optparse import make_option
from dojango.conf import settings
try:
from django.core.management.base import BaseCommand, CommandError
except ImportError:
# Fake BaseCommand out so imports on django 0.96 don't fail.
BaseCommand = object
class CommandError(Exception):
pass
class Command(BaseCommand):
'''This command helps with downloading a dojo source release. To download
the currently defined 'settings.DOJANGO_DOJO_VERSION' just type:
./manage.py dojoload
in your django project path. For downloading a specific version a version
string can be appended.
./manage.py dojoload --version 1.2.3
'''
option_list = BaseCommand.option_list + (
make_option('--dojo_version', dest='dojo_version',
help='Download a defined version (e.g. 1.2.3) instead of the default (%s).' % settings.DOJO_VERSION),
)
help = "Downloads a dojo source release."
dl_url = "http://download.dojotoolkit.org/release-%(version)s/dojo-release-%(version)s-src.zip"
dl_to_path = settings.BASE_DOJO_ROOT + "/dojo-release-%(version)s-src.zip"
move_from_dir = settings.BASE_DOJO_ROOT + "/dojo-release-%(version)s-src"
move_to_dir = settings.BASE_DOJO_ROOT + "/%(version)s"
extract_to_dir = settings.BASE_DOJO_ROOT
total_kb = 0
downloaded_kb = 0
def handle(self, *args, **options):
version = settings.DOJO_VERSION
passed_version = options.get('dojo_version', None)
if passed_version:
version = passed_version
dl_url = self.dl_url % {'version': version}
dl_to_path = self.dl_to_path % {'version': version}
move_from_dir = self.move_from_dir % {'version': version}
move_to_dir = self.move_to_dir % {'version': version}
if os.path.exists(move_to_dir):
raise CommandError("You've already downloaded version %(version)s to %(move_to_dir)s" % {
'version':version,
'move_to_dir':move_to_dir,
})
else:
print "Downloading %s to %s" % (dl_url, dl_to_path)
self.download(dl_url, dl_to_path)
if self.total_kb == -1: # stupid bug in urllib (there is no IOError thrown, when a 404 occurs
os.remove(dl_to_path)
print ""
raise CommandError("There is no source release at %(url)s" % {
'url':dl_url,
'dir':dl_to_path,
})
print "\nExtracting file %s to %s" % (dl_to_path, move_to_dir)
self.unzip_file_into_dir(dl_to_path, self.extract_to_dir)
os.rename(move_from_dir, move_to_dir)
print "Removing previous downloaded file %s" % dl_to_path
os.remove(dl_to_path)
def download(self, dl_url, to_dir):
try:
urllib.urlretrieve(dl_url, to_dir, self.dl_reporthook)
except IOError:
raise CommandError("Downloading from %(url)s to directory %(dir)s failed." % {
'url':dl_url,
'dir':to_dir,
})
def dl_reporthook(self, block_count, block_size, total_size):
self.total_kb = total_size / 1024
self.downloaded_kb = (block_count * block_size) / 1024
sys.stdout.write('%s%d KB of %d KB downloaded' % (
40*"\b", # replacing the current line
self.downloaded_kb,
self.total_kb
)
)
sys.stdout.flush()
def unzip_file_into_dir(self, file, dir):
try:
os.mkdir(dir)
except:
pass
zfobj = zipfile.ZipFile(file)
for name in zfobj.namelist():
if name.endswith('/'):
os.mkdir(os.path.join(dir, name))
else:
outfile = open(os.path.join(dir, name), 'wb')
outfile.write(zfobj.read(name))
outfile.close()