74 lines
2.3 KiB
Python
74 lines
2.3 KiB
Python
import json
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import os
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import stat
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import sys
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from urllib.request import urlopen, urlretrieve
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from django.core.management.base import BaseCommand, CommandError
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from openslides.utils.main import get_geiss_path
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class Command(BaseCommand):
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"""
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Command to get the latest release of Geiss from GitHub.
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"""
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help = 'Get the latest Geiss release from GitHub.'
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def handle(self, *args, **options):
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geiss_name = get_geiss_name()
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download_file = get_geiss_path()
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if os.path.isfile(download_file):
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# Geiss does probably exist. Do Nothing.
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# TODO: Add an update flag, that downloads geiss anyway.
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return
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response = urlopen(get_geiss_url()).read()
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release = json.loads(response.decode())
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download_url = None
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for asset in release['assets']:
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if asset['name'] == geiss_name:
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download_url = asset['browser_download_url']
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break
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if download_url is None:
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raise CommandError("Could not find download URL in release.")
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urlretrieve(download_url, download_file)
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# Set the executable bit on the file. This will do nothing on windows
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st = os.stat(download_file)
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os.chmod(download_file, st.st_mode | stat.S_IEXEC)
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def get_geiss_url():
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"""
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Returns the URL to the API which gives the information which geiss binary
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has to be downloaded.
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Currently this is a static github-url to the repo where geiss is at the
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moment. Could be changed to use a setting or a flag in the future.
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"""
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return 'https://api.github.com/repos/ostcar/geiss/releases/latest'
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def get_geiss_name():
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"""
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Returns the name of the Geiss executable for the current operating system.
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For example geiss_windows_64.exe on a windows64 platform.
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"""
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# This will be 32 if the current python interpreter has only
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# 32 bit, even if it is run on a 64 bit operating sysem.
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bits = '64' if sys.maxsize > 2**32 else '32'
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geiss_names = {
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'linux': 'geiss_linux_{bits}',
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'win32': 'geiss_windows_{bits}.exe', # Yes, it is win32, even on a win64 system!
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'darwin': 'geiss_mac_{bits}'}
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try:
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return geiss_names[sys.platform].format(bits=bits)
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except KeyError:
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raise CommandError("Plattform {} is not supported by Geiss".format(sys.platform))
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