mirror of
https://github.com/josegonzalez/python-github-backup.git
synced 2025-12-05 16:18:02 +01:00
8c12d54898
Guarded with an --incremental flag. Stores the time of the last update and only downloads issue and pull request data since this time. All other data is relatively small (likely fetched with a single request) and so is simply re-populated from scratch as before.
768 lines
26 KiB
Python
Executable File
768 lines
26 KiB
Python
Executable File
#!/usr/bin/env python
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from __future__ import print_function
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import argparse
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import base64
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import calendar
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import codecs
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import errno
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import getpass
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import json
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import logging
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import os
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import re
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import select
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import subprocess
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import sys
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import time
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import urlparse
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import urllib
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import urllib2
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from github_backup import __version__
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FNULL = open(os.devnull, 'w')
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def log_error(message):
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if type(message) == str:
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message = [message]
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for msg in message:
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sys.stderr.write("{0}\n".format(msg))
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sys.exit(1)
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def log_info(message):
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if type(message) == str:
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message = [message]
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for msg in message:
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sys.stdout.write("{0}\n".format(msg))
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def logging_subprocess(popenargs,
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logger,
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stdout_log_level=logging.DEBUG,
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stderr_log_level=logging.ERROR,
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**kwargs):
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"""
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Variant of subprocess.call that accepts a logger instead of stdout/stderr,
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and logs stdout messages via logger.debug and stderr messages via
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logger.error.
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"""
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child = subprocess.Popen(popenargs, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE, **kwargs)
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log_level = {child.stdout: stdout_log_level,
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child.stderr: stderr_log_level}
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def check_io():
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ready_to_read = select.select([child.stdout, child.stderr],
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[],
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[],
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1000)[0]
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for io in ready_to_read:
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line = io.readline()
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if not logger:
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continue
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if not (io == child.stderr and not line):
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logger.log(log_level[io], line[:-1])
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# keep checking stdout/stderr until the child exits
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while child.poll() is None:
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check_io()
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check_io() # check again to catch anything after the process exits
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rc = child.wait()
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if rc != 0:
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print(u'{} returned {}:'.format(popenargs[0], rc), file=sys.stderr)
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print('\t', u' '.join(popenargs), file=sys.stderr)
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return rc
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def mkdir_p(*args):
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for path in args:
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try:
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os.makedirs(path)
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except OSError as exc: # Python >2.5
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if exc.errno == errno.EEXIST and os.path.isdir(path):
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pass
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else:
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raise
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def mask_password(url, secret='*****'):
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parsed = urlparse.urlparse(url)
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if not parsed.password:
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return url
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elif parsed.password == 'x-oauth-basic':
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return url.replace(parsed.username, secret)
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return url.replace(parsed.password, secret)
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def parse_args():
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parser = argparse.ArgumentParser(description='Backup a github account',
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prog='Github Backup')
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parser.add_argument('user',
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metavar='USER',
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type=str,
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help='github username')
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parser.add_argument('-u',
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'--username',
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dest='username',
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help='username for basic auth')
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parser.add_argument('-p',
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'--password',
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dest='password',
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help='password for basic auth. '
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'If a username is given but not a password, the '
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'password will be prompted for.')
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parser.add_argument('-t',
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'--token',
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dest='token',
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help='personal access or OAuth token')
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parser.add_argument('-o',
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'--output-directory',
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default='.',
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dest='output_directory',
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help='directory at which to backup the repositories')
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parser.add_argument('-i',
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'--incremental',
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action='store_true',
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dest='incremental',
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help='incremental backup')
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parser.add_argument('--starred',
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action='store_true',
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dest='include_starred',
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help='include starred repositories in backup')
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parser.add_argument('--watched',
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action='store_true',
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dest='include_watched',
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help='include watched repositories in backup')
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parser.add_argument('--all',
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action='store_true',
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dest='include_everything',
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help='include everything in backup')
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parser.add_argument('--issues',
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action='store_true',
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dest='include_issues',
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help='include issues in backup')
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parser.add_argument('--issue-comments',
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action='store_true',
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dest='include_issue_comments',
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help='include issue comments in backup')
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parser.add_argument('--issue-events',
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action='store_true',
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dest='include_issue_events',
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help='include issue events in backup')
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parser.add_argument('--pulls',
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action='store_true',
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dest='include_pulls',
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help='include pull requests in backup')
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parser.add_argument('--pull-comments',
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action='store_true',
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dest='include_pull_comments',
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help='include pull request review comments in backup')
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parser.add_argument('--pull-commits',
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action='store_true',
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dest='include_pull_commits',
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help='include pull request commits in backup')
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parser.add_argument('--labels',
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action='store_true',
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dest='include_labels',
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help='include labels in backup')
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parser.add_argument('--hooks',
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action='store_true',
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dest='include_hooks',
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help='include hooks in backup (works only when authenticated)')
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parser.add_argument('--milestones',
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action='store_true',
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dest='include_milestones',
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help='include milestones in backup')
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parser.add_argument('--repositories',
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action='store_true',
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dest='include_repository',
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help='include repository clone in backup')
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parser.add_argument('--wikis',
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action='store_true',
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dest='include_wiki',
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help='include wiki clone in backup')
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parser.add_argument('--skip-existing',
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action='store_true',
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dest='skip_existing',
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help='skip project if a backup directory exists')
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parser.add_argument('-L',
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'--languages',
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dest='languages',
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help='only allow these languages',
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nargs='*')
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parser.add_argument('-N',
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'--name-regex',
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dest='name_regex',
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help='python regex to match names against')
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parser.add_argument('-H',
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'--github-host',
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dest='github_host',
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help='GitHub Enterprise hostname')
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parser.add_argument('-O',
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'--organization',
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action='store_true',
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dest='organization',
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help='whether or not this is an organization user')
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parser.add_argument('-R',
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'--repository',
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dest='repository',
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help='name of repository to limit backup to')
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parser.add_argument('-P', '--private',
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action='store_true',
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dest='private',
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help='include private repositories')
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parser.add_argument('-F', '--fork',
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action='store_true',
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dest='fork',
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help='include forked repositories')
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parser.add_argument('--prefer-ssh',
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action='store_true',
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help='Clone repositories using SSH instead of HTTPS')
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parser.add_argument('-v', '--version',
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action='version',
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version='%(prog)s ' + __version__)
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return parser.parse_args()
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def get_auth(args, encode=True):
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auth = None
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if args.token:
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auth = args.token + ':' + 'x-oauth-basic'
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elif args.username:
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if not args.password:
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args.password = getpass.getpass()
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auth = args.username + ':' + args.password
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elif args.password:
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log_error('You must specify a username for basic auth')
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if not auth:
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return None
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if encode == False:
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return auth
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return base64.b64encode(auth)
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def get_github_api_host(args):
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if args.github_host:
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host = args.github_host + '/api/v3'
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else:
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host = 'api.github.com'
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return host
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def get_github_host(args):
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if args.github_host:
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host = args.github_host
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else:
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host = 'github.com'
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return host
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def get_github_repo_url(args, repository):
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if args.prefer_ssh:
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return repository['ssh_url']
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auth = get_auth(args, False)
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if auth:
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repo_url = 'https://{0}@{1}/{2}/{3}.git'.format(
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auth,
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get_github_host(args),
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args.user,
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repository['name'])
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else:
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repo_url = repository['clone_url']
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return repo_url
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def retrieve_data(args, template, query_args=None, single_request=False):
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auth = get_auth(args)
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query_args = get_query_args(query_args)
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per_page = 100
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page = 0
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data = []
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while True:
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page = page + 1
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request = _construct_request(per_page, page, query_args, template, auth) # noqa
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r, errors = _get_response(request, auth, template)
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status_code = int(r.getcode())
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if status_code != 200:
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template = 'API request returned HTTP {0}: {1}'
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errors.append(template.format(status_code, r.reason))
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log_error(errors)
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response = json.loads(r.read())
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if len(errors) == 0:
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if type(response) == list:
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data.extend(response)
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if len(response) < per_page:
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break
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elif type(response) == dict and single_request:
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data.append(response)
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if len(errors) > 0:
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log_error(errors)
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if single_request:
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break
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return data
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def get_query_args(query_args=None):
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if not query_args:
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query_args = {}
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return query_args
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def _get_response(request, auth, template):
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retry_timeout = 3
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errors = []
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# We'll make requests in a loop so we can
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# delay and retry in the case of rate-limiting
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while True:
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should_continue = False
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try:
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r = urllib2.urlopen(request)
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except urllib2.HTTPError as exc:
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errors, should_continue = _request_http_error(exc, auth, errors) # noqa
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r = exc
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except urllib2.URLError:
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should_continue = _request_url_error(template, retry_timeout)
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if not should_continue:
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raise
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if should_continue:
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continue
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break
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return r, errors
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def _construct_request(per_page, page, query_args, template, auth):
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querystring = urllib.urlencode(dict({
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'per_page': per_page,
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'page': page
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}.items() + query_args.items()))
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request = urllib2.Request(template + '?' + querystring)
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if auth is not None:
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request.add_header('Authorization', 'Basic ' + auth)
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return request
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def _request_http_error(exc, auth, errors):
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# HTTPError behaves like a Response so we can
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# check the status code and headers to see exactly
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# what failed.
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should_continue = False
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headers = exc.headers
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limit_remaining = int(headers.get('x-ratelimit-remaining', 0))
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if exc.code == 403 and limit_remaining < 1:
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# The X-RateLimit-Reset header includes a
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# timestamp telling us when the limit will reset
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# so we can calculate how long to wait rather
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# than inefficiently polling:
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gm_now = calendar.timegm(time.gmtime())
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reset = int(headers.get('x-ratelimit-reset', 0)) or gm_now
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# We'll never sleep for less than 10 seconds:
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delta = max(10, reset - gm_now)
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limit = headers.get('x-ratelimit-limit')
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print('Exceeded rate limit of {} requests; waiting {} seconds to reset'.format(limit, delta), # noqa
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file=sys.stderr)
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ratelimit_error = 'No more requests remaining'
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if auth is None:
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ratelimit_error += '; authenticate to raise your GitHub rate limit' # noqa
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errors.append(ratelimit_error)
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time.sleep(delta)
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should_continue = True
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return errors, should_continue
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def _request_url_error(template, retry_timeout):
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# Incase of a connection timing out, we can retry a few time
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# But we won't crash and not back-up the rest now
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log_info('{} timed out'.format(template))
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retry_timeout -= 1
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if retry_timeout >= 0:
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return True
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log_error('{} timed out to much, skipping!')
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return False
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def retrieve_repositories(args):
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log_info('Retrieving repositories')
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single_request = False
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template = 'https://{0}/user/repos'.format(
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get_github_api_host(args))
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if args.organization:
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template = 'https://{0}/orgs/{1}/repos'.format(
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get_github_api_host(args),
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args.user)
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if args.repository:
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single_request = True
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template = 'https://{0}/repos/{1}/{2}'.format(
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get_github_api_host(args),
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args.user,
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args.repository)
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return retrieve_data(args, template, single_request=single_request)
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def filter_repositories(args, repositories):
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log_info('Filtering repositories')
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repositories = [r for r in repositories if r['owner']['login'] == args.user]
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name_regex = None
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if args.name_regex:
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name_regex = re.compile(args.name_regex)
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languages = None
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if args.languages:
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languages = [x.lower() for x in args.languages]
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if not args.fork:
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repositories = [r for r in repositories if not r['fork']]
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if not args.private:
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repositories = [r for r in repositories if not r['private']]
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if languages:
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repositories = [r for r in repositories if r['language'] and r['language'].lower() in languages] # noqa
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if name_regex:
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repositories = [r for r in repositories if name_regex.match(r['name'])]
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return repositories
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def backup_repositories(args, output_directory, repositories):
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log_info('Backing up repositories')
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repos_template = 'https://{0}/repos'.format(get_github_api_host(args))
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if args.incremental:
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last_update = max(repository['updated_at'] for repository in repositories)
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last_update_path = os.path.join(output_directory, 'last_update')
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if os.path.exists(last_update_path):
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args.since = open(last_update_path).read().strip()
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else:
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args.since = None
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else:
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args.since = None
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for repository in repositories:
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backup_cwd = os.path.join(output_directory, 'repositories')
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repo_cwd = os.path.join(backup_cwd, repository['name'])
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repo_dir = os.path.join(repo_cwd, 'repository')
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repo_url = get_github_repo_url(args, repository)
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if args.include_repository or args.include_everything:
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fetch_repository(repository['name'],
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repo_url,
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repo_dir,
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skip_existing=args.skip_existing)
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download_wiki = (args.include_wiki or args.include_everything)
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if repository['has_wiki'] and download_wiki:
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fetch_repository(repository['name'],
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repo_url.replace('.git', '.wiki.git'),
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os.path.join(repo_cwd, 'wiki'),
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skip_existing=args.skip_existing)
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if args.include_issues or args.include_everything:
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backup_issues(args, repo_cwd, repository, repos_template)
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if args.include_pulls or args.include_everything:
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backup_pulls(args, repo_cwd, repository, repos_template)
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if args.include_milestones or args.include_everything:
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backup_milestones(args, repo_cwd, repository, repos_template)
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if args.include_labels or args.include_everything:
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backup_labels(args, repo_cwd, repository, repos_template)
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if args.include_hooks or args.include_everything:
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backup_hooks(args, repo_cwd, repository, repos_template)
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if args.incremental:
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open(last_update_path, 'w').write(last_update)
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def backup_issues(args, repo_cwd, repository, repos_template):
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has_issues_dir = os.path.isdir('{0}/issues/.git'.format(repo_cwd))
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if args.skip_existing and has_issues_dir:
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return
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log_info('Retrieving {0} issues'.format(repository['full_name']))
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issue_cwd = os.path.join(repo_cwd, 'issues')
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mkdir_p(repo_cwd, issue_cwd)
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issues = {}
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issues_skipped = 0
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issues_skipped_message = ''
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_issue_template = '{0}/{1}/issues'.format(repos_template,
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repository['full_name'])
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issue_states = ['open', 'closed']
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for issue_state in issue_states:
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query_args = {
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'filter': 'all',
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'state': issue_state
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}
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if args.since:
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query_args['since'] = args.since
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_issues = retrieve_data(args,
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_issue_template,
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query_args=query_args)
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for issue in _issues:
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# skip pull requests which are also returned as issues
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# if retrieving pull requests is requested as well
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if 'pull_request' in issue and (args.include_pulls or args.include_everything):
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issues_skipped += 1
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continue
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issues[issue['number']] = issue
|
|
|
|
if issues_skipped:
|
|
issues_skipped_message = ' (skipped {0} pull requests)'.format(issues_skipped)
|
|
log_info('Saving {0} issues to disk{1}'.format(len(issues.keys()), issues_skipped_message))
|
|
comments_template = _issue_template + '/{0}/comments'
|
|
events_template = _issue_template + '/{0}/events'
|
|
for number, issue in issues.iteritems():
|
|
if args.include_issue_comments or args.include_everything:
|
|
template = comments_template.format(number)
|
|
issues[number]['comment_data'] = retrieve_data(args, template)
|
|
if args.include_issue_events or args.include_everything:
|
|
template = events_template.format(number)
|
|
issues[number]['event_data'] = retrieve_data(args, template)
|
|
|
|
issue_file = '{0}/{1}.json'.format(issue_cwd, number)
|
|
with codecs.open(issue_file, 'w', encoding='utf-8') as f:
|
|
json_dump(issue, f)
|
|
|
|
|
|
def backup_pulls(args, repo_cwd, repository, repos_template):
|
|
has_pulls_dir = os.path.isdir('{0}/pulls/.git'.format(repo_cwd))
|
|
if args.skip_existing and has_pulls_dir:
|
|
return
|
|
|
|
log_info('Retrieving {0} pull requests'.format(repository['full_name'])) # noqa
|
|
pulls_cwd = os.path.join(repo_cwd, 'pulls')
|
|
mkdir_p(repo_cwd, pulls_cwd)
|
|
|
|
pulls = {}
|
|
_pulls_template = '{0}/{1}/pulls'.format(repos_template,
|
|
repository['full_name'])
|
|
|
|
pull_states = ['open', 'closed']
|
|
for pull_state in pull_states:
|
|
query_args = {
|
|
'filter': 'all',
|
|
'state': pull_state,
|
|
'sort': 'updated',
|
|
'direction': 'desc',
|
|
}
|
|
|
|
# It'd be nice to be able to apply the args.since filter here...
|
|
_pulls = retrieve_data(args,
|
|
_pulls_template,
|
|
query_args=query_args)
|
|
for pull in _pulls:
|
|
if not args.since or pull['updated_at'] >= args.since:
|
|
pulls[pull['number']] = pull
|
|
|
|
log_info('Saving {0} pull requests to disk'.format(len(pulls.keys())))
|
|
comments_template = _pulls_template + '/{0}/comments'
|
|
commits_template = _pulls_template + '/{0}/commits'
|
|
for number, pull in pulls.iteritems():
|
|
if args.include_pull_comments or args.include_everything:
|
|
template = comments_template.format(number)
|
|
pulls[number]['comment_data'] = retrieve_data(args, template)
|
|
if args.include_pull_commits or args.include_everything:
|
|
template = commits_template.format(number)
|
|
pulls[number]['commit_data'] = retrieve_data(args, template)
|
|
|
|
pull_file = '{0}/{1}.json'.format(pulls_cwd, number)
|
|
with codecs.open(pull_file, 'w', encoding='utf-8') as f:
|
|
json_dump(pull, f)
|
|
|
|
|
|
def backup_milestones(args, repo_cwd, repository, repos_template):
|
|
milestone_cwd = os.path.join(repo_cwd, 'milestones')
|
|
if args.skip_existing and os.path.isdir(milestone_cwd):
|
|
return
|
|
|
|
log_info('Retrieving {0} milestones'.format(repository['full_name']))
|
|
mkdir_p(repo_cwd, milestone_cwd)
|
|
|
|
template = '{0}/{1}/milestones'.format(repos_template,
|
|
repository['full_name'])
|
|
|
|
query_args = {
|
|
'state': 'all'
|
|
}
|
|
|
|
_milestones = retrieve_data(args, template, query_args=query_args)
|
|
|
|
milestones = {}
|
|
for milestone in _milestones:
|
|
milestones[milestone['number']] = milestone
|
|
|
|
log_info('Saving {0} milestones to disk'.format(len(milestones.keys())))
|
|
for number, milestone in milestones.iteritems():
|
|
milestone_file = '{0}/{1}.json'.format(milestone_cwd, number)
|
|
with codecs.open(milestone_file, 'w', encoding='utf-8') as f:
|
|
json_dump(milestone, f)
|
|
|
|
|
|
def backup_labels(args, repo_cwd, repository, repos_template):
|
|
label_cwd = os.path.join(repo_cwd, 'labels')
|
|
output_file = '{0}/labels.json'.format(label_cwd)
|
|
template = '{0}/{1}/labels'.format(repos_template,
|
|
repository['full_name'])
|
|
_backup_data(args,
|
|
'labels',
|
|
template,
|
|
output_file,
|
|
label_cwd)
|
|
|
|
|
|
def backup_hooks(args, repo_cwd, repository, repos_template):
|
|
auth = get_auth(args)
|
|
if not auth:
|
|
log_info("Skipping hooks since no authentication provided")
|
|
return
|
|
hook_cwd = os.path.join(repo_cwd, 'hooks')
|
|
output_file = '{0}/hooks.json'.format(hook_cwd)
|
|
template = '{0}/{1}/hooks'.format(repos_template,
|
|
repository['full_name'])
|
|
try:
|
|
_backup_data(args,
|
|
'hooks',
|
|
template,
|
|
output_file,
|
|
hook_cwd)
|
|
except SystemExit:
|
|
log_info("Unable to read hooks, skipping")
|
|
|
|
|
|
def fetch_repository(name, remote_url, local_dir, skip_existing=False):
|
|
clone_exists = os.path.exists(os.path.join(local_dir, '.git'))
|
|
|
|
if clone_exists and skip_existing:
|
|
return
|
|
|
|
masked_remote_url = mask_password(remote_url)
|
|
|
|
initalized = subprocess.call('git ls-remote ' + remote_url,
|
|
stdout=FNULL,
|
|
stderr=FNULL,
|
|
shell=True)
|
|
if initalized == 128:
|
|
log_info("Skipping {0} ({1}) since it's not initalized".format(name, masked_remote_url))
|
|
return
|
|
|
|
if clone_exists:
|
|
log_info('Updating {0} in {1}'.format(name, local_dir))
|
|
git_command = ['git', 'remote', 'rm', 'origin']
|
|
logging_subprocess(git_command, None, cwd=local_dir)
|
|
git_command = ['git', 'remote', 'add', 'origin', remote_url]
|
|
logging_subprocess(git_command, None, cwd=local_dir)
|
|
git_command = ['git', 'fetch', '--all', '--tags', '--prune']
|
|
logging_subprocess(git_command, None, cwd=local_dir)
|
|
else:
|
|
log_info('Cloning {0} repository from {1} to {2}'.format(name,
|
|
masked_remote_url,
|
|
local_dir))
|
|
git_command = ['git', 'clone', remote_url, local_dir]
|
|
logging_subprocess(git_command, None)
|
|
|
|
|
|
def backup_account(args, output_directory):
|
|
account_cwd = os.path.join(output_directory, 'account')
|
|
|
|
if args.include_starred or args.include_everything:
|
|
output_file = '{0}/starred.json'.format(account_cwd)
|
|
template = "https://{0}/users/{1}/starred"
|
|
template = template.format(get_github_api_host(args), args.user)
|
|
_backup_data(args,
|
|
'starred repositories',
|
|
template,
|
|
output_file,
|
|
account_cwd)
|
|
|
|
if args.include_watched or args.include_everything:
|
|
output_file = '{0}/watched.json'.format(account_cwd)
|
|
template = "https://{0}/users/{1}/subscriptions"
|
|
template = template.format(get_github_api_host(args), args.user)
|
|
_backup_data(args,
|
|
'watched repositories',
|
|
template,
|
|
output_file,
|
|
account_cwd)
|
|
|
|
|
|
def _backup_data(args, name, template, output_file, output_directory):
|
|
skip_existing = args.skip_existing
|
|
if not skip_existing or not os.path.exists(output_file):
|
|
log_info('Retrieving {0} {1}'.format(args.user, name))
|
|
mkdir_p(output_directory)
|
|
data = retrieve_data(args, template)
|
|
|
|
log_info('Writing {0} {1} to disk'.format(len(data), name))
|
|
with codecs.open(output_file, 'w', encoding='utf-8') as f:
|
|
json_dump(data, f)
|
|
|
|
|
|
def json_dump(data, output_file):
|
|
json.dump(data,
|
|
output_file,
|
|
ensure_ascii=False,
|
|
sort_keys=True,
|
|
indent=4,
|
|
separators=(',', ': '))
|
|
|
|
|
|
def main():
|
|
args = parse_args()
|
|
|
|
output_directory = os.path.realpath(args.output_directory)
|
|
if not os.path.isdir(output_directory):
|
|
log_info('Create output directory {0}'.format(output_directory))
|
|
mkdir_p(output_directory)
|
|
|
|
log_info('Backing up user {0} to {1}'.format(args.user, output_directory))
|
|
|
|
repositories = retrieve_repositories(args)
|
|
repositories = filter_repositories(args, repositories)
|
|
backup_repositories(args, output_directory, repositories)
|
|
backup_account(args, output_directory)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|