election/openstack_election/utils.py
Hervé Beraud d113fc7087 Stop to use the __future__ module.
The __future__ module [1] was used in this context to ensure compatibility
between python 2 and python 3.

We previously dropped the support of python 2.7 [2] and now we only support
python 3 so we don't need to continue to use this module and the imports
listed below.

Imports commonly used and their related PEPs:
- `division` is related to PEP 238 [3]
- `print_function` is related to PEP 3105 [4]
- `unicode_literals` is related to PEP 3112 [5]
- `with_statement` is related to PEP 343 [6]
- `absolute_import` is related to PEP 328 [7]

[1] https://docs.python.org/3/library/__future__.html
[2] https://governance.openstack.org/tc/goals/selected/ussuri/drop-py27.html
[3] https://www.python.org/dev/peps/pep-0238
[4] https://www.python.org/dev/peps/pep-3105
[5] https://www.python.org/dev/peps/pep-3112
[6] https://www.python.org/dev/peps/pep-0343
[7] https://www.python.org/dev/peps/pep-0328

Change-Id: I2f9d4c9a760bd9a9dbb9cde5bcb8af24fd4b34b9
2020-07-24 13:44:46 +02:00

371 lines
11 KiB
Python

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import datetime
import json
import os
import pickle
import pytz
import requests
import sys
import time
import yaml
from urllib.error import HTTPError
from urllib.parse import quote_plus
from urllib.request import urlopen
from openstack_election import config
from openstack_election import exception
# Library constants
CANDIDATE_PATH = 'candidates'
GERRIT_BASE = 'https://review.opendev.org'
ELECTION_REPO = 'openstack/election'
GIT_URL = 'https://opendev.org/'
PROJECTS_URL = GIT_URL + 'openstack/governance/raw/%s/reference/projects.yaml'
conf = config.load_conf()
exceptions = None
# Generic functions
def requester(url, params={}, headers={}, verbose=0):
"""A requests wrapper to consistently retry HTTPS queries"""
# Try up to 3 times
retry = requests.Session()
retry.mount("https://", requests.adapters.HTTPAdapter(max_retries=3))
raw = retry.get(url=url, params=params, headers=headers)
if verbose >= 2:
print("Queried: %s" % raw.url)
return raw
def decode_json(raw):
"""Trap JSON decoding failures and provide more detailed errors"""
# Gerrit's REST API prepends a JSON-breaker to avoid XSS vulnerabilities
if raw.text.startswith(")]}'"):
trimmed = raw.text[4:]
else:
trimmed = raw.text
# Try to decode and bail with much detail if it fails
try:
decoded = json.loads(trimmed)
except Exception:
print('\nrequest returned %s error to query:\n\n %s\n'
'\nwith detail:\n\n %s\n' % (raw, raw.url, trimmed),
file=sys.stderr)
raise
return decoded
def query_gerrit(method, params={}, verbose=0):
"""Query the Gerrit REST API"""
return decode_json(requester("%s/%s" % (GERRIT_BASE, method),
params=params,
headers={'Accept': 'application/json'},
verbose=verbose))
def load_yaml(yaml_stream):
"""Wrapper to load and return YAML data"""
return yaml.safe_load(yaml_stream)
def get_from_git(project, obj, params={}, verbose=0):
"""Retrieve a file from the Gitea interface"""
url = "%s%s/raw/%s" % (GIT_URL, project, obj)
return load_yaml(requester(url, params=params,
headers={'Accept': 'application/json'},
verbose=verbose).text)
def get_series_data():
return get_from_git('openstack/releases',
'branch/master/data/series_status.yaml',
verbose=99)
def get_schedule_data(series):
return get_from_git('openstack/releases',
'branch/master/doc/source/%s/schedule.yaml' % (series))
def lookup_osf(email, group_slug=None, verbose=0):
"""A requests wrapper to querying the OSF member directory API"""
params = {
'expand': 'groups',
'filter[]': ['email==%s' % email],
'relations': 'affiliations,groups',
}
if group_slug:
params['filter[]'].append('group_slug==%s' % group_slug)
# URL pattern for querying foundation profiles by E-mail address
raw = requester(
'https://openstackid-resources.openstack.org/api/public/v1/members',
params, headers={'Accept': 'application/json'}, verbose=verbose)
result = decode_json(raw)
# Print the profile if verbosity is 1 or higher
if verbose >= 1 and result['data']:
print("Found: "
"https://openstack.org/community/members/profile/%s"
% result['data'][0]['id'])
return result
def lookup_member(email, verbose=0):
"""Lookup profiles of OSF members"""
return lookup_osf(
email=email, group_slug='foundation-members', verbose=verbose)
def load_exceptions():
global exceptions
exceptions = {}
for e in open("exceptions.txt").readlines():
if e[0] == "#" or ":" not in e:
continue
exceptions[e.split(':')[0]] = " ".join(e.split(':')[1:])[:-1].strip()
def get_event(event_name):
for e in conf['timeline']:
if e['name'] == event_name:
return e
raise ValueError("Couldn't find event_name %s" % event_name)
# Gerrit functions
def gerrit_datetime(dt):
return dt.strftime('%Y-%m-%d %H:%M:%S %z')
# TODO(tonyb): this is now basically a duplicate of query_gerrit()
def gerrit_query(url, params=None, verbose=0):
r = requester(url, params=params, verbose=verbose)
if r.status_code == 200:
data = json.loads(r.text[4:])
else:
data = []
return data
def get_email(filepath):
return os.path.basename(filepath)
def get_gerrit_account(email):
accounts = gerrit_query('%s/accounts/' % (GERRIT_BASE),
params={'q': email, 'o': ['DETAILS']})
if not accounts:
raise ValueError("Couldn't find gerrit account with '%s'" % email)
if len(accounts) != 1:
print("[I] %s has multiple account: %s" % (email, accounts))
return accounts[0]
def get_irc(member, filepath=None):
irc = ''
member_data = member.get('data', [])
if member_data:
irc = member_data[0].get('irc', '')
# The API can return None for nonexistent nicks
if irc is None:
irc = ''
return irc
def get_fullname(member, filepath=None):
# Check if filepath is an exception
if filepath and exceptions is None:
load_exceptions()
if filepath and filepath in exceptions:
return exceptions[filepath]
full_name = u''
member_data = member.get('data', [])
if member_data:
first_name = member_data[0].get('first_name', '')
last_name = member_data[0].get('last_name', '')
if first_name or last_name:
full_name = first_name + ' ' + last_name
return full_name
def get_reviews(query, verbose=0):
opts = ['CURRENT_REVISION', 'CURRENT_FILES', 'DETAILED_ACCOUNTS']
opts_str = '&o=%s' % ('&o='.join(opts))
url = ('%s/changes/?q=%s%s' %
(GERRIT_BASE, quote_plus(query, safe='/:=><^.*'), opts_str))
return gerrit_query(url, verbose=verbose)
def candidate_files(review):
return list(filter(lambda x: x.startswith(CANDIDATE_PATH),
list(review['revisions'].values())[0]['files'].keys()))
# Governance functions
def check_atc_date(atc):
if 'expires-in' not in atc:
return False
expires_in = datetime.datetime.strptime(atc['expires-in'], '%B %Y')
expires_in = expires_in.replace(tzinfo=pytz.utc)
return conf['timeframe']['end'] < expires_in
def _get_projects(tag=None):
if tag:
url = PROJECTS_URL % '/'.join(('tag', tag))
cache_file = '.projects.%s.pkl' % tag
else:
url = PROJECTS_URL % 'branch/master'
cache_file = '.projects.pkl'
# Refresh the cache if it's not there or if it's older than a week
if (not os.path.isfile(cache_file) or
os.stat(cache_file).st_size < 100 or
os.stat(cache_file).st_mtime + (7*24*3600) < time.time()):
print("[+] Updating %s" % (cache_file))
data = load_yaml(urlopen(url).read())
pickle.dump(data, open(cache_file, "wb"), protocol=2)
return pickle.load(open(cache_file, "rb"))
def get_projects(tag=None, fallback_to_master=False):
try:
projects = _get_projects(tag)
except HTTPError as exc:
if exc.code == 404 and tag and fallback_to_master:
projects = _get_projects()
else:
raise
return projects
# Election functions
def name2dir(name):
"""Convert project name to directory name: only [a-zA-Z_] in camelcase"""
name = name.replace(' ', '_').replace('-', '_')
return "_".join(map(lambda x: x[0].upper()+x[1:], name.split('_')))
def dir2name(name, projects):
"""Convert directory name to original project name"""
name = name.replace('_', '').lower()
for project_name in projects:
pname = project_name.lower().replace(' ', '').replace('-', '').lower()
if name == pname:
return project_name
raise ValueError(('%s does not match any project' % (name)))
def is_tc_election():
return conf.get('election_type', '').lower() == 'tc'
def election_is_running():
# Assume that the start of the first item in and the end of the last
# defines is a reasonable approximation to "election is running"
timeline = conf.get('timeline')
if timeline:
start = timeline[0]['start']
end = timeline[-1]['end']
now = datetime.datetime.utcnow().replace(tzinfo=pytz.utc)
return start <= now <= end
return False
def find_all_projects(election=conf['release']):
election_path = os.path.join(CANDIDATE_PATH, election)
if os.path.exists(election_path):
project_list = os.listdir(election_path)
else:
project_list = []
return project_list
def find_candidate_files(election=conf['release']):
project_list = find_all_projects(election)
election_type = conf.get('election_type', '').lower()
if election_type == 'tc':
project_list = list(filter(
lambda p: p in ['TC'],
project_list
))
elif election_type == 'ptl':
project_list = list(filter(
lambda p: p not in ['TC'],
project_list
))
election_path = os.path.join(CANDIDATE_PATH, election)
candidate_files = []
for project in project_list:
project_prefix = os.path.join(election_path, project)
candidate_files += list(filter(
lambda x: '@' in x,
[os.path.join(project_prefix, i)
for i in os.listdir(project_prefix)],
))
candidate_files.sort()
return candidate_files
def build_candidates_list(election=conf['release']):
candidate_files = find_candidate_files(election=election)
candidates_lists = {}
projects = set()
for filepath in candidate_files:
project = os.path.basename(os.path.dirname(filepath))
if project not in candidates_lists:
candidates_lists[project] = []
projects.add(project)
email = get_email(filepath)
member = lookup_member(email)
if member.get('data', []) == []:
raise exception.MemberNotFoundException(email=email)
candidates_lists[project].append({
'url': ('%s%s/raw/branch/master/%s' %
(GIT_URL, ELECTION_REPO,
quote_plus(filepath, safe='/'))),
'email': email,
'ircname': get_irc(member),
'fullname': get_fullname(member, filepath=filepath)
})
leaderless = set(find_all_projects(election)) - projects
return {'election': election,
'projects': list(projects),
'leaderless': list(leaderless),
'candidates': candidates_lists}