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#!/usr/bin/env python3
# coding: utf-8
# Copyright: (c) 2019, Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import argparse
import asyncio
import datetime
import hashlib
import sys
from collections import UserString
from distutils.version import LooseVersion
import aiohttp
from jinja2 import Environment, DictLoader
# pylint: disable=
VERSION_FRAGMENT = """
{%- if versions | length > 1 %}
{% for version in versions %}
{% if loop.last %}and {{ version }}{% else %}
{% if versions | length == 2 %}{{ version }} {% else %}{{ version }}, {% endif -%}
{% endif -%}
{% endfor -%}
{%- else %}{{ versions[0] }}{% endif -%}
"""
LONG_TEMPLATE = """
{% set plural = True if versions | length == 1 else False %}
{% set latest_ver = (versions | sort(attribute='ver_obj'))[-1] %}
To: ansible-devel@googlegroups.com, ansible-project@googlegroups.com, ansible-announce@googlegroups.com
Subject: New Ansible release{% if plural %}s{% endif %} {{ version_str }}
{% filter wordwrap %}
Hi all- we're happy to announce that the general release of Ansible {{ version_str }}{% if plural %} are{%- else %} is{%- endif %} now available!
{% endfilter %}
How do you get it?
------------------
{% for version in versions %}
$ pip install ansible=={{ version }} --user
{% if not loop.last %}
or
{% endif %}
{% endfor %}
The tar.gz of the release{% if plural %}s{% endif %} can be found here:
{% for version in versions %}
* {{ version }}
https://releases.ansible.com/ansible/ansible-{{ version }}.tar.gz
SHA256: {{ hashes[version] }}
{% endfor %}
What's new in {{ version_str }}
{{ '-' * (14 + version_str | length) }}
{% filter wordwrap %}
{% if plural %}This release is a{% else %}These releases are{% endif %} maintenance release{% if plural %}s{% endif %} containing numerous bugfixes. The full {% if versions | length <= 1 %} changelog is{% else %} changelogs are{% endif %} at:
{% endfilter %}
{% for version in versions %}
* {{ version }}
https://github.com/ansible/ansible/blob/stable-{{ version.split('.')[:2] | join('.') }}/changelogs/CHANGELOG-v{{ version.split('.')[:2] | join('.') }}.rst
{% endfor %}
What's the schedule for future maintenance releases?
----------------------------------------------------
{% filter wordwrap %}
Future maintenance releases will occur approximately every 3 weeks. So expect the next one around {{ next_release.strftime('%Y-%m-%d') }}.
{% endfilter %}
Porting Help
------------
{% filter wordwrap %}
We've published a porting guide at
https://docs.ansible.com/ansible/devel/porting_guides/porting_guide_{{ latest_ver.split('.')[:2] | join('.') }}.html to help migrate your content to {{ latest_ver.split('.')[:2] | join('.') }}.
{% endfilter %}
{% filter wordwrap %} |
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{% endfilter %}
Thanks!
-{{ name }}
""" # noqa for E501 (line length).
# jinja2 is horrid about getting rid of extra newlines so we have to have a single per paragraph for
# proper wrapping to occur
SHORT_TEMPLATE = """
@ansible
{{ version_str }}
{% if versions | length > 1 %}
have
{% else %}
has
{% endif %}
been released! Get
{% if versions | length > 1 %}
them
{% else %}
it
{% endif %}
on PyPI: pip install ansible=={{ (versions|sort(attribute='ver_obj'))[-1] }},
https://releases.ansible.com/ansible/, the Ansible PPA on Launchpad, or GitHub. Happy automating!
""" # noqa for E501 (line length).
# jinja2 is horrid about getting rid of extra newlines so we have to have a single per paragraph for
# proper wrapping to occur
JINJA_ENV = Environment(
loader=DictLoader({'long': LONG_TEMPLATE,
'short': SHORT_TEMPLATE,
'version_string': VERSION_FRAGMENT,
}),
extensions=['jinja2.ext.i18n'],
trim_blocks=True,
lstrip_blocks=True,
)
class VersionStr(UserString):
def __init__(self, string):
super().__init__(string.strip())
self.ver_obj = LooseVersion(string)
def parse_args(args):
parser = argparse.ArgumentParser(description="Generate email and twitter announcements"
" from template")
parser.add_argument("--version", dest="versions", type=str, required=True, action='append',
help="Versions of Ansible to announce")
parser.add_argument("--name", type=str, required=True, help="Real name to use on emails")
parser.add_argument("--email-out", type=str, default="-",
help="Filename to place the email announcement into")
parser.add_argument("--twitter-out", type=str, default="-",
help="Filename to place the twitter announcement into")
args = parser.parse_args(args)
# Make it possible to sort versions in the jinja2 templates
new_versions = []
for version in args.versions:
new_versions.append(VersionStr(version))
args.versions = new_versions
return args
async def calculate_hash_from_tarball(session, version):
tar_url = f'https://releases.ansible.com/ansible/ansible-{version}.tar.gz'
tar_task = asyncio.create_task(session.get(tar_url))
tar_response = await tar_task
tar_hash = hashlib.sha256()
while True:
chunk = await tar_response.content.read(1024)
if not chunk:
break
tar_hash.update(chunk)
return tar_hash.hexdigest()
async def parse_hash_from_file(session, version):
filename = f'ansible-{version}.tar.gz'
hash_url = f'https://releases.ansible.com/ansible/{filename}.sha'
hash_task = asyncio.create_task(session.get(hash_url))
hash_response = await hash_task
hash_content = await hash_response.read()
precreated_hash, precreated_filename = hash_content.split(None, 1)
if filename != precreated_filename.strip().decode('utf-8'):
raise ValueError(f'Hash file contains hash for a different file: {precreated_filename}')
return precreated_hash.decode('utf-8')
async def get_hash(session, version):
calculated_hash = await calculate_hash_from_tarball(session, version)
precreated_hash = await parse_hash_from_file(session, version)
if calculated_hash != precreated_hash:
raise ValueError(f'Hash in file ansible-{version}.tar.gz.sha {precreated_hash} does not'
f' match hash of tarball {calculated_hash}')
return calculated_hash
async def get_hashes(versions):
hashes = {}
requestors = {}
async with aiohttp.ClientSession() as aio_session:
for version in versions:
requestors[version] = asyncio.create_task(get_hash(aio_session, version))
for version, request in requestors.items():
await request
hashes[version] = request.result()
return hashes
def next_release_date(weeks=3):
days_in_the_future = weeks * 7
today = datetime.datetime.now()
numeric_today = today.weekday()
# We release on Thursdays
if numeric_today == 3:
# 3 is Thursday
pass
elif numeric_today == 4:
# If this is Friday, we can adjust back to Thursday for the next release
today -= datetime.timedelta(days=1)
elif numeric_today < 3:
# Otherwise, slide forward to Thursday
today += datetime.timedelta(days=(3 - numeric_today))
else:
# slightly different formula if it's past Thursday this week. We need to go forward to
# Thursday of next week
today += datetime.timedelta(days=(10 - numeric_today))
next_release = today + datetime.timedelta(days=days_in_the_future)
return next_release
def generate_long_message(versions, name):
hashes = asyncio.run(get_hashes(versions))
version_template = JINJA_ENV.get_template('version_string')
version_str = version_template.render(versions=versions).strip()
next_release = next_release_date()
template = JINJA_ENV.get_template('long')
message = template.render(versions=versions, version_str=version_str,
name=name, hashes=hashes, next_release=next_release)
return message
def generate_short_message(versions):
version_template = JINJA_ENV.get_template('version_string')
version_str = version_template.render(versions=versions).strip()
template = JINJA_ENV.get_template('short')
message = template.render(versions=versions, version_str=version_str)
message = ' '.join(message.split()) + '\n'
return message
def write_message(filename, message):
if filename != '-':
with open(filename, 'w') as out_file:
out_file.write(message)
else:
sys.stdout.write('\n\n')
sys.stdout.write(message)
def main():
args = parse_args(sys.argv[1:])
twitter_message = generate_short_message(args.versions)
email_message = generate_long_message(args.versions, args.name)
write_message(args.twitter_out, twitter_message)
write_message(args.email_out, email_message)
if __name__ == '__main__':
main() |