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core/base/libs/socrate
21
core/base/libs/socrate/LICENSE.md
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core/base/libs/socrate/LICENSE.md
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MIT License
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Copyright (c) 2019 Mailu
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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2
core/base/libs/socrate/MANIFEST.in
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core/base/libs/socrate/MANIFEST.in
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include README.md
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include LICENSE.md
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core/base/libs/socrate/README.md
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core/base/libs/socrate/README.md
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Socrate is a simple Python module providing a set of utility functions for
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Python daemon applications.
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The scope includes:
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- configuration utilities (configuration parsing, etc.)
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- system utilities (access to DNS, stats, etc.)
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Setup
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======
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Socrate is available on Pypi, simpy run:
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```
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pip install socrate
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```
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Contributing
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============
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Podop is free software, open to suggestions and contributions. All
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components are free software and compatible with the MIT license. All
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the code is placed under the MIT license.
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core/base/libs/socrate/setup.py
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core/base/libs/socrate/setup.py
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#!/usr/bin/env python
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from distutils.core import setup
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with open("README.md", "r") as fh:
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long_description = fh.read()
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setup(
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name="socrate",
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version="0.1",
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description="Socrate daemon utilities",
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long_description=long_description,
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long_description_content_type="text/markdown",
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author="Pierre Jaury",
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author_email="pierre@jaury.eu",
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url="https://github.com/mailu/socrate.git",
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packages=["socrate"],
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include_package_data=True,
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install_requires=[
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"jinja2",
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"importlib",
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"tenacity"
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]
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)
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core/base/libs/socrate/socrate/__init__.py
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core/base/libs/socrate/socrate/__init__.py
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core/base/libs/socrate/socrate/conf.py
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core/base/libs/socrate/socrate/conf.py
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import jinja2
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import importlib
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def jinja(source, environ, destination=None):
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""" Render a Jinja configuration file
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"""
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with open(source, "r") as template:
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result = jinja2.Template(template.read()).render(environ)
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if destination is not None:
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with open(destination, "w") as handle:
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handle.write(result)
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return result
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def merge(*objects):
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""" Merge simple python objects, which only consist of
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strings, integers, bools, lists and dicts
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"""
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mode = type(objects[0])
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if not all(type(obj) is mode for obj in objects):
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raise ValueError("Cannot merge mixed typed objects")
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if len(objects) == 1:
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return objects[0]
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elif mode is dict:
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return {
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key: merge(*[obj[key] for obj in objects if key in obj])
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for obj in objects for key in obj.keys()
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}
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elif mode is list:
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return sum(objects)
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else:
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raise ValueError("Cannot merge objects of type {}: {}".format(
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mode, objects))
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def resolve_function(function, cache={}):
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""" Resolve a fully qualified function name in Python, and caches
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the result
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"""
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if function not in cache:
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module, name = function.rsplit(".", 1)
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cache[function] = getattr(importlib.import_module(module), name)
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return cache[function]
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core/base/libs/socrate/socrate/system.py
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core/base/libs/socrate/socrate/system.py
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import socket
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import tenacity
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@retry(stop=tenacity.stop_after_attempt(100),
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wait=tenacity.wait_random(min=2, max=5))
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def resolve_hostname(hostname):
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""" This function uses system DNS to resolve a hostname.
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It is capable of retrying in case the host is not immediately available
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"""
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return socket.gethostbyname(hostname)
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def resolve_address(address):
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""" This function is identical to ``resolve_host`` but also supports
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resolving an address, i.e. including a port.
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"""
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hostname, *rest = address.resplit(":", 1)
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ip_address = resolve_hostname(hostname)
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return ip_address + "".join(":" + port for port in rest)
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