[V3 Everything] Package bot and write setup scripts (#964)

Ya'll are gonna hate me.

* Initial modifications

* Add initial setup.py

* working setup py help

* Modify setup file to package stuff

* Move a bunch of shit and fix imports

* Fix or skip tests

* Must add init files for find_packages to work

* Move main to scripts folder and rename

* Add shebangs

* Copy over translation files

* WORKING PIP INSTALL

* add dependency information

* Hardcoded version for now, will need to figure out a better way to do this

* OKAY ITS FINALLY FUCKING WORKING

* Add this guy

* Fix stuff

* Change readme to rst

* Remove double sentry opt in

* Oopsie

* Fix this thing

* Aaaand fix test

* Aaaand fix test

* Fix core cog importing and default cog install path

* Adjust readme

* change instance name from optional to required

* Ayyy let's do more dependency injection

setup.py

@@ -0,0 +1,111 @@
+from distutils.core import setup
+from pathlib import Path
+from subprocess import run, PIPE
+
+from setuptools import find_packages
+
+
+def get_package_list():
+    core = find_packages(include=['redbot', 'redbot.*'])
+    return core
+
+
+def get_requirements():
+    with open('requirements.txt') as f:
+        requirements = f.read().splitlines()
+    return requirements
+
+
+def get_version():
+    try:
+        p = run(
+            "git describe --abbrev=0 --tags".split(),
+            stdout=PIPE
+        )
+    except FileNotFoundError:
+        # No git
+        return 3, 0, 0
+
+    if p.returncode != 0:
+        return 3, 0, 0
+
+    stdout = p.stdout.strip().decode()
+    if stdout.startswith("v"):
+        numbers = stdout[1:].split('.')
+        args = [0, 0, 0]
+        for i in range(3):
+            try:
+                args[i] = int(numbers[i])
+            except (IndexError, ValueError):
+                args[i] = 0
+        return args
+    return 3, 0, 0
+
+
+def find_locale_folders():
+    """
+    Ignore this tomfoolery in the desire for automation. It works, that's
+    all you gotta know. Don't fuck with this unless you really know what
+    you're doing, otherwise we lose all translations.
+    """
+    def glob_locale_files(path: Path):
+        msgs = path.glob("*.po")
+
+        parents = path.parents
+
+        return [str(m.relative_to(parents[0])) for m in msgs]
+
+    ret = {
+        'redbot.core': glob_locale_files(Path('redbot/core/locales'))
+    }
+
+    cogs_path = Path('redbot/cogs')
+
+    for cog_folder in cogs_path.iterdir():
+        locales_folder = cog_folder / 'locales'
+        if not locales_folder.is_dir():
+            continue
+
+        pkg_name = str(cog_folder).replace('/', '.')
+        ret[pkg_name] = glob_locale_files(locales_folder)
+
+    return ret
+
+setup(
+    name='Red-DiscordBot',
+    version="{}.{}.{}a13".format(*get_version()),
+    packages=get_package_list(),
+    package_data=find_locale_folders(),
+    url='https://github.com/Cog-Creators/Red-DiscordBot',
+    license='GPLv3',
+    author='Cog-Creators',
+    author_email='',
+    description='A highly customizable Discord bot',
+    classifiers=[
+        'Development Status :: 4 - Beta',
+        'Framework :: AsyncIO',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Topic :: Communications :: Chat',
+        'Topic :: Documentation :: Sphinx'
+    ],
+    entry_points={
+        'console_scripts': [
+            'redbot=redbot.__main__:main',
+            'redbot-setup=redbot.setup:basic_setup']
+    },
+    python_requires='>=3.5',
+    setup_requires=get_requirements(),
+    install_requires=get_requirements(),
+    dependency_links=[
+        'https://github.com/Rapptz/discord.py/tarball/rewrite#egg=discord.py-1.0'
+    ],
+    extras_require={
+        'test': ['pytest>=3', 'pytest-asyncio'],
+        'mongo': ['pymongo', 'motor'],
+        'docs': ['sphinx', 'sphinxcontrib-asyncio', 'sphinx_rtd_theme']
+    }
+)