ansible/setup.py
Stephen Weber 7afa34ae8a Convert README from Markdown to ReStructured Text and use as longdesc (#22330)
* Convert README from Markdown to ReStructured Text and use as longdesc

Discussion in #13758 led to deciding to switch README to rst and having
setup.py consume it as the long_description.

* Fix long string in setup.py for pep8 compliance

* Open README.rst as read-only

* Update usages of root README.md to README.rst

Unsure about the file ./packaging/debian/docs as it (only) contains the
text README.md. I believe it's referencing ./packaging/debian/README.md
but maybe someone who knows debian packaging could review it?

* Pick up fixes that had been merged into README.md after the initial conversion to rst
2018-04-06 12:38:40 -07:00

240 lines
8.7 KiB
Python

import json
import os
import os.path
import re
import sys
from collections import defaultdict
from distutils.command.build_scripts import build_scripts as BuildScripts
from distutils.command.sdist import sdist as SDist
try:
from setuptools import setup, find_packages
from setuptools.command.build_py import build_py as BuildPy
from setuptools.command.install_lib import install_lib as InstallLib
from setuptools.command.install_scripts import install_scripts as InstallScripts
except ImportError:
print("Ansible now needs setuptools in order to build. Install it using"
" your package manager (usually python-setuptools) or via pip (pip"
" install setuptools).")
sys.exit(1)
sys.path.insert(0, os.path.abspath('lib'))
from ansible.release import __version__, __author__
SYMLINK_CACHE = 'SYMLINK_CACHE.json'
def _find_symlinks(topdir, extension=''):
"""Find symlinks that should be maintained
Maintained symlinks exist in the bin dir or are modules which have
aliases. Our heuristic is that they are a link in a certain path which
point to a file in the same directory.
"""
symlinks = defaultdict(list)
for base_path, dirs, files in os.walk(topdir):
for filename in files:
filepath = os.path.join(base_path, filename)
if os.path.islink(filepath) and filename.endswith(extension):
target = os.readlink(filepath)
if os.path.dirname(target) == '':
link = filepath[len(topdir):]
if link.startswith('/'):
link = link[1:]
symlinks[os.path.basename(target)].append(link)
return symlinks
def _cache_symlinks(symlink_data):
with open(SYMLINK_CACHE, 'w') as f:
f.write(json.dumps(symlink_data))
def _maintain_symlinks(symlink_type, base_path):
"""Switch a real file into a symlink"""
try:
# Try the cache first because going from git checkout to sdist is the
# only time we know that we're going to cache correctly
with open(SYMLINK_CACHE, 'r') as f:
symlink_data = json.loads(f.read())
except (IOError, OSError) as e:
# IOError on py2, OSError on py3. Both have errno
if e.errno == 2:
# SYMLINKS_CACHE doesn't exist. Fallback to trying to create the
# cache now. Will work if we're running directly from a git
# checkout or from an sdist created earlier.
symlink_data = {'script': _find_symlinks('bin'),
'library': _find_symlinks('lib', '.py'),
}
# Sanity check that something we know should be a symlink was
# found. We'll take that to mean that the current directory
# structure properly reflects symlinks in the git repo
if 'ansible-playbook' in symlink_data['script']['ansible']:
_cache_symlinks(symlink_data)
else:
raise
else:
raise
symlinks = symlink_data[symlink_type]
for source in symlinks:
for dest in symlinks[source]:
dest_path = os.path.join(base_path, dest)
if not os.path.islink(dest_path):
try:
os.unlink(dest_path)
except OSError as e:
if e.errno == 2:
# File does not exist which is all we wanted
pass
os.symlink(source, dest_path)
class BuildPyCommand(BuildPy):
def run(self):
BuildPy.run(self)
_maintain_symlinks('library', self.build_lib)
class BuildScriptsCommand(BuildScripts):
def run(self):
BuildScripts.run(self)
_maintain_symlinks('script', self.build_dir)
class InstallLibCommand(InstallLib):
def run(self):
InstallLib.run(self)
_maintain_symlinks('library', self.install_dir)
class InstallScriptsCommand(InstallScripts):
def run(self):
InstallScripts.run(self)
_maintain_symlinks('script', self.install_dir)
class SDistCommand(SDist):
def run(self):
# have to generate the cache of symlinks for release as sdist is the
# only command that has access to symlinks from the git repo
symlinks = {'script': _find_symlinks('bin'),
'library': _find_symlinks('lib', '.py'),
}
_cache_symlinks(symlinks)
SDist.run(self)
with open('requirements.txt') as requirements_file:
install_requirements = requirements_file.read().splitlines()
if not install_requirements:
print("Unable to read requirements from the requirements.txt file"
"That indicates this copy of the source code is incomplete.")
sys.exit(2)
# pycrypto or cryptography. We choose a default but allow the user to
# override it. This translates into pip install of the sdist deciding what
# package to install and also the runtime dependencies that pkg_resources
# knows about
crypto_backend = os.environ.get('ANSIBLE_CRYPTO_BACKEND', None)
if crypto_backend:
if crypto_backend.strip() == 'pycrypto':
# Attempt to set version requirements
crypto_backend = 'pycrypto >= 2.6'
install_requirements = [r for r in install_requirements if not (r.lower().startswith('pycrypto') or r.lower().startswith('cryptography'))]
install_requirements.append(crypto_backend)
# specify any extra requirements for installation
extra_requirements = dict()
extra_requirements_dir = 'packaging/requirements'
for extra_requirements_filename in os.listdir(extra_requirements_dir):
filename_match = re.search(r'^requirements-(\w*).txt$', extra_requirements_filename)
if filename_match:
with open(os.path.join(extra_requirements_dir, extra_requirements_filename)) as extra_requirements_file:
extra_requirements[filename_match.group(1)] = extra_requirements_file.read().splitlines()
try:
with open('README.rst', 'r') as readme_file:
longdesc = readme_file.read()
except (IOError, OSError):
longdesc = ('Ansible is a radically simple IT automation system. It handles'
' configuration-management, application deployment, cloud provisioning, ad-hoc'
' task-execution, and multinode orchestration - including trivializing things like'
' zero-downtime rolling updates with load balancers.\n'
'\n'
'Read the documentation and more at https://ansible.com/'
)
setup(
# Use the distutils SDist so that symlinks are not expanded
# Use a custom Build for the same reason
cmdclass={
'build_py': BuildPyCommand,
'build_scripts': BuildScriptsCommand,
'install_lib': InstallLibCommand,
'install_scripts': InstallScriptsCommand,
'sdist': SDistCommand,
},
name='ansible',
version=__version__,
description='Radically simple IT automation',
long_description=longdesc,
author=__author__,
author_email='info@ansible.com',
url='https://ansible.com/',
license='GPLv3+',
# Ansible will also make use of a system copy of python-six and
# python-selectors2 if installed but use a Bundled copy if it's not.
install_requires=install_requirements,
package_dir={'': 'lib'},
packages=find_packages('lib'),
package_data={
'': [
'module_utils/powershell/*.psm1',
'module_utils/powershell/*/*.psm1',
'modules/windows/*.ps1',
'modules/windows/*/*.ps1',
'galaxy/data/*/*.*',
'galaxy/data/*/*/.*',
'galaxy/data/*/*/*.*',
'galaxy/data/*/tests/inventory',
'config/base.yml',
],
},
classifiers=[
'Development Status :: 5 - Production/Stable',
'Environment :: Console',
'Intended Audience :: Developers',
'Intended Audience :: Information Technology',
'Intended Audience :: System Administrators',
'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)',
'Natural Language :: English',
'Operating System :: POSIX',
'Programming Language :: Python :: 2.6',
'Programming Language :: Python :: 2.7',
'Topic :: System :: Installation/Setup',
'Topic :: System :: Systems Administration',
'Topic :: Utilities',
],
scripts=[
'bin/ansible',
'bin/ansible-playbook',
'bin/ansible-pull',
'bin/ansible-doc',
'bin/ansible-galaxy',
'bin/ansible-console',
'bin/ansible-connection',
'bin/ansible-vault',
'bin/ansible-config',
'bin/ansible-inventory',
],
data_files=[],
extras_require=extra_requirements,
# Installing as zip files would break due to references to __file__
zip_safe=False
)