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ansible/setup.py

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from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import json
import os
import os.path
import re
import sys
import warnings
from collections import defaultdict
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).", file=sys.stderr)
sys.exit(1)
# `distutils` must be imported after `setuptools` or it will cause explosions
# with `setuptools >=48.0.0, <49.1`.
# Refs:
# * https://github.com/ansible/ansible/issues/70456
# * https://github.com/pypa/setuptools/issues/2230
# * https://github.com/pypa/setuptools/commit/bd110264
from distutils.command.build_scripts import build_scripts as BuildScripts
from distutils.command.sdist import sdist as SDist
def find_package_info(*file_paths):
try:
with open(os.path.join(*file_paths), 'r') as f:
info_file = f.read()
except Exception:
raise RuntimeError("Unable to find package info.")
# The version line must have the form
# __version__ = 'ver'
version_match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]",
info_file, re.M)
author_match = re.search(r"^__author__ = ['\"]([^'\"]*)['\"]",
info_file, re.M)
if version_match and author_match:
return version_match.group(1), author_match.group(1)
raise RuntimeError("Unable to find package info.")
def _validate_install_ansible_core():
"""Validate that we can install ansible-core. This checks if
ansible<=2.9 or ansible-base>=2.10 are installed.
"""
# Skip common commands we can ignore
# Do NOT add bdist_wheel here, we don't ship wheels
# and bdist_wheel is the only place we can prevent pip
# from installing, as pip creates a wheel, and installs the wheel
# and we have no influence over installation within a wheel
if set(('sdist', 'egg_info')).intersection(sys.argv):
return
if os.getenv('ANSIBLE_SKIP_CONFLICT_CHECK', '') not in ('', '0'):
return
# Save these for later restoring things to pre invocation
sys_modules = sys.modules.copy()
sys_modules_keys = set(sys_modules)
# Make sure `lib` isn't in `sys.path` that could confuse this
sys_path = sys.path[:]
abspath = os.path.abspath
sys.path[:] = [p for p in sys.path if abspath(p) != abspath('lib')]
try:
from ansible.release import __version__
except ImportError:
pass
else:
version_tuple = tuple(int(v) for v in __version__.split('.')[:2])
if version_tuple >= (2, 11):
return
elif version_tuple == (2, 10):
ansible_name = 'ansible-base'
else:
ansible_name = 'ansible'
stars = '*' * 76
raise RuntimeError(
'''
%s
Cannot install ansible-core with a pre-existing %s==%s
installation.
Installing ansible-core with ansible-2.9 or older, or ansible-base-2.10
currently installed with pip is known to cause problems. Please uninstall
%s and install the new version:
pip uninstall %s
pip install ansible-core
If you want to skip the conflict checks and manually resolve any issues
afterwards, set the ANSIBLE_SKIP_CONFLICT_CHECK environment variable:
ANSIBLE_SKIP_CONFLICT_CHECK=1 pip install ansible-core
%s
''' % (stars, ansible_name, __version__, ansible_name, ansible_name, stars))
finally:
sys.path[:] = sys_path
for key in sys_modules_keys.symmetric_difference(sys.modules):
sys.modules.pop(key, None)
sys.modules.update(sys_modules)
_validate_install_ansible_core()
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.
.. warn::
We want the symlinks in :file:`bin/` that link into :file:`lib/ansible/*` (currently,
:command:`ansible`, :command:`ansible-test`, and :command:`ansible-connection`) to become
real files on install. Updates to the heuristic here *must not* add them to the symlink
cache.
"""
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 target.startswith('/'):
# We do not support absolute symlinks at all
continue
if os.path.dirname(target) == '':
link = filepath[len(topdir):]
if link.startswith('/'):
link = link[1:]
symlinks[os.path.basename(target)].append(link)
else:
# Count how many directory levels from the topdir we are
levels_deep = os.path.dirname(filepath).count('/')
# Count the number of directory levels higher we walk up the tree in target
target_depth = 0
for path_component in target.split('/'):
if path_component == '..':
target_depth += 1
# If we walk past the topdir, then don't store
if target_depth >= levels_deep:
break
else:
target_depth -= 1
else:
# If we managed to stay within the tree, store the symlink
link = filepath[len(topdir):]
if link.startswith('/'):
link = link[1:]
symlinks[target].append(link)
return symlinks
def _cache_symlinks(symlink_data):
with open(SYMLINK_CACHE, 'w') as f:
json.dump(symlink_data, f)
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.load(f)
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.
library_symlinks = _find_symlinks('lib', '.py')
library_symlinks.update(_find_symlinks('test/lib'))
symlink_data = {'script': _find_symlinks('bin'),
'library': library_symlinks,
}
# 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 RuntimeError(
"Pregenerated symlink list was not present and expected "
"symlinks in ./bin were missing or broken. "
"Perhaps this isn't a git checkout?"
)
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
library_symlinks = _find_symlinks('lib', '.py')
library_symlinks.update(_find_symlinks('test/lib'))
symlinks = {'script': _find_symlinks('bin'),
'library': library_symlinks,
}
_cache_symlinks(symlinks)
SDist.run(self)
# Print warnings at the end because no one will see warnings before all the normal status
# output
if os.environ.get('_ANSIBLE_SDIST_FROM_MAKEFILE', False) != '1':
warnings.warn('When setup.py sdist is run from outside of the Makefile,'
' the generated tarball may be incomplete. Use `make snapshot`'
' to create a tarball from an arbitrary checkout or use'
' `cd packaging/release && make release version=[..]` for official builds.',
RuntimeWarning)
def read_file(file_name):
"""Read file and return its contents."""
with open(file_name, 'r') as f:
return f.read()
def read_requirements(file_name):
"""Read requirements file as a list."""
reqs = read_file(file_name).splitlines()
if not reqs:
raise RuntimeError(
"Unable to read requirements from the %s file"
"That indicates this copy of the source code is incomplete."
% file_name
)
return reqs
def get_dynamic_setup_params():
"""Add dynamically calculated setup params to static ones."""
return {
# Retrieve the long description from the README
'long_description': read_file('README.rst'),
'install_requires': read_requirements('requirements.txt'),
}
here = os.path.abspath(os.path.dirname(__file__))
__version__, __author__ = find_package_info(here, 'lib', 'ansible', 'release.py')
static_setup_params = dict(
# 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-core',
version=__version__,
description='Radically simple IT automation',
author=__author__,
author_email='info@ansible.com',
url='https://ansible.com/',
project_urls={
'Bug Tracker': 'https://github.com/ansible/ansible/issues',
'CI: Azure Pipelines': 'https://dev.azure.com/ansible/ansible/',
'Code of Conduct': 'https://docs.ansible.com/ansible/latest/community/code_of_conduct.html',
'Documentation': 'https://docs.ansible.com/ansible/',
'Mailing lists': 'https://docs.ansible.com/ansible/latest/community/communication.html#mailing-list-information',
'Source Code': 'https://github.com/ansible/ansible',
},
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.
python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*',
package_dir={'': 'lib',
'ansible_test': 'test/lib/ansible_test'},
packages=find_packages('lib') + find_packages('test/lib'),
include_package_data=True,
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',
'Programming Language :: Python :: 2.7',
'Programming Language :: Python :: 3',
'Programming Language :: Python :: 3.5',
'Programming Language :: Python :: 3.6',
'Programming Language :: Python :: 3.7',
'Programming Language :: Python :: 3.8',
'Programming Language :: Python :: 3.9',
'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',
'bin/ansible-test',
],
data_files=[],
# Installing as zip files would break due to references to __file__
zip_safe=False
)
def main():
"""Invoke installation process using setuptools."""
setup_params = dict(static_setup_params, **get_dynamic_setup_params())
ignore_warning_regex = (
r"Unknown distribution option: '(project_urls|python_requires)'"
)
warnings.filterwarnings(
'ignore',
message=ignore_warning_regex,
category=UserWarning,
module='distutils.dist',
)
setup(**setup_params)
warnings.resetwarnings()
if __name__ == '__main__':
main()
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