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"""
Implementation
"""
import os as _os
import shlex as _shlex
import contextlib as _contextlib
import sys as _sys
import operator as _operator
import itertools as _itertools
try:
# ensure that map has the same meaning on Python 2
from future_builtins import map
except ImportError:
pass
import pkg_resources
import setuptools.command.test as orig
@_contextlib.contextmanager
def _save_argv(repl=None):
saved = _sys.argv[:]
if repl is not None:
_sys.argv[:] = repl
try:
yield saved
finally:
_sys.argv[:] = saved
@_contextlib.contextmanager
def null():
yield
class PyTest(orig.test):
"""
>>> import setuptools
>>> dist = setuptools.Distribution()
>>> cmd = PyTest(dist)
"""
user_options = [
('extras', None, "Install (all) setuptools extras when running tests"),
('index-url=', None, "Specify an index url from which to retrieve "
"dependencies"),
('allow-hosts=', None, "Whitelist of comma-separated hosts to allow "
"when retrieving dependencies"),
('addopts=', None, "Additional options to be passed verbatim to the "
"pytest runner")
]
def initialize_options(self):
self.extras = False
self.index_url = None
self.allow_hosts = None
self.addopts = []
def finalize_options(self):
if self.addopts:
self.addopts = _shlex.split(self.addopts)
@staticmethod
def marker_passes(marker):
"""
Given an environment marker, return True if the marker is valid
and matches this environment.
"""
return (
marker
and not pkg_resources.invalid_marker(marker)
and pkg_resources.evaluate_marker(marker)
)
@staticmethod
def _install_dists_compat(dist):
"""
Copy of install_dists from setuptools 27.3.0.
"""
ir_d = dist.fetch_build_eggs(dist.install_requires or [])
tr_d = dist.fetch_build_eggs(dist.tests_require or [])
return _itertools.chain(ir_d, tr_d)
def install_dists(self, dist):
"""
Extend install_dists to include extras support
"""
i_d = getattr(orig.test, 'install_dists', self._install_dists_compat)
return _itertools.chain(i_d(dist), self.install_extra_dists(dist))
def install_extra_dists(self, dist):
"""
Install extras that are indicated by markers or
install all extras if '--extras' is indicated.
"""
extras_require = dist.extras_require or {}
spec_extras = (
(spec.partition(':'), reqs)
for spec, reqs in extras_require.items()
)
matching_extras = (
reqs
for (name, sep, marker), reqs in spec_extras
# never include extras that fail to pass marker eval
if marker and not self.marker_passes(marker)
# include unnamed extras or all if self.extras indicated
and (not name or self.extras)
)
results = list(map(dist.fetch_build_eggs, matching_extras))
return _itertools.chain.from_iterable(results)
@staticmethod
def paths_on_pythonpath(paths):
"""
Backward compatibility for paths_on_pythonpath;
Returns a null context if paths_on_pythonpath is
not implemented in orig.test.
Note that this also means that the paths iterable
is never consumed, which incidentally means that
the None values from dist.fetch_build_eggs in
older Setuptools will be disregarded.
"""
try:
return orig.test.paths_on_pythonpath(paths)
except AttributeError:
return null()
def _super_run(self):
if hasattr(orig.test, 'install_dists'):
return orig.test.run(self)
# for backward compatibility with setuptools < 27.3
installed_dists = self.install_dists(self.distribution)
if self.dry_run:
self.announce('skipping tests (dry run)')
return
paths = map(_operator.attrgetter('location'), installed_dists)
with self.paths_on_pythonpath(paths):
self.with_project_on_sys_path(self.run_tests)
def run(self):
"""
Override run to ensure requirements are available in this session (but
don't install them anywhere).
"""
self._build_egg_fetcher()
self._super_run()
if self.result_code:
raise SystemExit(self.result_code)
return self.result_code
def _build_egg_fetcher(self):
"""Build an egg fetcher that respects index_url and allow_hosts"""
# modified from setuptools.dist:Distribution.fetch_build_egg
from setuptools.command.easy_install import easy_install
main_dist = self.distribution
# construct a fake distribution to store the args for easy_install
dist = main_dist.__class__({'script_args': ['easy_install']})
dist.parse_config_files()
opts = dist.get_option_dict('easy_install')
keep = (
'find_links', 'site_dirs', 'index_url', 'optimize',
'site_dirs', 'allow_hosts'
)
for key in opts.keys():
if key not in keep:
del opts[key] # don't use any other settings
if main_dist.dependency_links:
links = main_dist.dependency_links[:]
if 'find_links' in opts:
links = opts['find_links'][1].split() + links
opts['find_links'] = ('setup', links)
if self.allow_hosts:
opts['allow_hosts'] = ('test', self.allow_hosts)
if self.index_url:
opts['index_url'] = ('test', self.index_url)
install_dir_func = getattr(dist, 'get_egg_cache_dir', _os.getcwd)
install_dir = install_dir_func()
cmd = easy_install(
dist, args=["x"], install_dir=install_dir, exclude_scripts=True,
always_copy=False, build_directory=None, editable=False,
upgrade=False, multi_version=True, no_report = True
)
cmd.ensure_finalized()
main_dist._egg_fetcher = cmd
@property
def _argv(self):
return ['pytest'] + self.addopts
def run_tests(self):
"""
Invoke pytest, replacing argv.
"""
with _save_argv(_sys.argv[:1] + self.addopts):
self.result_code = __import__('pytest').main()
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