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09448c0994
Add a new phase validating the usability of installed Python packages.
* gnu/packages/aux-files/python/sanity-check.py: New file.
* Makefile.am (AUX_FILES): Register it.
* guix/build-system/python.scm (sanity-check.py): New variable.
(lower): Add the script as an implicit input.
* guix/build/python-build-system.scm: Remove trailing #t.
(sanity-check): New phase.
(%standard-phases): Use it.
* tests/builders.scm: (make-python-dummy)
(dummy-ok, dummy-dummy-nosetuptools, dummy-fail-requirements)
(dummy-fail-import, dummy-fail-console-script): New variables.
("python-build-system: dummy-ok")
("python-build-system: dummy-dummy-nosetuptools")
("python-build-system: dummy-fail-requirements")
("python-build-system: dummy-fail-import")
("python-build-system: dummy-fail-console-script"): Add tests.
91 lines
3.2 KiB
Python
91 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
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# GNU Guix --- Functional package management for GNU
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# Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
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#
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# This file is part of GNU Guix.
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#
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# GNU Guix is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or (at
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# your option) any later version.
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#
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# GNU Guix is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import print_function # Python 2 support.
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import importlib
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import pkg_resources
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import sys
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import traceback
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try:
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from importlib.machinery import PathFinder
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except ImportError:
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PathFinder = None
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ret = 0
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# Only check site-packages installed by this package, but not dependencies
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# (which pkg_resources.working_set would include). Path supplied via argv.
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ws = pkg_resources.find_distributions(sys.argv[1])
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for dist in ws:
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print('validating', repr(dist.project_name), dist.location)
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try:
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print('...checking requirements: ', end='')
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req = str(dist.as_requirement())
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# dist.activate() is not enough to actually check requirements, we
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# have to .require() it.
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pkg_resources.require(req)
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print('OK')
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except Exception as e:
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print('ERROR:', req, e)
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ret = 1
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continue
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# Try to load top level modules. This should not have any side-effects.
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try:
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metalines = dist.get_metadata_lines('top_level.txt')
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except KeyError:
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# distutils (i.e. #:use-setuptools? #f) will not install any metadata.
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print('WARNING: cannot determine top-level modules')
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continue
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for name in metalines:
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# Only available on Python 3.
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if PathFinder and PathFinder.find_spec(name) is None:
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# Ignore unavailable modules, often C modules, which were not
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# installed at the top-level. Cannot use ModuleNotFoundError,
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# because it is raised by failed imports too.
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continue
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try:
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print('...trying to load module', name, end=': ')
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importlib.import_module(name)
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print('OK')
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except Exception:
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print('ERROR:')
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traceback.print_exc(file=sys.stdout)
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ret = 1
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continue
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# Try to load entry points of console scripts too, making sure they
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# work. They should be removed if they don't. Other groups may not be
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# safe, as they can depend on optional packages.
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for group, v in dist.get_entry_map().items():
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if group not in {'console_scripts', 'gui_scripts'}:
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continue
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for name, ep in v.items():
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try:
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print('...trying to load endpoint', group, name, end=': ')
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ep.load()
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print('OK')
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except Exception:
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print('ERROR:')
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traceback.print_exc(file=sys.stdout)
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ret = 1
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sys.exit(ret)
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