Viewing file:  check.py (5.82 KB) -rw-r--r--
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"""Check a project and backend by attempting to build using PEP 517 hooks.
"""
import argparse
import logging
import os
from os.path import isfile, join as pjoin
from pip._vendor.toml import TomlDecodeError, load as toml_load
import shutil
from subprocess import CalledProcessError
import sys
import tarfile
from tempfile import mkdtemp
import zipfile
from .colorlog import enable_colourful_output
from .envbuild import BuildEnvironment
from .wrappers import Pep517HookCaller
log = logging.getLogger(__name__)
def check_build_sdist(hooks, build_sys_requires):
with BuildEnvironment() as env:
try:
env.pip_install(build_sys_requires)
log.info('Installed static build dependencies')
except CalledProcessError:
log.error('Failed to install static build dependencies')
return False
try:
reqs = hooks.get_requires_for_build_sdist({})
log.info('Got build requires: %s', reqs)
except Exception:
log.error('Failure in get_requires_for_build_sdist', exc_info=True)
return False
try:
env.pip_install(reqs)
log.info('Installed dynamic build dependencies')
except CalledProcessError:
log.error('Failed to install dynamic build dependencies')
return False
td = mkdtemp()
log.info('Trying to build sdist in %s', td)
try:
try:
filename = hooks.build_sdist(td, {})
log.info('build_sdist returned %r', filename)
except Exception:
log.info('Failure in build_sdist', exc_info=True)
return False
if not filename.endswith('.tar.gz'):
log.error(
"Filename %s doesn't have .tar.gz extension", filename)
return False
path = pjoin(td, filename)
if isfile(path):
log.info("Output file %s exists", path)
else:
log.error("Output file %s does not exist", path)
return False
if tarfile.is_tarfile(path):
log.info("Output file is a tar file")
else:
log.error("Output file is not a tar file")
return False
finally:
shutil.rmtree(td)
return True
def check_build_wheel(hooks, build_sys_requires):
with BuildEnvironment() as env:
try:
env.pip_install(build_sys_requires)
log.info('Installed static build dependencies')
except CalledProcessError:
log.error('Failed to install static build dependencies')
return False
try:
reqs = hooks.get_requires_for_build_wheel({})
log.info('Got build requires: %s', reqs)
except Exception:
log.error('Failure in get_requires_for_build_sdist', exc_info=True)
return False
try:
env.pip_install(reqs)
log.info('Installed dynamic build dependencies')
except CalledProcessError:
log.error('Failed to install dynamic build dependencies')
return False
td = mkdtemp()
log.info('Trying to build wheel in %s', td)
try:
try:
filename = hooks.build_wheel(td, {})
log.info('build_wheel returned %r', filename)
except Exception:
log.info('Failure in build_wheel', exc_info=True)
return False
if not filename.endswith('.whl'):
log.error("Filename %s doesn't have .whl extension", filename)
return False
path = pjoin(td, filename)
if isfile(path):
log.info("Output file %s exists", path)
else:
log.error("Output file %s does not exist", path)
return False
if zipfile.is_zipfile(path):
log.info("Output file is a zip file")
else:
log.error("Output file is not a zip file")
return False
finally:
shutil.rmtree(td)
return True
def check(source_dir):
pyproject = pjoin(source_dir, 'pyproject.toml')
if isfile(pyproject):
log.info('Found pyproject.toml')
else:
log.error('Missing pyproject.toml')
return False
try:
with open(pyproject) as f:
pyproject_data = toml_load(f)
# Ensure the mandatory data can be loaded
buildsys = pyproject_data['build-system']
requires = buildsys['requires']
backend = buildsys['build-backend']
backend_path = buildsys.get('backend-path')
log.info('Loaded pyproject.toml')
except (TomlDecodeError, KeyError):
log.error("Invalid pyproject.toml", exc_info=True)
return False
hooks = Pep517HookCaller(source_dir, backend, backend_path)
sdist_ok = check_build_sdist(hooks, requires)
wheel_ok = check_build_wheel(hooks, requires)
if not sdist_ok:
log.warning('Sdist checks failed; scroll up to see')
if not wheel_ok:
log.warning('Wheel checks failed')
return sdist_ok
def main(argv=None):
ap = argparse.ArgumentParser()
ap.add_argument(
'source_dir',
help="A directory containing pyproject.toml")
args = ap.parse_args(argv)
enable_colourful_output()
ok = check(args.source_dir)
if ok:
print(ansi('Checks passed', 'green'))
else:
print(ansi('Checks failed', 'red'))
sys.exit(1)
ansi_codes = {
'reset': '\x1b[0m',
'bold': '\x1b[1m',
'red': '\x1b[31m',
'green': '\x1b[32m',
}
def ansi(s, attr):
if os.name != 'nt' and sys.stdout.isatty():
return ansi_codes[attr] + str(s) + ansi_codes['reset']
else:
return str(s)
if __name__ == '__main__':
main()
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