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93 lines
2.4 KiB
Python
93 lines
2.4 KiB
Python
5 years ago
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"""Build metadata for a project using PEP 517 hooks.
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"""
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import argparse
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import logging
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import os
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import shutil
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import functools
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try:
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import importlib.metadata as imp_meta
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except ImportError:
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import importlib_metadata as imp_meta
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try:
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from zipfile import Path
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except ImportError:
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from zipp import Path
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from .envbuild import BuildEnvironment
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from .wrappers import Pep517HookCaller, quiet_subprocess_runner
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from .dirtools import tempdir, mkdir_p, dir_to_zipfile
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from .build import validate_system, load_system, compat_system
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log = logging.getLogger(__name__)
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def _prep_meta(hooks, env, dest):
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reqs = hooks.get_requires_for_build_wheel({})
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log.info('Got build requires: %s', reqs)
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env.pip_install(reqs)
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log.info('Installed dynamic build dependencies')
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with tempdir() as td:
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log.info('Trying to build metadata in %s', td)
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filename = hooks.prepare_metadata_for_build_wheel(td, {})
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source = os.path.join(td, filename)
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shutil.move(source, os.path.join(dest, os.path.basename(filename)))
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def build(source_dir='.', dest=None, system=None):
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system = system or load_system(source_dir)
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dest = os.path.join(source_dir, dest or 'dist')
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mkdir_p(dest)
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validate_system(system)
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hooks = Pep517HookCaller(
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source_dir, system['build-backend'], system.get('backend-path')
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)
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with hooks.subprocess_runner(quiet_subprocess_runner):
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with BuildEnvironment() as env:
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env.pip_install(system['requires'])
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_prep_meta(hooks, env, dest)
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def build_as_zip(builder=build):
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with tempdir() as out_dir:
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builder(dest=out_dir)
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return dir_to_zipfile(out_dir)
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def load(root):
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"""
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Given a source directory (root) of a package,
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return an importlib.metadata.Distribution object
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with metadata build from that package.
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"""
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root = os.path.expanduser(root)
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system = compat_system(root)
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builder = functools.partial(build, source_dir=root, system=system)
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path = Path(build_as_zip(builder))
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return imp_meta.PathDistribution(path)
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parser = argparse.ArgumentParser()
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parser.add_argument(
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'source_dir',
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help="A directory containing pyproject.toml",
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)
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parser.add_argument(
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'--out-dir', '-o',
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help="Destination in which to save the builds relative to source dir",
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)
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def main():
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args = parser.parse_args()
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build(args.source_dir, args.out_dir)
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if __name__ == '__main__':
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main()
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