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opt
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python27
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lib
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python2.7
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site-packages
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pip
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pep517
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meta.py
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"""Build metadata for a project using PEP 517 hooks. """ import argparse import logging import os import shutil import functools try: import importlib.metadata as imp_meta except ImportError: import importlib_metadata as imp_meta try: from zipfile import Path except ImportError: from zipp import Path from .envbuild import BuildEnvironment from .wrappers import Pep517HookCaller, quiet_subprocess_runner from .dirtools import tempdir, mkdir_p, dir_to_zipfile from .build import validate_system, load_system, compat_system log = logging.getLogger(__name__) def _prep_meta(hooks, env, dest): reqs = hooks.get_requires_for_build_wheel({}) log.info('Got build requires: %s', reqs) env.pip_install(reqs) log.info('Installed dynamic build dependencies') with tempdir() as td: log.info('Trying to build metadata in %s', td) filename = hooks.prepare_metadata_for_build_wheel(td, {}) source = os.path.join(td, filename) shutil.move(source, os.path.join(dest, os.path.basename(filename))) def build(source_dir='.', dest=None, system=None): system = system or load_system(source_dir) dest = os.path.join(source_dir, dest or 'dist') mkdir_p(dest) validate_system(system) hooks = Pep517HookCaller( source_dir, system['build-backend'], system.get('backend-path') ) with hooks.subprocess_runner(quiet_subprocess_runner): with BuildEnvironment() as env: env.pip_install(system['requires']) _prep_meta(hooks, env, dest) def build_as_zip(builder=build): with tempdir() as out_dir: builder(dest=out_dir) return dir_to_zipfile(out_dir) def load(root): """ Given a source directory (root) of a package, return an importlib.metadata.Distribution object with metadata build from that package. """ root = os.path.expanduser(root) system = compat_system(root) builder = functools.partial(build, source_dir=root, system=system) path = Path(build_as_zip(builder)) return imp_meta.PathDistribution(path) parser = argparse.ArgumentParser() parser.add_argument( 'source_dir', help="A directory containing pyproject.toml", ) parser.add_argument( '--out-dir', '-o', help="Destination in which to save the builds relative to source dir", ) def main(): args = parser.parse_args() build(args.source_dir, args.out_dir) if __name__ == '__main__': main()