369 lines
14 KiB
Python
369 lines
14 KiB
Python
from functools import partial
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from glob import glob
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from distutils.util import convert_path
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import distutils.command.build_py as orig
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import os
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import fnmatch
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import textwrap
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import io
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import distutils.errors
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import itertools
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import stat
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import warnings
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from pathlib import Path
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from typing import Dict, Iterable, Iterator, List, Optional, Tuple
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from setuptools._deprecation_warning import SetuptoolsDeprecationWarning
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from setuptools.extern.more_itertools import unique_everseen
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def make_writable(target):
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os.chmod(target, os.stat(target).st_mode | stat.S_IWRITE)
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class build_py(orig.build_py):
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"""Enhanced 'build_py' command that includes data files with packages
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The data files are specified via a 'package_data' argument to 'setup()'.
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See 'setuptools.dist.Distribution' for more details.
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Also, this version of the 'build_py' command allows you to specify both
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'py_modules' and 'packages' in the same setup operation.
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"""
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editable_mode: bool = False
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existing_egg_info_dir: Optional[str] = None #: Private API, internal use only.
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def finalize_options(self):
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orig.build_py.finalize_options(self)
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self.package_data = self.distribution.package_data
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self.exclude_package_data = self.distribution.exclude_package_data or {}
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if 'data_files' in self.__dict__:
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del self.__dict__['data_files']
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self.__updated_files = []
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def copy_file(self, infile, outfile, preserve_mode=1, preserve_times=1,
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link=None, level=1):
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# Overwrite base class to allow using links
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if link:
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infile = str(Path(infile).resolve())
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outfile = str(Path(outfile).resolve())
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return super().copy_file(infile, outfile, preserve_mode, preserve_times,
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link, level)
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def run(self):
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"""Build modules, packages, and copy data files to build directory"""
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if not (self.py_modules or self.packages) or self.editable_mode:
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return
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if self.py_modules:
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self.build_modules()
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if self.packages:
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self.build_packages()
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self.build_package_data()
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# Only compile actual .py files, using our base class' idea of what our
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# output files are.
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self.byte_compile(orig.build_py.get_outputs(self, include_bytecode=0))
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def __getattr__(self, attr):
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"lazily compute data files"
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if attr == 'data_files':
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self.data_files = self._get_data_files()
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return self.data_files
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return orig.build_py.__getattr__(self, attr)
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def build_module(self, module, module_file, package):
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outfile, copied = orig.build_py.build_module(self, module, module_file, package)
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if copied:
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self.__updated_files.append(outfile)
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return outfile, copied
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def _get_data_files(self):
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"""Generate list of '(package,src_dir,build_dir,filenames)' tuples"""
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self.analyze_manifest()
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return list(map(self._get_pkg_data_files, self.packages or ()))
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def get_data_files_without_manifest(self):
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"""
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Generate list of ``(package,src_dir,build_dir,filenames)`` tuples,
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but without triggering any attempt to analyze or build the manifest.
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"""
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# Prevent eventual errors from unset `manifest_files`
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# (that would otherwise be set by `analyze_manifest`)
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self.__dict__.setdefault('manifest_files', {})
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return list(map(self._get_pkg_data_files, self.packages or ()))
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def _get_pkg_data_files(self, package):
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# Locate package source directory
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src_dir = self.get_package_dir(package)
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# Compute package build directory
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build_dir = os.path.join(*([self.build_lib] + package.split('.')))
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# Strip directory from globbed filenames
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filenames = [
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os.path.relpath(file, src_dir)
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for file in self.find_data_files(package, src_dir)
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]
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return package, src_dir, build_dir, filenames
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def find_data_files(self, package, src_dir):
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"""Return filenames for package's data files in 'src_dir'"""
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patterns = self._get_platform_patterns(
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self.package_data,
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package,
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src_dir,
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)
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globs_expanded = map(partial(glob, recursive=True), patterns)
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# flatten the expanded globs into an iterable of matches
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globs_matches = itertools.chain.from_iterable(globs_expanded)
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glob_files = filter(os.path.isfile, globs_matches)
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files = itertools.chain(
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self.manifest_files.get(package, []),
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glob_files,
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)
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return self.exclude_data_files(package, src_dir, files)
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def get_outputs(self, include_bytecode=1) -> List[str]:
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"""See :class:`setuptools.commands.build.SubCommand`"""
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if self.editable_mode:
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return list(self.get_output_mapping().keys())
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return super().get_outputs(include_bytecode)
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def get_output_mapping(self) -> Dict[str, str]:
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"""See :class:`setuptools.commands.build.SubCommand`"""
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mapping = itertools.chain(
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self._get_package_data_output_mapping(),
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self._get_module_mapping(),
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)
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return dict(sorted(mapping, key=lambda x: x[0]))
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def _get_module_mapping(self) -> Iterator[Tuple[str, str]]:
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"""Iterate over all modules producing (dest, src) pairs."""
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for (package, module, module_file) in self.find_all_modules():
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package = package.split('.')
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filename = self.get_module_outfile(self.build_lib, package, module)
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yield (filename, module_file)
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def _get_package_data_output_mapping(self) -> Iterator[Tuple[str, str]]:
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"""Iterate over package data producing (dest, src) pairs."""
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for package, src_dir, build_dir, filenames in self.data_files:
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for filename in filenames:
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target = os.path.join(build_dir, filename)
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srcfile = os.path.join(src_dir, filename)
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yield (target, srcfile)
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def build_package_data(self):
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"""Copy data files into build directory"""
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for target, srcfile in self._get_package_data_output_mapping():
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self.mkpath(os.path.dirname(target))
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_outf, _copied = self.copy_file(srcfile, target)
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make_writable(target)
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def analyze_manifest(self):
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self.manifest_files = mf = {}
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if not self.distribution.include_package_data:
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return
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src_dirs = {}
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for package in self.packages or ():
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# Locate package source directory
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src_dirs[assert_relative(self.get_package_dir(package))] = package
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if (
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getattr(self, 'existing_egg_info_dir', None)
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and Path(self.existing_egg_info_dir, "SOURCES.txt").exists()
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):
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egg_info_dir = self.existing_egg_info_dir
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manifest = Path(egg_info_dir, "SOURCES.txt")
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files = manifest.read_text(encoding="utf-8").splitlines()
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else:
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self.run_command('egg_info')
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ei_cmd = self.get_finalized_command('egg_info')
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egg_info_dir = ei_cmd.egg_info
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files = ei_cmd.filelist.files
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check = _IncludePackageDataAbuse()
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for path in self._filter_build_files(files, egg_info_dir):
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d, f = os.path.split(assert_relative(path))
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prev = None
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oldf = f
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while d and d != prev and d not in src_dirs:
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prev = d
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d, df = os.path.split(d)
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f = os.path.join(df, f)
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if d in src_dirs:
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if f == oldf:
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if check.is_module(f):
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continue # it's a module, not data
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else:
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importable = check.importable_subpackage(src_dirs[d], f)
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if importable:
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check.warn(importable)
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mf.setdefault(src_dirs[d], []).append(path)
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def _filter_build_files(self, files: Iterable[str], egg_info: str) -> Iterator[str]:
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"""
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``build_meta`` may try to create egg_info outside of the project directory,
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and this can be problematic for certain plugins (reported in issue #3500).
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Extensions might also include between their sources files created on the
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``build_lib`` and ``build_temp`` directories.
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This function should filter this case of invalid files out.
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"""
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build = self.get_finalized_command("build")
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build_dirs = (egg_info, self.build_lib, build.build_temp, build.build_base)
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norm_dirs = [os.path.normpath(p) for p in build_dirs if p]
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for file in files:
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norm_path = os.path.normpath(file)
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if not os.path.isabs(file) or all(d not in norm_path for d in norm_dirs):
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yield file
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def get_data_files(self):
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pass # Lazily compute data files in _get_data_files() function.
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def check_package(self, package, package_dir):
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"""Check namespace packages' __init__ for declare_namespace"""
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try:
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return self.packages_checked[package]
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except KeyError:
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pass
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init_py = orig.build_py.check_package(self, package, package_dir)
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self.packages_checked[package] = init_py
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if not init_py or not self.distribution.namespace_packages:
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return init_py
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for pkg in self.distribution.namespace_packages:
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if pkg == package or pkg.startswith(package + '.'):
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break
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else:
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return init_py
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with io.open(init_py, 'rb') as f:
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contents = f.read()
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if b'declare_namespace' not in contents:
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raise distutils.errors.DistutilsError(
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"Namespace package problem: %s is a namespace package, but "
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"its\n__init__.py does not call declare_namespace()! Please "
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'fix it.\n(See the setuptools manual under '
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'"Namespace Packages" for details.)\n"' % (package,)
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)
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return init_py
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def initialize_options(self):
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self.packages_checked = {}
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orig.build_py.initialize_options(self)
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self.editable_mode = False
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self.existing_egg_info_dir = None
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def get_package_dir(self, package):
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res = orig.build_py.get_package_dir(self, package)
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if self.distribution.src_root is not None:
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return os.path.join(self.distribution.src_root, res)
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return res
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def exclude_data_files(self, package, src_dir, files):
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"""Filter filenames for package's data files in 'src_dir'"""
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files = list(files)
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patterns = self._get_platform_patterns(
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self.exclude_package_data,
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package,
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src_dir,
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)
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match_groups = (fnmatch.filter(files, pattern) for pattern in patterns)
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# flatten the groups of matches into an iterable of matches
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matches = itertools.chain.from_iterable(match_groups)
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bad = set(matches)
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keepers = (fn for fn in files if fn not in bad)
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# ditch dupes
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return list(unique_everseen(keepers))
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@staticmethod
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def _get_platform_patterns(spec, package, src_dir):
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"""
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yield platform-specific path patterns (suitable for glob
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or fn_match) from a glob-based spec (such as
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self.package_data or self.exclude_package_data)
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matching package in src_dir.
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"""
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raw_patterns = itertools.chain(
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spec.get('', []),
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spec.get(package, []),
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)
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return (
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# Each pattern has to be converted to a platform-specific path
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os.path.join(src_dir, convert_path(pattern))
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for pattern in raw_patterns
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)
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def assert_relative(path):
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if not os.path.isabs(path):
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return path
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from distutils.errors import DistutilsSetupError
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msg = (
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textwrap.dedent(
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"""
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Error: setup script specifies an absolute path:
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%s
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setup() arguments must *always* be /-separated paths relative to the
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setup.py directory, *never* absolute paths.
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"""
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).lstrip()
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% path
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)
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raise DistutilsSetupError(msg)
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class _IncludePackageDataAbuse:
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"""Inform users that package or module is included as 'data file'"""
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MESSAGE = """\
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Installing {importable!r} as data is deprecated, please list it in `packages`.
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!!\n\n
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############################
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# Package would be ignored #
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############################
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Python recognizes {importable!r} as an importable package,
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but it is not listed in the `packages` configuration of setuptools.
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{importable!r} has been automatically added to the distribution only
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because it may contain data files, but this behavior is likely to change
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in future versions of setuptools (and therefore is considered deprecated).
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Please make sure that {importable!r} is included as a package by using
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the `packages` configuration field or the proper discovery methods
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(for example by using `find_namespace_packages(...)`/`find_namespace:`
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instead of `find_packages(...)`/`find:`).
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You can read more about "package discovery" and "data files" on setuptools
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documentation page.
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\n\n!!
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"""
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def __init__(self):
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self._already_warned = set()
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def is_module(self, file):
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return file.endswith(".py") and file[:-len(".py")].isidentifier()
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def importable_subpackage(self, parent, file):
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pkg = Path(file).parent
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parts = list(itertools.takewhile(str.isidentifier, pkg.parts))
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if parts:
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return ".".join([parent, *parts])
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return None
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def warn(self, importable):
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if importable not in self._already_warned:
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msg = textwrap.dedent(self.MESSAGE).format(importable=importable)
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warnings.warn(msg, SetuptoolsDeprecationWarning, stacklevel=2)
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self._already_warned.add(importable)
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