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- """Legacy installation process, i.e. `setup.py install`.
- """
- import logging
- import os
- from distutils.util import change_root
- from typing import List, Optional, Sequence
- from pip._internal.build_env import BuildEnvironment
- from pip._internal.exceptions import InstallationError
- from pip._internal.models.scheme import Scheme
- from pip._internal.utils.logging import indent_log
- from pip._internal.utils.misc import ensure_dir
- from pip._internal.utils.setuptools_build import make_setuptools_install_args
- from pip._internal.utils.subprocess import runner_with_spinner_message
- from pip._internal.utils.temp_dir import TempDirectory
- logger = logging.getLogger(__name__)
- class LegacyInstallFailure(Exception):
- pass
- def write_installed_files_from_setuptools_record(
- record_lines: List[str],
- root: Optional[str],
- req_description: str,
- ) -> None:
- def prepend_root(path: str) -> str:
- if root is None or not os.path.isabs(path):
- return path
- else:
- return change_root(root, path)
- for line in record_lines:
- directory = os.path.dirname(line)
- if directory.endswith(".egg-info"):
- egg_info_dir = prepend_root(directory)
- break
- else:
- message = (
- "{} did not indicate that it installed an "
- ".egg-info directory. Only setup.py projects "
- "generating .egg-info directories are supported."
- ).format(req_description)
- raise InstallationError(message)
- new_lines = []
- for line in record_lines:
- filename = line.strip()
- if os.path.isdir(filename):
- filename += os.path.sep
- new_lines.append(os.path.relpath(prepend_root(filename), egg_info_dir))
- new_lines.sort()
- ensure_dir(egg_info_dir)
- inst_files_path = os.path.join(egg_info_dir, "installed-files.txt")
- with open(inst_files_path, "w") as f:
- f.write("\n".join(new_lines) + "\n")
- def install(
- install_options: List[str],
- global_options: Sequence[str],
- root: Optional[str],
- home: Optional[str],
- prefix: Optional[str],
- use_user_site: bool,
- pycompile: bool,
- scheme: Scheme,
- setup_py_path: str,
- isolated: bool,
- req_name: str,
- build_env: BuildEnvironment,
- unpacked_source_directory: str,
- req_description: str,
- ) -> bool:
- header_dir = scheme.headers
- with TempDirectory(kind="record") as temp_dir:
- try:
- record_filename = os.path.join(temp_dir.path, "install-record.txt")
- install_args = make_setuptools_install_args(
- setup_py_path,
- global_options=global_options,
- install_options=install_options,
- record_filename=record_filename,
- root=root,
- prefix=prefix,
- header_dir=header_dir,
- home=home,
- use_user_site=use_user_site,
- no_user_config=isolated,
- pycompile=pycompile,
- )
- runner = runner_with_spinner_message(
- f"Running setup.py install for {req_name}"
- )
- with indent_log(), build_env:
- runner(
- cmd=install_args,
- cwd=unpacked_source_directory,
- )
- if not os.path.exists(record_filename):
- logger.debug("Record file %s not found", record_filename)
- # Signal to the caller that we didn't install the new package
- return False
- except Exception as e:
- # Signal to the caller that we didn't install the new package
- raise LegacyInstallFailure from e
- # At this point, we have successfully installed the requirement.
- # We intentionally do not use any encoding to read the file because
- # setuptools writes the file using distutils.file_util.write_file,
- # which does not specify an encoding.
- with open(record_filename) as f:
- record_lines = f.read().splitlines()
- write_installed_files_from_setuptools_record(record_lines, root, req_description)
- return True
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