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"""Legacy installation process, i.e. `setup.py install`.
"""
import logging
import os
import sys
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):
def __init__(self) -> None:
self.parent = sys.exc_info()
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:
# Signal to the caller that we didn't install the new package
raise LegacyInstallFailure
# 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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