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import os
import subprocess
import sys
import textwrap
from contextlib import contextmanager
from functools import partial
from pathlib import Path
from flit_core import buildapi
@contextmanager
def sys_path():
orig_path = sys.path[:]
sys.path.insert(0, str(Path.cwd() / "src"))
try:
yield
finally:
sys.path = orig_path
def write_pkgcore_lookup_configs(cleanup_files):
"""Generate file of install path constants."""
cleanup_files.append(path := Path.cwd() / "src/pkgcore/_const.py")
path.parent.mkdir(parents=True, exist_ok=True)
print(f"writing lookup config to {path}")
with open(path, "w") as f:
os.chmod(path, 0o644)
f.write(
textwrap.dedent(
"""\
from os.path import abspath, exists, join
import sys
INSTALL_PREFIX = abspath(sys.prefix)
if not exists(join(INSTALL_PREFIX, 'lib/pkgcore')):
INSTALL_PREFIX = abspath(sys.base_prefix)
DATA_PATH = join(INSTALL_PREFIX, 'share/pkgcore')
CONFIG_PATH = join(DATA_PATH, 'config')
LIBDIR_PATH = join(INSTALL_PREFIX, 'lib/pkgcore')
EBD_PATH = join(LIBDIR_PATH, 'ebd')
INJECTED_BIN_PATH = ()
"""
)
)
def write_verinfo(cleanup_files):
cleanup_files.append(path := Path.cwd() / "src/pkgcore/_verinfo.py")
path.parent.mkdir(parents=True, exist_ok=True)
print(f"generating version info: {path}")
from snakeoil.version import get_git_version
path.write_text(f"version_info={get_git_version(Path.cwd())!r}")
def prepare_pkgcore(callback, consts: bool):
cleanup_files = []
try:
with sys_path():
write_verinfo(cleanup_files)
# Install configuration data so pkgcore knows where to find its content,
# rather than assuming it is running from a tarball/git repo.
if consts:
write_pkgcore_lookup_configs(cleanup_files)
# generate function lists so they don't need to be created on install
if subprocess.call(
[
"make",
f"PYTHON={sys.executable}",
"PYTHONPATH=" + ":".join(sys.path),
],
cwd=Path.cwd() / "data/lib/pkgcore/ebd",
):
raise Exception("Running makefile failed")
return callback()
finally:
for path in cleanup_files:
try:
path.unlink()
except OSError:
pass
def build_wheel(wheel_directory, config_settings=None, metadata_directory=None):
"""Builds a wheel, places it in wheel_directory"""
callback = partial(
buildapi.build_wheel, wheel_directory, config_settings, metadata_directory
)
return prepare_pkgcore(callback, consts=True)
def build_editable(wheel_directory, config_settings=None, metadata_directory=None):
"""Builds an "editable" wheel, places it in wheel_directory"""
callback = partial(
buildapi.build_editable, wheel_directory, config_settings, metadata_directory
)
return prepare_pkgcore(callback, consts=False)
def build_sdist(sdist_directory, config_settings=None):
"""Builds an sdist, places it in sdist_directory"""
callback = partial(buildapi.build_sdist, sdist_directory, config_settings)
return prepare_pkgcore(callback, consts=False)
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