133 lines
4.5 KiB
Python
133 lines
4.5 KiB
Python
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"""Bootstrap."""
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from __future__ import annotations
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import logging
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import sys
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from operator import eq, lt
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from pathlib import Path
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from subprocess import PIPE, CalledProcessError, Popen
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from .bundle import from_bundle
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from .periodic_update import add_wheel_to_update_log
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from .util import Version, Wheel, discover_wheels
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def get_wheel( # noqa: PLR0913
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distribution,
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version,
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for_py_version,
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search_dirs,
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download,
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app_data,
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do_periodic_update,
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env,
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):
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"""Get a wheel with the given distribution-version-for_py_version trio, by using the extra search dir + download."""
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# not all wheels are compatible with all python versions, so we need to py version qualify it
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wheel = None
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if not download or version != Version.bundle:
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# 1. acquire from bundle
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wheel = from_bundle(distribution, version, for_py_version, search_dirs, app_data, do_periodic_update, env)
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if download and wheel is None and version != Version.embed:
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# 2. download from the internet
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wheel = download_wheel(
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distribution=distribution,
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version_spec=Version.as_version_spec(version),
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for_py_version=for_py_version,
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search_dirs=search_dirs,
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app_data=app_data,
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to_folder=app_data.house,
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env=env,
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)
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if wheel is not None and app_data.can_update:
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add_wheel_to_update_log(wheel, for_py_version, app_data)
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return wheel
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def download_wheel(distribution, version_spec, for_py_version, search_dirs, app_data, to_folder, env): # noqa: PLR0913
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to_download = f"{distribution}{version_spec or ''}"
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logging.debug("download wheel %s %s to %s", to_download, for_py_version, to_folder)
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cmd = [
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sys.executable,
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"-m",
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"pip",
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"download",
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"--progress-bar",
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"off",
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"--disable-pip-version-check",
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"--only-binary=:all:",
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"--no-deps",
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"--python-version",
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for_py_version,
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"-d",
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str(to_folder),
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to_download,
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]
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# pip has no interface in python - must be a new sub-process
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env = pip_wheel_env_run(search_dirs, app_data, env)
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process = Popen(cmd, env=env, stdout=PIPE, stderr=PIPE, universal_newlines=True, encoding="utf-8") # noqa: S603
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out, err = process.communicate()
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if process.returncode != 0:
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kwargs = {"output": out, "stderr": err}
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raise CalledProcessError(process.returncode, cmd, **kwargs)
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result = _find_downloaded_wheel(distribution, version_spec, for_py_version, to_folder, out)
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logging.debug("downloaded wheel %s", result.name)
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return result
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def _find_downloaded_wheel(distribution, version_spec, for_py_version, to_folder, out):
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for line in out.splitlines():
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stripped_line = line.lstrip()
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for marker in ("Saved ", "File was already downloaded "):
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if stripped_line.startswith(marker):
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return Wheel(Path(stripped_line[len(marker) :]).absolute())
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# if for some reason the output does not match fallback to the latest version with that spec
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return find_compatible_in_house(distribution, version_spec, for_py_version, to_folder)
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def find_compatible_in_house(distribution, version_spec, for_py_version, in_folder):
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wheels = discover_wheels(in_folder, distribution, None, for_py_version)
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start, end = 0, len(wheels)
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if version_spec is not None and version_spec:
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if version_spec.startswith("<"):
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from_pos, op = 1, lt
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elif version_spec.startswith("=="):
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from_pos, op = 2, eq
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else:
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raise ValueError(version_spec)
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version = Wheel.as_version_tuple(version_spec[from_pos:])
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start = next((at for at, w in enumerate(wheels) if op(w.version_tuple, version)), len(wheels))
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return None if start == end else wheels[start]
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def pip_wheel_env_run(search_dirs, app_data, env):
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env = env.copy()
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env.update({"PIP_USE_WHEEL": "1", "PIP_USER": "0", "PIP_NO_INPUT": "1"})
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wheel = get_wheel(
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distribution="pip",
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version=None,
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for_py_version=f"{sys.version_info.major}.{sys.version_info.minor}",
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search_dirs=search_dirs,
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download=False,
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app_data=app_data,
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do_periodic_update=False,
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env=env,
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)
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if wheel is None:
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msg = "could not find the embedded pip"
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raise RuntimeError(msg)
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env["PYTHONPATH"] = str(wheel.path)
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return env
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__all__ = [
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"get_wheel",
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"download_wheel",
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"pip_wheel_env_run",
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]
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