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installer, new python recipe (#7021)
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67
dev-python/installer/installer-0.5.1.recipe
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67
dev-python/installer/installer-0.5.1.recipe
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SUMMARY="A library for installing Python wheels"
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DESCRIPTION="This is a low-level library for installing a Python package from a wheel distribution.
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It provides basic functionality and abstractions for handling wheels and installing packages from \
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wheels.
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- Logic for unpacking a wheel (i.e. installation).
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- Abstractions for various parts of the unpacking process.
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- Extensible simple implementations of the abstractions.
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- Platform-independent Python script wrapper generation."
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HOMEPAGE="https://pypi.org/project/installer/"
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COPYRIGHT="2020 Pradyun Gedam"
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LICENSE="MIT"
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REVISION="1"
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pypiVersion="74/b7/9187323cd732840f1cddd6a9f05961406636b50c799eef37c920b63110c0"
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SOURCE_URI="https://files.pythonhosted.org/packages/$pypiVersion/installer-$portVersion.tar.gz"
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CHECKSUM_SHA256="f970995ec2bb815e2fdaf7977b26b2091e1e386f0f42eafd5ac811953dc5d445"
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PATCHES="1a3a7d208fd48446de3d35e5c640378dc1dfd437.patch"
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ARCHITECTURES="any"
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PROVIDES="
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$portName = $portVersion
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"
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REQUIRES="
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haiku
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"
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BUILD_REQUIRES="
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haiku_devel
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"
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PYTHON_PACKAGES=(python3 python38 python39 python310)
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PYTHON_VERSIONS=(3.7 3.8 3.9 3.10)
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for i in "${!PYTHON_PACKAGES[@]}"; do
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pythonPackage=${PYTHON_PACKAGES[i]}
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pythonVersion=${PYTHON_VERSIONS[$i]}
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eval "PROVIDES_${pythonPackage}=\"\
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${portName}_$pythonPackage = $portVersion\
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\"; \
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REQUIRES_$pythonPackage=\"\
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haiku\n\
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cmd:python$pythonVersion\
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\""
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BUILD_REQUIRES="$BUILD_REQUIRES
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setuptools_$pythonPackage"
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BUILD_PREREQUIRES="$BUILD_PREREQUIRES
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cmd:python$pythonVersion"
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done
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INSTALL()
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{
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for i in "${!PYTHON_PACKAGES[@]}"; do
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pythonPackage=${PYTHON_PACKAGES[i]}
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pythonVersion=${PYTHON_VERSIONS[$i]}
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python=python$pythonVersion
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installLocation=$prefix/lib/$python/vendor-packages/
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export PYTHONPATH=$installLocation:$PYTHONPATH
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mkdir -p $installLocation
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rm -rf build
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$python setup.py build install \
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--root=/ --prefix=$prefix
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packageEntries $pythonPackage \
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$prefix/lib/python*
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done
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}
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@@ -0,0 +1,120 @@
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From 1a3a7d208fd48446de3d35e5c640378dc1dfd437 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
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Date: Sun, 5 Jun 2022 12:08:44 +0200
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Subject: [PATCH] main: Implement --prefix option to override install path
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Implement a --prefix option that can be used to override platbase
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and base when expanding the paths from install scheme. This can be used
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to install paths to a layout using another prefix than the one used
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to run installer.
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Gentoo use case for this is running installer inside a venv to prepare
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installation images for the real system. The nixOS maintainers have
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also indicated interest in this feature.
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---
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src/installer/__main__.py | 23 ++++++++++++++++++-----
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tests/test_main.py | 30 ++++++++++++++++++++++++++++++
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2 files changed, 48 insertions(+), 5 deletions(-)
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diff --git a/src/installer/__main__.py b/src/installer/__main__.py
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index 3357ec5..51014b9 100644
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--- a/src/installer/__main__.py
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+++ b/src/installer/__main__.py
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@@ -23,6 +23,13 @@ def _get_main_parser() -> argparse.ArgumentParser:
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type=str,
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help="destination directory (prefix to prepend to each file)",
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)
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+ parser.add_argument(
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+ "--prefix",
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+ "-p",
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+ metavar="path",
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+ type=str,
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+ help="override prefix to install packages to",
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+ )
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parser.add_argument(
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"--compile-bytecode",
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action="append",
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@@ -39,12 +46,18 @@ def _get_main_parser() -> argparse.ArgumentParser:
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return parser
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-def _get_scheme_dict(distribution_name: str) -> Dict[str, str]:
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+def _get_scheme_dict(
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+ distribution_name: str, prefix: Optional[str] = None
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+) -> Dict[str, str]:
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"""Calculate the scheme dictionary for the current Python environment."""
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- scheme_dict = sysconfig.get_paths()
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+ vars = {}
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+ if prefix is None:
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+ installed_base = sysconfig.get_config_var("base")
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+ assert installed_base
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+ else:
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+ vars["base"] = vars["platbase"] = installed_base = prefix
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- installed_base = sysconfig.get_config_var("base")
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- assert installed_base
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+ scheme_dict = sysconfig.get_paths(vars=vars)
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# calculate 'headers' path, not currently in sysconfig - see
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# https://bugs.python.org/issue44445. This is based on what distutils does.
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@@ -72,7 +85,7 @@ def _main(cli_args: Sequence[str], program: Optional[str] = None) -> None:
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with WheelFile.open(args.wheel) as source:
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destination = SchemeDictionaryDestination(
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- scheme_dict=_get_scheme_dict(source.distribution),
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+ scheme_dict=_get_scheme_dict(source.distribution, prefix=args.prefix),
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interpreter=sys.executable,
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script_kind=get_launcher_kind(),
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bytecode_optimization_levels=bytecode_levels,
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diff --git a/tests/test_main.py b/tests/test_main.py
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index c6f7c40..391a13d 100644
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--- a/tests/test_main.py
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+++ b/tests/test_main.py
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@@ -1,3 +1,5 @@
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+import os
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+
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from installer.__main__ import _get_scheme_dict as get_scheme_dict
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from installer.__main__ import _main as main
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@@ -7,6 +9,14 @@ def test_get_scheme_dict():
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assert set(d.keys()) >= {"purelib", "platlib", "headers", "scripts", "data"}
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+def test_get_scheme_dict_prefix():
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+ d = get_scheme_dict(distribution_name="foo", prefix="/foo")
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+ for key in ("purelib", "platlib", "headers", "scripts", "data"):
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+ assert d[key].startswith(
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+ f"{os.sep}foo"
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+ ), f"{key} does not start with /foo: {d[key]}"
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+
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+
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def test_main(fancy_wheel, tmp_path):
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destdir = tmp_path / "dest"
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@@ -23,6 +33,26 @@ def test_main(fancy_wheel, tmp_path):
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}
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+def test_main_prefix(fancy_wheel, tmp_path):
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+ destdir = tmp_path / "dest"
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+
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+ main([str(fancy_wheel), "-d", str(destdir), "-p", "/foo"], "python -m installer")
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+
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+ installed_py_files = list(destdir.rglob("*.py"))
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+
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+ for f in installed_py_files:
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+ assert str(f.parent).startswith(
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+ str(destdir / "foo")
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+ ), f"path does not respect destdir+prefix: {f}"
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+ assert {f.stem for f in installed_py_files} == {"__init__", "__main__", "data"}
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+
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+ installed_pyc_files = destdir.rglob("*.pyc")
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+ assert {f.name.split(".")[0] for f in installed_pyc_files} == {
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+ "__init__",
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+ "__main__",
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+ }
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+
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+
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def test_main_no_pyc(fancy_wheel, tmp_path):
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destdir = tmp_path / "dest"
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