Files
mongo/bazel/toolchains/python_toolchain.bzl
2023-11-28 23:58:43 +00:00

199 lines
7.2 KiB
Python

"""Repository rules for rules_py_simple"""
_OS_MAP = {
"macos": "@platforms//os:osx",
"linux": "@platforms//os:linux",
"windows": "@platforms//os:windows",
}
_ARCH_MAP = {
"amd64": "@platforms//cpu:x86_64",
"aarch64": "@platforms//cpu:arm64",
"x86_64": "@platforms//cpu:x86_64",
}
URLS_MAP = {
"linux_aarch64":{
"sha": "c7573fdb00239f86b22ea0e8e926ca881d24fde5e5890851339911d76110bc35",
"url": "https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-aarch64-unknown-linux-gnu-install_only.tar.gz",
"interpreter_path": "bin/python3",
},
"linux_amd64":{
"sha": "c5bcaac91bc80bfc29cf510669ecad12d506035ecb3ad85ef213416d54aecd79",
"url": "https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-x86_64-unknown-linux-gnu-install_only.tar.gz",
"interpreter_path": "bin/python3",
},
"windows_amd64":{
"sha": "97ebca93a928802f421387dcc6ec5403a3e513f43c2df35b7c3e3cca844d79d0",
"url": "https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-x86_64-pc-windows-msvc-static-install_only.tar.gz",
"interpreter_path": "python3.exe",
},
"macos_aarch64":{
"sha": "8348bc3c2311f94ec63751fb71bd0108174be1c4def002773cf519ee1506f96f",
"url": "https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-aarch64-apple-darwin-install_only.tar.gz",
"interpreter_path": "bin/python3",
},
"macos_x86_64":{
"sha": "bd3fc6e4da6f4033ebf19d66704e73b0804c22641ddae10bbe347c48f82374ad",
"url": "https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-x86_64-apple-darwin-install_only.tar.gz",
"interpreter_path": "bin/python3",
}
}
def _py_download(ctx):
"""
Downloads and builds a Python distribution.
Args:
ctx: Repository context.
"""
if ctx.attr.os:
os = ctx.attr.os
else:
if "win" in ctx.os.name:
os = "windows"
elif "mac" in ctx.os.name:
os = "macos"
else:
os = "linux"
if ctx.attr.arch:
arch = ctx.attr.arch
else:
arch = ctx.os.arch
if ctx.attr.urls:
urls = ctx.attr.urls
sha = ctx.attr.sha256
interpreter_path = ctx.attr.interpreter_path
else:
platform_info = URLS_MAP["{os}_{arch}".format(os=os, arch=arch)]
urls = platform_info['url']
sha = platform_info['sha']
interpreter_path = platform_info['interpreter_path']
ctx.report_progress("downloading python")
ctx.download_and_extract(
url = urls,
sha256 = sha,
stripPrefix = "python",
)
ctx.report_progress("generating build file")
os_constraint = _OS_MAP[os]
arch_constraint = _ARCH_MAP[arch]
constraints = [os_constraint, arch_constraint]
# So Starlark doesn't throw an indentation error when this gets injected.
constraints_str = ",\n ".join(['"%s"' % c for c in constraints])
# Inject our string substitutions into the BUILD file template, and drop said BUILD file in the WORKSPACE root of the repository.
substitutions = {
"{constraints}": constraints_str,
"{interpreter_path}": interpreter_path,
}
ctx.template(
"BUILD.bazel",
ctx.attr.build_tpl,
substitutions = substitutions,
)
return None
py_download = repository_rule(
implementation = _py_download,
attrs = {
"urls": attr.string_list(
doc = "String list of mirror URLs where the Python distribution can be downloaded.",
),
"sha256": attr.string(
doc = "Expected SHA-256 sum of the archive.",
),
"os": attr.string(
values = ["macos", "linux", "windows"],
doc = "Host operating system.",
),
"arch": attr.string(
values = ["amd64", "aarch64"],
doc = "Host architecture.",
),
"interpreter_path": attr.string(
default = "bin/python3",
doc = "Path you'd expect the python interpreter binary to live.",
),
"build_tpl": attr.label(
default = "//bazel/toolchains:python_toolchain.BUILD",
doc = "Label denoting the BUILD file template that get's installed in the repo.",
),
},
)
def setup_mongo_python_toolchains():
# This will autoselect a toolchain that matches the host environment
# this toolchain is intended be used only for local repository exectutions,
# and will not be registered as a bazel toolchain by omitting from the return
# value below.
py_download(
name = "py_host",
)
py_download(
name = "py_linux_arm64",
arch = "aarch64",
os = "linux",
build_tpl = "//bazel/toolchains:python_toolchain.BUILD",
sha256 = "c7573fdb00239f86b22ea0e8e926ca881d24fde5e5890851339911d76110bc35",
urls = ["https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-aarch64-unknown-linux-gnu-install_only.tar.gz"],
)
py_download(
name = "py_linux_x86_64",
arch = "amd64",
os = "linux",
build_tpl = "//bazel/toolchains:python_toolchain.BUILD",
sha256 = "c5bcaac91bc80bfc29cf510669ecad12d506035ecb3ad85ef213416d54aecd79",
urls = ["https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-x86_64-unknown-linux-gnu-install_only.tar.gz"],
)
py_download(
name = "py_windows_x86_64",
arch = "amd64",
os = "windows",
build_tpl = "//bazel/toolchains:python_toolchain.BUILD",
interpreter_path = "python.exe",
sha256 = "97ebca93a928802f421387dcc6ec5403a3e513f43c2df35b7c3e3cca844d79d0",
urls = ["https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-x86_64-pc-windows-msvc-static-install_only.tar.gz"],
)
py_download(
name = "py_macos_arm64",
arch = "aarch64",
os = "macos",
build_tpl = "//bazel/toolchains:python_toolchain.BUILD",
sha256 = "8348bc3c2311f94ec63751fb71bd0108174be1c4def002773cf519ee1506f96f",
urls = ["https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-aarch64-apple-darwin-install_only.tar.gz"],
)
py_download(
name = "py_macos_x86_64",
arch = "amd64",
os = "macos",
build_tpl = "//bazel/toolchains:python_toolchain.BUILD",
sha256 ="bd3fc6e4da6f4033ebf19d66704e73b0804c22641ddae10bbe347c48f82374ad",
urls = ["https://github.com/indygreg/python-build-standalone/releases/download/20230507/cpython-3.10.11+20230507-x86_64-apple-darwin-install_only.tar.gz"],
)
return (
"@py_linux_arm64//:python_toolchain",
"@py_linux_x86_64//:python_toolchain",
"@py_windows_x86_64//:python_toolchain",
"@py_macos_arm64//:python_toolchain",
"@py_macos_x86_64//:python_toolchain",
)