# SPDX-License-Identifier: Apache-2.0
# Copyright Contributors to the Rez Project
"""
Binds a python executable as a rez package.
"""
from __future__ import absolute_import
from rez.bind._utils import check_version, find_exe, extract_version, \
make_dirs, log, run_python_command
from rez.package_maker import make_package
from rez.system import system
from rez.utils.lint_helper import env
from rez.utils.platform_ import platform_
import shutil
import os.path
[docs]def setup_parser(parser):
parser.add_argument("--exe", type=str, metavar="PATH",
help="bind an interpreter other than the current "
"python interpreter")
[docs]def commands():
env.PATH.append('{this.root}/bin')
[docs]def post_commands():
# these are the builtin modules for this python executable. If we don't
# include these, some python behavior can be incorrect.
import os
import os.path
path = os.path.join(this.root, "python") # noqa
for dirname in os.listdir(path):
path_ = os.path.join(path, dirname)
env.PYTHONPATH.append(path_)
[docs]def bind(path, version_range=None, opts=None, parser=None):
# find executable, determine version
exepath = find_exe("python", opts.exe)
code = "import sys; print('.'.join(str(x) for x in sys.version_info))"
version = extract_version(exepath, ["-c", code])
check_version(version, version_range)
log("binding python: %s" % exepath)
# find builtin modules
builtin_paths = {}
entries = [("lib", "os"),
("extra", "setuptools")]
for dirname, module_name in entries:
success, out, err = run_python_command([
"import %s" % module_name,
"print(%s.__file__)" % module_name])
if success:
pypath = os.path.dirname(out)
if os.path.basename(pypath) == module_name:
pypath = os.path.dirname(pypath)
if pypath not in builtin_paths.values():
builtin_paths[dirname] = pypath
# make the package
#
def make_root(variant, root):
binpath = make_dirs(root, "bin")
link = os.path.join(binpath, "python")
platform_.symlink(exepath, link)
if builtin_paths:
pypath = make_dirs(root, "python")
for dirname, srcpath in builtin_paths.items():
destpath = os.path.join(pypath, dirname)
log("Copying builtins from %s to %s..." % (srcpath, destpath))
shutil.copytree(srcpath, destpath)
with make_package("python", path, make_root=make_root) as pkg:
pkg.version = version
pkg.tools = ["python"]
pkg.commands = commands
pkg.variants = [system.variant]
if builtin_paths:
pkg.post_commands = post_commands
return pkg.installed_variants