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pw
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#!/usr/bin/env python3
##################################################################################
# Pyprojectx wrapper script #
# https://github.com/pyprojectx/pyprojectx #
# #
# Copyright (c) 2021 Ivo Houbrechts #
# #
# Licensed under the MIT license #
##################################################################################
import argparse
import os
import subprocess
import sys
from pathlib import Path
from venv import EnvBuilder
VERSION = "2.0.8"
PYPROJECTX_INSTALL_DIR_ENV_VAR = "PYPROJECTX_INSTALL_DIR"
PYPROJECTX_PACKAGE_ENV_VAR = "PYPROJECTX_PACKAGE"
PYPROJECT_TOML = "pyproject.toml"
DEFAULT_INSTALL_DIR = ".pyprojectx"
CYAN = "\033[96m"
BLUE = "\033[94m"
RED = "\033[91m"
RESET = "\033[0m"
if sys.platform.startswith("win"):
os.system("color")
def run(args):
try:
options = get_options(args)
pyprojectx_script = ensure_pyprojectx(options)
explicit_options = []
if not options.toml:
explicit_options += ["--toml", str(options.toml_path)]
if not options.install_dir:
explicit_options += ["--install-dir", str(options.install_path)]
subprocess.run([str(pyprojectx_script), *explicit_options, *args], check=True)
except subprocess.CalledProcessError as e:
raise SystemExit(e.returncode) from e
def get_options(args):
options = arg_parser().parse_args(args)
options.install_path = Path(
options.install_dir
or os.environ.get(
PYPROJECTX_INSTALL_DIR_ENV_VAR,
Path(__file__).with_name(DEFAULT_INSTALL_DIR),
)
)
options.toml_path = (
Path(options.toml) if options.toml else Path(__file__).with_name(PYPROJECT_TOML)
)
if os.environ.get(PYPROJECTX_PACKAGE_ENV_VAR):
options.version = "development"
options.pyprojectx_package = os.environ.get(PYPROJECTX_PACKAGE_ENV_VAR)
else:
options.version = VERSION
options.pyprojectx_package = f"pyprojectx~={VERSION}"
options.verbosity = (
0 if options.quiet or not options.verbosity else options.verbosity
)
return options
def arg_parser():
parser = argparse.ArgumentParser(
description="Execute commands or aliases defined in the [tool.pyprojectx] section of pyproject.toml. "
"Use the -i or --info option to see available tools and aliases.",
allow_abbrev=False,
)
parser.add_argument("--version", action="version", version=VERSION)
parser.add_argument(
"--toml",
"-t",
action="store",
help="The toml config file. Defaults to 'pyproject.toml' in the same directory as the pw script.",
)
parser.add_argument(
"--install-dir",
action="store",
help=f"The directory where all tools (including pyprojectx) are installed; defaults to the "
f"{PYPROJECTX_INSTALL_DIR_ENV_VAR} environment value if set, else '.pyprojectx' "
f"in the same directory as the invoked pw script",
)
parser.add_argument(
"--force-install",
"-f",
action="store_true",
help="Force clean installation of the virtual environment used to run cmd, if any",
)
parser.add_argument(
"--install-context",
action="store",
metavar="tool-context",
help="Install a tool context without actually running any command.",
)
parser.add_argument(
"--verbose",
"-v",
action="count",
dest="verbosity",
help="Give more output. This option is additive and can be used up to 2 times.",
)
parser.add_argument(
"--quiet",
"-q",
action="store_true",
help="Suppress output",
)
parser.add_argument(
"--info",
"-i",
action="store_true",
help="Show the configuration details of a command instead of running it. "
"If no command is specified, a list with all available tools and aliases is shown.",
)
parser.add_argument(
"--add",
action="store",
metavar="[context:]<package>,<package>...",
help="Add one or more packages to a tool context. "
"If no context is specified, the packages are added to the main context. "
"Packages can be specified as in 'pip install', except that a ',' can't be used in the version specification.",
)
parser.add_argument(
"--lock",
action="store_true",
help="Write all dependencies of all tool contexts to 'pw.lock' to guarantee reproducible outcomes.",
)
parser.add_argument(
"--install-px",
action="store_true",
help="Install the px and pxg scripts in your home directory.",
)
parser.add_argument(
"--upgrade",
action="store_true",
help="Print instructions to download the latest pyprojectx wrapper scripts.",
)
parser.add_argument(
"command",
nargs=argparse.REMAINDER,
help="The command/alias with optional arguments to execute.",
)
return parser
def ensure_pyprojectx(options):
env_builder = EnvBuilder(with_pip=True)
venv_dir = options.install_path.joinpath(
"pyprojectx",
f"{options.version}-py{sys.version_info.major}.{sys.version_info.minor}",
)
env_context = env_builder.ensure_directories(venv_dir)
pyprojectx_script = Path(env_context.bin_path, "pyprojectx")
pyprojectx_exe = Path(env_context.bin_path, "pyprojectx.exe")
pip_cmd = [env_context.env_exe, "-m", "pip", "install"]
if options.quiet:
out = subprocess.DEVNULL
pip_cmd.append("--quiet")
else:
out = sys.stderr
if not pyprojectx_script.is_file() and not pyprojectx_exe.is_file():
if not options.quiet:
print(
f"{CYAN}creating pyprojectx venv in {BLUE}{venv_dir}{RESET}",
file=sys.stderr,
)
env_builder.create(venv_dir)
subprocess.run(
[*pip_cmd, "--upgrade", "pip"],
stdout=out,
check=True,
)
if not options.quiet:
print(
f"{CYAN}installing pyprojectx {BLUE}{options.version}: {options.pyprojectx_package} {RESET}",
file=sys.stderr,
)
if options.version == "development":
if not options.quiet:
print(
f"{RED}WARNING: {options.pyprojectx_package} is installed in editable mode{RESET}",
file=sys.stderr,
)
pip_cmd.append("-e")
subprocess.run([*pip_cmd, options.pyprojectx_package], stdout=out, check=True)
return pyprojectx_script
if __name__ == "__main__":
run(sys.argv[1:])