Initial commit

main
kirbylife 2023-11-02 02:14:32 -06:00
commit e78719d414
11 changed files with 321 additions and 0 deletions

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README.md 100644
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dist/nvexpo-0.1.0.tar.gz vendored 100644

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nvexpo/__init__.py 100644
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#!/bin/python
import sys
from nvexpo import nvexpo
def main() -> int:
args = sys.argv
if len(args) <= 1:
nvexpo.help()
return 0
if len(args) == 2 and args[1] in ["--load"]:
nvexpo.load()
return 0
if args[1] in ["--unset"]:
nvexpo.unset_env(args[2:])
return 0
if args[1] in ["init"]:
try:
nvexpo.init(args[2])
except IndexError:
nvexpo.init()
return 0
raw_vars = args[1:]
if not all("=" in x for x in raw_vars):
nvexpo.help()
return 1
variables = {}
for raw_var in raw_vars:
try:
key, value = raw_var.split("=", 1)
except ValueError:
nvexpo.help()
return 1
key = key.strip("=")
value = value.strip("=").strip("\"")
variables[key] = value
if not key or not value:
nvexpo.help()
return 1
nvexpo.set_env(variables)
return 0
if __name__ == "__main__":
sys.exit(main())

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nvexpo/nvexpo.py 100644
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import os
import sys
from enum import Enum
from pathlib import Path
from typing import IO, Any, Dict, List
ENV_VARS = Path.home() / ".nvexpo.env"
class Mode(Enum):
R = "r"
W = "w"
class Cmd(Enum):
Set = "export"
Unset = "unset"
def _get_file(mode: Mode) -> IO[Any]:
return ENV_VARS.open(mode.value)
def _get_saved_vars() -> Dict[str, str]:
output = {}
with _get_file(Mode.R) as file:
for line in file:
line = line.strip()
if not line:
continue
key, value = line.split("=", 1)
output[key] = value
return output
def _save_vars(variables: Dict[str, str]):
new_variables = [f"{key}={value}" for key, value in variables.items()]
with _get_file(Mode.W) as file:
file.write("\n".join(new_variables))
def _print_bulk(attrs: List[str], cmd: Cmd):
for attr in attrs:
print(f"{cmd.value} {attr}")
def _load():
current_vars = _get_saved_vars()
attrs = [f"{key}={value}" for key, value in current_vars.items()]
_print_bulk(attrs, Cmd.Set)
def set_env(variables: Dict[str, str]):
current_vars = _get_saved_vars()
current_vars.update(variables)
_save_vars(current_vars)
_load()
def unset_env(variables: List[str]):
current_vars = _get_saved_vars()
for var in variables:
current_vars.pop(var, None)
_save_vars(current_vars)
_print_bulk(variables, Cmd.Unset)
def help(error: None | str = None):
msg = """
nx: Non-Volatile Export
Basic usage:
- Set a simple var
$ nx VAR1="hello world"
$ echo VAR1
hello world
- Unset the variable
$ nx --unset VAR1
$ echo VAR1
<nothing>
- Persist into bash sessions
$ bash
$ nx VAR1="hello world"
$ exit
$ bash
$ echo $VAR1
hello world
""".strip()
msg = "\n".join(map(str.strip, msg.splitlines()))
print(msg, file=sys.stderr)
def init(shell: str | None = None):
if shell is None:
shell = "bash"
if shell == "bash":
cmd = """
function nx(){
eval "$(poetry run nvexpo $@)"
}
"""
print(cmd)
_load()
if not os.path.exists(ENV_VARS):
_get_file(Mode.W).close()

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poetry.lock generated 100644
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mypy-extensions = ">=1.0.0"
tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
typing-extensions = ">=4.1.0"
[package.extras]
dmypy = ["psutil (>=4.0)"]
install-types = ["pip"]
reports = ["lxml"]
[[package]]
name = "mypy-extensions"
version = "1.0.0"
description = "Type system extensions for programs checked with the mypy type checker."
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python-versions = ">=3.5"
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description = "An extremely fast Python linter, written in Rust."
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[metadata]
lock-version = "2.0"
python-versions = "^3.8"
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pyproject.toml 100644
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[tool.poetry]
name = "nvexpo"
version = "0.1.0"
description = ""
authors = ["kirbylife <kirbylife@protonmail.com>"]
readme = "README.md"
[tool.poetry.dependencies]
python = "^3.8"
[tool.poetry.scripts]
nvexpo = "nvexpo:main"
[tool.poetry.group.dev.dependencies]
ruff = "^0.1.3"
mypy = "^1.6.1"
[tool.poe.tasks]
format = "ruff format ."
linter = "ruff nvexpo"
typing = "mypy nvexpo"
[tool.ruff]
target-version = "py38"
line-length=120
indent-width=4
[tool.ruff.lint]
select = ["ALL"]
ignore = [
"EXE001",
"D100",
"D101",
"D103",
"D104",
"PLR0911",
"T201",
"PLR2004",
"FA102"
]
fixable = ["ALL"]
[tool.ruff.format]
quote-style = "double"
indent-style = "space"
[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"

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test.env 100644
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HELLO=10

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